@book{64262, author = {{Kusay-Merkle, Ursula}}, isbn = {{9783662628096}}, publisher = {{Springer Berlin Heidelberg}}, title = {{{Agiles Projektmanagement im Berufsalltag}}}, doi = {{10.1007/978-3-662-62810-2}}, year = {{2021}}, } @inproceedings{21178, abstract = {{When engaging in argumentative discourse, skilled human debaters tailor claims to the beliefs of the audience, to construct effective arguments. Recently, the field of computational argumentation witnessed extensive effort to address the automatic generation of arguments. However, existing approaches do not perform any audience-specific adaptation. In this work, we aim to bridge this gap by studying the task of belief-based claim generation: Given a controversial topic and a set of beliefs, generate an argumentative claim tailored to the beliefs. To tackle this task, we model the people's prior beliefs through their stances on controversial topics and extend state-of-the-art text generation models to generate claims conditioned on the beliefs. Our automatic evaluation confirms the ability of our approach to adapt claims to a set of given beliefs. In a manual study, we additionally evaluate the generated claims in terms of informativeness and their likelihood to be uttered by someone with a respective belief. Our results reveal the limitations of modeling users' beliefs based on their stances, but demonstrate the potential of encoding beliefs into argumentative texts, laying the ground for future exploration of audience reach.}}, author = {{Alshomary, Milad and Chen, Wei-Fan and Gurcke, Timon and Wachsmuth, Henning}}, booktitle = {{Proceedings of the 16th Conference of the European Chapter of the Association for Computational Linguistics: Main Volume}}, location = {{Online}}, pages = {{224--233}}, publisher = {{Association for Computational Linguistics}}, title = {{{Belief-based Generation of Argumentative Claims}}}, doi = {{10.18653/v1/2021.eacl-main.17}}, year = {{2021}}, } @misc{45855, author = {{Asenkerschbaumer, Stefan and Buhl, Hans-Ulrich and Sureth-Sloane, Caren and Weißenberger, Barbara E.}}, booktitle = {{Frankfurter Allgemeine Zeitung}}, number = {{101}}, pages = {{20}}, title = {{{Georg Giersberg: die Stimme für die BWL}}}, year = {{2021}}, } @inproceedings{41883, author = {{Lettner, Thomas and Gyger, Samuel and Zeuner, Katharina D. and Schweickert, Lucas and Steinhauer, Stephan and Reuterskiöld Hedlund, Carl and Stroj, Sandra and Rastelli, Armando and Hammar, Mattias and Trotta, Rinaldo and Jöns, Klaus D. and Zwiller, Val}}, number = {{24}}, pages = {{10501--10506}}, title = {{{Strain-Controlled Quantum Dot Fine Structure for Entangled Photon Generation at 1550 nm}}}, doi = {{10.1021/acs.nanolett.1c04024}}, volume = {{21}}, year = {{2021}}, } @inproceedings{59780, author = {{Petrov, Dmitry and Taron, Kim-Florian and Hilleringmann, Ulrich and Joubert, Trudi-Heleen}}, booktitle = {{2021 Smart Systems Integration (SSI)}}, publisher = {{IEEE}}, title = {{{Low-cost Sensor System for on-the-field Water Quality Analysis}}}, doi = {{10.1109/ssi52265.2021.9466956}}, year = {{2021}}, } @inproceedings{59777, author = {{Hilleringmann, Ulrich and Petrov, Dmitry and Mwammenywa, Ibrahim and Kagarura, Geoffrey Mark}}, booktitle = {{2021 IEEE AFRICON}}, publisher = {{IEEE}}, title = {{{Local Power Control using Wireless Sensor System for Microgrids in Africa}}}, doi = {{10.1109/africon51333.2021.9570970}}, year = {{2021}}, } @inproceedings{39397, author = {{Petrov, Dmitry and Kroschewski, Konstantin and Hilleringmann, Ulrich}}, booktitle = {{2021 Smart Systems Integration (SSI)}}, publisher = {{IEEE}}, title = {{{Microcontroller Firmware Design for Industrial Wireless Sensors}}}, doi = {{10.1109/ssi52265.2021.9467010}}, year = {{2021}}, } @article{59779, author = {{Petrov, Dmitry and Hilleringmann, Ulrich}}, issn = {{2415-6698}}, journal = {{Advances in Science, Technology and Engineering Systems Journal}}, number = {{5}}, pages = {{267--272}}, publisher = {{ASTES Journal}}, title = {{{Low-Power Primary Cell with Water-Based Electrolyte for Powering of Wireless Sensors}}}, doi = {{10.25046/aj060529}}, volume = {{6}}, year = {{2021}}, } @inproceedings{59774, author = {{Petrov, Dmitry and Kroschewski, Konstantin and Mwammenywa, Ibrahim and Kagarura, Geoffrey Mark and Hilleringmann, Ulrich}}, booktitle = {{2021 IEEE Sensors}}, publisher = {{IEEE}}, title = {{{Low-Cost NB-IoT Microgrid Power Quality Monitoring System}}}, doi = {{10.1109/sensors47087.2021.9639641}}, year = {{2021}}, } @phdthesis{64765, author = {{Nikitin, Natalie}}, title = {{{Regularity properties of infinite-dimensional Lie groups and exponential laws}}}, year = {{2021}}, } @article{34790, author = {{Glöckner, Helge and Willis, George A.}}, issn = {{0075-4102}}, journal = {{Journal für die reine und angewandte Mathematik}}, keywords = {{22D05, 22A05, 20E18}}, pages = {{85–103}}, title = {{{Locally pro-p contraction groups are nilpotent}}}, doi = {{10.1515/crelle-2021-0050}}, volume = {{781}}, year = {{2021}}, } @inbook{22930, abstract = {{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.