[{"title":"Towards a Scalable and Flexible Simulation and Testing Environment  Toolbox for Intelligent Microgrid Control","main_file_link":[{"url":"https://arxiv.org/pdf/2005.04869.pdf","open_access":"1"}],"date_updated":"2022-01-06T06:54:07Z","oa":"1","date_created":"2020-09-21T10:01:36Z","author":[{"full_name":"Bode, Henrik","last_name":"Bode","first_name":"Henrik"},{"last_name":"Heid","orcid":"0000-0002-9461-7372","full_name":"Heid, Stefan Helmut","id":"39640","first_name":"Stefan Helmut"},{"first_name":"Daniel","full_name":"Weber, Daniel","last_name":"Weber"},{"last_name":"Hüllermeier","full_name":"Hüllermeier, Eyke","id":"48129","first_name":"Eyke"},{"last_name":"Wallscheid","full_name":"Wallscheid, Oliver","first_name":"Oliver"}],"year":"2020","citation":{"bibtex":"@article{Bode_Heid_Weber_Hüllermeier_Wallscheid_2020, title={Towards a Scalable and Flexible Simulation and Testing Environment  Toolbox for Intelligent Microgrid Control}, journal={arXiv:2005.04869}, author={Bode, Henrik and Heid, Stefan Helmut and Weber, Daniel and Hüllermeier, Eyke and Wallscheid, Oliver}, year={2020} }","mla":"Bode, Henrik, et al. “Towards a Scalable and Flexible Simulation and Testing Environment  Toolbox for Intelligent Microgrid Control.” <i>ArXiv:2005.04869</i>, 2020.","short":"H. Bode, S.H. Heid, D. Weber, E. Hüllermeier, O. Wallscheid, ArXiv:2005.04869 (2020).","apa":"Bode, H., Heid, S. H., Weber, D., Hüllermeier, E., &#38; Wallscheid, O. (2020). Towards a Scalable and Flexible Simulation and Testing Environment  Toolbox for Intelligent Microgrid Control. <i>ArXiv:2005.04869</i>.","ama":"Bode H, Heid SH, Weber D, Hüllermeier E, Wallscheid O. Towards a Scalable and Flexible Simulation and Testing Environment  Toolbox for Intelligent Microgrid Control. <i>arXiv:200504869</i>. 2020.","chicago":"Bode, Henrik, Stefan Helmut Heid, Daniel Weber, Eyke Hüllermeier, and Oliver Wallscheid. “Towards a Scalable and Flexible Simulation and Testing Environment  Toolbox for Intelligent Microgrid Control.” <i>ArXiv:2005.04869</i>, 2020.","ieee":"H. Bode, S. H. Heid, D. Weber, E. Hüllermeier, and O. Wallscheid, “Towards a Scalable and Flexible Simulation and Testing Environment  Toolbox for Intelligent Microgrid Control,” <i>arXiv:2005.04869</i>. 2020."},"language":[{"iso":"eng"}],"_id":"19603","user_id":"39640","abstract":[{"lang":"eng","text":"Micro- and smart grids (MSG) play an important role both for integrating\r\nrenewable energy sources in conventional electricity grids and for providing\r\npower supply in remote areas. Modern MSGs are largely driven by power\r\nelectronic converters due to their high efficiency and flexibility.\r\nNevertheless, controlling MSGs is a challenging task due to highest\r\nrequirements on energy availability, safety and voltage quality within a wide\r\nrange of different MSG topologies. This results in a high demand for\r\ncomprehensive testing of new control concepts during their development phase\r\nand comparisons with the state of the art in order to ensure their feasibility.\r\nThis applies in particular to data-driven control approaches from the field of\r\nreinforcement learning (RL), whose stability and operating behavior can hardly\r\nbe evaluated a priori. Therefore, the OpenModelica Microgrid Gym (OMG) package,\r\nan open-source software toolbox for the simulation and control optimization of\r\nMSGs, is proposed. It is capable of modeling and simulating arbitrary MSG\r\ntopologies and offers a Python-based interface for plug \\& play controller\r\ntesting. In particular, the standardized OpenAI Gym interface allows for easy\r\nRL-based controller integration. Besides the presentation of the OMG toolbox,\r\napplication examples are highlighted including safe Bayesian optimization for\r\nlow-level controller tuning."