[{"conference":{"end_date":"2021-11-17","location":"Würzburg","name":"3. VDI-Fachtagung ","start_date":"2021-11-16"},"status":"public","user_id":"9557","_id":"27652","publisher":"VDI Verlag GmbH","page":"197 - 210","citation":{"mla":"Aimiyekagbon, Osarenren Kennedy, et al. “Extraktion und Selektion geeigneter Merkmale für die Restlebensdauerprognose von technischen Systemen trotz aleatorischen Unsicherheiten .” VDI-Berichte 2391, VDI Verlag GmbH, 2021, pp. 197–210.","bibtex":"@inproceedings{Aimiyekagbon_Bender_Sextro_2021, place={Düsseldorf}, title={Extraktion und Selektion geeigneter Merkmale für die Restlebensdauerprognose von technischen Systemen trotz aleatorischen Unsicherheiten }, booktitle={VDI-Berichte 2391}, publisher={VDI Verlag GmbH}, author={Aimiyekagbon, Osarenren Kennedy and Bender, Amelie and Sextro, Walter}, year={2021}, pages={197–210} }","ama":"Aimiyekagbon OK, Bender A, Sextro W. Extraktion und Selektion geeigneter Merkmale für die Restlebensdauerprognose von technischen Systemen trotz aleatorischen Unsicherheiten . In: VDI-Berichte 2391. VDI Verlag GmbH; 2021:197-210.","ieee":"O. K. Aimiyekagbon, A. Bender, and W. Sextro, “Extraktion und Selektion geeigneter Merkmale für die Restlebensdauerprognose von technischen Systemen trotz aleatorischen Unsicherheiten ,” in VDI-Berichte 2391, Würzburg, 2021, pp. 197–210.","apa":"Aimiyekagbon, O. K., Bender, A., & Sextro, W. (2021). Extraktion und Selektion geeigneter Merkmale für die Restlebensdauerprognose von technischen Systemen trotz aleatorischen Unsicherheiten . VDI-Berichte 2391, 197–210.","short":"O.K. Aimiyekagbon, A. Bender, W. Sextro, in: VDI-Berichte 2391, VDI Verlag GmbH, Düsseldorf, 2021, pp. 197–210.","chicago":"Aimiyekagbon, Osarenren Kennedy, Amelie Bender, and Walter Sextro. “Extraktion und Selektion geeigneter Merkmale für die Restlebensdauerprognose von technischen Systemen trotz aleatorischen Unsicherheiten .” In VDI-Berichte 2391, 197–210. Düsseldorf: VDI Verlag GmbH, 2021."},"place":"Düsseldorf","date_updated":"2022-01-06T06:57:43Z","publication_status":"published","author":[{"id":"9557","full_name":"Aimiyekagbon, Osarenren Kennedy","last_name":"Aimiyekagbon","first_name":"Osarenren Kennedy"},{"id":"54290","last_name":"Bender","first_name":"Amelie","full_name":"Bender, Amelie"},{"first_name":"Walter","last_name":"Sextro","full_name":"Sextro, Walter","id":"21220"}],"publication_identifier":{"issn":["0083-5560 "],"isbn":["978-3-18-092391-8"]},"title":"Extraktion und Selektion geeigneter Merkmale für die Restlebensdauerprognose von technischen Systemen trotz aleatorischen Unsicherheiten ","year":"2021","language":[{"iso":"ger"}],"abstract":[{"lang":"ger","text":"Aufgrund der Fortschritte der Digitalisierung finden Systeme zur Zustandsüberwachung vermehrt Einsatz in der Industrie, um durch eine zustandsbasierte oder eine prädiktive Instandhaltung Vorteile, wie eine verbesserte Zuverlässigkeit und geringere Kosten zu erzielen. Dabei beruhen Zustandsüberwachungssysteme auf den folgenden Bausteinen: Sensorik, Datenvorverarbeitung, Merkmalsextraktion und -auswahl, Diagnose bzw. Prognose sowie einer Entscheidungsfindung basierend auf den Ergebnissen. Jeder dieser Bausteine erfordert individuelle Einstellungen, um ein geeignetes Zustandsüberwachungssystem für die jeweilige Anwendung zu entwickeln. Eine offene Fragestellung im Bereich der Zustandsüberwachung ergibt sich aufgrund der Unsicherheit der Zukunft, die sich in den zukünftigen Betriebs- und Umgebungsbedingungen zeigt. Diese Unsicherheit gilt es in allen Bausteinen zu berücksichtigen.\r\nDieser Beitrag konzentriert sich auf den Baustein Merkmalsextraktion und -selektion, mit dem Ziel anhand geeigneter Merkmale eine Prognose der nutzbaren Restlebensdauer mit hoher Genauigkeit realisieren zu können. Daher werden geeignete Merkmale aus dem Zeitbereich und daraus abgeleitete Zustandsindikatoren für die Restlebensdauerprognose von technischen Systemen vorgestellt. Dabei sind Zustandsindikatoren Kenngrößen zur Beobachtung des Zustands der kritischen Systemkomponenten. Anhand dreier Anwendungsbeispiele wird ihre Eignung evaluiert. Dabei werden Daten aus Lebensdauerversuchen unter instationären Betriebs- und Umgebungsbedingungen ausgewertet. Die auftretenden Unsicherheiten der Zukunft werden somit berücksichtigt. Die Beispielsysteme beruhen auf Gummi-Metall-Elementen und Wälzlagern. Aus den generierten Ergebnissen lässt sich schließen, dass die Zustandsindikatoren aus der betrachteten Zeitreihen-Toolbox auch unter unbekannten Betriebs- und Umgebungsbedingungen robust sind.\r\n"},{"text":"Due to the advances in digitalization, condition monitoring systems have found numerous applications in the industry due to benefits such as improved reliability and lowered costs through condition-based or predictive maintenance. Condition monitoring systems typically involve elements, such as data acquisition via suitable sensors, data preprocessing, feature extraction and selection, diagnostics, prognostics and (maintenance) decisions based on diagnosis or prognosis. For the application-specific development of a suitable condition monitoring system, each of these elements requires individual settings. Due to the uncertainty of the future, an open question arises in the condition monitoring field, which is reflected in unknown future operating and environmental conditions. This uncertainty needs consideration in all elements of a condition monitoring system.\r\nThis article focuses on feature extraction and selection, building on the hypothesis that the remaining useful life of a technical system can be predicted with high accuracy utilizing suitable features. In this article, health indicators derived from time-domain features that permit the monitoring of the health of critical system components are presented for predicting the remaining useful life of technical systems. Three distinct application examples based on rubber-metal elements and rolling-element bearings are evaluated to validate the suitability of the presented methods. Experimental data from accelerated lifetime tests conducted under non-stationary operating and environmental conditions are considered to take possible future uncertainties into account. It can be concluded from the acquired results that health indicators derived from the presented time series toolbox are robust to varying operating and environmental conditions.\r\n","lang":"eng"}],"publication":"VDI-Berichte 2391","department":[{"_id":"151"}],"keyword":["run-to-failure","rubber-metal element","bearing prognostics","non-stationary operating conditions","varying operating conditions","feature extraction","feature selection"],"type":"conference","date_created":"2021-11-22T07:42:44Z"},{"doi":"10.1007/978-3-030-79186-5_17","language":[{"iso":"eng"}],"date_updated":"2022-01-06T06:55:08Z","author":[{"last_name":"Gottschalk","first_name":"Sebastian","full_name":"Gottschalk, Sebastian","id":"47208"},{"id":"8447","full_name":"Yigitbas, Enes","orcid":"0000-0002-5967-833X","first_name":"Enes","last_name":"Yigitbas"},{"full_name":"Nowosad, Alexander","last_name":"Nowosad","first_name":"Alexander"},{"full_name":"Engels, Gregor","first_name":"Gregor","last_name":"Engels"}],"year":"2021","title":"Situation-specific Business Model Development Methods for Mobile App Developers","department":[{"_id":"66"},{"_id":"534"}],"type":"conference","keyword":["Business Model Development","Situational Method Engineering","Mobile App","Business Model Development Tools"],"date_created":"2021-04-20T13:23:41Z","file":[{"date_updated":"2021-07-20T16:20:15Z","relation":"main_file","access_level":"open_access","file_size":638707,"file_name":"EMMSAD21.pdf","content_type":"application/pdf","file_id":"22769","creator":"sego","date_created":"2021-07-20T16:19:27Z"}],"abstract":[{"lang":"eng","text":"The development of effective business models is an essential task in highly competitive markets like mobile ecosystems. Existing development methods for these business models do not specifically focus that the development process profoundly depends on the situation (e.g., market size, regulations) of the mobile app developer. Here, a mismatch between method and situation can lead to poor resource management and longer development cycles. In software engineering, situational method engineering is used for software projects to configure a development method out of a method repository based on the project situation. Analogously, we support creating situation-specific business model development methods with a method base and new user roles. Here, the method engineer obtains the knowledge of the domain expert and stores it in the method base as elements, building blocks, and patterns. The expert knowledge is derived from a grey literature review on mobile development processes. After this, the method engineer constructs the development method based on the described situation of the business developer. We provide an open-source tool and evaluate it by constructing a local event platform's business model development method. "}],"publication":"Enterprise, Business-Process and Information Systems Modeling","user_id":"47208","ddc":["000"],"_id":"21639","publisher":"Springer","has_accepted_license":"1","status":"public","oa":"1","project":[{"_id":"1","name":"SFB 901"},{"name":"SFB 901 - Project Area C","_id":"4"},{"_id":"17","name":"SFB 901 - Subproject C5"}],"citation":{"chicago":"Gottschalk, Sebastian, Enes Yigitbas, Alexander Nowosad, and Gregor Engels. “Situation-Specific Business Model Development Methods for Mobile App Developers.” In Enterprise, Business-Process and Information Systems Modeling. Springer, 2021. https://doi.org/10.1007/978-3-030-79186-5_17.","ama":"Gottschalk S, Yigitbas E, Nowosad A, Engels G. Situation-specific Business Model Development Methods for Mobile App Developers. In: Enterprise, Business-Process and Information Systems Modeling. Springer; 2021. doi:10.1007/978-3-030-79186-5_17","short":"S. Gottschalk, E. Yigitbas, A. Nowosad, G. Engels, in: Enterprise, Business-Process and Information Systems Modeling, Springer, 2021.","bibtex":"@inproceedings{Gottschalk_Yigitbas_Nowosad_Engels_2021, title={Situation-specific Business Model Development Methods for Mobile App Developers}, DOI={10.1007/978-3-030-79186-5_17}, booktitle={Enterprise, Business-Process and Information Systems Modeling}, publisher={Springer}, author={Gottschalk, Sebastian and Yigitbas, Enes and Nowosad, Alexander and Engels, Gregor}, year={2021} }","apa":"Gottschalk, S., Yigitbas, E., Nowosad, A., & Engels, G. (2021). Situation-specific Business Model Development Methods for Mobile App Developers. In Enterprise, Business-Process and Information Systems Modeling. Springer. https://doi.org/10.1007/978-3-030-79186-5_17","mla":"Gottschalk, Sebastian, et al. “Situation-Specific Business Model Development Methods for Mobile App Developers.” Enterprise, Business-Process and Information Systems Modeling, Springer, 2021, doi:10.1007/978-3-030-79186-5_17.","ieee":"S. Gottschalk, E. Yigitbas, A. Nowosad, and G. Engels, “Situation-specific Business Model Development Methods for Mobile App Developers,” in Enterprise, Business-Process and Information Systems Modeling, 2021."