[{"title":"Use What You Know: Network and Service Coordination Beyond Certainty","publisher":"IEEE","date_created":"2022-01-11T08:43:26Z","year":"2022","quality_controlled":"1","keyword":["network management","service management","AI","Monte Carlo Tree Search","model-based","QoS"],"ddc":["004"],"language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"Modern services often comprise several components, such as chained virtual network functions, microservices, or\r\nmachine learning functions. Providing such services requires to decide how often to instantiate each component, where to place these instances in the network, how to chain them and route traffic through them. \r\nTo overcome limitations of conventional, hardwired heuristics, deep reinforcement learning (DRL) approaches for self-learning network and service management have emerged recently. These model-free DRL approaches are more flexible but typically learn tabula rasa, i.e., disregard existing understanding of networks, services, and their coordination. \r\n\r\nInstead, we propose FutureCoord, a novel model-based AI approach that leverages existing understanding of networks and services for more efficient and effective coordination without time-intensive training. FutureCoord combines Monte Carlo Tree Search with a stochastic traffic model. This allows FutureCoord to estimate the impact of future incoming traffic and effectively optimize long-term effects, taking fluctuating demand and Quality of Service (QoS) requirements into account. Our extensive evaluation based on real-world network topologies, services, and traffic traces indicates that FutureCoord clearly outperforms state-of-the-art model-free and model-based approaches with up to 51% higher flow success ratios."}],"file":[{"creator":"stschn","date_created":"2022-01-11T08:39:57Z","date_updated":"2022-01-11T08:39:57Z","file_id":"29222","access_level":"open_access","file_name":"author_version.pdf","file_size":528653,"content_type":"application/pdf","relation":"main_file"}],"publication":"IEEE/IFIP Network Operations and Management Symposium (NOMS)","conference":{"end_date":"2022-04-29","location":"Budapest","name":"IEEE/IFIP Network Operations and Management Symposium (NOMS)","start_date":"2022-04-25"},"date_updated":"2022-01-11T08:44:04Z","oa":"1","author":[{"full_name":"Werner, Stefan","last_name":"Werner","first_name":"Stefan"},{"first_name":"Stefan Balthasar","orcid":"0000-0001-8210-4011","last_name":"Schneider","id":"35343","full_name":"Schneider, Stefan Balthasar"},{"first_name":"Holger","last_name":"Karl","id":"126","full_name":"Karl, Holger"}],"citation":{"ama":"Werner S, Schneider SB, Karl H. Use What You Know: Network and Service Coordination Beyond Certainty. In: <i>IEEE/IFIP Network Operations and Management Symposium (NOMS)</i>. IEEE; 2022.","ieee":"S. Werner, S. B. Schneider, and H. Karl, “Use What You Know: Network and Service Coordination Beyond Certainty,” presented at the IEEE/IFIP Network Operations and Management Symposium (NOMS), Budapest, 2022.","chicago":"Werner, Stefan, Stefan Balthasar Schneider, and Holger Karl. “Use What You Know: Network and Service Coordination Beyond Certainty.” In <i>IEEE/IFIP Network Operations and Management Symposium (NOMS)</i>. IEEE, 2022.","apa":"Werner, S., Schneider, S. B., &#38; Karl, H. (2022). Use What You Know: Network and Service Coordination Beyond Certainty. <i>IEEE/IFIP Network Operations and Management Symposium (NOMS)</i>. IEEE/IFIP Network Operations and Management Symposium (NOMS), Budapest.","bibtex":"@inproceedings{Werner_Schneider_Karl_2022, title={Use What You Know: Network and Service Coordination Beyond Certainty}, booktitle={IEEE/IFIP Network Operations and Management Symposium (NOMS)}, publisher={IEEE}, author={Werner, Stefan and Schneider, Stefan Balthasar and Karl, Holger}, year={2022} }","mla":"Werner, Stefan, et al. “Use What You Know: Network and Service Coordination Beyond Certainty.” <i>IEEE/IFIP Network Operations and Management Symposium (NOMS)</i>, IEEE, 2022.","short":"S. Werner, S.B. Schneider, H. Karl, in: IEEE/IFIP Network Operations and Management Symposium (NOMS), IEEE, 2022."},"has_accepted_license":"1","file_date_updated":"2022-01-11T08:39:57Z","_id":"29220","project":[{"_id":"1","name":"SFB 901: SFB 901"},{"_id":"4","name":"SFB 901 - C: SFB 901 - Project Area C"},{"_id":"16","name":"SFB 901 - C4: SFB 901 - Subproject C4"}],"department":[{"_id":"75"}],"user_id":"35343","status":"public","type":"conference"},{"publication":"Österreichische Religionspädagogische Forum","type":"journal_article","abstract":[{"text":"Im Zentrum dieses Beitrags stehen Ergebnisse der Messung pädagogischer Kompetenzen Studierender der Theologie, die das Praxissemester in Deutschland absolviert haben. Das bildungswissenschaftliche Wissen, Kompetenzselbsteinschätzungen und ihre Entwicklung sowie die Einschätzung der im Praxissemester erreichten Ziele Studierender werden dabei unter Berücksichtigung der Ausrichtung des Lehramtsstudiums auf eine Schulform betrachtet. Um die Ergebnisse der Messung bildungswissenschaftlichen Wissens und die der Messung von Kompetenzselbsteinschätzungen zu kontextualisieren (N = 304), wird zuerst die Relevanz des (bildungswissenschaftlichen) Wissens als Ausgangspunkt des Könnens herausgearbeitet. Daran anschließend werden Befunde zur schulformspezifischen Professionalisierung resümiert. Anschließend werden Hypothesen hergeleitet, die Anlage der Studie sowie die Testinstrumente vorge- stellt, die Ergebnisse präsentiert und diskutiert. Die Ergebnisse zeigen wider Erwarten, dass sich weder das bildungswissenschaftliche Wissen, die Kompetenzselbsteinschätzungen und ihre Entwicklung noch die Einschätzung der im Praxissemester erreichten Ziele angehender Lehrkräfte in Abhängigkeit der Schulformen unterscheiden. Die Diskussion bezieht sich u.a. auf die Struktur der Lehramtsstudiengänge, die Denkfiguren zur Entwicklung von Können und die Konzeption der Messinstrumente.\r\n","lang":"ger"},{"text":"The focus of this article are the results of the measurement of pedagogical competencies of students of theology who have completed an internship in Germany. The educational knowledge, competence self-assessments and their development as well as the assessment of the goals achieved by students in the internship are considered, taking into account the orientation of the teacher education course towards a school type. In order to contextualize the results of the measurement of educational knowledge and those of the survey of competence self-assessments (N = 304), ideas are shown how the relationship between knowledge and ability is constituted and findings on the type of school-specific professionalization are summarized. Subsequently, hypotheses are derived, the design of the study, the method and the test instruments are described, the results are presented and discussed. Contrary to expectations, the results show that neither the educational science knowledge, the competence self-assessments and their development nor the assessment of the goals achieved in the internship by pros- pective teachers differ depending on the type of school. The discussion relates to on the structure of the teacher training courses, the mental figures for the development of skills and the conception of the measuring instruments.\r\n","lang":"eng"}],"status":"public","_id":"35136","user_id":"86519","keyword":["Bildungswissenschaftliches Wissen","Kompetenzmessung","Kompetenzselbsteinschätzung","Praxissemester","Professionalisierung / competence measurement","competence self-assessment","educational knowledge","internship","professionalization"],"language":[{"iso":"ger"}],"alternative_title":["Ergebnisse der Messung pädagogischer Kompetenzen Studierender in Deutschland"],"publication_identifier":{"issn":["1018-1539"]},"publication_status":"published","issue":"1","year":"2022","page":"239-260","intvolume":"        30","citation":{"ieee":"C. Caruso and A. Seifert, “ Inwiefern ist die Professionalisierung in Praxisphasen schulformspezifisch?,” <i>Österreichische Religionspädagogische Forum</i>, vol. 30, no. 1, pp. 239–260, 2022, doi: <a href=\"https://doi.org/10.30:2022.1.14\">10.30:2022.1.14</a>.","chicago":"Caruso, Carina, and Andreas Seifert. “ Inwiefern ist die Professionalisierung in Praxisphasen schulformspezifisch?” <i>Österreichische Religionspädagogische Forum</i> 30, no. 1 (2022): 239–60. <a href=\"https://doi.org/10.30:2022.1.14\">https://doi.org/10.30:2022.1.14</a>.","ama":"Caruso C, Seifert A.  Inwiefern ist die Professionalisierung in Praxisphasen schulformspezifisch? <i>Österreichische Religionspädagogische Forum</i>. 2022;30(1):239-260. doi:<a href=\"https://doi.org/10.30:2022.1.14\">10.30:2022.1.14</a>","bibtex":"@article{Caruso_Seifert_2022, title={ Inwiefern ist die Professionalisierung in Praxisphasen schulformspezifisch?}, volume={30}, DOI={<a href=\"https://doi.org/10.30:2022.1.14\">10.30:2022.1.14</a>}, number={1}, journal={Österreichische Religionspädagogische Forum}, publisher={Universitätsbibliothek Graz}, author={Caruso, Carina and Seifert, Andreas}, year={2022}, pages={239–260} }","short":"C. Caruso, A. Seifert, Österreichische Religionspädagogische Forum 30 (2022) 239–260.","mla":"Caruso, Carina, and Andreas Seifert. “ Inwiefern ist die Professionalisierung in Praxisphasen schulformspezifisch?” <i>Österreichische Religionspädagogische Forum</i>, vol. 30, no. 1, Universitätsbibliothek Graz, 2022, pp. 239–60, doi:<a href=\"https://doi.org/10.30:2022.1.14\">10.30:2022.1.14</a>.","apa":"Caruso, C., &#38; Seifert, A. (2022).  Inwiefern ist die Professionalisierung in Praxisphasen schulformspezifisch? <i>Österreichische Religionspädagogische Forum</i>, <i>30</i>(1), 239–260. <a href=\"https://doi.org/10.30:2022.1.14\">https://doi.org/10.30:2022.1.14</a>"},"publisher":"Universitätsbibliothek Graz","date_updated":"2023-01-06T12:08:14Z","volume":30,"author":[{"first_name":"Carina","full_name":"Caruso, Carina","id":"23123","last_name":"Caruso"},{"first_name":"Andreas","full_name":"Seifert, Andreas","last_name":"Seifert"}],"date_created":"2023-01-03T12:41:20Z","title":" Inwiefern ist die Professionalisierung in Praxisphasen schulformspezifisch?","doi":"10.30:2022.1.14"},{"alternative_title":["Explorative Ergebnisse zur durch die Corona-Pandemie veränderten Ausbildungssituation"],"_id":"35324","series_title":"Berufsbildung, Arbeit und Innovation","user_id":"86519","editor":[{"first_name":"Dietmar ","last_name":"Heisler","full_name":"Heisler, Dietmar "},{"first_name":"Jörg ","last_name":"Maier","full_name":"Maier, Jörg "}],"status":"public","type":"book_chapter","doi":"10.3278/9783763972579","date_updated":"2023-01-06T12:16:11Z","volume":65,"author":[{"last_name":"Bruns","full_name":"Bruns, Marike","first_name":"Marike"},{"first_name":"Carina","last_name":"Caruso","full_name":"Caruso, Carina","id":"23123"},{"full_name":"Ackermann, Luisa","last_name":"Ackermann","first_name":"Luisa"}],"place":"Bielefeld","intvolume":"        65","page":"191–209","citation":{"apa":"Bruns, M., Caruso, C., &#38; Ackermann, L. (2022). Das Belastungserleben von Lehramtsanwärterinnen und -anwärtern im Vorbereitungsdienst. In D. Heisler &#38; J. Maier (Eds.), <i>Berufsausbildung zwischen Hygienemaßnahmen und Lockdown(s). Folgen für die schulische und außerschulische Berufsausbildung in Schule, im Betrieb und bei Bildungsträgern</i> (Vol. 65, pp. 191–209). wbv. <a href=\"https://doi.org/10.3278/9783763972579\">https://doi.org/10.3278/9783763972579</a>","mla":"Bruns, Marike, et al. “Das Belastungserleben von Lehramtsanwärterinnen und -anwärtern im Vorbereitungsdienst.” <i>Berufsausbildung zwischen Hygienemaßnahmen und Lockdown(s). Folgen für die schulische und außerschulische Berufsausbildung in Schule, im Betrieb und bei Bildungsträgern</i>, edited by Dietmar  Heisler and Jörg  Maier, vol. 65, wbv, 2022, pp. 191–209, doi:<a href=\"https://doi.org/10.3278/9783763972579\">10.3278/9783763972579</a>.","short":"M. Bruns, C. Caruso, L. Ackermann, in: D. Heisler, J. Maier (Eds.), Berufsausbildung zwischen Hygienemaßnahmen und Lockdown(s). Folgen für die schulische und außerschulische Berufsausbildung in Schule, im Betrieb und bei Bildungsträgern, wbv, Bielefeld, 2022, pp. 191–209.","bibtex":"@inbook{Bruns_Caruso_Ackermann_2022, place={Bielefeld}, series={Berufsbildung, Arbeit und Innovation}, title={Das Belastungserleben von