}],"status":"public","publication":"arXiv:2005.04869","type":"preprint"},{"has_accepted_license":"1","intvolume":"     12481","citation":{"ama":"Gottschalk S, Yigitbas E, Schmidt E, Engels G. ProConAR: A Tool Support for Model-based AR Product Configuration. In: Bernhaupt R, Ardito C, Sauer S, eds. <i>Human-Centered Software Engineering. HCSE 2020</i>. Vol 12481. Lecture Notes in Computer Science. Cham: Springer; 2020. doi:<a href=\"https://doi.org/10.1007/978-3-030-64266-2_14\">10.1007/978-3-030-64266-2_14</a>","chicago":"Gottschalk, Sebastian, Enes Yigitbas, Eugen Schmidt, and Gregor Engels. “ProConAR: A Tool Support for Model-Based AR Product Configuration.” In <i>Human-Centered Software Engineering. HCSE 2020</i>, edited by Regina Bernhaupt, Carmelo Ardito, and Stefan Sauer, Vol. 12481. Lecture Notes in Computer Science. Cham: Springer, 2020. <a href=\"https://doi.org/10.1007/978-3-030-64266-2_14\">https://doi.org/10.1007/978-3-030-64266-2_14</a>.","ieee":"S. Gottschalk, E. Yigitbas, E. Schmidt, and G. Engels, “ProConAR: A Tool Support for Model-based AR Product Configuration,” in <i>Human-Centered Software Engineering. HCSE 2020</i>, Eindhoven, 2020, vol. 12481.","short":"S. Gottschalk, E. Yigitbas, E. Schmidt, G. Engels, in: R. Bernhaupt, C. Ardito, S. Sauer (Eds.), Human-Centered Software Engineering. HCSE 2020, Springer, Cham, 2020.","bibtex":"@inproceedings{Gottschalk_Yigitbas_Schmidt_Engels_2020, place={Cham}, series={Lecture Notes in Computer Science}, title={ProConAR: A Tool Support for Model-based AR Product Configuration}, volume={12481}, DOI={<a href=\"https://doi.org/10.1007/978-3-030-64266-2_14\">10.1007/978-3-030-64266-2_14</a>}, booktitle={Human-Centered Software Engineering. HCSE 2020}, publisher={Springer}, author={Gottschalk, Sebastian and Yigitbas, Enes and Schmidt, Eugen and Engels, Gregor}, editor={Bernhaupt, Regina and Ardito, Carmelo and Sauer, StefanEditors}, year={2020}, collection={Lecture Notes in Computer Science} }","mla":"Gottschalk, Sebastian, et al. “ProConAR: A Tool Support for Model-Based AR Product Configuration.” <i>Human-Centered Software Engineering. HCSE 2020</i>, edited by Regina Bernhaupt et al., vol. 12481, Springer, 2020, doi:<a href=\"https://doi.org/10.1007/978-3-030-64266-2_14\">10.1007/978-3-030-64266-2_14</a>.","apa":"Gottschalk, S., Yigitbas, E., Schmidt, E., &#38; Engels, G. (2020). ProConAR: A Tool Support for Model-based AR Product Configuration. In R. Bernhaupt, C. Ardito, &#38; S. Sauer (Eds.), <i>Human-Centered Software Engineering. HCSE 2020</i> (Vol. 12481). Cham: Springer. <a href=\"https://doi.org/10.1007/978-3-030-64266-2_14\">https://doi.org/10.1007/978-3-030-64266-2_14</a>"},"place":"Cham","volume":12481,"author":[{"first_name":"Sebastian","id":"47208","full_name":"Gottschalk, Sebastian","last_name":"Gottschalk"},{"id":"8447","full_name":"Yigitbas, Enes","orcid":"0000-0002-5967-833X","last_name":"Yigitbas","first_name":"Enes"},{"full_name":"Schmidt, Eugen","last_name":"Schmidt","first_name":"Eugen"},{"first_name":"Gregor","last_name":"Engels","id":"107","full_name":"Engels, Gregor"}],"date_updated":"2022-01-06T06:54:07Z","oa":"1","conference":{"end_date":"2020-12-02","location":"Eindhoven","name":"8th International Working