},"file_date_updated":"2021-07-20T16:20:15Z"},{"oa":"1","quality_controlled":"1","citation":{"mla":"Warkulat, Sonja, et al. “COVID-19 Reporting and Willingness to Pay for Leisure Activities.” Covid Economics, no. 83, CEPR Press, 2021, pp. 183–205.","ama":"Warkulat S, Krull S, Ortmann R, Klocke N, Pelster M. COVID-19 reporting and willingness to pay for leisure activities. Covid Economics. 2021;(83):183-205.","bibtex":"@article{Warkulat_Krull_Ortmann_Klocke_Pelster_2021, title={COVID-19 reporting and willingness to pay for leisure activities}, number={83}, journal={Covid Economics}, publisher={CEPR Press}, author={Warkulat, Sonja and Krull, Sebastian and Ortmann, Regina and Klocke, Nina and Pelster, Matthias}, year={2021}, pages={183–205} }","apa":"Warkulat, S., Krull, S., Ortmann, R., Klocke, N., & Pelster, M. (2021). COVID-19 reporting and willingness to pay for leisure activities. Covid Economics, 83, 183–205.","ieee":"S. Warkulat, S. Krull, R. Ortmann, N. Klocke, and M. Pelster, “COVID-19 reporting and willingness to pay for leisure activities,” Covid Economics, no. 83, pp. 183–205, 2021.","chicago":"Warkulat, Sonja, Sebastian Krull, Regina Ortmann, Nina Klocke, and Matthias Pelster. “COVID-19 Reporting and Willingness to Pay for Leisure Activities.” Covid Economics, no. 83 (2021): 183–205.","short":"S. Warkulat, S. Krull, R. Ortmann, N. Klocke, M. Pelster, Covid Economics (2021) 183–205."},"user_id":"67265","page":"183-205","publisher":"CEPR Press","_id":"22523","funded_apc":"1","status":"public","jel":["I10","I12","I18"],"type":"journal_article","keyword":["COVID-19 reporting","willingness to pay","willingness to accept"],"department":[{"_id":"186"},{"_id":"578"}],"date_created":"2021-07-02T09:30:36Z","abstract":[{"text":"The containment of COVID-19 critically hinges on individuals’ behavior. We investigate how individuals react to variations in COVID-19 reporting. Using a survey, we elicit individuals' perceived infection risk given various COVID-19 metrics (e.g., confirmed cases, reproduction rate, or case-fatality ratio). We proxy individuals' risk perception with their willingness to pay for the participation in everyday life and amusements events. We find that participants react to different COVID-19 metrics with varying sensitivity. We observe a saturation of sensitivity for several measures at critical limits used in the political discussion, making our results highly relevant for policy makers in their efforts to direct individuals to adhere to hygienic etiquette and social distancing guidelines.","lang":"eng"}],"issue":"83","publication":"Covid Economics","main_file_link":[{"open_access":"1","url":"https://cepr.org/file/11142/download?token=wXdlx51o"}],"language":[{"iso":"eng"}],"date_updated":"2022-01-06T06:55:36Z","article_type":"original","year":"2021","title":"COVID-19 reporting and willingness to pay for leisure activities","author":[{"last_name":"Warkulat","first_name":"Sonja","full_name":"Warkulat, Sonja","id":"67243"},{"full_name":"Krull, Sebastian","first_name":"Sebastian","last_name":"Krull","id":"84497"},{"id":"10020","full_name":"Ortmann, Regina","last_name":"Ortmann","first_name":"Regina"},{"first_name":"Nina","last_name":"Klocke","full_name":"Klocke, Nina","id":"51025"},{"first_name":"Matthias","orcid":" https://orcid.org/0000-0001-5740-2420","last_name":"Pelster","full_name":"Pelster, Matthias","id":"67265"}]},{"status":"public","title":"Towards Visualizing and Simulating Business Models in Dynamic Platform Ecosystems ","year":"2021","conference":{"location":"Virtual Conference/Workshop","name":"29th European Conference on Information Systems (ECIS)"},"author":[{"id":"29951","last_name":"Vorbohle","first_name":"Christian","full_name":"Vorbohle, Christian"},{"full_name":"Gottschalk, Sebastian","first_name":"Sebastian","last_name":"Gottschalk","id":"47208"}],"date_updated":"2022-01-06T06:55:12Z","publication_status":"accepted","language":[{"iso":"eng"}],"_id":"21727","publisher":"AIS","user_id":"47208","publication":"Proceedings of the 29th European Conference on Information Systems (ECIS)","citation":{"mla":"Vorbohle, Christian, and Sebastian Gottschalk. “Towards Visualizing and Simulating Business Models in Dynamic Platform Ecosystems .” Proceedings of the 29th European Conference on Information Systems (ECIS), AIS.","bibtex":"@inproceedings{Vorbohle_Gottschalk, title={Towards Visualizing and Simulating Business Models in Dynamic Platform Ecosystems }, booktitle={Proceedings of the 29th European Conference on Information Systems (ECIS)}, publisher={AIS}, author={Vorbohle, Christian and Gottschalk, Sebastian} }","ama":"Vorbohle C, Gottschalk S. Towards Visualizing and Simulating Business Models in Dynamic Platform Ecosystems . In: Proceedings of the 29th European Conference on Information Systems (ECIS). AIS.","ieee":"C. Vorbohle and S. Gottschalk, “Towards Visualizing and Simulating Business Models in Dynamic Platform Ecosystems ,” in Proceedings of the 29th European Conference on Information Systems (ECIS), Virtual Conference/Workshop.","apa":"Vorbohle, C., & Gottschalk, S. (n.d.). Towards Visualizing and Simulating Business Models in Dynamic Platform Ecosystems . In Proceedings of the 29th European Conference on Information Systems (ECIS). Virtual Conference/Workshop: AIS.","chicago":"Vorbohle, Christian, and Sebastian Gottschalk. “Towards Visualizing and Simulating Business Models in Dynamic Platform Ecosystems .” In Proceedings of the 29th European Conference on Information Systems (ECIS). AIS, n.d.","short":"C. Vorbohle, S. Gottschalk, in: Proceedings of the 29th European Conference on Information Systems (ECIS), AIS, n.d."},"abstract":[{"lang":"eng","text":"Platform-based business models underlie the success of many of today’s largest, fastest-growing, and most disruptive companies. Despite the success of prominent examples, such as Uber and Airbnb, creating a profitable platform ecosystem presents a key challenge for many companies across all industries. Although research provides knowledge about platforms’ different value drivers (e.g., network effects), companies that seek to transform their current business model into a platform-based one lack an artifact to reduce knowledge boundaries, collaborate effectively, and cope with the complexities and dynamics of platform ecosystems. We address this challenge by developing two artifacts and combining research from variability modeling, business model dependencies, and system dynamics. This paper presents a design science research approach to develop the platform ecosystem modeling language and the platform ecosystem development tool that support researcher and practitioner by visualizing and simulating platform ecosystems. "}],"project":[{"name":"SFB 901","_id":"1"},{"_id":"4","name":"SFB 901 - Project Area C"},{"name":"SFB 901 - Subproject C5","_id":"17"}],"date_created":"2021-04-23T13:38:54Z","type":"conference","keyword":["Platform Ecosystems","Platform Ecosystem Modeling Language","Platform Ecosystem Development Tool","Business Models","Design Science"],"department":[{"_id":"66"},{"_id":"534"},{"_id":"276"}]},{"user_id":"47208","language":[{"iso":"eng"}],"_id":"25528","publisher":"Springer","date_updated":"2022-02-15T08:36:09Z","conference":{"location":"Turin","name":"22nd International Conference on Product-Focused Software Process Improvement","start_date":"2021-11-25","end_date":"2021-11-26"},"author":[{"id":"47208","full_name":"Gottschalk, Sebastian","last_name":"Gottschalk","first_name":"Sebastian"},{"id":"8447","first_name":"Enes","orcid":"0000-0002-5967-833X","last_name":"Yigitbas","full_name":"Yigitbas, Enes"},{"full_name":"Nowosad, Alexander","first_name":"Alexander","last_name":"Nowosad"},{"full_name":"Engels, Gregor","first_name":"Gregor","last_name":"Engels","id":"107"}],"title":"Situation- and Domain-specific Composition and Enactment of Business Model Development Methods","year":"2021","status":"public","department":[{"_id":"66"}],"keyword":["Business Model Development","Situational Method Engineering","Lean Development","Kanban Boards","Canvas Models"],"type":"book_chapter","date_created":"2021-10-05T20:11:09Z","project":[{"name":"SFB 901","_id":"1"},{"_id":"4","name":"SFB 901 - Project Area C"},{"_id":"17","name":"SFB 901 - Subproject C5"}],"abstract":[{"text":"Developing effective business models is a complex process for a company where several tasks (e.g., conduct customer interviews) need to be accomplished, and decisions (e.g., advertisement as a revenue stream) must be made. Here, domain experts can guide the choices of tasks and decisions with their knowledge. Nevertheless, this knowledge needs to match the situation of the company (e.g., financial resources) and the application domain of the product/service (e.g., mobile app) to reduce the risk of developing ineffective business models with low market penetration. This is not covered by one-size-fits-all development methods without tailoring before the enaction.