Lehramtsanwärterinnen und -anwärtern im Vorbereitungsdienst}, volume={65}, DOI={<a href=\"https://doi.org/10.3278/9783763972579\">10.3278/9783763972579</a>}, booktitle={Berufsausbildung zwischen Hygienemaßnahmen und Lockdown(s). Folgen für die schulische und außerschulische Berufsausbildung in Schule, im Betrieb und bei Bildungsträgern}, publisher={wbv}, author={Bruns, Marike and Caruso, Carina and Ackermann, Luisa}, editor={Heisler, Dietmar  and Maier, Jörg }, year={2022}, pages={191–209}, collection={Berufsbildung, Arbeit und Innovation} }","ieee":"M. Bruns, C. Caruso, and L. Ackermann, “Das Belastungserleben von Lehramtsanwärterinnen und -anwärtern im Vorbereitungsdienst,” in <i>Berufsausbildung zwischen Hygienemaßnahmen und Lockdown(s). Folgen für die schulische und außerschulische Berufsausbildung in Schule, im Betrieb und bei Bildungsträgern</i>, vol. 65, D. Heisler and J. Maier, Eds. Bielefeld: wbv, 2022, pp. 191–209.","chicago":"Bruns, Marike, Carina Caruso, and Luisa Ackermann. “Das Belastungserleben von Lehramtsanwärterinnen und -anwärtern im Vorbereitungsdienst.” In <i>Berufsausbildung zwischen Hygienemaßnahmen und Lockdown(s). Folgen für die schulische und außerschulische Berufsausbildung in Schule, im Betrieb und bei Bildungsträgern</i>, edited by Dietmar  Heisler and Jörg  Maier, 65:191–209. Berufsbildung, Arbeit und Innovation. Bielefeld: wbv, 2022. <a href=\"https://doi.org/10.3278/9783763972579\">https://doi.org/10.3278/9783763972579</a>.","ama":"Bruns M, Caruso C, Ackermann L. Das Belastungserleben von Lehramtsanwärterinnen und -anwärtern im Vorbereitungsdienst. In: Heisler D, Maier J, eds. <i>Berufsausbildung zwischen Hygienemaßnahmen und Lockdown(s). Folgen für die schulische und außerschulische Berufsausbildung in Schule, im Betrieb und bei Bildungsträgern</i>. Vol 65. Berufsbildung, Arbeit und Innovation. wbv; 2022:191–209. doi:<a href=\"https://doi.org/10.3278/9783763972579\">10.3278/9783763972579</a>"},"publication_identifier":{"eisbn":["978-3-7639-7257-9"],"isbn":["978-3-7639-7146-6"]},"publication_status":"published","keyword":["Corona-Pandemie","Lehramtsanwärter:innen","Lehrer:innenausbildung","Professionalisierung","Vorbereitungsdienst / corona pandemic","prospective teachers","teacher training","professionalization","preparatory service"],"language":[{"iso":"ger"}],"abstract":[{"text":"Die Ausbildung von Lehrkräften teilt sich in Studium und Vorbereitungsdienst. Während im Studium Wissen grundgelegt wird, dient der Vorbereitungsdienst, der überwiegend in der Schule stattfindet, dem Erwerb praktischer Kompetenzen, was den Rückbezug auf theoretisch fundierte Kenntnisse und den Aufbau erfahrungsbasierten Wissens umfasst. Die Maßnahmen zur Eindämmung der Corona-Pandemie verändern nicht nur den Schulalltag, sondern haben auch Einfluss auf die Kompetenzentwicklung angehender Lehrkräfte im Vorbereitungsdienst, die ihre Berufsausbildung unter veränderten Rahmenbedingungen durchführen müssen. Die aktuellen Rahmenbedingungen können u. a. aufgrund fehlender bzw. eingeschränkter Praxiserfahrungen eine reguläre Ausbildung erschweren, was zu einem erhöhten Belastungsempfinden der angehenden Lehrkräfte beitragen kann. In diesem Beitrag wird Bezug genommen auf Daten einer explorativen Interviewstudie mit Lehramtsanwärterinnen und -anwärtern aus Nordrhein-Westfalen (N = 19), die während der Pandemie im Jahr 2020 ihren Vorbereitungsdienst absolviert haben. Es wird dabei den Fragen nachgegangen, welche Belastungsfaktoren im Zusammenhang mit der Corona-Pandemie während des Vorbereitungsdienstes auftreten können und inwieweit sich angehende Lehrkräfte während ihres Vorbereitungsdienstes vor dem Hintergrund der aktuellen Rahmenbedingungen infolge der Corona-Pandemie als belastet erleben.","lang":"ger"},{"text":"Teacher education is divided into studies and preparatory service. While knowledge is acquired during studies, the preparatory service, which takes place predominantly in schools, serves to acquire practical competencies, which include reference to theoretical knowledge and the development of experience-based knowledge. The measures to contain the corona pandemic not only change everyday school life but also have an impact on the competence development of prospective teachers in preparatory service, who have to carry out their professional training under changed boundary conditions. Among other things, the current boundary conditions can make regular training more difficult due to a lack of or limited practical experience, which then can contribute to an increased feeling of stress among prospective teachers. This article refers to data from an explorative interview study with prospective teachers from North Rhine-Westphalia (N = 19) who completed their preparatory service during the pandemic in the year 2020. It is discussed which stress factors can occur in connection with the corona pandemic during preparatory service and to what extent prospective teachers experience themselves as stressed during their preparatory service against the background of the current boundary conditions as a result of the corona pandemic.","lang":"eng"}],"publication":"Berufsausbildung zwischen Hygienemaßnahmen und Lockdown(s). Folgen für die schulische und außerschulische Berufsausbildung in Schule, im Betrieb und bei Bildungsträgern","title":"Das Belastungserleben von Lehramtsanwärterinnen und -anwärtern im Vorbereitungsdienst","publisher":"wbv","date_created":"2023-01-06T11:31:52Z","year":"2022"},{"status":"public","abstract":[{"text":"Im Zentrum dieses Beitrags stehen Ergebnisse der Messung pädagogischer Kompetenzen Studierender. Dabei werden sowohl das bildungswissenschaftliche Wissen als auch die Entwicklung der Kompe­tenzselbsteinschätzungen in den Bereichen Unterrichten, Erziehen, Beurteilen und Innovieren unter Berücksichtigung individueller Voraussetzungen (Alter, Geschlecht, Abiturnote, Bachelornote, Konfession) betrachtet. Um die Ergeb­nisse hinsichtlich ihrer Bedeutung für die Professionalisierung angehender Lehrkräfte diskutieren zu können, wird, den empirischen Erkenntnissen voranstehend, die Bedeutung von Wissen für berufliches Können herausgearbeitet. Daran anschließend werden Hypothesen hergeleitet, die Anlage der Studie sowie die Testinstrumente vorgestellt, die Ergebnisse präsentiert und diskutiert. Die Ergebnisse zeigen, dass die Abitur- und Bachelornote die Varianz hinsichtlich des pädagogischen Wissens aufklären, sich eine signifikante Entwicklung der Kompetenzselbsteinschätzungen angehender Lehrkräfte feststellen lässt, aber sich angehende Religionslehrkräfte kaum von anderen Studierenden unterscheiden. Die Diskussion nimmt u. a. Rückbezug auf die Denkfiguren zur Entwicklung berufli­chen Könnens und benennt Limitationen, die mit der Studie und Kompetenzmessungen verbunden sind. Daran schließt die Formulierung eines Ausblicks an. Der Beitrag zielt insbesondere darauf, repräsentative Ergebnisse der Kompetenzmessung zu präsentieren und dabei potenzielle Einflussfaktoren auf die studentische Kompetenzent­wicklung zu beleuchten. Ein dadurch angereichertes Konglomerat belastbarer Erkenntnisse zielt darauf, langfristig zur Ableitung lehrerbildungsdidaktischer Überlegungen herangezogen werden zu können, die die studentische Professionalisierung unterstützen.","lang":"ger"},{"text":"This paper focuses on the results of the measurement of pedagogical competences of students. In doing so,  both  the  knowledge  of  the  educational  sciences  and  the  development  of  competence  self-assessments  in  the  fields of teaching, education, assessment andinnovating are taken into account. The study makes use of the following individual requirements: age, sex, Abitur grade, Bachelor grade, Confession. In order to be able to discuss the re-sults regarding their importance for the professionalization of prospective teachers, the importance of knowledge for  professional  skills  is  highlighted,  preceded  by  empirical  findings.  Subsequently,  hypotheses  are  derived,  the  plan  of  the  study  as  well  as  the  test  instruments  are  presented,  the  results  presented  and  discussed.  The  results  show that the Abitur and Bachelor grades clarify the variance in pedagogical knowledge, that there is a significant development in the competence self-assessments of prospective teachers, and that prospective religious teachers are not different from other students. The discussion takes into account, among other things, the ideas for the devel-opment of professional skills and identifies limitations associated with the study. This is followed by the formula-tion of an outlook. The main aim of the paper is to present representative results of the competence measurement and  to  examine  potential  influencing  factors  on  student  competence  development.  A  conglomerate  of  resilient  knowledge enriched by this aims to be used in the long term to derive teacher training didactic considerations that support student professionalization.","lang":"eng"}],"type":"journal_article","publication":"Religionspädagogische Beiträge. Journal for Religion in Education ","language":[{"iso":"ger"}],"keyword":["Bildungswissenschaftliches Wissen","Kompetenzmessung","Kompetenzselbsteinschätzung","Praxissemester","Professionalisierung / competence measurement","competence self-assessment","educational knowledge","internship","professionalization"],"user_id":"86519","_id":"35137","citation":{"apa":"Caruso, C., &#38; Seifert, A. (2022). Pädagogische Kompetenz als Ausgangspunkt beruflichen Könnens!? Ergebnisse der Kompetenzmessung angehender Lehrkräfte unter Berücksichtigung individueller Voraussetzungen. <i>Religionspädagogische Beiträge. Journal for Religion in Education </i>, <i>45</i>(1), 3–15. <a href=\"https://doi.org/10.20377/rpb-101\">https://doi.org/10.20377/rpb-101</a>","bibtex":"@article{Caruso_Seifert_2022, title={Pädagogische Kompetenz als Ausgangspunkt beruflichen Könnens!? Ergebnisse der Kompetenzmessung angehender Lehrkräfte unter Berücksichtigung individueller Voraussetzungen}, volume={45}, DOI={<a href=\"https://doi.org/10.20377/rpb-101\">10.20377/rpb-101</a>}, number={1}, journal={Religionspädagogische Beiträge. Journal for Religion in Education }, publisher={University of Bamberg Press}, author={Caruso, Carina and Seifert, Andreas}, year={2022}, pages={3–15} }","mla":"Caruso, Carina, and Andreas Seifert. “Pädagogische Kompetenz als Ausgangspunkt beruflichen Könnens!? Ergebnisse der Kompetenzmessung angehender Lehrkräfte unter Berücksichtigung individueller Voraussetzungen.” <i>Religionspädagogische Beiträge. Journal for Religion in Education </i>, vol. 45, no. 1, University of Bamberg Press, 2022, pp. 3–15, doi:<a href=\"https://doi.org/10.20377/rpb-101\">10.20377/rpb-101</a>.","short":"C. Caruso, A. Seifert, Religionspädagogische Beiträge. Journal for Religion in Education  45 (2022) 3–15.","ama":"Caruso C, Seifert A. Pädagogische Kompetenz als Ausgangspunkt beruflichen Könnens!? Ergebnisse der Kompetenzmessung angehender Lehrkräfte unter Berücksichtigung individueller Voraussetzungen. <i>Religionspädagogische Beiträge Journal for Religion in Education </i>. 2022;45(1):3-15. doi:<a href=\"https://doi.org/10.20377/rpb-101\">10.20377/rpb-101</a>","ieee":"C. Caruso and A. Seifert, “Pädagogische Kompetenz als Ausgangspunkt beruflichen Könnens!? Ergebnisse der Kompetenzmessung angehender Lehrkräfte unter Berücksichtigung individueller Voraussetzungen,” <i>Religionspädagogische Beiträge. Journal for Religion in Education </i>, vol. 45, no. 1, pp. 3–15, 2022, doi: <a href=\"https://doi.org/10.20377/rpb-101\">10.20377/rpb-101</a>.","chicago":"Caruso, Carina, and Andreas Seifert. “Pädagogische Kompetenz als Ausgangspunkt beruflichen Könnens!? Ergebnisse der Kompetenzmessung angehender Lehrkräfte unter Berücksichtigung individueller Voraussetzungen.” <i>Religionspädagogische Beiträge. Journal for Religion in Education </i> 45, no. 1 (2022): 3–15. <a href=\"https://doi.org/10.20377/rpb-101\">https://doi.org/10.20377/rpb-101</a>."