Conference on Human-Centered Software Engineering (HCSE'20)","start_date":"2020-11-30"},"doi":"10.1007/978-3-030-64266-2_14","type":"conference","status":"public","editor":[{"full_name":"Bernhaupt, Regina","last_name":"Bernhaupt","first_name":"Regina"},{"full_name":"Ardito, Carmelo","last_name":"Ardito","first_name":"Carmelo"},{"last_name":"Sauer","full_name":"Sauer, Stefan","first_name":"Stefan"}],"department":[{"_id":"66"},{"_id":"534"}],"series_title":"Lecture Notes in Computer Science","user_id":"47208","_id":"19606","project":[{"name":"SFB 901","_id":"1"},{"name":"SFB 901 - Project Area C","_id":"4"},{"_id":"17","name":"SFB 901 - Subproject C5"}],"file_date_updated":"2020-11-30T08:39:18Z","year":"2020","date_created":"2020-09-21T17:01:11Z","publisher":"Springer","title":"ProConAR: A Tool Support for Model-based AR Product Configuration","publication":"Human-Centered Software Engineering. HCSE 2020","file":[{"relation":"main_file","content_type":"application/pdf","file_id":"20542","file_name":"HCSE20_demo.pdf","access_level":"open_access","file_size":3913885,"date_created":"2020-11-30T08:39:18Z","creator":"sego","date_updated":"2020-11-30T08:39:18Z"}],"abstract":[{"lang":"eng","text":"Mobile shopping apps have been using Augmented Reality (AR) in the last years to place their products in the environment of the customer. While this is possible with atomic 3D objects, there is is still a lack in the runtime configuration of 3D object compositions based on user needs and environmental constraints. For this, we previously developed an approach for model-based AR-assisted product configuration based on the concept of Dynamic Software Product Lines. In this demonstration paper, we present the corresponding tool support ProConAR in the form of a Product Modeler and a Product Configurator. While the Product Modeler is an Angular web app that splits products (e.g. table) up into atomic parts (e.g. tabletop, table legs, funnier) and saves it within a configuration model, the Product Configurator is an Android client that uses the configuration model to place different product configurations within the environment of the customer. We show technical details of our ready to use tool-chain ProConAR by describing its implementation and usage as well as pointing out future research directions."}],"language":[{"iso":"eng"}],"keyword":["Product Configuration","Augmented Reality","Model-based","Tool Support"],"ddc":["000"]},{"file_date_updated":"2020-09-22T06:36:25Z","user_id":"35343","department":[{"_id":"75"}],"project":[{"name":"SFB 901","_id":"1"},{"name":"SFB 901 - Project Area C","_id":"4"},{"name":"SFB 901 - Subproject C4","_id":"16"}],"_id":"19607","status":"public","type":"conference","author":[{"first_name":"Stefan Balthasar","orcid":"0000-0001-8210-4011","last_name":"Schneider","full_name":"Schneider, Stefan Balthasar","id":"35343"},{"full_name":"Klenner, Lars Dietrich","last_name":"Klenner","first_name":"Lars Dietrich"},{"full_name":"Karl, Holger","id":"126","last_name":"Karl","first_name":"Holger"}],"date_updated":"2022-01-06T06:54:08Z","oa":"1","citation":{"short":"S.B. Schneider, L.D. Klenner, H. Karl, in: IEEE International Conference on Network and Service Management (CNSM), IEEE, 2020.","bibtex":"@inproceedings{Schneider_Klenner_Karl_2020, title={Every Node for Itself: Fully Distributed Service Coordination}, booktitle={IEEE International Conference on Network and Service Management (CNSM)}, publisher={IEEE}, author={Schneider, Stefan Balthasar and Klenner, Lars