\r\nTherefore, we conduct a design science study to create a situation-specific development approach for business models. Based on situational method engineering and our previous work in storing knowledge of methods and models in distinct repositories, this paper shows the situation-specific composition and enaction of business model development methods. First, the method engineer composes the development method out of both repositories based on the situational context. Second, the business developer enacts the method and develops the business model. We implement the approach in a tool and evaluate it with a industrial case study on mobile apps.","lang":"eng"}],"citation":{"bibtex":"@inbook{Gottschalk_Yigitbas_Nowosad_Engels_2021, title={Situation- and Domain-specific Composition and Enactment of Business Model Development Methods}, booktitle={Product-focused Software Process Improvement}, publisher={Springer}, author={Gottschalk, Sebastian and Yigitbas, Enes and Nowosad, Alexander and Engels, Gregor}, year={2021} }","ama":"Gottschalk S, Yigitbas E, Nowosad A, Engels G. Situation- and Domain-specific Composition and Enactment of Business Model Development Methods. In: Product-Focused Software Process Improvement. Springer; 2021.","mla":"Gottschalk, Sebastian, et al. “Situation- and Domain-Specific Composition and Enactment of Business Model Development Methods.” Product-Focused Software Process Improvement, Springer, 2021.","short":"S. Gottschalk, E. Yigitbas, A. Nowosad, G. Engels, in: Product-Focused Software Process Improvement, Springer, 2021.","chicago":"Gottschalk, Sebastian, Enes Yigitbas, Alexander Nowosad, and Gregor Engels. “Situation- and Domain-Specific Composition and Enactment of Business Model Development Methods.” In Product-Focused Software Process Improvement. Springer, 2021.","ieee":"S. Gottschalk, E. Yigitbas, A. Nowosad, and G. Engels, “Situation- and Domain-specific Composition and Enactment of Business Model Development Methods,” in Product-focused Software Process Improvement, Springer, 2021.","apa":"Gottschalk, S., Yigitbas, E., Nowosad, A., & Engels, G. (2021). Situation- and Domain-specific Composition and Enactment of Business Model Development Methods. In Product-focused Software Process Improvement. 22nd International Conference on Product-Focused Software Process Improvement, Turin. Springer."},"publication":"Product-focused Software Process Improvement"},{"volume":12986,"editor":[{"first_name":"Carlos","last_name":"Soares","full_name":"Soares, Carlos"},{"full_name":"Torgo, Luis","first_name":"Luis","last_name":"Torgo"}],"user_id":"48192","publisher":"Springer","_id":"27381","page":"166-180","conference":{"location":"Halifax, Canada","start_date":"2021-10-11","name":"24th International Conference on Discovery Science","end_date":"2021-10-13"},"status":"public","external_id":{"arxiv":["2104.08869"]},"quality_controlled":"1","citation":{"chicago":"Damke, Clemens, and Eyke Hüllermeier. “Ranking Structured Objects with Graph Neural Networks.” In Proceedings of The 24th International Conference on Discovery Science (DS 2021), edited by Carlos Soares and Luis Torgo, 12986:166–80. Lecture Notes in Computer Science. Springer, 2021. https://doi.org/10.1007/978-3-030-88942-5.","short":"C. Damke, E. Hüllermeier, in: C. Soares, L. Torgo (Eds.), Proceedings of The 24th International Conference on Discovery Science (DS 2021), Springer, 2021, pp. 166–180.","apa":"Damke, C., & Hüllermeier, E. (2021). Ranking Structured Objects with Graph Neural Networks. In C. Soares & L. Torgo (Eds.), Proceedings of The 24th International Conference on Discovery Science (DS 2021) (Vol. 12986, pp. 166–180). Springer. https://doi.org/10.1007/978-3-030-88942-5","ieee":"C. Damke and E. Hüllermeier, “Ranking Structured Objects with Graph Neural Networks,” in Proceedings of The 24th International Conference on Discovery Science (DS 2021), Halifax, Canada, 2021, vol. 12986, pp. 166–180, doi: 10.1007/978-3-030-88942-5.","ama":"Damke C, Hüllermeier E. Ranking Structured Objects with Graph Neural Networks. In: Soares C, Torgo L, eds. Proceedings of The 24th International Conference on Discovery Science (DS 2021). Vol 12986. Lecture Notes in Computer Science. Springer; 2021:166-180. doi:10.1007/978-3-030-88942-5","bibtex":"@inproceedings{Damke_Hüllermeier_2021, series={Lecture Notes in Computer Science}, title={Ranking Structured Objects with Graph Neural Networks}, volume={12986}, DOI={10.1007/978-3-030-88942-5}, booktitle={Proceedings of The 24th International Conference on Discovery Science (DS 2021)}, publisher={Springer}, author={Damke, Clemens and Hüllermeier, Eyke}, editor={Soares, Carlos and Torgo, Luis}, year={2021}, pages={166–180}, collection={Lecture Notes in Computer Science} }","mla":"Damke, Clemens, and Eyke Hüllermeier. “Ranking Structured Objects with Graph Neural Networks.” Proceedings of The 24th International Conference on Discovery Science (DS 2021), edited by Carlos Soares and Luis Torgo, vol. 12986, Springer, 2021, pp. 166–80, doi:10.1007/978-3-030-88942-5."},"doi":"10.1007/978-3-030-88942-5","series_title":"Lecture Notes in Computer Science","language":[{"iso":"eng"}],"intvolume":" 12986","publication_status":"published","date_updated":"2022-04-11T22:08:12Z","author":[{"first_name":"Clemens","orcid":"0000-0002-0455-0048","last_name":"Damke","full_name":"Damke, Clemens","id":"48192"},{"full_name":"Hüllermeier, Eyke","last_name":"Hüllermeier","first_name":"Eyke","id":"48129"}],"publication_identifier":{"issn":["0302-9743","1611-3349"],"isbn":["9783030889418","9783030889425"]},"year":"2021","title":"Ranking Structured Objects with Graph Neural Networks","department":[{"_id":"355"}],"keyword":["Graph-structured data","Graph neural networks","Preference learning","Learning to rank"],"type":"conference","date_created":"2021-11-11T14:15:18Z","abstract":[{"text":"Graph neural networks (GNNs) have been successfully applied in many structured data domains, with applications ranging from molecular property prediction to the analysis of social networks. Motivated by the broad applicability of GNNs, we propose the family of so-called RankGNNs, a combination of neural Learning to Rank (LtR) methods and GNNs. RankGNNs are trained with a set of pair-wise preferences between graphs, suggesting that one of them is preferred over the other. One practical application of this problem is drug screening, where an expert wants to find the most promising molecules in a large collection of drug candidates. We empirically demonstrate that our proposed pair-wise RankGNN approach either significantly outperforms or at least matches the ranking performance of the naive point-wise baseline approach, in which the LtR problem is solved via GNN-based graph regression.","lang":"eng"}],"publication":"Proceedings of The 24th International Conference on Discovery Science (DS 2021)"},{"page":"557-573","publisher":"Informa UK Limited","_id":"29216","user_id":"89037","volume":63,"status":"public","citation":{"bibtex":"@article{Schönhärl_2021, title={Why does a prestigious emission house emit a loan for a peripheral state? The house of Rothschild and the Greek guaranteed loan of 1833}, volume={63}, DOI={10.1080/00076791.2019.1593373}, number={4}, journal={Business History}, publisher={Informa UK Limited}, author={Schönhärl, Korinna}, year={2021}, pages={557–573} }","ama":"Schönhärl K. Why does a prestigious emission house emit a loan for a peripheral state? The house of Rothschild and the Greek guaranteed loan of 1833. Business History. 2021;63(4):557-573. doi:10.1080/00076791.2019.1593373","mla":"Schönhärl, Korinna. “Why Does a Prestigious Emission House Emit a Loan for a Peripheral State? The House of Rothschild and the Greek Guaranteed Loan of 1833.” Business History, vol. 63, no. 4, Informa UK Limited, 2021, pp. 557–73, doi:10.1080/00076791.2019.1593373.","chicago":"Schönhärl, Korinna. “Why Does a Prestigious Emission House Emit a Loan for a Peripheral State? The House of Rothschild and the Greek Guaranteed Loan of 1833.” Business History 63, no. 4 (2021): 557–73. https://doi.org/10.1080/00076791.2019.1593373.","short":"K. Schönhärl, Business History 63 (2021) 557–573.","ieee":"K. Schönhärl, “Why does a prestigious emission house emit a loan for a peripheral state? The house of Rothschild and the Greek guaranteed loan of 1833,” Business History, vol. 63, no. 4, pp. 557–573, 2021, doi: 10.1080/00076791.2019.1593373.","apa":"Schönhärl, K. (2021). Why does a prestigious emission house emit a loan for a peripheral state? The house of Rothschild and the Greek guaranteed loan of 1833. Business History, 63(4), 557–573. https://doi.org/10.1080/00076791.2019.1593373"},"quality_controlled":"1","language":[{"iso":"eng"}],"doi":"10.1080/00076791.2019.1593373","year":"2021","title":"Why does a prestigious emission house emit a loan for a peripheral state? The house of Rothschild and the Greek guaranteed loan of 1833","author":[{"id":"89037","full_name":"Schönhärl, Korinna","first_name":"Korinna","orcid":"0000-0002-7967-3261","last_name":"Schönhärl"}],"publication_identifier":{"issn":["0007-6791","1743-7938"]},"publication_status":"published","date_updated":"2022-01-18T10:13:13Z","intvolume":" 63","date_created":"2022-01-11T08:06:22Z","keyword":["History","Business","Management and Accounting (miscellaneous)","Business and International Management"],"type":"journal_article","department":[{"_id":"445"}],"issue":"4","publication":"Business History","abstract":[{"text":"How did bankers make their investment decisions, for example to issue a state loan for a peripheral country? This in-depth case study investigates the question of the Greek loan of 1833, issued by Rothschilds. The main interest is to reconstruct James de Rothschild’s risk perception and decision making process, expressed in the argumentation vis-à-vis his family. The significance of the guarantee of the protecting powers, which was without precedent, is considered by James as well as the competitive situation on the bond market, the relationship of the Rothschilds with leading politicians of the time, and the special significance of Greece in the period of intensive European philhellenism. The paper argues that in-depth studies of bankers’ risk perception are necessary to illuminate the complexity of their decision-making.","lang":"eng"}]},{"volume":117,"user_id":"79910","_id":"29098","page":"154-193","status":"public","citation":{"ieee":"M. Goller and S. Ziegler, “Berufswahlmotivation angehender Wirtschaftspädagog*innen: Validierung des FIT-Choice-Ansatzes und Exploration der Gründe für das Studium der Wirtschaftspädagogik,” Zeitschrift für Berufsund Wirtschaftspädagogik, vol. 117, no. 2, pp. 154–193, 2021, doi: 10.25162/zbw-2021-0008.","apa":"Goller, M., & Ziegler, S. (2021). Berufswahlmotivation angehender