}}, author = {{Uhe, Benedikt and Kuball, Clara-Maria and Merklein, Marion and Meschut, Gerson}}, booktitle = {{Forming the Future - Proceedings of the 13th International Conference on the Technology of Plasticity. The Minerals, Metals & Materials Series.}}, editor = {{Daehn, Glenn and Cao, Jian and Kinsey, Brad and Tekkaya, Erman and Vivek, Anupam and Yoshida, Yoshinori}}, keywords = {{Self-piercing riveting, Lightweight design, Deformation behaviour, Stainless steel, High nitrogen steel}}, pages = {{1495--1506}}, publisher = {{Springer}}, title = {{{Self-Piercing Riveting Using Rivets Made of Stainless Steel with High Strain Hardening}}}, doi = {{10.1007/978-3-030-75381-8_124}}, year = {{2021}}, } @inproceedings{22274, abstract = {{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. }}, author = {{Uhe, Benedikt and Kuball, Clara-Maria and Merklein, Marion and Meschut, Gerson}}, keywords = {{Self-piercing Riveting, Joining Technology, Rivet Geometry, Rivet Material, High Nitrogen Steel, Joint Strength}}, location = {{Liège, Belgien}}, title = {{{Strength of self-piercing riveted Joints with conventional Rivets and Rivets made of High Nitrogen Steel}}}, doi = {{10.25518/esaform21.1911}}, year = {{2021}}, } @article{22272, abstract = {{The number of multi-material joints is increasing as a result of lightweight design. Self-piercing riveting (SPR) is an important mechanical joining technique for multi-material structures. Rivets for SPR are coated to prevent corrosion, but this coating also influences the friction that prevails during the joining process. The aim of the present investigation is to evaluate this influence. The investigation focuses on the common rivet coatings Almac® and zinc-nickel with topcoat as well as on uncoated rivet surfaces. First of all, the coating thickness and the uniformity of the coating distribution are analysed. Friction tests facilitate the classification of the surface properties. The influence of the friction on the characteristic joint parameters and the force-stroke curves is analysed by means of experimental joining tests. More in-depth knowledge of the effects that occur is achieved through the use of numerical simulation. Overall, it is shown that the surface condition of the rivet has an impact on the friction during the joining process and on the resulting joint. However, the detected deviations between different surface conditions do not restrict the operational capability of SPR and the properties of uncoated rivet surfaces, in particular, are similar to those of Almac®-coated rivets. It can thus be assumed that SPR with respect to the joining process is also possible without rivet coating in principle.}}, author = {{Uhe, Benedikt and Kuball, Clara-Maria and Merklein, Marion and Meschut, Gerson}}, journal = {{Key Engineering Materials}}, keywords = {{Coating, Friction, Joining}}, pages = {{11--18}}, title = {{{Influence of the Rivet Coating on the Friction during Self-Piercing Riveting}}}, doi = {{10.4028/www.scientific.net/KEM.883.11}}, volume = {{883}}, year = {{2021}}, } @article{42671, abstract = {{Artificial conversational agents are becoming increasingly popular in various spheres of life. Contemporary AI is able to talk to humans using sophis­ticated conversational techniques and human-like conversational patterns. For instance, Google Duplex, a cutting-edge voice interface, is capable of autonomously making customer service calls that barely register as robotic. With the frequency of human-computer interactions on the rise, there is a growing need to study their features: how misunderstandings are resolved, how conversational aims are achieved. This article is an empirical investigation of the interaction between an advanced conver­sational agent and human interactant. Using the framework of ethnomethodology and conversation analysis, the authors analyze the procedurally unfolding and naturally emerging conversational practices, as well as the normative structures that emerge as a result. The research is based on a recording of a call between Google Duplex and a human operator. We explore how to reach conversational closing — a microstructure that requires cooperation between the speakers. Despite interactional tensions caused by the robot’s incongruous prosody, conversational closing is produced by the gradual achievement of epistemic balance. The authors empha­size the relationship between the institu­tional context of the interaction and the non-human agent’s robotic nature. The results serve as a foundation for future studies in human-robot interaction and provide a deeper understanding of how conversational closings are achieved in liminal cases.