Dietrich and Karl, Holger}, year={2020} }","mla":"Schneider, Stefan Balthasar, et al. “Every Node for Itself: Fully Distributed Service Coordination.” <i>IEEE International Conference on Network and Service Management (CNSM)</i>, IEEE, 2020.","apa":"Schneider, S. B., Klenner, L. D., &#38; Karl, H. (2020). Every Node for Itself: Fully Distributed Service Coordination. In <i>IEEE International Conference on Network and Service Management (CNSM)</i>. IEEE.","ama":"Schneider SB, Klenner LD, Karl H. Every Node for Itself: Fully Distributed Service Coordination. In: <i>IEEE International Conference on Network and Service Management (CNSM)</i>. IEEE; 2020.","ieee":"S. B. Schneider, L. D. Klenner, and H. Karl, “Every Node for Itself: Fully Distributed Service Coordination,” in <i>IEEE International Conference on Network and Service Management (CNSM)</i>, 2020.","chicago":"Schneider, Stefan Balthasar, Lars Dietrich Klenner, and Holger Karl. “Every Node for Itself: Fully Distributed Service Coordination.” In <i>IEEE International Conference on Network and Service Management (CNSM)</i>. IEEE, 2020."},"has_accepted_license":"1","language":[{"iso":"eng"}],"ddc":["006"],"keyword":["distributed management","service coordination","network coordination","nfv","softwarization","orchestration"],"file":[{"file_size":500948,"file_name":"ris_with_copyright.pdf","access_level":"open_access","file_id":"19608","date_updated":"2020-09-22T06:36:25Z","creator":"stschn","date_created":"2020-09-22T06:25:57Z","relation":"main_file","content_type":"application/pdf"}],"abstract":[{"lang":"eng","text":"Modern services consist of modular, interconnected\r\ncomponents, e.g., microservices forming a service mesh. To\r\ndynamically adjust to ever-changing service demands, service\r\ncomponents have to be instantiated on nodes across the network.\r\nIncoming flows requesting a service then need to be routed\r\nthrough the deployed instances while considering node and link\r\ncapacities. Ultimately, the goal is to maximize the successfully\r\nserved flows and Quality of Service (QoS) through online service\r\ncoordination. Current approaches for service coordination are\r\nusually centralized, assuming up-to-date global knowledge and\r\nmaking global decisions for all nodes in the network. Such global\r\nknowledge and centralized decisions are not realistic in practical\r\nlarge-scale networks.\r\n\r\nTo solve this problem, we propose two algorithms for fully\r\ndistributed service coordination. The proposed algorithms can be\r\nexecuted individually at each node in parallel and require only\r\nvery limited global knowledge. We compare and evaluate both\r\nalgorithms with a state-of-the-art centralized approach in extensive\r\nsimulations on a large-scale, real-world network topology.\r\nOur results indicate that the two algorithms can compete with\r\ncentralized approaches in terms of solution quality but require\r\nless global knowledge and are magnitudes faster (more than\r\n100x)."