Wirtschaftspädagog*innen: Validierung des FIT-Choice-Ansatzes und Exploration der Gründe für das Studium der Wirtschaftspädagogik. Zeitschrift für Berufsund Wirtschaftspädagogik, 117(2), 154–193. https://doi.org/10.25162/zbw-2021-0008","mla":"Goller, Michael, and Simone Ziegler. “Berufswahlmotivation angehender Wirtschaftspädagog*innen: Validierung des FIT-Choice-Ansatzes und Exploration der Gründe für das Studium der Wirtschaftspädagogik.” Zeitschrift für Berufsund Wirtschaftspädagogik, vol. 117, no. 2, 2021, pp. 154–93, doi:10.25162/zbw-2021-0008.","bibtex":"@article{Goller_Ziegler_2021, title={Berufswahlmotivation angehender Wirtschaftspädagog*innen: Validierung des FIT-Choice-Ansatzes und Exploration der Gründe für das Studium der Wirtschaftspädagogik}, volume={117}, DOI={10.25162/zbw-2021-0008}, number={2}, journal={Zeitschrift für Berufsund Wirtschaftspädagogik}, author={Goller, Michael and Ziegler, Simone}, year={2021}, pages={154–193} }","chicago":"Goller, Michael, and Simone Ziegler. “Berufswahlmotivation angehender Wirtschaftspädagog*innen: Validierung des FIT-Choice-Ansatzes und Exploration der Gründe für das Studium der Wirtschaftspädagogik.” Zeitschrift für Berufsund Wirtschaftspädagogik 117, no. 2 (2021): 154–93. https://doi.org/10.25162/zbw-2021-0008.","short":"M. Goller, S. Ziegler, Zeitschrift für Berufsund Wirtschaftspädagogik 117 (2021) 154–193.","ama":"Goller M, Ziegler S. Berufswahlmotivation angehender Wirtschaftspädagog*innen: Validierung des FIT-Choice-Ansatzes und Exploration der Gründe für das Studium der Wirtschaftspädagogik. Zeitschrift für Berufsund Wirtschaftspädagogik. 2021;117(2):154-193. doi:10.25162/zbw-2021-0008"},"doi":"10.25162/zbw-2021-0008","language":[{"iso":"ger"}],"intvolume":" 117","date_updated":"2022-02-03T13:29:36Z","publication_status":"published","author":[{"full_name":"Goller, Michael","orcid":"0000-0002-2820-9178","last_name":"Goller","first_name":"Michael","id":"30984"},{"first_name":"Simone","last_name":"Ziegler","full_name":"Ziegler, Simone"}],"publication_identifier":{"issn":["0172-2875"]},"title":"Berufswahlmotivation angehender Wirtschaftspädagog*innen: Validierung des FIT-Choice-Ansatzes und Exploration der Gründe für das Studium der Wirtschaftspädagogik","year":"2021","department":[{"_id":"452"}],"type":"journal_article","keyword":["Berufswahl","Motivation","Wirtschaftspädagogik","Berufliche Bildung","FIT-Choice","Lehramt","Career Choice","Business","Education","VET","FIT-Choice","Teacher Education"],"date_created":"2021-12-22T16:50:32Z","abstract":[{"text":"National und international ist in den letzten Jahren ein vergrößertes Interesse an der Erforschung der Berufswahlmotivation von Studierenden des allgemeinen Lehramtes zu beobachten. Auch in der Wirtschaftspädagogik hat die empirische Auseinandersetzung mit den Beweggründen der Studien- und Berufswahl eine gewisse Tradition. Gleichzeitig muss bemängelt werden, dass die existierenden Untersuchungen einerseits bisher keine an die nationale und internationale Forschung anschlussfähigen Erhebungsinstrumente benutzten und andererseits regional nur einzelne Hochschulstandorte berücksichtigten. Die hier berichtete Studie nimmt sich dieses Forschungsdesiderates an. Hierzu wurden 879 Studierende der Wirtschaftspädagogik an zwölf deutschen Studienstandorten mit einem standardisierten Fragebogen, basierend auf dem bereits gut etablierten FIT-Choice-Ansatz, befragt. Auf Basis dieser Stichprobe werden folgende Forschungsfragen beantwortet: (1) Inwiefern eignet sich das FIT-Choice-Instrumentarium auch für Untersuchungen von Studierenden der Wirtschaftspädagogik?, (2) Welche Motive sowie Vorstellungen vom späteren Beruf liegen der Berufswahl der befragten Studierenden der Wirtschaftspädagogik zugrunde? und (3) Inwiefern unterscheiden sich die Berufswahlmotive sowie die Vorstellungen des späteren Berufs der befragten Wirtschaftspädagogikstudierenden in Hinblick auf das Geschlecht, eine vorherige Berufsausbildung sowie den späteren Berufswunsch? Die Validierung zeigt, dass sich der FIT-Choice-Ansatz größtenteils gut eignet, um auch Studierende der Wirtschaftspädagogik zu untersuchen. Darüber hinaus geben die Befunde vertiefte Einblicke in die Berufswahlmotivation angehender Wirtschaftspädagog*innen (z. B. hohe Relevanz des polyvalenten Studiencharakters).","lang":"ger"}],"publication":"Zeitschrift für Berufsund Wirtschaftspädagogik","issue":"2"},{"page":"2137-2172","_id":"48520","publisher":"Informa UK Limited","user_id":"100407","volume":34,"status":"public","citation":{"short":"S. Hubner-Benz, B. Rudic, M. Baum, The International Journal of Human Resource Management 34 (2021) 2137–2172.","chicago":"Hubner-Benz, Sylvia, Biljana Rudic, and Matthias Baum. “How Entrepreneur’s Leadership Behavior and Demographics Shape Applicant Attraction to New Ventures: The Role of Stereotypes.” The International Journal of Human Resource Management 34, no. 11 (2021): 2137–72. https://doi.org/10.1080/09585192.2021.1893785.","ieee":"S. Hubner-Benz, B. Rudic, and M. Baum, “How entrepreneur’s leadership behavior and demographics shape applicant attraction to new ventures: the role of stereotypes,” The International Journal of Human Resource Management, vol. 34, no. 11, pp. 2137–2172, 2021, doi: 10.1080/09585192.2021.1893785.","apa":"Hubner-Benz, S., Rudic, B., & Baum, M. (2021). How entrepreneur’s leadership behavior and demographics shape applicant attraction to new ventures: the role of stereotypes. The International Journal of Human Resource Management, 34(11), 2137–2172. https://doi.org/10.1080/09585192.2021.1893785","bibtex":"@article{Hubner-Benz_Rudic_Baum_2021, title={How entrepreneur’s leadership behavior and demographics shape applicant attraction to new ventures: the role of stereotypes}, volume={34}, DOI={10.1080/09585192.2021.1893785}, number={11}, journal={The International Journal of Human Resource Management}, publisher={Informa UK Limited}, author={Hubner-Benz, Sylvia and Rudic, Biljana and Baum, Matthias}, year={2021}, pages={2137–2172} }","ama":"Hubner-Benz S, Rudic B, Baum M. How entrepreneur’s leadership behavior and demographics shape applicant attraction to new ventures: the role of stereotypes. The International Journal of Human Resource Management. 2021;34(11):2137-2172. doi:10.1080/09585192.2021.1893785","mla":"Hubner-Benz, Sylvia, et al. “How Entrepreneur’s Leadership Behavior and Demographics Shape Applicant Attraction to New Ventures: The Role of Stereotypes.” The International Journal of Human Resource Management, vol. 34, no. 11, Informa UK Limited, 2021, pp. 2137–72, doi:10.1080/09585192.2021.1893785."},"language":[{"iso":"eng"}],"doi":"10.1080/09585192.2021.1893785","year":"2021","title":"How entrepreneur’s leadership behavior and demographics shape applicant attraction to new ventures: the role of stereotypes","publication_identifier":{"issn":["0958-5192","1466-4399"]},"author":[{"id":"100407","full_name":"Hubner-Benz, Sylvia","last_name":"Hubner-Benz","first_name":"Sylvia"},{"last_name":"Rudic","first_name":"Biljana","full_name":"Rudic, Biljana"},{"last_name":"Baum","first_name":"Matthias","full_name":"Baum, Matthias"}],"date_updated":"2023-10-27T12:47:49Z","publication_status":"published","intvolume":" 34","date_created":"2023-10-27T12:47:34Z","type":"journal_article","keyword":["Management of Technology and Innovation","Organizational Behavior and Human Resource Management","Strategy and Management","Business and International Management","Industrial relations"],"issue":"11","publication":"The International Journal of Human Resource Management"},{"intvolume":" 59","date_updated":"2023-10-27T12:43:57Z","publication_status":"published","author":[{"first_name":"Sylvia","last_name":"Hubner-Benz","full_name":"Hubner-Benz, Sylvia","id":"100407"},{"last_name":"Most","first_name":"Fabian","full_name":"Most, Fabian"},{"first_name":"Jochen","last_name":"Wirtz","full_name":"Wirtz, Jochen"},{"first_name":"Christine","last_name":"Auer","full_name":"Auer, Christine"}],"publication_identifier":{"issn":["0921-898X","1573-0913"]},"title":"Narratives in entrepreneurial ecosystems: drivers of effectuation versus causation","year":"2021","doi":"10.1007/s11187-021-00531-3","language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"This paper introduces narratives in entrepreneurial ecosystems as drivers of effectuation vs. causation. Drawing on 43 interviews with successful players in Silicon Valley, Munich, and Singapore, we found ecosystem-specific narratives indicate what is common, appropriate, and successful in each ecosystem, and these narratives encourage either effectuation or causation. Our findings indicate that the narratives in the ecosystem in Silicon Valley facilitate effectuation, in Munich causation, and in Singapore a cautious balance of both. Our research suggests that narratives can explain mechanisms how ecosystems influence entrepreneurship: the national culture, market characteristics, available resources, and networks in an ecosystem spark ecosystem-specific narratives, which in turn shape tendencies towards effectuation and causation. Thereby, we introduce a new ecosystem-focused perspective on predictors of effectuation and causation."}],"publication":"Small Business Economics","issue":"1","type":"journal_article","keyword":["Economics and Econometrics","General Business","Management and Accounting"],"date_created":"2023-10-27T12:35:34Z","status":"public","volume":59,"user_id":"100407","publisher":"Springer Science and Business Media LLC","_id":"48514","page":"211-242","citation":{"mla":"Hubner-Benz, Sylvia, et al. “Narratives in Entrepreneurial Ecosystems: Drivers of Effectuation versus Causation.” Small Business Economics, vol. 59, no. 1, Springer Science and Business Media LLC, 2021, pp. 211–42, doi:10.1007/s11187-021-00531-3.","bibtex":"@article{Hubner-Benz_Most_Wirtz_Auer_2021, title={Narratives in entrepreneurial ecosystems: drivers of effectuation versus causation}, volume={59}, DOI={10.1007/s11187-021-00531-3}, number={1}, journal={Small Business Economics}, publisher={Springer Science and Business Media LLC}, author={Hubner-Benz, Sylvia and Most, Fabian and Wirtz, Jochen and Auer, Christine}, year={2021}, pages={211–242} }","ama":"Hubner-Benz S, Most F, Wirtz J, Auer C. Narratives in entrepreneurial ecosystems: drivers of effectuation versus causation. Small Business Economics. 