},"intvolume":"        45","page":"3-15","year":"2022","issue":"1","publication_status":"published","publication_identifier":{"issn":["2750 - 3941"]},"doi":"10.20377/rpb-101","title":"Pädagogische Kompetenz als Ausgangspunkt beruflichen Könnens!? Ergebnisse der Kompetenzmessung angehender Lehrkräfte unter Berücksichtigung individueller Voraussetzungen","date_created":"2023-01-03T12:45:09Z","author":[{"full_name":"Caruso, Carina","id":"23123","last_name":"Caruso","first_name":"Carina"},{"first_name":"Andreas","full_name":"Seifert, Andreas","last_name":"Seifert"}],"volume":45,"publisher":"University of Bamberg Press","date_updated":"2023-01-06T12:21:07Z"},{"type":"conference","editor":[{"last_name":"Gill","full_name":"Gill, David","first_name":"David"},{"last_name":"Tuff","full_name":"Tuff, Jim","first_name":"Jim"},{"last_name":"Kennedy","full_name":"Kennedy, Thomas","first_name":"Thomas"},{"first_name":"Shawn","full_name":"Pendergast, Shawn","last_name":"Pendergast"},{"last_name":"Jamil","full_name":"Jamil, Sana","first_name":"Sana"}],"status":"public","_id":"40046","user_id":"71764","series_title":"PATT Proceedings","department":[{"_id":"588"}],"publication_status":"published","publication_identifier":{"unknown":["https://research.edgehill.ac.uk/ws/portalfiles/portal/50821651/patt39_proceedings_june_17_2022.pdf"]},"place":"St. John’s, Newfoundland and Labrador, Canada","citation":{"bibtex":"@inproceedings{Schröer_Tenberge_2022, place={St. John’s, Newfoundland and Labrador, Canada}, series={PATT Proceedings}, title={How to enable pre-service teachers to design technological teaching and learning inclusively? – On the nature and consideration of basic needs in teacher training}, booktitle={PATT39 - PATT on the Edge Technology, Innovation and Education}, author={Schröer, Franz and Tenberge, Claudia}, editor={Gill, David and Tuff, Jim and Kennedy, Thomas and Pendergast, Shawn and Jamil, Sana}, year={2022}, pages={49–57}, collection={PATT Proceedings} }","mla":"Schröer, Franz, and Claudia Tenberge. “How to Enable Pre-Service Teachers to Design Technological Teaching and Learning Inclusively? – On the Nature and Consideration of Basic Needs in Teacher Training.” <i>PATT39 - PATT on the Edge Technology, Innovation and Education</i>, edited by David Gill et al., 2022, pp. 49–57.","short":"F. Schröer, C. Tenberge, in: D. Gill, J. Tuff, T. Kennedy, S. Pendergast, S. Jamil (Eds.), PATT39 - PATT on the Edge Technology, Innovation and Education, St. John’s, Newfoundland and Labrador, Canada, 2022, pp. 49–57.","apa":"Schröer, F., &#38; Tenberge, C. (2022). How to enable pre-service teachers to design technological teaching and learning inclusively? – On the nature and consideration of basic needs in teacher training. In D. Gill, J. Tuff, T. Kennedy, S. Pendergast, &#38; S. Jamil (Eds.), <i>PATT39 - PATT on the Edge Technology, Innovation and Education</i> (pp. 49–57).","chicago":"Schröer, Franz, and Claudia Tenberge. “How to Enable Pre-Service Teachers to Design Technological Teaching and Learning Inclusively? – On the Nature and Consideration of Basic Needs in Teacher Training.” In <i>PATT39 - PATT on the Edge Technology, Innovation and Education</i>, edited by David Gill, Jim Tuff, Thomas Kennedy, Shawn Pendergast, and Sana Jamil, 49–57. PATT Proceedings. St. John’s, Newfoundland and Labrador, Canada, 2022.","ieee":"F. Schröer and C. Tenberge, “How to enable pre-service teachers to design technological teaching and learning inclusively? – On the nature and consideration of basic needs in teacher training,” in <i>PATT39 - PATT on the Edge Technology, Innovation and Education</i>, St. John’s, Newfoundland and Labrador, Canada, 2022, pp. 49–57.","ama":"Schröer F, Tenberge C. How to enable pre-service teachers to design technological teaching and learning inclusively? – On the nature and consideration of basic needs in teacher training. In: Gill D, Tuff J, Kennedy T, Pendergast S, Jamil S, eds. <i>PATT39 - PATT on the Edge Technology, Innovation and Education</i>. PATT Proceedings. ; 2022:49-57."},"page":"49-57","date_updated":"2023-01-25T15:13:57Z","author":[{"id":"71764","full_name":"Schröer, Franz","last_name":"Schröer","first_name":"Franz"},{"first_name":"Claudia","id":"67302","full_name":"Tenberge, Claudia","last_name":"Tenberge"}],"main_file_link":[{"url":"https://research.edgehill.ac.uk/ws/portalfiles/portal/50821651/patt39_proceedings_june_17_2022.pdf"}],"conference":{"location":"St. John’s, Newfoundland and Labrador, Canada","end_date":"2022-06-24","start_date":"2022-06-21","name":"PATT39 - PATT on the Edge Technology, Innovation and Education"},"publication":"PATT39 - PATT on the Edge Technology, Innovation and Education","abstract":[{"text":"Theoretical approaches to the transformation towards an inclusive educational system in Germany mostly agree on the involvement of developmental tasks in subject related research (Hinz, 2011). The common understanding of inclusion as a process geared towards equal participation of all children (Booth, 2012) requires a reflexive questioning of established values, attitudes and practices in order to develop inclusive subject related research, teacher training and teaching and learning (Pech & Schomaker, 2013). Among other things, this results in consequences for the design of pre- service teacher training. To a large extent, teacher education is driven by the promotion of central competencies, interests and self-efficacy (Baumert & Kunter, 2011). It aims towards the development and realisation of inclusive interdisciplinary science and social studies (‘Sachunterricht’) in primary education (Moser, 2018). In conjunction with largely acknowledged constructivist approaches to teaching and learning (Möller, 2001), the development of personality, the consideration of basic needs (Deci & Ryan, 1993) and promotion of individual potentials are repeatedly fundamentally represented in subject related and pedagogical considerations (Feuser, 1989; GDSU, 2013). Therefore, the aforementioned constructivist approach is connected to several certain key paradigms for teaching and learning processes (e.g., Vygotskij, 1978; Posner et al., 1982; van de Pol et al., 2010). In this regard, the nature of primary school students’ basic needs have empirically not been sufficiently studied yet. Theoretical frameworks from motivational psychology (Deci & Ryan, 1993) do not explicitly address how individual needs differ and how the diversity of needs can be included in joint-learning, multi-perspective technology education classes. The research project the present paper is part of aims to develop a research-based concept for the professionalisation of pre-service teachers in a seminar course. Therefore, the promotion of the pre- service teachers’ interests and self-efficacy expectations have been assessed in a pre-post research design with a control group visiting another course not related to technology education and inclusion. The present paper describes and discusses first results of the project and will give an outlook on subsequent developmental tasks.","lang":"eng"}],"keyword":["Inclusion","basic needs","pre-service teacher training","interest","self-efficacy"],"language":[{"iso":"eng"}],"quality_controlled":"1","year":"2022","date_created":"2023-01-25T15:13:45Z","title":"How to enable pre-service teachers to design technological teaching and learning inclusively? – On the nature and consideration of basic needs in teacher training"},{"publication":"European Journal of Information Systems","type":"journal_article","status":"public","_id":"36083","department":[{"_id":"195"}],"user_id":"14931","keyword":["Library and Information Sciences","Information Systems","Self-Tracking","User Behaviour","Discontinuance"],"language":[{"iso":"eng"}],"publication_identifier":{"issn":["0960-085X","1476-9344"]},"publication_status":"published","year":"2022","page":"1-21","citation":{"apa":"Constantiou, I., Mukkamala, A., Sjöklint, M., &#38; Trier, M. (2022). Engaging with self-tracking applications: how do users respond to their performance data? <i>European Journal of Information Systems</i>, 1–21. <a href=\"https://doi.org/10.1080/0960085x.2022.2081096\">https://doi.org/10.1080/0960085x.2022.2081096</a>","bibtex":"@article{Constantiou_Mukkamala_Sjöklint_Trier_2022, title={Engaging with self-tracking applications: how do users respond to their performance data?}, DOI={<a href=\"https://doi.org/10.1080/0960085x.2022.2081096\">10.1080/0960085x.2022.2081096</a>}, journal={European Journal of Information Systems}, publisher={Informa UK Limited}, author={Constantiou, Ioanna and Mukkamala, Alivelu and Sjöklint, Mimmi and Trier, Matthias}, year={2022}, pages={1–21} }","short":"I. Constantiou, A. Mukkamala, M. Sjöklint, M. Trier, European Journal of Information Systems (2022) 1–21.","mla":"Constantiou, Ioanna, et al. “Engaging with Self-Tracking Applications: How Do Users Respond to Their Performance Data?” <i>European Journal of Information Systems</i>, Informa UK Limited, 2022, pp. 1–21, doi:<a href=\"https://doi.org/10.1080/0960085x.2022.2081096\">10.1080/0960085x.2022.2081096</a>.","chicago":"Constantiou, Ioanna, Alivelu Mukkamala, Mimmi Sjöklint, and Matthias Trier. “Engaging with Self-Tracking Applications: How Do Users Respond to Their Performance Data?” <i>European Journal of Information Systems</i>, 2022, 1–21. <a href=\"https://doi.org/10.1080/0960085x.2022.2081096\">https://doi.org/10.1080/0960085x.2022.2081096</a>.","ieee":"I. Constantiou, A. Mukkamala, M. Sjöklint, and M. Trier, “Engaging with self-tracking applications: how do users respond to their performance data?,” <i>European Journal of Information Systems</i>, pp. 1–21, 2022, doi: <a href=\"https://doi.org/10.1080/0960085x.2022.2081096\">10.1080/0960085x.2022.2081096</a>.","ama":"Constantiou I, Mukkamala A, Sjöklint M, Trier M. Engaging with self-tracking applications: how do users respond to their performance data? <i>European Journal of Information Systems</i>. Published online 2022:1-21. doi:<a href=\"https://doi.org/10.1080/0960085x.2022.2081096\">10.1080/0960085x.2022.2081096</a>"},"publisher":"Informa UK Limited","date_updated":"2023-01-29T23:05:59Z","date_created":"2023-01-11T12:13:54Z","author":[{"full_name":"Constantiou, Ioanna","last_name":"Constantiou","first_name":"Ioanna"},{"last_name":"Mukkamala","full_name":"Mukkamala, Alivelu","first_name":"Alivelu"},{"first_name":"Mimmi","full_name":"Sjöklint, Mimmi","last_name":"Sjöklint"},{"first_name":"Matthias","last_name":"Trier","full_name":"Trier, Matthias","id":"72744"}],"title":"Engaging with self-tracking applications: how do users respond to their performance data?","doi":"10.1080/0960085x.2022.2081096"},{"status":"public","type":"journal_article","file_date_updated":"2022-12-20T14:23:57Z","article_type":"original","user_id":"33185","department":[{"_id":"574"}],"_id":"34614","citation":{"apa":"Schloots, F. M. (2022). ‚Understand what’s happening within‘. Selbstkontrolle mit Personenwaage, Wearable und habit tracker. <i>ffk Journal</i>, <i>6</i>(7), 74–91. <a href=\"https://doi.org/10.25969/MEDIAREP/18238\">https://doi.org/10.25969/MEDIAREP/18238</a>","short":"F.M. Schloots, ffk Journal 6 (2022) 74–91.","mla":"Schloots, Franziska Margarete. “‚Understand what’s happening within‘. Selbstkontrolle mit Personenwaage, Wearable und habit tracker.” <i>ffk Journal</i>, vol. 6, no. 7, 2022, pp. 74–91, doi:<a href=\"https://doi.org/10.25969/MEDIAREP/18238\">10.25969/MEDIAREP/18238</a>.","bibtex":"@article{Schloots_2022, title={‚Understand what’s happening within‘. Selbstkontrolle mit Personenwaage, Wearable und habit tracker}, volume={6}, DOI={<a href=\"https://doi.org/10.25969/MEDIAREP/18238\">10.25969/MEDIAREP/18238</a>}, number={7}, journal={ffk Journal}, author={Schloots, Franziska Margarete}, year={2022}, pages={74–91} }","ama":"Schloots FM. ‚Understand what’s happening within‘. Selbstkontrolle mit Personenwaage, Wearable und habit tracker. <i>ffk Journal</i>. 2022;6(7):74-91. doi:<a href=\"https://doi.org/10.25969/MEDIAREP/18238\">10.25969/MEDIAREP/18238</a>","ieee":"F. M. Schloots, “‚Understand what’s happening within‘. Selbstkontrolle mit Personenwaage, Wearable und habit tracker,” <i>ffk Journal</i>, vol. 6, no. 7, pp. 74–91, 2022, doi: <a href=\"https://doi.org/10.25969/MEDIAREP/18238\">10.25969/MEDIAREP/18238</a>.","chicago":"Schloots, Franziska Margarete. “‚Understand what’s happening within‘. Selbstkontrolle mit Personenwaage, Wearable und habit tracker.” <i>ffk Journal</i> 6, no. 7 (2022): 74–91. <a href=\"https://doi.org/10.25969/MEDIAREP/18238\">https://doi.org/10.25969/MEDIAREP/18238</a>."