}],"publication":"IEEE International Conference on Network and Service Management (CNSM)","title":"Every Node for Itself: Fully Distributed Service Coordination","date_created":"2020-09-22T06:23:40Z","publisher":"IEEE","year":"2020"},{"file_date_updated":"2020-09-22T06:36:00Z","project":[{"name":"SFB 901","_id":"1"},{"name":"SFB 901 - Project Area C","_id":"4"},{"_id":"16","name":"SFB 901 - Subproject C4"}],"_id":"19609","user_id":"35343","department":[{"_id":"75"}],"status":"public","type":"conference","date_updated":"2022-01-06T06:54:08Z","oa":"1","author":[{"orcid":"0000-0001-8210-4011","last_name":"Schneider","id":"35343","full_name":"Schneider, Stefan Balthasar","first_name":"Stefan Balthasar"},{"first_name":"Adnan","last_name":"Manzoor","full_name":"Manzoor, Adnan"},{"first_name":"Haydar","full_name":"Qarawlus, Haydar","last_name":"Qarawlus"},{"full_name":"Schellenberg, Rafael","last_name":"Schellenberg","first_name":"Rafael"},{"id":"126","full_name":"Karl, Holger","last_name":"Karl","first_name":"Holger"},{"first_name":"Ramin","last_name":"Khalili","full_name":"Khalili, Ramin"},{"first_name":"Artur","full_name":"Hecker, Artur","last_name":"Hecker"}],"citation":{"chicago":"Schneider, Stefan Balthasar, Adnan Manzoor, Haydar Qarawlus, Rafael Schellenberg, Holger Karl, Ramin Khalili, and Artur Hecker. “Self-Driving Network and Service Coordination Using Deep Reinforcement Learning.” In <i>IEEE International Conference on Network and Service Management (CNSM)</i>. IEEE, 2020.","ieee":"S. B. Schneider <i>et al.</i>, “Self-Driving Network and Service Coordination Using Deep Reinforcement Learning,” in <i>IEEE International Conference on Network and Service Management (CNSM)</i>, 2020.","ama":"Schneider SB, Manzoor A, Qarawlus H, et al. Self-Driving Network and Service Coordination Using Deep Reinforcement Learning. In: <i>IEEE International Conference on Network and Service Management (CNSM)</i>. IEEE; 2020.","mla":"Schneider, Stefan Balthasar, et al. “Self-Driving Network and Service Coordination Using Deep Reinforcement Learning.” <i>IEEE International Conference on Network and Service Management (CNSM)</i>, IEEE, 2020.","short":"S.B. Schneider, A. Manzoor, H. Qarawlus, R. Schellenberg, H. Karl, R. Khalili, A. Hecker, in: IEEE International Conference on Network and Service Management (CNSM), IEEE, 2020.","bibtex":"@inproceedings{Schneider_Manzoor_Qarawlus_Schellenberg_Karl_Khalili_Hecker_2020, title={Self-Driving Network and Service Coordination Using Deep Reinforcement Learning}, booktitle={IEEE International Conference on Network and Service Management (CNSM)}, publisher={IEEE}, author={Schneider, Stefan Balthasar and Manzoor, Adnan and Qarawlus, Haydar and Schellenberg, Rafael and Karl, Holger and Khalili, Ramin and Hecker, Artur}, year={2020} }","apa":"Schneider, S. B., Manzoor, A., Qarawlus, H., Schellenberg, R., Karl, H., Khalili, R., &#38; Hecker, A. (2020). Self-Driving Network and Service Coordination Using Deep Reinforcement Learning. In <i>IEEE International Conference on Network and Service Management (CNSM)</i>. IEEE."},"has_accepted_license":"1","ddc":["006"],"keyword":["self-driving networks","self-learning","network coordination","service coordination","reinforcement learning","deep learning","nfv"],"language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"Modern services comprise interconnected components,\r\ne.g., microservices in a service mesh, that can scale and\r\nrun on multiple nodes across the network on demand. To process\r\nincoming traffic, service components have to be instantiated and\r\ntraffic assigned to these instances, taking capacities and changing\r\ndemands into account. This challenge is usually solved with\r\ncustom approaches designed by experts. While this typically\r\nworks well for the considered scenario, the models often rely\r\non unrealistic assumptions or on knowledge that is not available\r\nin practice (e.g., a priori knowledge).