2021;59(1):211-242. doi:10.1007/s11187-021-00531-3","ieee":"S. Hubner-Benz, F. Most, J. Wirtz, and C. Auer, “Narratives in entrepreneurial ecosystems: drivers of effectuation versus causation,” Small Business Economics, vol. 59, no. 1, pp. 211–242, 2021, doi: 10.1007/s11187-021-00531-3.","apa":"Hubner-Benz, S., Most, F., Wirtz, J., & Auer, C. (2021). Narratives in entrepreneurial ecosystems: drivers of effectuation versus causation. Small Business Economics, 59(1), 211–242. https://doi.org/10.1007/s11187-021-00531-3","short":"S. Hubner-Benz, F. Most, J. Wirtz, C. Auer, Small Business Economics 59 (2021) 211–242.","chicago":"Hubner-Benz, Sylvia, Fabian Most, Jochen Wirtz, and Christine Auer. “Narratives in Entrepreneurial Ecosystems: Drivers of Effectuation versus Causation.” Small Business Economics 59, no. 1 (2021): 211–42. https://doi.org/10.1007/s11187-021-00531-3."}},{"quality_controlled":"1","citation":{"ama":"Winkler C, Fust A, Jenert T. From entrepreneurial experience to expertise: A self-regulated learning perspective. Journal of Small Business Management. 2021;61(4):2071-2096. doi:10.1080/00472778.2021.1883041","bibtex":"@article{Winkler_Fust_Jenert_2021, title={From entrepreneurial experience to expertise: A self-regulated learning perspective}, volume={61}, DOI={10.1080/00472778.2021.1883041}, number={4}, journal={Journal of Small Business Management}, publisher={Informa UK Limited}, author={Winkler, Christoph and Fust, Alexander and Jenert, Tobias}, year={2021}, pages={2071–2096} }","mla":"Winkler, Christoph, et al. “From Entrepreneurial Experience to Expertise: A Self-Regulated Learning Perspective.” Journal of Small Business Management, vol. 61, no. 4, Informa UK Limited, 2021, pp. 2071–96, doi:10.1080/00472778.2021.1883041.","chicago":"Winkler, Christoph, Alexander Fust, and Tobias Jenert. “From Entrepreneurial Experience to Expertise: A Self-Regulated Learning Perspective.” Journal of Small Business Management 61, no. 4 (2021): 2071–96. https://doi.org/10.1080/00472778.2021.1883041.","short":"C. Winkler, A. Fust, T. Jenert, Journal of Small Business Management 61 (2021) 2071–2096.","apa":"Winkler, C., Fust, A., & Jenert, T. (2021). From entrepreneurial experience to expertise: A self-regulated learning perspective. Journal of Small Business Management, 61(4), 2071–2096. https://doi.org/10.1080/00472778.2021.1883041","ieee":"C. Winkler, A. Fust, and T. Jenert, “From entrepreneurial experience to expertise: A self-regulated learning perspective,” Journal of Small Business Management, vol. 61, no. 4, pp. 2071–2096, 2021, doi: 10.1080/00472778.2021.1883041."},"status":"public","user_id":"71994","volume":61,"page":"2071-2096","_id":"52705","publisher":"Informa UK Limited","publication":"Journal of Small Business Management","issue":"4","type":"journal_article","keyword":["Management of Technology and Innovation","Strategy and Management","General Business","Management and Accounting"],"department":[{"_id":"208"}],"date_created":"2024-03-21T13:29:23Z","publication_status":"published","date_updated":"2024-03-21T16:18:19Z","intvolume":" 61","year":"2021","title":"From entrepreneurial experience to expertise: A self-regulated learning perspective","author":[{"first_name":"Christoph","last_name":"Winkler","full_name":"Winkler, Christoph"},{"full_name":"Fust, Alexander","first_name":"Alexander","last_name":"Fust"},{"full_name":"Jenert, Tobias","last_name":"Jenert","first_name":"Tobias"}],"publication_identifier":{"issn":["0047-2778","1540-627X"]},"doi":"10.1080/00472778.2021.1883041","language":[{"iso":"eng"}]},{"citation":{"mla":"Beverungen, Daniel, et al. “Transforming into a Platform Provider: Strategic Options for Industrial Smart Service Providers.” Journal of Service Management, vol. 32, no. 4, Emerald Insight, 2021, pp. 507–32, doi:10.1108/JOSM-03-2020-0066.","apa":"Beverungen, D., Kundisch, D., & Wünderlich, N. (2021). Transforming into a Platform Provider: Strategic Options for Industrial Smart Service Providers. Journal of Service Management, 32(4), 507–532. https://doi.org/10.1108/JOSM-03-2020-0066","ieee":"D. Beverungen, D. Kundisch, and N. Wünderlich, “Transforming into a Platform Provider: Strategic Options for Industrial Smart Service Providers,” Journal of Service Management, vol. 32, no. 4, pp. 507–532, 2021, doi: 10.1108/JOSM-03-2020-0066.","short":"D. Beverungen, D. Kundisch, N. Wünderlich, Journal of Service Management 32 (2021) 507–532.","ama":"Beverungen D, Kundisch D, Wünderlich N. Transforming into a Platform Provider: Strategic Options for Industrial Smart Service Providers. Journal of Service Management. 2021;32(4):507-532. doi:10.1108/JOSM-03-2020-0066","chicago":"Beverungen, Daniel, Dennis Kundisch, and Nancy Wünderlich. “Transforming into a Platform Provider: Strategic Options for Industrial Smart Service Providers.” Journal of Service Management 32, no. 4 (2021): 507–32. https://doi.org/10.1108/JOSM-03-2020-0066.","bibtex":"@article{Beverungen_Kundisch_Wünderlich_2021, title={Transforming into a Platform Provider: Strategic Options for Industrial Smart Service Providers}, volume={32}, DOI={10.1108/JOSM-03-2020-0066}, number={4}, journal={Journal of Service Management}, publisher={Emerald Insight}, author={Beverungen, Daniel and Kundisch, Dennis and Wünderlich, Nancy}, year={2021}, pages={507–532} }"},"quality_controlled":"1","project":[{"_id":"1","grant_number":"160364472","name":"SFB 901"},{"_id":"4","name":"SFB 901 - Project Area C"},{"name":"SFB 901 - Subproject C5","_id":"17"}],"page":"507-532","publisher":"Emerald Insight","_id":"17860","user_id":"59677","ddc":["380"],"volume":32,"status":"public","date_created":"2020-08-12T12:12:36Z","type":"journal_article","keyword":["Smart service","Platform","Interdisciplinary research","Manufacturing company","Smart service provider","Platform economics","Information systems","Multi-sided markets","Business-to-business (B2B) markets"],"department":[{"_id":"276"},{"_id":"181"}],"issue":"4","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"}],"language":[{"iso":"eng"}],"doi":"10.1108/JOSM-03-2020-0066","year":"2021","title":"Transforming into a Platform Provider: Strategic Options for Industrial Smart Service Providers","author":[{"id":"59677","full_name":"Beverungen, Daniel","first_name":"Daniel","last_name":"Beverungen"},{"full_name":"Kundisch, Dennis","first_name":"Dennis","last_name":"Kundisch","id":"21117"},{"full_name":"Wünderlich, Nancy","first_name":"Nancy","last_name":"Wünderlich","id":"36392"}],"publication_identifier":{"issn":["507-532"]},"publication_status":"published","date_updated":"2024-04-18T12:46:37Z","article_type":"original","intvolume":" 32"},{"date_updated":"2023-01-18T07:57:16Z","publication_status":"published","intvolume":" 32","title":"The rise of artificial intelligence – understanding the AI identity threat at the workplace","year":"2021","publication_identifier":{"issn":["1019-6781","1422-8890"]},"author":[{"last_name":"Mirbabaie","first_name":"Milad","full_name":"Mirbabaie, Milad"},{"last_name":"Brünker","first_name":"Felix","full_name":"Brünker, Felix"},{"last_name":"Möllmann Frick","first_name":"Nicholas R. J.","full_name":"Möllmann Frick, Nicholas R. J."},{"full_name":"Stieglitz, Stefan","last_name":"Stieglitz","first_name":"Stefan"}],"doi":"10.1007/s12525-021-00496-x","language":[{"iso":"eng"}],"abstract":[{"text":"AbstractArtificial intelligence (AI) is being increasingly integrated into enterprises to foster collaboration within humanmachine teams and assist employees with work-related tasks. However, introducing AI may negatively impact employees’ identifications with their jobs as AI is expected to fundamentally change workplaces and professions, feeding into individuals’ fears of being replaced. To broaden the understanding of the AI identity threat, the findings of this study reveal three central predictors for AI identity threat in the workplace: changes to work, loss of status position, and AI identity predicting AI identity threat in the workplace. This study enriches information systems literature by extending our understanding of collaboration with AI in the workplace to drive future research in this field. Researchers and practitioners understand the implications of employees’ identity when collaborating with AI and comprehend which factors are relevant when introducing AI in the workplace.","lang":"eng"}],"publication":"Electronic Markets","issue":"1","type":"journal_article","keyword":["Management of Technology and Innovation","Marketing","Computer Science Applications","Economics and Econometrics","Business and International Management"],"date_created":"2023-01-17T15:24:18Z","status":"public","user_id":"80546","volume":32,"page":"73-99","_id":"37144","publisher":"Springer Science and Business Media LLC","citation":{"ieee":"M. Mirbabaie, F. Brünker, N. R. J. Möllmann Frick, and S. Stieglitz, “The rise of artificial intelligence – understanding the AI identity threat at the workplace,” Electronic Markets, vol. 32, no. 1, pp. 73–99, 2021, doi: 10.1007/s12525-021-00496-x.","apa":"Mirbabaie, M., Brünker, F., Möllmann Frick, N. R. J., & Stieglitz, S. (2021). The rise of artificial intelligence – understanding the AI identity threat at the workplace. Electronic Markets, 32(1), 73–99. https://doi.org/10.1007/s12525-021-00496-x","short":"M. Mirbabaie, F. Brünker, N.R.J. Möllmann Frick, S. Stieglitz, Electronic Markets 32 (2021) 73–99.","chicago":"Mirbabaie, Milad, Felix Brünker, Nicholas R. J. Möllmann Frick, and Stefan Stieglitz. “The Rise of Artificial Intelligence – Understanding the AI Identity Threat at the Workplace.” Electronic Markets 32, no. 1 (2021): 73–99. https://doi.org/10.1007/s12525-021-00496-x.","mla":"Mirbabaie, Milad, et al. “The Rise of Artificial Intelligence – Understanding the AI Identity Threat at the Workplace.” Electronic Markets, vol. 32, no. 1, Springer Science and Business Media LLC, 2021, pp. 73–99, doi:10.1007/s12525-021-00496-x.","bibtex":"@article{Mirbabaie_Brünker_Möllmann Frick_Stieglitz_2021, title={The rise of artificial intelligence – understanding the AI identity threat at the workplace}, volume={32}, DOI={10.1007/s12525-021-00496-x}, number={1}, journal={Electronic Markets}, publisher={Springer Science and Business Media LLC}, author={Mirbabaie, Milad and Brünker, Felix and Möllmann Frick, Nicholas R. J. and Stieglitz, Stefan}, year={2021}, pages={73–99} }","ama":"Mirbabaie M, Brünker F, Möllmann Frick NRJ, Stieglitz S. The rise of artificial intelligence – understanding the AI identity threat at the workplace. Electronic Markets. 