},"intvolume":"         6","page":"74-91","publication_status":"published","has_accepted_license":"1","doi":"10.25969/MEDIAREP/18238","author":[{"first_name":"Franziska Margarete","last_name":"Schloots","orcid":"0009-0008-9673-2615","full_name":"Schloots, Franziska Margarete","id":"33185"}],"volume":6,"date_updated":"2024-11-22T10:09:55Z","file":[{"relation":"main_file","success":1,"content_type":"application/pdf","file_id":"34616","file_name":"ffk_journal_07_74-91_Schloots_Selbstkontrolle_.pdf","access_level":"closed","file_size":530069,"creator":"fms","date_created":"2022-12-20T14:23:57Z","date_updated":"2022-12-20T14:23:57Z"}],"license":"https://creativecommons.org/licenses/by-sa/4.0/","abstract":[{"lang":"ger","text":"Mit steigenden Optimierungsanforderungen an das Individuum wächst auch das indivi-\r\nduelle Bedürfnis nach Kontrolle. Dieses kann u. a. durch self tracking-Technologien erfüllt werden.\r\nAnhand von drei Fallbeispielen – der Personenwaage, dem Wearable und dem habit tracker – zeigt\r\ndieser Aufsatz, wie sich medienbasierte Selbsttechnologien im historischen Verlauf intensiviert und\r\nstärker in den Alltag integriert haben. Ein besonderer Fokus liegt dabei auf der Ambivalenz dieser\r\nMedien: Ermöglichen sie auf der einen Seite zwar eine Selbstkontrolle und stellen so potenziell sta-\r\nbilisierende Ressourcen für das Individuum dar, schaffen sie auf der anderen Seite auch neue\r\nAnforderungen, die es zu erfüllen gilt."}],"publication":"ffk Journal","language":[{"iso":"ger"}],"ddc":["040"],"keyword":["self-tracking","Selbsttechnologien","Wearable","Bullet Journal","Personenwaage","Selbstvermessung"],"year":"2022","issue":"7","title":"‚Understand what’s happening within‘. Selbstkontrolle mit Personenwaage, Wearable und habit tracker","date_created":"2022-12-20T14:20:56Z"},{"title":"Distributed Online Service Coordination Using Deep Reinforcement Learning","date_created":"2021-03-18T17:15:47Z","publisher":"IEEE","year":"2021","language":[{"iso":"eng"}],"ddc":["000"],"keyword":["network management","service management","coordination","reinforcement learning","distributed"],"file":[{"relation":"main_file","content_type":"application/pdf","file_size":606321,"title":"Distributed Online Service Coordination Using Deep Reinforcement Learning","file_id":"21544","access_level":"open_access","file_name":"public_author_version.pdf","date_updated":"2021-03-18T17:12:56Z","date_created":"2021-03-18T17:12:56Z","creator":"stschn"}],"abstract":[{"text":"Services often consist of multiple chained components such as microservices in a service mesh, or machine learning functions in a pipeline. Providing these services requires online coordination including scaling the service, placing instance of all components in the network, scheduling traffic to these instances, and routing traffic through the network. Optimized service coordination is still a hard problem due to many influencing factors such as rapidly arriving user demands and limited node and link capacity. Existing approaches to solve the problem are often built on rigid models and assumptions, tailored to specific scenarios. If the scenario changes and the assumptions no longer hold, they easily break and require manual adjustments by experts. Novel self-learning approaches using deep reinforcement learning (DRL) are promising but still have limitations as they only address simplified versions of the problem and are typically centralized and thus do not scale to practical large-scale networks.\r\n\r\nTo address these issues, we propose a distributed self-learning service coordination approach using DRL. After centralized training, we deploy a distributed DRL agent at each node in the network, making fast coordination decisions locally in parallel with the other nodes. Each agent only observes its direct neighbors and does not need global knowledge. Hence, our approach scales independently from the size of the network. In our extensive evaluation using real-world network topologies and traffic traces, we show that our proposed approach outperforms a state-of-the-art conventional heuristic as well as a centralized DRL approach (60% higher throughput on average) while requiring less time per online decision (1 ms).","lang":"eng"}],"publication":"IEEE International Conference on Distributed Computing Systems (ICDCS)","conference":{"name":"IEEE International Conference on Distributed Computing Systems (ICDCS)","location":"Washington, DC, USA"},"author":[{"first_name":"Stefan Balthasar","last_name":"Schneider","orcid":"0000-0001-8210-4011","full_name":"Schneider, Stefan Balthasar","id":"35343"},{"last_name":"Qarawlus","full_name":"Qarawlus, Haydar","first_name":"Haydar"},{"last_name":"Karl","id":"126","full_name":"Karl, Holger","first_name":"Holger"}],"date_updated":"2022-01-06T06:55:04Z","oa":"1","citation":{"ama":"Schneider SB, Qarawlus H, Karl H. Distributed Online Service Coordination Using Deep Reinforcement Learning. In: <i>IEEE International Conference on Distributed Computing Systems (ICDCS)</i>. IEEE; 2021.","ieee":"S. B. Schneider, H. Qarawlus, and H. Karl, “Distributed Online Service Coordination Using Deep Reinforcement Learning,” in <i>IEEE International Conference on Distributed Computing Systems (ICDCS)</i>, Washington, DC, USA, 2021.","chicago":"Schneider, Stefan Balthasar, Haydar Qarawlus, and Holger Karl. “Distributed Online Service Coordination Using Deep Reinforcement Learning.” In <i>IEEE International Conference on Distributed Computing Systems (ICDCS)</i>. IEEE, 2021.","apa":"Schneider, S. B., Qarawlus, H., &#38; Karl, H. (2021). Distributed Online Service Coordination Using Deep Reinforcement Learning. In <i>IEEE International Conference on Distributed Computing Systems (ICDCS)</i>. Washington, DC, USA: IEEE.","short":"S.B. Schneider, H. Qarawlus, H. Karl, in: IEEE International Conference on Distributed Computing Systems (ICDCS), IEEE, 2021.","mla":"Schneider, Stefan Balthasar, et al. “Distributed Online Service Coordination Using Deep Reinforcement Learning.” <i>IEEE International Conference on Distributed Computing Systems (ICDCS)</i>, IEEE, 2021.","bibtex":"@inproceedings{Schneider_Qarawlus_Karl_2021, title={Distributed Online Service Coordination Using Deep Reinforcement Learning}, booktitle={IEEE International Conference on Distributed Computing Systems (ICDCS)}, publisher={IEEE}, author={Schneider, Stefan Balthasar and Qarawlus, Haydar and Karl, Holger}, year={2021} }"},"related_material":{"link":[{"relation":"software","url":"https://github.com/ RealVNF/distributed-drl-coordination"}]},"has_accepted_license":"1","file_date_updated":"2021-03-18T17:12:56Z","user_id":"35343","department":[{"_id":"75"}],"project":[{"_id":"1","name":"SFB 901"},{"name":"SFB 901 - Project Area C","_id":"4"},{"name":"SFB 901 - Subproject C4","_id":"16"}],"_id":"21543","status":"public","type":"conference"},{"has_accepted_license":"1","citation":{"apa":"Schneider, S. B., Jürgens, M., &#38; Karl, H. (2021). Divide and Conquer: Hierarchical Network and Service Coordination. In <i>IFIP/IEEE International Symposium on Integrated Network Management (IM)</i>. Bordeaux, France: IFIP/IEEE.","mla":"Schneider, Stefan Balthasar, et al. “Divide and Conquer: Hierarchical Network and Service Coordination.” <i>IFIP/IEEE International Symposium on Integrated Network Management (IM)</i>, IFIP/IEEE, 2021.","bibtex":"@inproceedings{Schneider_Jürgens_Karl_2021, title={Divide and Conquer: Hierarchical Network and Service Coordination}, booktitle={IFIP/IEEE International Symposium on Integrated Network Management (IM)}, publisher={IFIP/IEEE}, author={Schneider, Stefan Balthasar and Jürgens, Mirko and Karl, Holger}, year={2021} }","short":"S.B. Schneider, M. Jürgens, H. Karl, in: IFIP/IEEE International Symposium on Integrated Network Management (IM), IFIP/IEEE, 2021.","ama":"Schneider SB, Jürgens M, Karl H. Divide and Conquer: Hierarchical Network and Service Coordination. In: <i>IFIP/IEEE International Symposium on Integrated Network Management (IM)</i>. IFIP/IEEE; 2021.","ieee":"S. B. Schneider, M. Jürgens, and H. Karl, “Divide and Conquer: Hierarchical Network and Service Coordination,” in <i>IFIP/IEEE International Symposium on Integrated Network Management (IM)</i>, Bordeaux, France, 2021.","chicago":"Schneider, Stefan Balthasar, Mirko Jürgens, and Holger Karl. “Divide and Conquer: Hierarchical Network and Service Coordination.” In <i>IFIP/IEEE International Symposium on Integrated Network Management (IM)</i>. IFIP/IEEE, 2021."},"author":[{"first_name":"Stefan Balthasar","id":"35343","full_name":"Schneider, Stefan Balthasar","orcid":"0000-0001-8210-4011","last_name":"Schneider"},{"first_name":"Mirko","full_name":"Jürgens, Mirko","last_name":"Jürgens"},{"full_name":"Karl, Holger","id":"126","last_name":"Karl","first_name":"Holger"}],"oa":"1","date_updated":"2022-01-06T06:54:32Z","conference":{"name":"IFIP/IEEE International Symposium on Integrated Network Management (IM)","location":"Bordeaux, France"},"type":"conference","status":"public","user_id":"35343","department":[{"_id":"75"}],"project":[{"name":"SFB 901","_id":"1"},{"name":"SFB 901 - Project Area C","_id":"4"},{"_id":"16","name":"SFB 901 - Subproject C4"}],"_id":"20693","file_date_updated":"2020-12-11T08:37:37Z","quality_controlled":"1","year":"2021","date_created":"2020-12-11T08:39:47Z","publisher":"IFIP/IEEE","title":"Divide and Conquer: Hierarchical Network and Service Coordination","publication":"IFIP/IEEE International Symposium on Integrated Network Management (IM)","file":[{"content_type":"application/pdf","relation":"main_file","date_created":"2020-12-11T08:37:37Z","creator":"stschn","date_updated":"2020-12-11T08:37:37Z","file_id":"20694","access_level":"open_access","file_name":"preprint_with_header.pdf","file_size":7979772,"title":"Divide and Conquer: Hierarchical Network and Service Coordination"}],"abstract":[{"text":"In practical, large-scale networks, services are requested\r\nby users across the globe, e.g., for video streaming.\r\nServices consist of multiple interconnected components such as\r\nmicroservices in a service mesh. Coordinating these services\r\nrequires scaling them according to continuously changing user\r\ndemand, deploying instances at the edge close to their users,\r\nand routing traffic efficiently between users and connected instances.\r\nNetwork and service coordination is commonly addressed\r\nthrough centralized approaches, where a single coordinator\r\nknows everything and coordinates the entire network globally.\r\nWhile such centralized approaches can reach global optima, they\r\ndo not scale to large, realistic networks. In contrast, distributed\r\napproaches scale well, but sacrifice solution quality due to their\r\nlimited scope of knowledge and coordination decisions.\r\n\r\nTo this end, we propose a hierarchical coordination approach\r\nthat combines the good solution quality of centralized approaches\r\nwith the scalability of distributed approaches. In doing so, we divide\r\nthe network into multiple hierarchical domains and optimize\r\ncoordination in a top-down manner. We compare our hierarchical\r\nwith a centralized approach in an extensive evaluation on a real-world\r\nnetwork topology. Our results indicate that hierarchical\r\ncoordination can find close-to-optimal solutions in a fraction of\r\nthe runtime of centralized approaches.","lang":"eng"}],"language":[{"iso":"eng"}],"ddc":["006"],"keyword":["network management","service management","coordination","hierarchical","scalability","nfv"]},{"status":"public","file":[{"relation":"main_file","content_type":"application/pdf","file_name":"ris-accepted-version.pdf","file_id":"21809","access_level":"open_access","file_size":4172270,"description":"Author version of the accepted paper","creator":"stschn","date_created":"2021-04-27T08:01:26Z","date_updated":"2021-04-27T08:01:26Z"}],"abstract":[{"text":"Modern services consist of interconnected components,e.g., microservices in a service mesh or machine learning functions in a pipeline. These services can scale and run across multiple network nodes on demand. To process incoming traffic, service components have to be instantiated and traffic assigned to these instances, taking capacities, changing demands, and Quality of Service (QoS) requirements into account. This challenge is usually solved with custom approaches designed by experts. While this typically works well for the considered scenario, the models often rely on unrealistic assumptions or on knowledge that is not available in practice (e.g., a priori knowledge).