\r\n\r\nWe propose a novel deep reinforcement learning approach that\r\nlearns how to best coordinate services and is geared towards\r\nrealistic assumptions. It interacts with the network and relies on\r\navailable, possibly delayed monitoring information. Rather than\r\ndefining a complex model or an algorithm how to achieve an\r\nobjective, our model-free approach adapts to various objectives\r\nand traffic patterns. An agent is trained offline without expert\r\nknowledge and then applied online with minimal overhead. Compared\r\nto a state-of-the-art heuristic, it significantly improves flow\r\nthroughput and overall network utility on real-world network\r\ntopologies and traffic traces. It also learns to optimize different\r\nobjectives, generalizes to scenarios with unseen, stochastic traffic\r\npatterns, and scales to large real-world networks."}],"file":[{"relation":"main_file","content_type":"application/pdf","file_size":642999,"file_id":"19610","file_name":"ris_with_copyright.pdf","access_level":"open_access","date_updated":"2020-09-22T06:36:00Z","creator":"stschn","date_created":"2020-09-22T06:29:16Z"}],"publication":"IEEE International Conference on Network and Service Management (CNSM)","title":"Self-Driving Network and Service Coordination Using Deep Reinforcement Learning","publisher":"IEEE","date_created":"2020-09-22T06:28:22Z","year":"2020"},{"year":"2020","page":"216-224","citation":{"chicago":"Jovanovikj, Ivan, Enes Yigitbas, Stefan Sauer, and Gregor Engels. “Augmented and Virtual Reality Object Repository for Rapid Prototyping .” In <i>Proceedings of the 8th International Working Conference on Human-Centered Software Engineering (HCSE’20)</i>, 216–24. Springer, 2020.","ieee":"I. Jovanovikj, E. Yigitbas, S. Sauer, and G. Engels, “Augmented and Virtual Reality Object Repository for Rapid Prototyping ,” in <i>Proceedings of the 8th International Working Conference on Human-Centered Software Engineering (HCSE’20)</i>, 2020, pp. 216–224.","ama":"Jovanovikj I, Yigitbas E, Sauer S, Engels G. Augmented and Virtual Reality Object Repository for Rapid Prototyping . In: <i>Proceedings of the 8th International Working Conference on Human-Centered Software Engineering (HCSE’20)</i>. Springer; 2020:216-224.","apa":"Jovanovikj, I., Yigitbas, E., Sauer, S., &#38; Engels, G. (2020). Augmented and Virtual Reality Object Repository for Rapid Prototyping . In <i>Proceedings of the 8th International Working Conference on Human-Centered Software Engineering (HCSE’20)</i> (pp. 216–224). Springer.","bibtex":"@inproceedings{Jovanovikj_Yigitbas_Sauer_Engels_2020, title={Augmented and Virtual Reality Object Repository for Rapid Prototyping }, booktitle={Proceedings of the 8th International Working Conference on Human-Centered Software Engineering (HCSE’20)}, publisher={Springer}, author={Jovanovikj, Ivan and Yigitbas, Enes and Sauer, Stefan and Engels, Gregor}, year={2020}, pages={216–224} }","mla":"Jovanovikj, Ivan, et al. “Augmented and Virtual Reality Object Repository for Rapid Prototyping .” <i>Proceedings of the 8th International Working Conference on Human-Centered Software Engineering (HCSE’20)</i>, Springer, 2020, pp. 216–24.","short":"I. Jovanovikj, E. Yigitbas, S. Sauer, G. Engels, in: Proceedings of the 8th International Working Conference on Human-Centered Software Engineering (HCSE’20), Springer, 2020, pp. 216–224."