2021;32(1):73-99. doi:10.1007/s12525-021-00496-x"}},{"status":"public","user_id":"18949","volume":15,"page":"370-377","_id":"44899","publisher":"Cambridge University Press (CUP)","project":[{"name":"SFB 901: SFB 901","_id":"1"},{"_id":"2","name":"SFB 901 - A: SFB 901 - Project Area A"},{"name":"SFB 901 - A4: SFB 901 - Subproject A4","_id":"8"}],"citation":{"apa":"Frick, B. (2021). The Legacy of Gurus: The Impact of Armin Diel and Joel Payne on Winery Ratings in Germany. Journal of Wine Economics, 15(4), 370–377. https://doi.org/10.1017/jwe.2020.36","ieee":"B. Frick, “The Legacy of Gurus: The Impact of Armin Diel and Joel Payne on Winery Ratings in Germany,” Journal of Wine Economics, vol. 15, no. 4, pp. 370–377, 2021, doi: 10.1017/jwe.2020.36.","short":"B. Frick, Journal of Wine Economics 15 (2021) 370–377.","chicago":"Frick, Bernd. “The Legacy of Gurus: The Impact of Armin Diel and Joel Payne on Winery Ratings in Germany.” Journal of Wine Economics 15, no. 4 (2021): 370–77. https://doi.org/10.1017/jwe.2020.36.","mla":"Frick, Bernd. “The Legacy of Gurus: The Impact of Armin Diel and Joel Payne on Winery Ratings in Germany.” Journal of Wine Economics, vol. 15, no. 4, Cambridge University Press (CUP), 2021, pp. 370–77, doi:10.1017/jwe.2020.36.","ama":"Frick B. The Legacy of Gurus: The Impact of Armin Diel and Joel Payne on Winery Ratings in Germany. Journal of Wine Economics. 2021;15(4):370-377. doi:10.1017/jwe.2020.36","bibtex":"@article{Frick_2021, title={The Legacy of Gurus: The Impact of Armin Diel and Joel Payne on Winery Ratings in Germany}, volume={15}, DOI={10.1017/jwe.2020.36}, number={4}, journal={Journal of Wine Economics}, publisher={Cambridge University Press (CUP)}, author={Frick, Bernd}, year={2021}, pages={370–377} }"},"publication_status":"published","date_updated":"2023-05-16T16:02:24Z","intvolume":" 15","title":"The Legacy of Gurus: The Impact of Armin Diel and Joel Payne on Winery Ratings in Germany","year":"2021","author":[{"first_name":"Bernd","last_name":"Frick","full_name":"Frick, Bernd","id":"16019"}],"publication_identifier":{"issn":["1931-4361","1931-437X"]},"doi":"10.1017/jwe.2020.36","language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"AbstractChanges in winery ratings in leading wine guides, that is, improvements as well as deteriorations, are typically attributed to corresponding changes in the quality of the wines produced by the respective winery. What remains unexplored in this context is changes in editorship and/or changes in the composition of the wine tasting teams working for the respective guide. Using data from two particularly prestigious German wine guides (Gault Millau and Vinum), this paper shows that these latter changes have a rather small, yet statistically significant impact on changes in winery ratings. Thus, consumers are well-advised to consider these changes before making their purchasing decision. (JEL Classifications: L21, M30, Q13)"}],"publication":"Journal of Wine Economics","issue":"4","type":"journal_article","keyword":["Horticulture","General Business","Management and Accounting","Food Science"],"date_created":"2023-05-16T16:00:09Z"},{"date_created":"2022-01-10T11:51:46Z","keyword":["Analog to digital converters","Extinction ratios","Grating couplers","Modulation","Modulators","Phase shift"],"type":"conference","department":[{"_id":"58"},{"_id":"230"}],"publication":"OSA Advanced Photonics Congress 2021","citation":{"chicago":"Kress, Christian, Karanveer Singh, Tobias Schwabe, Stefan Preußler, Thomas Schneider, and J. Christoph Scheytt. “High Modulation Efficiency Segmented Mach-Zehnder Modulator Monolithically Integrated with Linear Driver in 0.25 \\textmum BiCMOS Technology.” In OSA Advanced Photonics Congress 2021, IW1B.1. Optical Society of America, 2021. https://doi.org/10.1364/IPRSN.2021.IW1B.1.","short":"C. Kress, K. Singh, T. Schwabe, S. Preußler, T. Schneider, J.C. Scheytt, in: OSA Advanced Photonics Congress 2021, Optical Society of America, 2021, p. IW1B.1.","apa":"Kress, C., Singh, K., Schwabe, T., Preußler, S., Schneider, T., & Scheytt, J. C. (2021). High Modulation Efficiency Segmented Mach-Zehnder Modulator Monolithically Integrated with Linear Driver in 0.25 \\textmum BiCMOS Technology. OSA Advanced Photonics Congress 2021, IW1B.1. https://doi.org/10.1364/IPRSN.2021.IW1B.1","ieee":"C. Kress, K. Singh, T. Schwabe, S. Preußler, T. Schneider, and J. C. Scheytt, “High Modulation Efficiency Segmented Mach-Zehnder Modulator Monolithically Integrated with Linear Driver in 0.25 \\textmum BiCMOS Technology,” in OSA Advanced Photonics Congress 2021, 2021, p. IW1B.1, doi: 10.1364/IPRSN.2021.IW1B.1.","ama":"Kress C, Singh K, Schwabe T, Preußler S, Schneider T, Scheytt JC. High Modulation Efficiency Segmented Mach-Zehnder Modulator Monolithically Integrated with Linear Driver in 0.25 \\textmum BiCMOS Technology. In: OSA Advanced Photonics Congress 2021. Optical Society of America; 2021:IW1B.1. doi:10.1364/IPRSN.2021.IW1B.1","bibtex":"@inproceedings{Kress_Singh_Schwabe_Preußler_Schneider_Scheytt_2021, title={High Modulation Efficiency Segmented Mach-Zehnder Modulator Monolithically Integrated with Linear Driver in 0.25 \\textmum BiCMOS Technology}, DOI={10.1364/IPRSN.2021.IW1B.1}, booktitle={OSA Advanced Photonics Congress 2021}, publisher={Optical Society of America}, author={Kress, Christian and Singh, Karanveer and Schwabe, Tobias and Preußler, Stefan and Schneider, Thomas and Scheytt, J. Christoph}, year={2021}, pages={IW1B.1} }","mla":"Kress, Christian, et al. “High Modulation Efficiency Segmented Mach-Zehnder Modulator Monolithically Integrated with Linear Driver in 0.25 \\textmum BiCMOS Technology.” OSA Advanced Photonics Congress 2021, Optical Society of America, 2021, p. IW1B.1, doi:10.1364/IPRSN.2021.IW1B.1."},"related_material":{"link":[{"relation":"confirmation","url":"https://www.osapublishing.org/abstract.cfm?uri=IPRSN-2021-IW1B.1"}]},"abstract":[{"text":"We present a monolithically integrated electronic-photonic Mach-Zehnder modulator with a linear, segmented driver on the same silicon substrate. As metric for the modulation efficiency, the external V$\\pi$ is hereby reduced to only 420 mV.","lang":"eng"}],"project":[{"name":"PONyDAC: PONyDAC II - Präziser Optischer Nyquist-Puls-Synthesizer DAC","grant_number":"403154102","_id":"302"}],"page":"IW1B.1","_id":"29203","language":[{"iso":"eng"}],"publisher":"Optical Society of America","user_id":"13256","doi":"10.1364/IPRSN.2021.IW1B.1","status":"public","year":"2021","title":"High Modulation Efficiency Segmented Mach-Zehnder Modulator Monolithically Integrated with Linear Driver in 0.25 \\textmum BiCMOS Technology","author":[{"first_name":"Christian","last_name":"Kress","full_name":"Kress, Christian","id":"13256"},{"full_name":"Singh, Karanveer","first_name":"Karanveer","last_name":"Singh"},{"last_name":"Schwabe","first_name":"Tobias","full_name":"Schwabe, Tobias","id":"39217"},{"first_name":"Stefan","last_name":"Preußler","full_name":"Preußler, Stefan"},{"first_name":"Thomas","last_name":"Schneider","full_name":"Schneider, Thomas"},{"orcid":"https://orcid.org/0000-0002-5950-6618","first_name":"J. Christoph","last_name":"Scheytt","full_name":"Scheytt, J. Christoph","id":"37144"}],"date_updated":"2023-06-16T06:54:55Z"},{"citation":{"chicago":"Kress, Christian, Meysam Bahmanian, Tobias Schwabe, and J. Christoph Scheytt. “Analysis of the Effects of Jitter, Relative Intensity Noise, and Nonlinearity on a Photonic Digital-to-Analog Converter Based on Optical Nyquist Pulse Synthesis.” Opt. Express 29, no. 15 (2021): 23671–23681. https://doi.org/10.1364/OE.427424.","short":"C. Kress, M. Bahmanian, T. Schwabe, J.C. Scheytt, Opt. Express 29 (2021) 23671–23681.","ieee":"C. Kress, M. Bahmanian, T. Schwabe, and J. C. Scheytt, “Analysis of the effects of jitter, relative intensity noise, and nonlinearity on a photonic digital-to-analog converter based on optical Nyquist pulse synthesis,” Opt. Express, vol. 29, no. 15, pp. 23671–23681, 2021, doi: 10.1364/OE.427424.","apa":"Kress, C., Bahmanian, M., Schwabe, T., & Scheytt, J. C. (2021). Analysis of the effects of jitter, relative intensity noise, and nonlinearity on a photonic digital-to-analog converter based on optical Nyquist pulse synthesis. Opt. Express, 29(15), 23671–23681. https://doi.org/10.1364/OE.427424","bibtex":"@article{Kress_Bahmanian_Schwabe_Scheytt_2021, title={Analysis of the effects of jitter, relative intensity noise, and nonlinearity on a photonic digital-to-analog converter based on optical Nyquist pulse synthesis}, volume={29}, DOI={10.1364/OE.427424}, number={15}, journal={Opt. Express}, publisher={OSA}, author={Kress, Christian and Bahmanian, Meysam and Schwabe, Tobias and Scheytt, J. Christoph}, year={2021}, pages={23671–23681} }","ama":"Kress C, Bahmanian M, Schwabe T, Scheytt JC. Analysis of the effects of jitter, relative intensity noise, and nonlinearity on a photonic digital-to-analog converter based on optical Nyquist pulse synthesis. Opt Express. 2021;29(15):23671–23681. doi:10.1364/OE.427424","mla":"Kress, Christian, et al. “Analysis of the Effects of Jitter, Relative Intensity Noise, and Nonlinearity on a Photonic Digital-to-Analog Converter Based on Optical Nyquist Pulse Synthesis.” Opt. Express, vol. 29, no. 15, OSA, 2021, pp. 23671–23681, doi:10.1364/OE.427424."},"project":[{"name":"PONyDAC: PONyDAC II - Präziser Optischer Nyquist-Puls-Synthesizer DAC","grant_number":"403154102","_id":"302"},{"grant_number":"13N14882","_id":"299","name":"NyPhE: NyPhE - Nyquist Silicon Photonics Engine"}],"status":"public","page":"23671–23681","publisher":"OSA","_id":"29204","user_id":"13256","volume":29,"publication":"Opt. Express","issue":"15","abstract":[{"lang":"eng","text":"An analysis of an optical Nyquist pulse synthesizer using Mach-Zehnder modulators is presented. The analysis allows to predict the upper limit of the effective number of bits of this type of photonic digital-to-analog converter. The analytical solution has been verified by means of electro-optic simulations. With this analysis the limiting factor for certain scenarios: relative intensity noise, distortions by driving the Mach-Zehnder modulator, or the signal generator phase noise can quickly be identified."