\r\n\r\nWe propose DeepCoord, a novel deep reinforcement learning approach that learns how to best coordinate services and is geared towards realistic assumptions. It interacts with the network and relies on available, possibly delayed monitoring information. Rather than defining a complex model or an algorithm on how to achieve an objective, our model-free approach adapts to various objectives and traffic patterns. An agent is trained offline without expert knowledge and then applied online with minimal overhead. Compared to a state-of-the-art heuristic, DeepCoord significantly improves flow throughput (up to 76%) and overall network utility (more than 2x) on realworld network topologies and traffic traces. It also supports optimizing multiple, possibly competing objectives, learns to respect QoS requirements, generalizes to scenarios with unseen, stochastic traffic, and scales to large real-world networks. For reproducibility and reuse, our code is publicly available.","lang":"eng"}],"publication":"Transactions on Network and Service Management","type":"journal_article","language":[{"iso":"eng"}],"file_date_updated":"2021-04-27T08:01:26Z","keyword":["network management","service management","coordination","reinforcement learning","self-learning","self-adaptation","multi-objective"],"ddc":["000"],"article_type":"original","department":[{"_id":"75"}],"user_id":"35343","_id":"21808","project":[{"_id":"1","name":"SFB 901"},{"name":"SFB 901 - Project Area C","_id":"4"},{"name":"SFB 901 - Subproject C4","_id":"16"}],"citation":{"ama":"Schneider SB, Khalili R, Manzoor A, et al. Self-Learning Multi-Objective Service Coordination Using Deep Reinforcement Learning. <i>Transactions on Network and Service Management</i>. 2021. doi:<a href=\"https://doi.org/10.1109/TNSM.2021.3076503\">10.1109/TNSM.2021.3076503</a>","chicago":"Schneider, Stefan Balthasar, Ramin Khalili, Adnan Manzoor, Haydar Qarawlus, Rafael Schellenberg, Holger Karl, and Artur Hecker. “Self-Learning Multi-Objective Service Coordination Using Deep Reinforcement Learning.” <i>Transactions on Network and Service Management</i>, 2021. <a href=\"https://doi.org/10.1109/TNSM.2021.3076503\">https://doi.org/10.1109/TNSM.2021.3076503</a>.","ieee":"S. B. Schneider <i>et al.</i>, “Self-Learning Multi-Objective Service Coordination Using Deep Reinforcement Learning,” <i>Transactions on Network and Service Management</i>, 2021.","apa":"Schneider, S. B., Khalili, R., Manzoor, A., Qarawlus, H., Schellenberg, R., Karl, H., &#38; Hecker, A. (2021). Self-Learning Multi-Objective Service Coordination Using Deep Reinforcement Learning. <i>Transactions on Network and Service Management</i>. <a href=\"https://doi.org/10.1109/TNSM.2021.3076503\">https://doi.org/10.1109/TNSM.2021.3076503</a>","mla":"Schneider, Stefan Balthasar, et al. “Self-Learning Multi-Objective Service Coordination Using Deep Reinforcement Learning.” <i>Transactions on Network and Service Management</i>, IEEE, 2021, doi:<a href=\"https://doi.org/10.1109/TNSM.2021.3076503\">10.1109/TNSM.2021.3076503</a>.","bibtex":"@article{Schneider_Khalili_Manzoor_Qarawlus_Schellenberg_Karl_Hecker_2021, title={Self-Learning Multi-Objective Service Coordination Using Deep Reinforcement Learning}, DOI={<a href=\"https://doi.org/10.1109/TNSM.2021.3076503\">10.1109/TNSM.2021.3076503</a>}, journal={Transactions on Network and Service Management}, publisher={IEEE}, author={Schneider, Stefan Balthasar and Khalili, Ramin and Manzoor, Adnan and Qarawlus, Haydar and Schellenberg, Rafael and Karl, Holger and Hecker, Artur}, year={2021} }","short":"S.B. Schneider, R. Khalili, A. Manzoor, H. Qarawlus, R. Schellenberg, H. Karl, A. Hecker, Transactions on Network and Service Management (2021)."},"year":"2021","has_accepted_license":"1","doi":"10.1109/TNSM.2021.3076503","title":"Self-Learning Multi-Objective Service Coordination Using Deep Reinforcement Learning","date_created":"2021-04-27T08:04:16Z","author":[{"first_name":"Stefan Balthasar","id":"35343","full_name":"Schneider, Stefan Balthasar","orcid":"0000-0001-8210-4011","last_name":"Schneider"},{"first_name":"Ramin","last_name":"Khalili","full_name":"Khalili, Ramin"},{"last_name":"Manzoor","full_name":"Manzoor, Adnan","first_name":"Adnan"},{"first_name":"Haydar","last_name":"Qarawlus","full_name":"Qarawlus, Haydar"},{"first_name":"Rafael","last_name":"Schellenberg","full_name":"Schellenberg, Rafael"},{"last_name":"Karl","full_name":"Karl, Holger","id":"126","first_name":"Holger"},{"first_name":"Artur","full_name":"Hecker, Artur","last_name":"Hecker"}],"date_updated":"2022-01-06T06:55:15Z","oa":"1","publisher":"IEEE"},{"has_accepted_license":"1","citation":{"ama":"Schneider SB, Karl H, Khalili R, Hecker A. <i>DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning</i>.; 2021.","ieee":"S. B. Schneider, H. Karl, R. Khalili, and A. Hecker, <i>DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning</i>. 2021.","chicago":"Schneider, Stefan Balthasar, Holger Karl, Ramin Khalili, and Artur Hecker. <i>DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning</i>, 2021.","short":"S.B. Schneider, H. Karl, R. Khalili, A. Hecker, DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning, 2021.","bibtex":"@book{Schneider_Karl_Khalili_Hecker_2021, title={DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning}, author={Schneider, Stefan Balthasar and Karl, Holger and Khalili, Ramin and Hecker, Artur}, year={2021} }","mla":"Schneider, Stefan Balthasar, et al. <i>DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning</i>. 2021.","apa":"Schneider, S. B., Karl, H., Khalili, R., &#38; Hecker, A. (2021). <i>DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning</i>."},"year":"2021","author":[{"first_name":"Stefan Balthasar","last_name":"Schneider","orcid":"0000-0001-8210-4011","full_name":"Schneider, Stefan Balthasar","id":"35343"},{"first_name":"Holger","last_name":"Karl","id":"126","full_name":"Karl, Holger"},{"full_name":"Khalili, Ramin","last_name":"Khalili","first_name":"Ramin"},{"first_name":"Artur","last_name":"Hecker","full_name":"Hecker, Artur"}],"date_created":"2022-10-20T16:44:19Z","oa":"1","date_updated":"2022-11-18T09:59:27Z","title":"DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning","type":"working_paper","file":[{"content_type":"application/pdf","relation":"main_file","date_updated":"2022-10-20T16:41:10Z","date_created":"2022-10-20T16:41:10Z","creator":"stschn","file_size":2521656,"file_name":"preprint.pdf","access_level":"open_access","file_id":"33855"}],"status":"public","abstract":[{"text":"Macrodiversity is a key technique to increase the capacity of mobile networks. It can be realized using coordinated multipoint (CoMP), simultaneously connecting users to multiple overlapping cells. Selecting which users to serve by how many and which cells is NP-hard but needs to happen continuously in real time as users move and channel state changes. Existing approaches often require strict assumptions about or perfect knowledge of the underlying radio system, its resource allocation scheme, or user movements, none of which is readily available in practice.\r\n\r\nInstead, we propose three novel self-learning and self-adapting approaches using model-free deep reinforcement learning (DRL): DeepCoMP, DD-CoMP, and D3-CoMP. DeepCoMP leverages central observations and control of all users to select cells almost optimally. DD-CoMP and D3-CoMP use multi-agent DRL, which allows distributed, robust, and highly scalable coordination. All three approaches learn from experience and self-adapt to varying scenarios, reaching 2x higher Quality of Experience than other approaches. They have very few built-in assumptions and do not need prior system knowledge, making them more robust to change and better applicable in practice than existing approaches.","lang":"eng"}],"user_id":"477","department":[{"_id":"75"}],"project":[{"_id":"4","name":"SFB 901 - C: SFB 901 - Project Area C"},{"name":"SFB 901 - C4: SFB 901 - Subproject C4","_id":"16"},{"_id":"1","name":"SFB 901: SFB 901"}],"_id":"33854","language":[{"iso":"eng"}],"file_date_updated":"2022-10-20T16:41:10Z","ddc":["004"],"keyword":["mobility management","coordinated multipoint","CoMP","cell selection","resource management","reinforcement learning","multi agent","MARL","self-learning","self-adaptation","QoE"]},{"publication":"Journal of Service Management","abstract":[{"text":"Purpose\r\nThe purpose of this paper is to identify strategic options and challenges that arise when an industrial firm moves from providing smart service toward providing a platform.\r\n\r\nDesign/methodology/approach\r\nThis conceptual study takes on a multidisciplinary research perspective that integrates concepts, theories and insights from service management and marketing, information systems and platform economics.\r\n\r\nFindings\r\nThe paper outlines three platform types – smart data platform, smart product platform and matching platform – as strategic options for firms that wish to evolve from smart service providers to platform providers.\r\n\r\nResearch limitations/implications\r\nInvestigating smart service platforms calls for launching interdisciplinary research initiatives. Promising research avenues are outlined to span boundaries that separate different research disciplines today.\r\n\r\nPractical implications\r\nManaging a successful transition from providing smart service toward providing a platform requires making significant investments in IT, platform-related capabilities and skills, as well as implement new approaches toward relationship management and brand-building.\r\n\r\nOriginality/value\r\nThe findings described in this paper are valuable to researchers in multiple disciplines seeking to develop and to justify theory related to platforms in industrial scenarios.","lang":"eng"}],"ddc":["380"],"keyword":["Smart service","Platform","Interdisciplinary research","Manufacturing company","Smart service provider","Platform economics","Information systems","Multi-sided markets","Business-to-business (B2B) markets"],"language":[{"iso":"eng"}],"quality_controlled":"1","issue":"4","year":"2021","publisher":"Emerald Insight","date_created":"2020-08-12T12:12:36Z","title":"Transforming into a Platform Provider: Strategic Options for Industrial Smart Service Providers","type":"journal_article","status":"public","project":[{"grant_number":"160364472","name":"SFB 901","_id":"1"},{"name":"SFB 901 - Project Area C","_id":"4"},{"_id":"17","name":"SFB 901 - Subproject C5"}],"_id":"17860","user_id":"59677","department":[{"_id":"276"},{"_id":"181"}],"article_type":"original","publication_status":"published","publication_identifier":{"issn":["507-532"]},"citation":{"ama":"Beverungen D, Kundisch D, Wünderlich N. Transforming into a Platform Provider: Strategic Options for Industrial Smart Service Providers. <i>Journal of Service Management</i>. 2021;32(4):507-532. doi:<a href=\"https://doi.org/10.1108/JOSM-03-2020-0066\">10.1108/JOSM-03-2020-0066</a>","chicago":"Beverungen, Daniel, Dennis Kundisch, and Nancy Wünderlich. “Transforming into a Platform Provider: Strategic Options for Industrial Smart Service Providers.” <i>Journal of Service Management</i> 32, no. 4 (2021): 507–32. <a href=\"https://doi.org/10.1108/JOSM-03-2020-0066\">https://doi.org/10.1108/JOSM-03-2020-0066</a>.","ieee":"D. Beverungen, D. Kundisch, and N. Wünderlich, “Transforming into a Platform Provider: Strategic Options for Industrial Smart Service Providers,” <i>Journal of Service Management</i>, vol. 32, no. 4, pp. 507–532, 2021, doi: <a href=\"https://doi.org/10.1108/JOSM-03-2020-0066\">10.1108/JOSM-03-2020-0066</a>.","apa":"Beverungen, D., Kundisch, D., &#38; Wünderlich, N. (2021). Transforming into a Platform Provider: Strategic Options for Industrial Smart Service Providers. <i>Journal of Service Management</i>, <i>32</i>(4), 507–532. <a href=\"https://doi.org/10.1108/JOSM-03-2020-0066\">https://doi.org/10.1108/JOSM-03-2020-0066</a>","mla":"Beverungen, Daniel, et al. “Transforming into a Platform Provider: Strategic Options for Industrial Smart Service Providers.” <i>Journal of Service Management</i>, vol. 32, no. 4, Emerald Insight, 2021, pp. 507–32, doi:<a href=\"https://doi.org/10.1108/JOSM-03-2020-0066\">10.1108/JOSM-03-2020-0066</a>.","bibtex":"@article{Beverungen_Kundisch_Wünderlich_2021, title={Transforming into a Platform Provider: Strategic Options for Industrial Smart Service Providers}, volume={32}, DOI={<a href=\"https://doi.org/10.1108/JOSM-03-2020-0066\">10.1108/JOSM-03-2020-0066</a>}, number={4}, journal={Journal of Service Management}, publisher={Emerald Insight}, author={Beverungen, Daniel and Kundisch, Dennis and Wünderlich, Nancy}, year={2021}, pages={507–532} }","short":"D. Beverungen, D. Kundisch, N. Wünderlich, Journal of Service Management 32 (2021) 507–532."