}}, author = {{Egorova, Anastasia I. and Klowait, Nils}}, issn = {{2219-5467}}, journal = {{The monitoring of public opinion economic&social changes}}, keywords = {{Economics, Econometrics and Finance (miscellaneous), Sociology and Political Science}}, number = {{1}}, publisher = {{VCIOM, Russia (Russian Public Opinion Research Center)}}, title = {{{How to Say Good-Bye to a Robot? The Matter of Conversational Closing}}}, doi = {{10.14515/monitoring.2021.1.1810}}, year = {{2021}}, } @article{42670, abstract = {{The field of human-computer interaction (HCI) investigates the intersection between the design of devices and users. From an early focus on interaction modeling based on psychological experiments, the field has since experienced a shift towards the study of how actual humans interact with autonomous devices. The field became conductive to ethnographic, observational and videographic studies of human-device interaction. Conversation-analytic HCI became possible. That said, this new wave of researchers was never truly able to dethrone the psychological common sense of the field. With recent developments in both the technical-sensorial capabilities and outward actuational range of embodied virtual agents, the field of HCI has once again returned to the question of the sequential unfolding of the interaction between users and intelligent agents, and the multimodal interactional repertoire that is deployed throughout. This review will highlight the situational orientation of high-impact research in the field, and relate it to the cotemporaneous development of ethnomethodological and conversation analytic frameworks. Acknowledgments. The article was prepared in the framework of a research grant funded by the Ministry of Science and Higher Education of the Russian Federation (grant ID: 075-15-2020-908). The article was prepared in cooperation with the Sber (ex. – Sberbank’s) Gamification Lab.}}, author = {{Klowait, Nils and Erofeeva, Maria A.}}, issn = {{2219-5467}}, journal = {{The monitoring of public opinion economic&social changes}}, keywords = {{Economics, Econometrics and Finance (miscellaneous), Sociology and Political Science}}, number = {{1}}, publisher = {{VCIOM, Russia (Russian Public Opinion Research Center)}}, title = {{{The Rise of Interactional Multimodality in Human-Computer Interaction}}}, doi = {{10.14515/monitoring.2021.1.1793}}, year = {{2021}}, } @inbook{54587, abstract = {{With significant growth in RDF datasets, application developers demand online availability of these datasets to meet the end users’ expectations. Various interfaces are available for querying RDF data using SPARQL query language. Studies show that SPARQL end-points may provide high query runtime performance at the cost of low availability. For example, it has been observed that only 32.2% of public endpoints have a monthly uptime of 99–100%. One possible reason for this low availability is the high workload experienced by these SPARQL endpoints. As complete query execution is performed at server side (i.e., SPARQL endpoint), this high query processing workload may result in performance degradation or even a service shutdown. We performed extensive experiments to show the query processing capabilities of well-known triple stores by using their SPARQL endpoints. In particular, we stressed these triple stores with multiple parallel requests from different querying agents. Our experiments revealed the maximum query processing capabilities of these triple stores after which point they lead to service shutdowns. We hope this analysis will help triple store developers to design workload-aware RDF engines to improve the availability of their public endpoints with high throughput.}}, author = {{Khan, Hashim and Manzoor, Ali and Ngonga Ngomo, Axel-Cyrille and Saleem, Muhammad}}, booktitle = {{Studies on the Semantic Web}}, issn = {{1868-1158}}, publisher = {{IOS Press}}, title = {{{When is the Peak Performance Reached? An Analysis of RDF Triple Stores}}}, doi = {{10.3233/ssw210042}}, year = {{2021}}, } @inproceedings{27551, author = {{Ludwig, Janis and Kykal, Carsten and Schmid, Hans-Joachim}}, booktitle = {{Book of abstracts for the 2021 European Aerosol Conference}}, keywords = {{aerosol spreading, SARS-CoV-2, indoor air filtration}}, title = {{{Assessing spreading and removal of virus laden aerosols in different settings using an aerosol method (oral presentation)}}}, year = {{2021}}, } @article{61802, author = {{Giermindl, Lisa Marie and Strich, Franz and Christ, Oliver and Leicht-Deobald, Ulrich and Redzepi, Abdullah}}, issn = {{0960-085X}}, journal = {{European Journal of Information Systems}}, number = {{3}}, pages = {{410--435}}, publisher = {{Informa UK Limited}}, title = {{{The dark sides of people analytics: reviewing the perils for organisations and employees}}}, doi = {{10.1080/0960085x.2021.1927213}}, volume = {{31}}, year = {{2021}}, } @article{61913, author = {{Diekmann, Isabell and Greschner, Deniz and von der Heyde, Judith and Logeswaran, Araththy and Reinhardt, Anna C. and Strube, Sonja A.}}, isbn = {{978-3-9820349-4-2}}, journal = {{Perspektiven. Soziale Arbeit in der Migrationsgesellschaft und muslimische Wohlfahrtspflege}}, number = {{1}}, pages = {{7 – 10}}, publisher = {{Universität Osnabrück}}, title = {{{Perspektiven auf Ungleichheit und Ungleichwertigkeit im Kontext Sozialer Arbeit. Eine Einleitung}}}, volume = {{2021}}, year = {{2021}}, }