}],"related_material":{"link":[{"url":"https://pubmed.ncbi.nlm.nih.gov/34614628/","relation":"confirmation"}]},"date_created":"2022-01-10T11:51:47Z","keyword":["Analog to digital converters","Diode lasers","Laser sources","Phase noise","Signal processing","Wavelength division multiplexers"],"type":"journal_article","department":[{"_id":"58"},{"_id":"230"}],"year":"2021","title":"Analysis of the effects of jitter, relative intensity noise, and nonlinearity on a photonic digital-to-analog converter based on optical Nyquist pulse synthesis","author":[{"id":"13256","full_name":"Kress, Christian","first_name":"Christian","last_name":"Kress"},{"full_name":"Bahmanian, Meysam","last_name":"Bahmanian","first_name":"Meysam","id":"69233"},{"id":"39217","full_name":"Schwabe, Tobias","last_name":"Schwabe","first_name":"Tobias"},{"full_name":"Scheytt, J. Christoph","first_name":"J. Christoph","last_name":"Scheytt","orcid":"https://orcid.org/0000-0002-5950-6618","id":"37144"}],"date_updated":"2023-06-16T06:56:27Z","intvolume":" 29","language":[{"iso":"eng"}],"doi":"10.1364/OE.427424"},{"issue":"1","publication":"Journal of the Academy of Marketing Science","extern":"1","abstract":[{"lang":"eng","text":"AbstractThis study explains how manufacturers tackle the critical managerial challenge of transforming a product-focused sales force to undertake solution selling. Through an application of configurational theory, the authors explain how individual and organizational conditions combine to determine salespeople’s engagement in solution selling. Multilevel, multisource data from the sales organization of a global supplier of building solutions represent input from salespeople (N = 184), solution champions (N = 23), and sales managers (N = 26). A fuzzy set qualitative comparative analysis reveals no single, optimal way to overcome transformation challenges. Rather, consistent with prior research, solution selling requires certain types of salespeople, because value-based selling is a necessary condition for successful engagement. Beyond this foundational condition, a heterogeneous sales force can be engaged, as long as the organization provides appropriate support that is tailored to individual salespersons’ needs. The findings affirm that this viable support can come from either sales managers or solution champions."}],"date_created":"2023-02-01T08:30:20Z","type":"journal_article","keyword":["Marketing","Economics and Econometrics","Business and International Management"],"department":[{"_id":"785"}],"year":"2021","title":"Engaging a product-focused sales force in solution selling: interplay of individual- and organizational-level conditions","publication_identifier":{"issn":["0092-0703","1552-7824"]},"author":[{"last_name":"Salonen","first_name":"Anna","full_name":"Salonen, Anna"},{"last_name":"Terho","first_name":"Harri","full_name":"Terho, Harri"},{"id":"3043","last_name":"Böhm","first_name":"Eva","orcid":"0000-0001-6053-1012","full_name":"Böhm, Eva"},{"full_name":"Virtanen, Ari","last_name":"Virtanen","first_name":"Ari"},{"first_name":"Risto","last_name":"Rajala","full_name":"Rajala, Risto"}],"publication_status":"published","date_updated":"2023-09-01T10:15:17Z","intvolume":" 49","language":[{"iso":"eng"}],"doi":"10.1007/s11747-020-00729-z","citation":{"ama":"Salonen A, Terho H, Böhm E, Virtanen A, Rajala R. Engaging a product-focused sales force in solution selling: interplay of individual- and organizational-level conditions. Journal of the Academy of Marketing Science. 2021;49(1):139-163. doi:10.1007/s11747-020-00729-z","bibtex":"@article{Salonen_Terho_Böhm_Virtanen_Rajala_2021, title={Engaging a product-focused sales force in solution selling: interplay of individual- and organizational-level conditions}, volume={49}, DOI={10.1007/s11747-020-00729-z}, number={1}, journal={Journal of the Academy of Marketing Science}, publisher={Springer Science and Business Media LLC}, author={Salonen, Anna and Terho, Harri and Böhm, Eva and Virtanen, Ari and Rajala, Risto}, year={2021}, pages={139–163} }","mla":"Salonen, Anna, et al. “Engaging a Product-Focused Sales Force in Solution Selling: Interplay of Individual- and Organizational-Level Conditions.” Journal of the Academy of Marketing Science, vol. 49, no. 1, Springer Science and Business Media LLC, 2021, pp. 139–63, doi:10.1007/s11747-020-00729-z.","chicago":"Salonen, Anna, Harri Terho, Eva Böhm, Ari Virtanen, and Risto Rajala. “Engaging a Product-Focused Sales Force in Solution Selling: Interplay of Individual- and Organizational-Level Conditions.” Journal of the Academy of Marketing Science 49, no. 1 (2021): 139–63. https://doi.org/10.1007/s11747-020-00729-z.","short":"A. Salonen, H. Terho, E. Böhm, A. Virtanen, R. Rajala, Journal of the Academy of Marketing Science 49 (2021) 139–163.","apa":"Salonen, A., Terho, H., Böhm, E., Virtanen, A., & Rajala, R. (2021). Engaging a product-focused sales force in solution selling: interplay of individual- and organizational-level conditions. Journal of the Academy of Marketing Science, 49(1), 139–163. https://doi.org/10.1007/s11747-020-00729-z","ieee":"A. Salonen, H. Terho, E. Böhm, A. Virtanen, and R. Rajala, “Engaging a product-focused sales force in solution selling: interplay of individual- and organizational-level conditions,” Journal of the Academy of Marketing Science, vol. 49, no. 1, pp. 139–163, 2021, doi: 10.1007/s11747-020-00729-z."},"status":"public","page":"139-163","_id":"41338","publisher":"Springer Science and Business Media LLC","user_id":"49063","volume":49},{"citation":{"mla":"Garnefeld, Ina, et al. “Online Reviews Generated through Product Testing: Can More Favorable Reviews Be Enticed with Free Products?” Journal of the Academy of Marketing Science, vol. 49, no. 4, Springer Science and Business Media LLC, 2021, pp. 703–22, doi:10.1007/s11747-021-00770-6.","ama":"Garnefeld I, Krah T, Böhm E, Gremler DD. Online reviews generated through product testing: can more favorable reviews be enticed with free products? Journal of the Academy of Marketing Science. 2021;49(4):703-722. doi:10.1007/s11747-021-00770-6","bibtex":"@article{Garnefeld_Krah_Böhm_Gremler_2021, title={Online reviews generated through product testing: can more favorable reviews be enticed with free products?}, volume={49}, DOI={10.1007/s11747-021-00770-6}, number={4}, journal={Journal of the Academy of Marketing Science}, publisher={Springer Science and Business Media LLC}, author={Garnefeld, Ina and Krah, Tabea and Böhm, Eva and Gremler, Dwayne D.}, year={2021}, pages={703–722} }","apa":"Garnefeld, I., Krah, T., Böhm, E., & Gremler, D. D. (2021). Online reviews generated through product testing: can more favorable reviews be enticed with free products? Journal of the Academy of Marketing Science, 49(4), 703–722. https://doi.org/10.1007/s11747-021-00770-6","ieee":"I. Garnefeld, T. Krah, E. Böhm, and D. D. Gremler, “Online reviews generated through product testing: can more favorable reviews be enticed with free products?,” Journal of the Academy of Marketing Science, vol. 49, no. 4, pp. 703–722, 2021, doi: 10.1007/s11747-021-00770-6.","chicago":"Garnefeld, Ina, Tabea Krah, Eva Böhm, and Dwayne D. Gremler. “Online Reviews Generated through Product Testing: Can More Favorable Reviews Be Enticed with Free Products?” Journal of the Academy of Marketing Science 49, no. 4 (2021): 703–22. https://doi.org/10.1007/s11747-021-00770-6.","short":"I. Garnefeld, T. Krah, E. Böhm, D.D. Gremler, Journal of the Academy of Marketing Science 49 (2021) 703–722."},"status":"public","_id":"41337","publisher":"Springer Science and Business Media LLC","page":"703-722","volume":49,"user_id":"49063","issue":"4","publication":"Journal of the Academy of Marketing Science","extern":"1","abstract":[{"text":"AbstractOnline reviews have profound impacts on firm success in terms of sales volume and how much customers are willing to pay, yet firms remain highly dependent on customers’ voluntary contributions. A popular way to increase the number of online reviews is to use product testing programs, which offer participants free products in exchange for writing reviews. Firms that employ this practice generally hope to increase review quality and secure higher product rating scores. However, a qualitative study, experimental study, and multilevel analysis of a field study dataset of more than 200,000 online reviews by product testers combine to reveal that product testing programs do not necessarily generate higher quality reviews, nor better product ratings. Only in certain circumstances (e.g., higher priced products) does offering a product testing program generate these benefits for the firm. Therefore, companies should consider carefully if and when they want to offer product testing programs.","lang":"eng"}],"date_created":"2023-02-01T08:29:53Z","department":[{"_id":"785"}],"type":"journal_article","keyword":["Marketing","Economics and Econometrics","Business and International Management"],"author":[{"first_name":"Ina","last_name":"Garnefeld","full_name":"Garnefeld, Ina"},{"full_name":"Krah, Tabea","last_name":"Krah","first_name":"Tabea"},{"last_name":"Böhm","orcid":"0000-0001-6053-1012","first_name":"Eva","full_name":"Böhm, Eva","id":"3043"},{"full_name":"Gremler, Dwayne D.","last_name":"Gremler","first_name":"Dwayne D."