},"intvolume":"        32","page":"507-532","date_updated":"2024-04-18T12:46:37Z","author":[{"full_name":"Beverungen, Daniel","id":"59677","last_name":"Beverungen","first_name":"Daniel"},{"full_name":"Kundisch, Dennis","id":"21117","last_name":"Kundisch","first_name":"Dennis"},{"full_name":"Wünderlich, Nancy","id":"36392","last_name":"Wünderlich","first_name":"Nancy"}],"volume":32,"doi":"10.1108/JOSM-03-2020-0066"},{"_id":"23379","user_id":"1112","series_title":"Verlagsschriftenreihe des Heinz Nixdorf Instituts","department":[{"_id":"563"},{"_id":"26"}],"file_date_updated":"2021-08-20T18:35:06Z","type":"dissertation","status":"public","date_updated":"2024-07-12T12:05:50Z","supervisor":[{"full_name":"Gausemeier, Jürgen","last_name":"Gausemeier","first_name":"Jürgen"},{"full_name":"Stark, Rainer","last_name":"Stark","first_name":"Rainer"}],"author":[{"first_name":"Christian","full_name":"Koldewey, Christian","id":"43136","last_name":"Koldewey","orcid":"https://orcid.org/0000-0001-7992-6399"}],"volume":399,"doi":"10.17619/UNIPB/1-1167","publication_status":"epub_ahead","publication_identifier":{"isbn":["978-3-947647-18-7"]},"has_accepted_license":"1","place":"Paderborn","jel":["O32"],"citation":{"ama":"Koldewey C. <i>Systematik zur Entwicklung von Smart Service-Strategien im produzierenden Gewerbe</i>. Vol 399.; 2021:4, 217, A-41. doi:<a href=\"https://doi.org/10.17619/UNIPB/1-1167\">10.17619/UNIPB/1-1167</a>","ieee":"C. Koldewey, <i>Systematik zur Entwicklung von Smart Service-Strategien im produzierenden Gewerbe</i>, vol. 399. Paderborn, 2021, pp. 4, 217, A-41.","chicago":"Koldewey, Christian. <i>Systematik zur Entwicklung von Smart Service-Strategien im produzierenden Gewerbe</i>. Vol. 399. Verlagsschriftenreihe des Heinz Nixdorf Instituts. Paderborn, 2021. <a href=\"https://doi.org/10.17619/UNIPB/1-1167\">https://doi.org/10.17619/UNIPB/1-1167</a>.","apa":"Koldewey, C. (2021). <i>Systematik zur Entwicklung von Smart Service-Strategien im produzierenden Gewerbe</i> (Vol. 399, pp. 4, 217, A-41). <a href=\"https://doi.org/10.17619/UNIPB/1-1167\">https://doi.org/10.17619/UNIPB/1-1167</a>","bibtex":"@book{Koldewey_2021, place={Paderborn}, series={Verlagsschriftenreihe des Heinz Nixdorf Instituts}, title={Systematik zur Entwicklung von Smart Service-Strategien im produzierenden Gewerbe}, volume={399}, DOI={<a href=\"https://doi.org/10.17619/UNIPB/1-1167\">10.17619/UNIPB/1-1167</a>}, author={Koldewey, Christian}, year={2021}, pages={4, 217, A-41}, collection={Verlagsschriftenreihe des Heinz Nixdorf Instituts} }","short":"C. Koldewey, Systematik zur Entwicklung von Smart Service-Strategien im produzierenden Gewerbe, Paderborn, 2021.","mla":"Koldewey, Christian. <i>Systematik zur Entwicklung von Smart Service-Strategien im produzierenden Gewerbe</i>. 2021, pp. 4, 217, A-41, doi:<a href=\"https://doi.org/10.17619/UNIPB/1-1167\">10.17619/UNIPB/1-1167</a>."},"page":"4, 217, A-41","intvolume":"       399","ddc":["650"],"keyword":["Smart Service","Strategie"],"language":[{"iso":"ger"}],"abstract":[{"text":"Mit der zunehmenden Bedeutung von digitalen Lösungen und innovativen Dienstleistungen geht eine signifikante Transformation des produzierenden Gewerbes einher. Die Digitalisierung führt zu intelligenten Produkten, die Daten generieren und über das Internet austauschen. Auf Basis dieser Daten können Produkthersteller gänzlich neue digitale Dienstleistungen anbieten, sogenannte Smart Services. Ihre erfolgreiche Umsetzung ist essentiell, um in der Wettbewerbsarena der Zukunft bestehen zu können. Die Gestaltung eines Smart Service-Geschäfts ist jedoch nicht trivial. Ziel der vorliegenden Arbeit ist eine Systematik zur Entwicklung von Smart Service-Strategien im produzierenden Gewerbe. Die Systematik besteht aus drei Bestandteilen: der Erste ist die Konzeption von Smart Service-Strategien im Sinne eines Referenzmodells. Sie definiert die auszugestaltenden Aspekte. Der Zweite ist das Gestaltungswissen. Es werden Normstrategien und Funktionalitäten im Kontext von Smart Services für die Strategieentwicklung bereitgestellt. Die Strategieentwicklung wird im dritten Bestandteil adressiert, einer Methode bestehend aus einem Vorgehensmodell und unterstützenden Hilfsmitteln. Das Vorgehensmodell orchestriert den Einsatz der Hilfsmittel und des Gestaltungswissens. Resultat ist eine Smart Service-Strategie, die die Vision für das Smart Service-Geschäft sowie den Weg zu deren Realisierung darstellt. Die Systematik wurde anhand eines Unternehmens des Sondermaschinenbaus erfolgreich validiert.","lang":"ger"},{"text":"The increasing importance of digital solutions and innovative services is accompanied by a significant transformation of manufacturing. Digitalization leads to intelligent products that generate data and exchange them via the internet. Based on these data, product manufacturers can offer completely new digital services, so-called smart services. Their successful implementation is essential in order to survive in the competitive arena of the future. However, the design of a smart service-business is not trivial.The goal of this dissertation is a procedure for the development of smart service-strategies in manufacturing. It consists of three components: the first one is the conceptualization of smart service-strategies in the sense of a reference model. It defines the aspects to be determined during strategy development. The second component is design knowledge. It provides standard strategies and functionalities in the context of smart services for the development of the strategy. This is done using the third component, a method consisting of a process model and corresponding tools. The process model orchestrates the use of the tools and the design knowledge. The result is a smart service-strategy, which includes the vision for the smart service-business and the way to its realization. The procedure was successfully validated by means of a company in the field of special-purpose machine construction.","lang":"eng"}],"file":[{"file_size":47059853,"access_level":"closed","file_id":"23461","file_name":"Dissertation_Christian_Koldewey(1).pdf","date_updated":"2021-08-20T18:35:06Z","date_created":"2021-08-20T18:35:06Z","creator":"koldewey","success":1,"relation":"main_file","content_type":"application/pdf"}],"date_created":"2021-08-09T15:45:09Z","title":"Systematik zur Entwicklung von Smart Service-Strategien im produzierenden Gewerbe","year":"2021"},{"year":"2021","citation":{"chicago":"Dahmen, Stephan. <i>Regulating Transitions from School to Work. An Institutional Ethnography of Activation Work in Action</i>. Bielefeld University Press, 2021. <a href=\"https://doi.org/10.14361/9783839457061\">https://doi.org/10.14361/9783839457061</a>.","ieee":"S. Dahmen, <i>Regulating Transitions from School to Work. An Institutional Ethnography of Activation Work in Action</i>. Bielefeld University Press, 2021.","ama":"Dahmen S. <i>Regulating Transitions from School to Work. An Institutional Ethnography of Activation Work in Action</i>. Bielefeld University Press; 2021. doi:<a href=\"https://doi.org/10.14361/9783839457061\">10.14361/9783839457061</a>","short":"S. Dahmen, Regulating Transitions from School to Work. An Institutional Ethnography of Activation Work in Action, Bielefeld University Press, 2021.","mla":"Dahmen, Stephan. <i>Regulating Transitions from School to Work. An Institutional Ethnography of Activation Work in Action</i>. Bielefeld University Press, 2021, doi:<a href=\"https://doi.org/10.14361/9783839457061\">10.14361/9783839457061</a>.","bibtex":"@book{Dahmen_2021, title={Regulating Transitions from School to Work. An Institutional Ethnography of Activation Work in Action}, DOI={<a href=\"https://doi.org/10.14361/9783839457061\">10.14361/9783839457061</a>}, publisher={Bielefeld University Press}, author={Dahmen, Stephan}, year={2021} }","apa":"Dahmen, S. (2021). <i>Regulating Transitions from School to Work. An Institutional Ethnography of Activation Work in Action</i>. Bielefeld University Press. <a href=\"https://doi.org/10.14361/9783839457061\">https://doi.org/10.14361/9783839457061</a>"},"page":"312","date_updated":"2023-01-18T10:18:54Z","publisher":"Bielefeld University Press","date_created":"2023-01-18T10:18:09Z","author":[{"last_name":"Dahmen","id":"95659","full_name":"Dahmen, Stephan","first_name":"Stephan"}],"title":"Regulating Transitions from School to Work. An Institutional Ethnography of Activation Work in Action","doi":"10.14361/9783839457061","type":"book","abstract":[{"text":"How are activation programs for the young unemployed implemented? How do street-level bureaucrats deal with competing rationalities and demands for action? Transition policies increasingly aim at promoting self-regulation and constructing employable subjects. Stephan Dahmen explores the practical regulation of biographical transitions in activation programs for the young unemployed by focusing on the interactive accomplishment of activation work. The study reveals how the critical tensions of activation policies are continually re-interpreted and adapted to local contingencies and describes the various organisational technologies used for creating employable subjects.","lang":"eng"}],"status":"public","_id":"37274","user_id":"48187","department":[{"_id":"723"},{"_id":"724"},{"_id":"36"}],"keyword":["Youth","Welfare State","Transitions","Human Service Organizations","Institutional Ethnography","Activation","Sociology of Conventions","Work","Education","Educational Research","Sociology of Education","Social Pedagogy","History of Education","Bielefeld University Press"],"language":[{"iso":"eng"}]},{"status":"public","abstract":[{"text":"How are activation programs for the young unemployed implemented? How do street-level bureaucrats deal with competing rationalities and demands for action? Transition policies increasingly aim at promoting self-regulation and constructing employable subjects. Stephan Dahmen explores the practical regulation of biographical transitions in activation programs for the young unemployed by focusing on the interactive accomplishment of activation work. The study reveals how the critical tensions of activation policies are continually re-interpreted and adapted to local contingencies and describes the various organisational technologies used for creating employable subjects.","lang":"eng"}],"type":"book","language":[{"iso":"eng"}],"keyword":["Youth","Welfare State","Transitions","Human Service Organizations","Institutional Ethnography","Activation","Sociology of Conventions","Work","Education","Educational Research","Sociology of Education","Social Pedagogy","History of Education","Bielefeld University Press"],"department":[{"_id":"723"},{"_id":"724"}],"user_id":"48187","_id":"37273","page":"312","citation":{"short":"S. Dahmen, Regulating Transitions from School to Work. An Institutional Ethnography of Activation Work in Action, Bielefeld University Press, 2021.","mla":"Dahmen, Stephan. <i>Regulating Transitions from School to Work. An Institutional Ethnography of Activation Work in Action</i>. Bielefeld University Press, 2021, doi:<a href=\"https://doi.org/10.14361/9783839457061\">10.14361/9783839457061</a>.","bibtex":"@book{Dahmen_2021, title={Regulating Transitions from School to Work. An Institutional Ethnography of Activation Work in Action}, DOI={<a href=\"https://doi.org/10.14361/9783839457061\">10.14361/9783839457061</a>}, publisher={Bielefeld University Press}, author={Dahmen, Stephan}, year={2021} }","apa":"Dahmen, S. (2021). <i>Regulating Transitions from School to Work. An Institutional Ethnography of Activation Work in Action</i>. Bielefeld University Press. <a href=\"https://doi.org/10.14361/9783839457061\">https://doi.org/10.14361/9783839457061</a>","ieee":"S. Dahmen, <i>Regulating Transitions from School to Work. An Institutional Ethnography of Activation Work in Action</i>. Bielefeld University Press, 2021.","chicago":"Dahmen, Stephan. <i>Regulating Transitions from School to Work. An Institutional Ethnography of Activation Work in Action</i>. Bielefeld University Press, 2021. <a href=\"https://doi.org/10.14361/9783839457061\">https://doi.org/10.14361/9783839457061</a>.","ama":"Dahmen S. <i>Regulating Transitions from School to Work. An Institutional Ethnography of Activation Work in Action</i>. Bielefeld University Press; 2021. doi:<a href=\"https://doi.org/10.14361/9783839457061\">10.14361/9783839457061</a>"},"year":"2021","doi":"10.14361/9783839457061","title":"Regulating Transitions from School to Work. An Institutional Ethnography of Activation Work in Action","author":[{"last_name":"Dahmen","full_name":"Dahmen, Stephan","first_name":"Stephan"}],"date_created":"2023-01-18T10:14:30Z","date_updated":"2023-01-18T10:16:56Z","publisher":"Bielefeld University Press"},{"year":"2021","citation":{"ama":"Ichev R, Koren J, Kosi U, Sitar Sustar K, Valentincic A. <i>Cost of Debt for Private Firms Revisited: Voluntary Audits as a Reflection of Risk</i>.; 2021.","ieee":"R. Ichev, J. Koren, U. Kosi, K. Sitar Sustar, and A. Valentincic, <i>Cost of Debt for Private Firms Revisited: Voluntary Audits as a Reflection of Risk</i>. 