}],"publication_identifier":{"issn":["0092-0703","1552-7824"]},"year":"2021","title":"Online reviews generated through product testing: can more favorable reviews be enticed with free products?","intvolume":" 49","publication_status":"published","date_updated":"2023-09-01T10:12:36Z","language":[{"iso":"eng"}],"doi":"10.1007/s11747-021-00770-6"},{"user_id":"38240","publisher":"IEEE","_id":"21541","conference":{"end_date":"2020-09-25","name":"2020 International Symposium on Electromagnetic Compatibility - EMC EUROPE","start_date":"2020-09-23","location":"Rome, Italy "},"status":"public","project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"citation":{"ieee":"S. Lange, D. Schroder, C. Hedayat, C. Hangmann, T. Otto, and U. Hilleringmann, “Investigation of the Surface Equivalence Principle on a Metal Surface for a Near-Field to Far-Field Transformation by the NFS3000,” in 2020 International Symposium on Electromagnetic Compatibility - EMC EUROPE, Rome, Italy , 2020.","apa":"Lange, S., Schroder, D., Hedayat, C., Hangmann, C., Otto, T., & Hilleringmann, U. (2020). Investigation of the Surface Equivalence Principle on a Metal Surface for a Near-Field to Far-Field Transformation by the NFS3000. In 2020 International Symposium on Electromagnetic Compatibility - EMC EUROPE. Rome, Italy : IEEE. https://doi.org/10.1109/emceurope48519.2020.9245697","short":"S. Lange, D. Schroder, C. Hedayat, C. Hangmann, T. Otto, U. Hilleringmann, in: 2020 International Symposium on Electromagnetic Compatibility - EMC EUROPE, IEEE, 2020.","chicago":"Lange, Sven, Dominik Schroder, Christian Hedayat, Christian Hangmann, Thomas Otto, and Ulrich Hilleringmann. “Investigation of the Surface Equivalence Principle on a Metal Surface for a Near-Field to Far-Field Transformation by the NFS3000.” In 2020 International Symposium on Electromagnetic Compatibility - EMC EUROPE. IEEE, 2020. https://doi.org/10.1109/emceurope48519.2020.9245697.","mla":"Lange, Sven, et al. “Investigation of the Surface Equivalence Principle on a Metal Surface for a Near-Field to Far-Field Transformation by the NFS3000.” 2020 International Symposium on Electromagnetic Compatibility - EMC EUROPE, IEEE, 2020, doi:10.1109/emceurope48519.2020.9245697.","bibtex":"@inproceedings{Lange_Schroder_Hedayat_Hangmann_Otto_Hilleringmann_2020, title={Investigation of the Surface Equivalence Principle on a Metal Surface for a Near-Field to Far-Field Transformation by the NFS3000}, DOI={10.1109/emceurope48519.2020.9245697}, booktitle={2020 International Symposium on Electromagnetic Compatibility - EMC EUROPE}, publisher={IEEE}, author={Lange, Sven and Schroder, Dominik and Hedayat, Christian and Hangmann, Christian and Otto, Thomas and Hilleringmann, Ulrich}, year={2020} }","ama":"Lange S, Schroder D, Hedayat C, Hangmann C, Otto T, Hilleringmann U. Investigation of the Surface Equivalence Principle on a Metal Surface for a Near-Field to Far-Field Transformation by the NFS3000. In: 2020 International Symposium on Electromagnetic Compatibility - EMC EUROPE. IEEE; 2020. doi:10.1109/emceurope48519.2020.9245697"},"doi":"10.1109/emceurope48519.2020.9245697","language":[{"iso":"eng"}],"main_file_link":[{"url":"https://ieeexplore.ieee.org/document/9245697"}],"publication_status":"published","date_updated":"2022-01-06T06:55:03Z","publication_identifier":{"eisbn":["978-1-7281-5579-1"],"isbn":["978-1-7281-5580-7"],"issn":["2325-0364 "]},"author":[{"full_name":"Lange, Sven","last_name":"Lange","first_name":"Sven","id":"38240"},{"full_name":"Schroder, Dominik","first_name":"Dominik","last_name":"Schroder"},{"full_name":"Hedayat, Christian","last_name":"Hedayat","first_name":"Christian"},{"full_name":"Hangmann, Christian","first_name":"Christian","last_name":"Hangmann"},{"first_name":"Thomas","last_name":"Otto","full_name":"Otto, Thomas"},{"last_name":"Hilleringmann","first_name":"Ulrich","full_name":"Hilleringmann, Ulrich"}],"year":"2020","title":"Investigation of the Surface Equivalence Principle on a Metal Surface for a Near-Field to Far-Field Transformation by the NFS3000","department":[{"_id":"59"},{"_id":"485"}],"type":"conference","keyword":["Near-Field Scanner","Near-Field to Far-Field Transformation","Directivity","Surface Equivalence Theorem","Huygens’ Box"],"date_created":"2021-03-18T13:43:53Z","related_material":{"record":[{"status":"public","relation":"original","id":"21541"}]},"abstract":[{"text":"In this publication, the near-field to far-field transformation using the self-built near-field scanner NFS3000 is examined with regard to its geometry. This device allows to measure electric and magnetic fields in small distances to the DUT (Device under Test) with high geometric precision and high sensitivity. Leading to a fast examination of EMC (Electromagnetic Compatibility) problems, because the electromagnetic properties are better understandable and therefore easier to solve than e.g. measurements in a far-field chamber. In addition, it is possible to extrapolate the near-fields into the far-field and to determine the radiation pattern of antennas and emitting objects. For this purpose, this paper deals with the basis of this transformation, the so-called surface equivalence theorem. This principle is then adapted to the measurement of near-field scanners and implemented accordingly. Due to the non-ideal design of the near-field scanner, the effects on a far-field transformation are finally presented and discussed.","lang":"eng"}],"publication":"2020 International Symposium on Electromagnetic Compatibility - EMC EUROPE"},{"edition":"1","_id":"21542","publisher":" The Institution of Engineering and Technology (IET)","page":"315-346 (32)","user_id":"38240","status":"public","place":"Croyton, UK","citation":{"apa":"Schröder, D., Lange, S., Hangmann, C., & Hedayat, C. (2020). Far-field prediction combining simulations with near-field measurements for EMI assessment of PCBs. In Tensorial Analysis of Networks (TAN) Modelling for PCB Signal Integrity and EMC Analysis (1st ed., pp. 315-346 (32)). Croyton, UK: The Institution of Engineering and Technology (IET). https://doi.org/10.1049/pbcs072e_ch14","mla":"Schröder, Dominik, et al. “Far-Field Prediction Combining Simulations with near-Field Measurements for EMI Assessment of PCBs.” Tensorial Analysis of Networks (TAN) Modelling for PCB Signal Integrity and EMC Analysis, 1st ed., The Institution of Engineering and Technology (IET), 2020, pp. 315-346 (32), doi:10.1049/pbcs072e_ch14.","ieee":"D. Schröder, S. Lange, C. Hangmann, and C. Hedayat, “Far-field prediction combining simulations with near-field measurements for EMI assessment of PCBs,” in Tensorial Analysis of Networks (TAN) Modelling for PCB Signal Integrity and EMC Analysis, 1st ed., Croyton, UK: The Institution of Engineering and Technology (IET), 2020, pp. 315-346 (32).","chicago":"Schröder, Dominik, Sven Lange, Christian Hangmann, and Christian Hedayat. “Far-Field Prediction Combining Simulations with near-Field Measurements for EMI Assessment of PCBs.” In Tensorial Analysis of Networks (TAN) Modelling for PCB Signal Integrity and EMC Analysis, 1st ed., 315-346 (32). Croyton, UK: The Institution of Engineering and Technology (IET), 2020. https://doi.org/10.1049/pbcs072e_ch14.","short":"D. Schröder, S. Lange, C. Hangmann, C. Hedayat, in: Tensorial Analysis of Networks (TAN) Modelling for PCB Signal Integrity and EMC Analysis, 1st ed., The Institution of Engineering and Technology (IET), Croyton, UK, 2020, pp. 315-346 (32).","ama":"Schröder D, Lange S, Hangmann C, Hedayat C. Far-field prediction combining simulations with near-field measurements for EMI assessment of PCBs. In: Tensorial Analysis of Networks (TAN) Modelling for PCB Signal Integrity and EMC Analysis. 1st ed. Croyton, UK: The Institution of Engineering and Technology (IET); 2020:315-346 (32). doi:10.1049/pbcs072e_ch14","bibtex":"@inbook{Schröder_Lange_Hangmann_Hedayat_2020, place={Croyton, UK}, edition={1}, title={Far-field prediction combining simulations with near-field measurements for EMI assessment of PCBs}, DOI={10.1049/pbcs072e_ch14}, booktitle={Tensorial Analysis of Networks (TAN) Modelling for PCB Signal Integrity and EMC Analysis}, publisher={ The Institution of Engineering and Technology (IET)}, author={Schröder, Dominik and Lange, Sven and Hangmann, Christian and Hedayat, Christian}, year={2020}, pages={315-346 (32)} }"},"project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"language":[{"iso":"eng"}],"main_file_link":[{"url":"https://digital-library.theiet.org/content/books/10.1049/pbcs072e_ch14"}],"doi":"10.1049/pbcs072e_ch14","author":[{"first_name":"Dominik","last_name":"Schröder","full_name":"Schröder, Dominik"},{"id":"38240","full_name":"Lange, Sven","last_name":"Lange","first_name":"Sven"},{"first_name":"Christian","last_name":"Hangmann","full_name":"Hangmann, Christian"},{"last_name":"Hedayat","first_name":"Christian","full_name":"Hedayat, Christian"}],"publication_identifier":{"isbn":["9781839530494","9781839530500"]},"title":"Far-field prediction combining simulations with near-field measurements for EMI assessment of PCBs","year":"2020","date_updated":"2022-01-06T06:55:03Z","publication_status":"published","date_created":"2021-03-18T13:49:49Z","department":[{"_id":"485"}],"type":"book_chapter","keyword":["Huygens' box","NF-to-FF transformation","efficient FF radiation model","FF behaviour","EMI assessment","PCB","near-field measurements","efficient radiation model","far-field behaviour","RF design process","far-field prediction","Huygens'box principle","fullwave simulation","electronic system radiation","equivalent radiation source","electromagnetic simulation tool","near-field scan data","EM compatibility failure reduction"],"publication":"Tensorial Analysis of Networks (TAN) Modelling for PCB Signal Integrity and EMC Analysis","abstract":[{"lang":"eng","text":"Using near-field (NF) scan data to predict the far-field (FF) behaviour of radiating electronic systems represents a novel method to accompany the whole RF design process. This approach involves so-called Huygens' box as an efficient radiation model inside an electromagnetic (EM) simulation tool and then transforms the scanned NF measured data into the FF. For this, the basic idea of the Huygens'box principle and the NF-to-FF transformation are briefly presented. The NF is measured on the Huygens' box around a device under test using anNF scanner, recording the magnitude and phase of the site-related magnetic and electric components. A comparison between a fullwave simulation and the measurement results shows a good similarity in both the NF and the simulated and transformed FF.Thus, this method is applicable to predict the FF behaviour of any electronic system by measuring the NF. With this knowledge, the RF design can be improved due to allowing a significant reduction of EM compatibility failure at the end of the development flow. In addition, the very efficient FF radiation model can be used for detailed investigations in various environments and the impact of such an equivalent radiation source on other electronic systems can be assessed."}],"related_material":{"record":[{"status":"public","id":"21542","relation":"other"}]}}]