2021.","chicago":"Ichev, Riste, Jernej Koren, Urska Kosi, Katarina Sitar Sustar, and Aljosa Valentincic. <i>Cost of Debt for Private Firms Revisited: Voluntary Audits as a Reflection of Risk</i>, 2021.","mla":"Ichev, Riste, et al. <i>Cost of Debt for Private Firms Revisited: Voluntary Audits as a Reflection of Risk</i>. 2021.","short":"R. Ichev, J. Koren, U. Kosi, K. Sitar Sustar, A. Valentincic, Cost of Debt for Private Firms Revisited: Voluntary Audits as a Reflection of Risk, 2021.","bibtex":"@book{Ichev_Koren_Kosi_Sitar Sustar_Valentincic_2021, title={Cost of Debt for Private Firms Revisited: Voluntary Audits as a Reflection of Risk}, author={Ichev, Riste and Koren, Jernej and Kosi, Urska and Sitar Sustar, Katarina and Valentincic, Aljosa}, year={2021} }","apa":"Ichev, R., Koren, J., Kosi, U., Sitar Sustar, K., &#38; Valentincic, A. (2021). <i>Cost of Debt for Private Firms Revisited: Voluntary Audits as a Reflection of Risk</i>."},"title":"Cost of Debt for Private Firms Revisited: Voluntary Audits as a Reflection of Risk","main_file_link":[{"url":"https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3853927"}],"date_updated":"2023-01-18T13:40:40Z","author":[{"first_name":"Riste","last_name":"Ichev","full_name":"Ichev, Riste"},{"full_name":"Koren, Jernej","last_name":"Koren","first_name":"Jernej"},{"first_name":"Urska","id":"54068","full_name":"Kosi, Urska","last_name":"Kosi"},{"first_name":"Katarina","last_name":"Sitar Sustar","full_name":"Sitar Sustar, Katarina"},{"first_name":"Aljosa","full_name":"Valentincic, Aljosa","last_name":"Valentincic"}],"date_created":"2023-01-17T15:03:08Z","abstract":[{"text":"This study examines the relation between voluntary audit and the cost of debt in private firms. We use a sample of 4,058 small private firms operating in the period 2006‐2017 that are not subject to mandatory audits. Firms decide for a voluntary audit of financial statements either because the economic setting in which they operate effectively forces them to do so (e.g., ownership complexity, export‐oriented supply chain, subsidiary status) or because firm fundamentals and/or financial reporting practices limit their access to financial debt, both reflected in earnings quality. We use these factors to model the decision for voluntary audit. In the outcome analyses, we find robust evidence that voluntary audits are associated with higher, rather than lower, interest rate by up to 3.0 percentage points. This effect is present regardless of the perceived audit quality (Big‐4 vs. non‐Big‐4), but is stronger for non‐Big‐4 audits where auditees have a stronger position relative to auditors. Audited firms’ earnings are less informative about future operating performance relative to unaudited counterparts. We conclude that voluntary audits facilitate access to financial debt for firms with higher risk that may otherwise have no access to this form of financing. The price paid is reflected in higher interest rates charged to firms with voluntary audits – firms with higher information and/or fundamental risk.","lang":"eng"}],"status":"public","type":"working_paper","keyword":["private firms","voluntary audit","cost of debt","self‐selection bias","risk"],"language":[{"iso":"eng"}],"_id":"37136","department":[{"_id":"635"},{"_id":"186"},{"_id":"551"}],"user_id":"88603"},{"language":[{"iso":"eng"}],"keyword":["Self-piercing riveting","Lightweight design","Deformation behaviour","Stainless steel","High nitrogen steel"],"department":[{"_id":"157"}],"user_id":"53912","_id":"22930","status":"public","editor":[{"first_name":"Glenn","full_name":"Daehn, Glenn","last_name":"Daehn"},{"first_name":"Jian","full_name":"Cao, Jian","last_name":"Cao"},{"first_name":"Brad","last_name":"Kinsey","full_name":"Kinsey, Brad"},{"first_name":"Erman","full_name":"Tekkaya, Erman","last_name":"Tekkaya"},{"full_name":"Vivek, Anupam","last_name":"Vivek","first_name":"Anupam"},{"first_name":"Yoshinori","full_name":"Yoshida, Yoshinori","last_name":"Yoshida"}],"abstract":[{"lang":"eng","text":"Self-piercing riveting is an established technique for joining multi-material structures in car body manufacturing. Rivets for self-piercing riveting differ in their geometry, the material used, the condition of the material and their surface condition. To shorten the manufacturing process by omitting the heat treatment and the coating process, the authors have elaborated a concept for the use of stainless steel with high strain hardening as a rivet material. The focus of the present investigation is on the evaluation of the influences of the rivet’s geometry and material on its deformation behaviour. Conventional rivets of types P and HD2, a rivet with an improved geometry made of treatable steel 38B2, and rivets made of the stainless steels 1.3815 and 1.4541 are examined. The analysis is conducted by means of multi-step joining tests for two material combinations comprising high-strength steel HCT70X and aluminium EN AW-5083. The joints are cut to provide a cross-section and the deformation behaviour of the different rivets is analysed on the basis of the measured changes in geometry and hardness. In parallel, an examination of the force-stroke curves provides further insights. It can be demonstrated that, besides the geometry, the material strength, in particular, has a significant influence on the deformation behaviour of the rivet. The strength of steel 1.4541 is seen to be too low for the joining task, while the strength of steel 1.3815 is sufficient, and hence the investigation confirms the capability of rivets made of 1.3815 for joining even challenging material combinations."}],"publication":"Forming the Future - Proceedings of the 13th International Conference on the Technology of Plasticity. The Minerals, Metals & Materials Series.","type":"book_chapter","doi":"10.1007/978-3-030-75381-8_124","title":"Self-Piercing Riveting Using Rivets Made of Stainless Steel with High Strain Hardening","date_created":"2021-08-04T14:02:32Z","author":[{"last_name":"Uhe","full_name":"Uhe, Benedikt","id":"38131","first_name":"Benedikt"},{"first_name":"Clara-Maria","last_name":"Kuball","full_name":"Kuball, Clara-Maria"},{"full_name":"Merklein, Marion","last_name":"Merklein","first_name":"Marion"},{"orcid":"0000-0002-2763-1246","last_name":"Meschut","id":"32056","full_name":"Meschut, Gerson","first_name":"Gerson"}],"date_updated":"2026-02-27T10:40:39Z","publisher":"Springer","page":"1495-1506","citation":{"chicago":"Uhe, Benedikt, Clara-Maria Kuball, Marion Merklein, and Gerson Meschut. “Self-Piercing Riveting Using Rivets Made of Stainless Steel with High Strain Hardening.” In <i>Forming the Future - Proceedings of the 13th International Conference on the Technology of Plasticity. The Minerals, Metals &#38; Materials Series.</i>, edited by Glenn Daehn, Jian Cao, Brad Kinsey, Erman Tekkaya, Anupam Vivek, and Yoshinori Yoshida, 1495–1506. Cham: Springer, 2021. <a href=\"https://doi.org/10.1007/978-3-030-75381-8_124\">https://doi.org/10.1007/978-3-030-75381-8_124</a>.","ieee":"B. Uhe, C.-M. Kuball, M. Merklein, and G. Meschut, “Self-Piercing Riveting Using Rivets Made of Stainless Steel with High Strain Hardening,” in <i>Forming the Future - Proceedings of the 13th International Conference on the Technology of Plasticity. The Minerals, Metals &#38; Materials Series.</i>, G. Daehn, J. Cao, B. Kinsey, E. Tekkaya, A. Vivek, and Y. Yoshida, Eds. Cham: Springer, 2021, pp. 1495–1506.","ama":"Uhe B, Kuball C-M, Merklein M, Meschut G. Self-Piercing Riveting Using Rivets Made of Stainless Steel with High Strain Hardening. In: Daehn G, Cao J, Kinsey B, Tekkaya E, Vivek A, Yoshida Y, eds. <i>Forming the Future - Proceedings of the 13th International Conference on the Technology of Plasticity. The Minerals, Metals &#38; Materials Series.</i> Springer; 2021:1495-1506. doi:<a href=\"https://doi.org/10.1007/978-3-030-75381-8_124\">10.1007/978-3-030-75381-8_124</a>","short":"B. Uhe, C.-M. Kuball, M. Merklein, G. Meschut, in: G. Daehn, J. Cao, B. Kinsey, E. Tekkaya, A. Vivek, Y. Yoshida (Eds.), Forming the Future - Proceedings of the 13th International Conference on the Technology of Plasticity. The Minerals, Metals &#38; Materials Series., Springer, Cham, 2021, pp. 1495–1506.","bibtex":"@inbook{Uhe_Kuball_Merklein_Meschut_2021, place={Cham}, title={Self-Piercing Riveting Using Rivets Made of Stainless Steel with High Strain Hardening}, DOI={<a href=\"https://doi.org/10.1007/978-3-030-75381-8_124\">10.1007/978-3-030-75381-8_124</a>}, booktitle={Forming the Future - Proceedings of the 13th International Conference on the Technology of Plasticity. The Minerals, Metals &#38; Materials Series.}, publisher={Springer}, author={Uhe, Benedikt and Kuball, Clara-Maria and Merklein, Marion and Meschut, Gerson}, editor={Daehn, Glenn and Cao, Jian and Kinsey, Brad and Tekkaya, Erman and Vivek, Anupam and Yoshida, Yoshinori}, year={2021}, pages={1495–1506} }","mla":"Uhe, Benedikt, et al. “Self-Piercing Riveting Using Rivets Made of Stainless Steel with High Strain Hardening.” <i>Forming the Future - Proceedings of the 13th International Conference on the Technology of Plasticity. The Minerals, Metals &#38; Materials Series.</i>, edited by Glenn Daehn et al., Springer, 2021, pp. 1495–506, doi:<a href=\"https://doi.org/10.1007/978-3-030-75381-8_124\">10.1007/978-3-030-75381-8_124</a>.","apa":"Uhe, B., Kuball, C.-M., Merklein, M., &#38; Meschut, G. (2021). Self-Piercing Riveting Using Rivets Made of Stainless Steel with High Strain Hardening. In G. Daehn, J. Cao, B. Kinsey, E. Tekkaya, A. Vivek, &#38; Y. Yoshida (Eds.), <i>Forming the Future - Proceedings of the 13th International Conference on the Technology of Plasticity. The Minerals, Metals &#38; Materials Series.</i> (pp. 1495–1506). Springer. <a href=\"https://doi.org/10.1007/978-3-030-75381-8_124\">https://doi.org/10.1007/978-3-030-75381-8_124</a>"},"year":"2021","place":"Cham","quality_controlled":"1","publication_status":"published"},{"quality_controlled":"1","year":"2021","citation":{"ieee":"B. Uhe, C.-M. Kuball, M. Merklein, and G. Meschut, “Strength of self-piercing riveted Joints with conventional Rivets and Rivets made of High Nitrogen Steel,” presented at the 24th International Conference on Material Forming (ESAFORM), Liège, Belgien, 2021, doi: <a href=\"https://doi.org/10.25518/esaform21.1911\">10.25518/esaform21.1911</a>.","chicago":"Uhe, Benedikt, Clara-Maria Kuball, Marion Merklein, and Gerson Meschut. “Strength of Self-Piercing Riveted Joints with Conventional Rivets and Rivets Made of High Nitrogen Steel,” 2021. <a href=\"https://doi.org/10.25518/esaform21.1911\">https://doi.org/10.25518/esaform21.1911</a>.","apa":"Uhe, B., Kuball, C.-M., Merklein, M., &#38; Meschut, G. (2021). <i>Strength of self-piercing riveted Joints with conventional Rivets and Rivets made of High Nitrogen Steel</i>. 24th International Conference on Material Forming (ESAFORM), Liège, Belgien. <a href=\"https://doi.org/10.25518/esaform21.1911\">https://doi.org/10.25518/esaform21.1911</a>","ama":"Uhe B, Kuball C-M, Merklein M, Meschut G. Strength of self-piercing riveted Joints with conventional Rivets and Rivets made of High Nitrogen Steel. In: ; 2021. doi:<a href=\"https://doi.org/10.25518/esaform21.1911\">10.25518/esaform21.1911</a>","bibtex":"@inproceedings{Uhe_Kuball_Merklein_Meschut_2021, title={Strength of self-piercing riveted Joints with conventional Rivets and Rivets made of High Nitrogen Steel}, DOI={<a href=\"https://doi.org/10.25518/esaform21.1911\">10.25518/esaform21.1911</a>}, author={Uhe, Benedikt and Kuball, Clara-Maria and Merklein, Marion and Meschut, Gerson}, year={2021} }","mla":"Uhe, Benedikt, et al. <i>Strength of Self-Piercing Riveted Joints with Conventional Rivets and Rivets Made of High Nitrogen Steel</i>. 2021, doi:<a href=\"https://doi.org/10.25518/esaform21.1911\">10.25518/esaform21.1911</a>.","short":"B. Uhe, C.-M. Kuball, M. Merklein, G. Meschut, in: 2021."},"date_updated":"2026-02-27T10:25:13Z","author":[{"id":"38131","full_name":"Uhe, Benedikt","last_name":"Uhe","first_name":"Benedikt"},{"full_name":"Kuball, Clara-Maria","last_name":"Kuball","first_name":"Clara-Maria"},{"full_name":"Merklein, Marion","last_name":"Merklein","first_name":"Marion"},{"first_name":"Gerson","orcid":"0000-0002-2763-1246","last_name":"Meschut","full_name":"Meschut, Gerson","id":"32056"}],"date_created":"2021-05-31T10:17:37Z","title":"Strength of self-piercing riveted Joints with conventional Rivets and Rivets made of High Nitrogen Steel","doi":"10.25518/esaform21.1911","conference":{"location":"Liège, Belgien","end_date":"2021-04-16","start_date":"2021-04-14","name":"24th International Conference on Material Forming (ESAFORM)"},"type":"conference","abstract":[{"lang":"eng","text":"The use of high-strength steel and aluminium is rising due to the intensified efforts being made in lightweight design, and self-piercing riveting is becoming increasingly important. Conventional rivets for self-piercing riveting differ in their geometry, the material used, the condition of the material and the coating. To shorten the manufacturing process, the use of stainless steel with high strain hardening as the rivet material represents a promising approach. This allows the coating of the rivets to be omitted due to the corrosion resistance of the material and, since the strength of the stainless steel is achieved by cold forming, heat treatment is no longer required. In addition, it is possible to adjust the local strength within the rivet. Because of that, the authors have elaborated a concept for using high nitrogen steel 1.3815 as the rivet material. The present investigation focusses on the joint strength in order to evaluate the capability of rivets in high nitrogen steel by comparison to conventional rivets made of treatable steel. Due to certain challenges in the forming process of the high nitrogen steel rivets, deviations result from the targeted rivet geometry. Mainly these deviations cause a lower joint strength with these rivets, which is, however, adequate. All in all, the capability of the new rivet is proven by the results of this investigation. "}],"status":"public","_id":"22274","department":[{"_id":"157"}],"user_id":"53912","keyword":["Self-piercing Riveting","Joining Technology","Rivet Geometry","Rivet Material","High Nitrogen Steel","Joint Strength"],"language":[{"iso":"eng"}]},{"publisher":"Springer Science and Business Media LLC","date_created":"2022-08-03T05:53:48Z","title":"The digital home learning environment and its relation to children’s ICT self-efficacy","issue":"2","year":"2021","keyword":["Digital media use","Gender","Home learning environment","ICT self-efcacy","Motivation","Parental involvement"],"language":[{"iso":"eng"}],"publication":"Learning Environments Research","abstract":[{"lang":"eng","text":"With the rapid progress of technological development, self-efficacy in reference to digital devices (i.e., information and computer technology [ICT] self-efficacy) is an important driver that helps students to deal with technological problems and support their lifelong learning processes. Schools, peers, and home learning environments are important sources for the development of positive self-efficacy. Expanding on previous research, we investigated the associations between different aspects of the digital home learning environment and students’ ICT self-efficacy. The moderation effects of gender were also tested. A total of 651 children answered a questionnaire about different digital home learning environment dimensions and estimated their ICT self-efficacy using an adapted scale—Schwarzer and Jerusalem’s (1999) general self-efficacy scale. Using the structural equation modeling technique, a digital home learning environment containing six different qualities of parental support was investigated. Families’ cultural capital, parents’ attitudes toward the Internet, and shared Internet activities at home contributed positively to ICT self-efficacy. We observed small gender differences, with the moderation effect being nonsignificant. The results help researchers and practitioners to understand how different dimensions of the digital home learning environment support ICT self-efficacy. We will discuss how parents can enhance the home learning environment and how teachers can integrate this knowledge into formal education."}],"date_updated":"2025-07-16T08:38:51Z","oa":"1","volume":25,"author":[{"last_name":"Bonanati","full_name":"Bonanati, Sabrina","first_name":"Sabrina"},{"first_name":"Heike M.","last_name":"Buhl","id":"27152","full_name":"Buhl, Heike M."}],"doi":"10.1007/s10984-021-09377-8","main_file_link":[{"url":"https://link.springer.com/content/pdf/10.1007/s10984-021-09377-8.pdf","open_access":"1"}],"publication_identifier":{"issn":["1387-1579","1573-1855"]},"publication_status":"published","intvolume":"        25","page":"485-505","citation":{"apa":"Bonanati, S., &#38; Buhl, H. M. (2021). The digital home learning environment and its relation to children’s ICT self-efficacy. <i>Learning Environments Research</i>, <i>25</i>(2), 485–505. <a href=\"https://doi.org/10.1007/s10984-021-09377-8\">https://doi.org/10.1007/s10984-021-09377-8</a>","short":"S. Bonanati, H.M. Buhl, Learning Environments Research 25 (2021) 485–505.","mla":"Bonanati, Sabrina, and Heike M. Buhl. “The Digital Home Learning Environment and Its Relation to Children’s ICT Self-Efficacy.” <i>Learning Environments Research</i>, vol. 25, no. 2, Springer Science and Business Media LLC, 2021, pp. 485–505, doi:<a href=\"https://doi.org/10.1007/s10984-021-09377-8\">10.1007/s10984-021-09377-8</a>.","bibtex":"@article{Bonanati_Buhl_2021, title={The digital home learning environment and its relation to children’s ICT self-efficacy}, volume={25}, DOI={<a href=\"https://doi.org/10.1007/s10984-021-09377-8\">10.1007/s10984-021-09377-8</a>}, number={2}, journal={Learning Environments Research}, publisher={Springer Science and Business Media LLC}, author={Bonanati, Sabrina and Buhl, Heike M.}, year={2021}, pages={485–505} }","chicago":"Bonanati, Sabrina, and Heike M. Buhl. “The Digital Home Learning Environment and Its Relation to Children’s ICT Self-Efficacy.” <i>Learning Environments Research</i> 25, no. 2 (2021): 485–505. <a href=\"https://doi.org/10.1007/s10984-021-09377-8\">https://doi.org/10.1007/s10984-021-09377-8</a>.","ieee":"S. Bonanati and H. M. Buhl, “The digital home learning environment and its relation to children’s ICT self-efficacy,” <i>Learning Environments Research</i>, vol. 25, no. 2, pp. 485–505, 2021, doi: <a href=\"https://doi.org/10.1007/s10984-021-09377-8\">10.1007/s10984-021-09377-8</a>.","ama":"Bonanati S, Buhl HM. The digital home learning environment and its relation to children’s ICT self-efficacy. <i>Learning Environments Research</i>. 2021;25(2):485-505. doi:<a href=\"https://doi.org/10.1007/s10984-021-09377-8\">10.1007/s10984-021-09377-8</a>"},"_id":"32558","project":[{"name":"DigHomE: DigHomE: Digital Home Learning Environment – Gelingensbedingungen elterlicher Unterstützung bei der informationsorientierten Internetnutzung","_id":"378","grant_number":"01JD1814A"}],"department":[{"_id":"427"}],"user_id":"27152","type":"journal_article","status":"public"},{"project":[{"name":"SFB 901","_id":"1"},{"name":"SFB 901 - Project Area C","_id":"4"},{"_id":"16","name":"SFB 901 - Subproject C4"}],"_id":"19607","user_id":"35343","department":[{"_id":"75"}],"file_date_updated":"2020-09-22T06:36:25Z","type":"conference","status":"public","date_updated":"2022-01-06T06:54:08Z","oa":"1","author":[{"first_name":"Stefan Balthasar","last_name":"Schneider","orcid":"0000-0001-8210-4011","id":"35343","full_name":"Schneider, Stefan Balthasar"},{"full_name":"Klenner, Lars Dietrich","last_name":"Klenner","first_name":"Lars Dietrich"},{"first_name":"Holger","id":"126","full_name":"Karl, Holger","last_name":"Karl"}],"has_accepted_license":"1","citation":{"mla":"Schneider, Stefan Balthasar, et al. “Every Node for Itself: Fully Distributed Service Coordination.” <i>IEEE International Conference on Network and Service Management (CNSM)</i>, IEEE, 2020.","short":"S.B. Schneider, L.D. Klenner, H. Karl, in: IEEE International Conference on Network and Service Management (CNSM), IEEE, 2020.","bibtex":"@inproceedings{Schneider_Klenner_Karl_2020, title={Every Node for Itself: Fully Distributed Service Coordination}, booktitle={IEEE International Conference on Network and Service Management (CNSM)}, publisher={IEEE}, author={Schneider, Stefan Balthasar and Klenner, Lars Dietrich and Karl, Holger}, year={2020} }","apa":"Schneider, S. B., Klenner, L. D., &#38; Karl, H. (2020). Every Node for Itself: Fully Distributed Service Coordination. In <i>IEEE International Conference on Network and Service Management (CNSM)</i>. IEEE.","ieee":"S. B. Schneider, L. D. Klenner, and H. Karl, “Every Node for Itself: Fully Distributed Service Coordination,” in <i>IEEE International Conference on Network and Service Management (CNSM)</i>, 2020.","chicago":"Schneider, Stefan Balthasar, Lars Dietrich Klenner, and Holger Karl. “Every Node for Itself: Fully Distributed Service Coordination.” In <i>IEEE International Conference on Network and Service Management (CNSM)</i>. IEEE, 2020.","ama":"Schneider SB, Klenner LD, Karl H. Every Node for Itself: Fully Distributed Service Coordination. In: <i>IEEE International Conference on Network and Service Management (CNSM)</i>. IEEE; 2020."},"ddc":["006"],"keyword":["distributed management","service coordination","network coordination","nfv","softwarization","orchestration"],"language":[{"iso":"eng"}],"publication":"IEEE International Conference on Network and Service Management (CNSM)","abstract":[{"text":"Modern services consist of modular, interconnected\r\ncomponents, e.g., microservices forming a service mesh. To\r\ndynamically adjust to ever-changing service demands, service\r\ncomponents have to be instantiated on nodes across the network.\r\nIncoming flows requesting a service then need to be routed\r\nthrough the deployed instances while considering node and link\r\ncapacities. Ultimately, the goal is to maximize the successfully\r\nserved flows and Quality of Service (QoS) through online service\r\ncoordination. Current approaches for service coordination are\r\nusually centralized, assuming up-to-date global knowledge and\r\nmaking global decisions for all nodes in the network. Such global\r\nknowledge and centralized decisions are not realistic in practical\r\nlarge-scale networks.\r\n\r\nTo solve this problem, we propose two algorithms for fully\r\ndistributed service coordination. The proposed algorithms can be\r\nexecuted individually at each node in parallel and require only\r\nvery limited global knowledge. We compare and evaluate both\r\nalgorithms with a state-of-the-art centralized approach in extensive\r\nsimulations on a large-scale, real-world network topology.\r\nOur results indicate that the two algorithms can compete with\r\ncentralized approaches in terms of solution quality but require\r\nless global knowledge and are magnitudes faster (more than\r\n100x).","lang":"eng"}],"file":[{"content_type":"application/pdf","relation":"main_file","creator":"stschn","date_created":"2020-09-22T06:25:57Z","date_updated":"2020-09-22T06:36:25Z","file_name":"ris_with_copyright.pdf","access_level":"open_access","file_id":"19608","file_size":500948}],"publisher":"IEEE","date_created":"2020-09-22T06:23:40Z","title":"Every Node for Itself: Fully Distributed Service Coordination","year":"2020"}]