},"date_updated":"2022-01-06T06:54:09Z","publisher":"Springer","author":[{"first_name":"Ivan","orcid":"https://orcid.org/0000-0002-1838-794X","last_name":"Jovanovikj","full_name":"Jovanovikj, Ivan","id":"39187"},{"first_name":"Enes","orcid":"0000-0002-5967-833X","last_name":"Yigitbas","id":"8447","full_name":"Yigitbas, Enes"},{"last_name":"Sauer","full_name":"Sauer, Stefan","id":"447","first_name":"Stefan"},{"first_name":"Gregor","full_name":"Engels, Gregor","id":"107","last_name":"Engels"}],"date_created":"2020-09-22T12:44:51Z","title":"Augmented and Virtual Reality Object Repository for Rapid Prototyping ","publication":"Proceedings of the 8th International Working Conference on Human-Centered Software Engineering (HCSE'20)","type":"conference","status":"public","_id":"19632","department":[{"_id":"66"},{"_id":"534"}],"user_id":"8447","language":[{"iso":"eng"}]},{"author":[{"first_name":"Arnab","last_name":"Sharma","id":"67200","full_name":"Sharma, Arnab"},{"full_name":"Wehrheim, Heike","id":"573","last_name":"Wehrheim","first_name":"Heike"}],"date_created":"2020-09-24T12:53:02Z","date_updated":"2022-01-06T06:54:09Z","publisher":"Springer","title":"Automatic Fairness Testing of Machine Learning Models","publication_status":"accepted","citation":{"ama":"Sharma A, Wehrheim H. Automatic Fairness Testing of Machine Learning Models. In: <i>Proceedings of the 32th IFIP International Conference on Testing Software and Systems (ICTSS)</i>. LNCS. Springer.","chicago":"Sharma, Arnab, and Heike Wehrheim. “Automatic Fairness Testing of Machine Learning Models.” In <i>Proceedings of the 32th IFIP International Conference on Testing Software and Systems (ICTSS)</i>. LNCS. Springer, n.d.","ieee":"A. Sharma and H. Wehrheim, “Automatic Fairness Testing of Machine Learning Models,” in <i>Proceedings of the 32th IFIP International Conference on Testing Software and Systems (ICTSS)</i>.","apa":"Sharma, A., &#38; Wehrheim, H. (n.d.). Automatic Fairness Testing of Machine Learning Models. In <i>Proceedings of the 32th IFIP International Conference on Testing Software and Systems (ICTSS)</i>. Springer.","short":"A. Sharma, H. Wehrheim, in: Proceedings of the 32th IFIP International Conference on Testing Software and Systems (ICTSS), Springer, n.d.","bibtex":"@inproceedings{Sharma_Wehrheim, series={LNCS}, title={Automatic Fairness Testing of Machine Learning Models}, booktitle={Proceedings of the 32th IFIP International Conference on Testing Software and Systems (ICTSS)}, publisher={Springer}, author={Sharma, Arnab and Wehrheim, Heike}, collection={LNCS} }","mla":"Sharma, Arnab, and Heike Wehrheim. “Automatic Fairness Testing of Machine Learning Models.” <i>Proceedings of the 32th IFIP International Conference on Testing Software and Systems (ICTSS)</i>, Springer."},"year":"2020","department":[{"_id":"7"},{"_id":"77"}],"series_title":"LNCS","user_id":"477","_id":"19656","project":[{"name":"SFB 901","_id":"1"},{"_id":"11","name":"SFB 901 - Subproject B3"},{"_id":"3","name":"SFB 901 - Project Area B"}],"language":[{"iso":"eng"}],"publication":"Proceedings of the 32th IFIP International Conference on Testing Software and Systems (ICTSS)","type":"conference","status":"public"},{"publication_identifier":{"issn":["1420-3049"]},"publication_status":"published","intvolume":"        25","citation":{"chicago":"Ojha, Deepak, and Thomas D. Kühne. “‘On-The-Fly’ Calculation of the Vibrational Sum-Frequency Generation Spectrum at the Air-Water Interface.” <i>Molecules</i> 25 (2020). <a href=\"https://doi.org/10.3390/molecules25173939\">https://doi.org/10.3390/molecules25173939</a>.","ieee":"D. Ojha and T. D. Kühne, “‘On-The-Fly’ Calculation of the Vibrational Sum-Frequency Generation Spectrum at the Air-Water Interface,” <i>Molecules</i>, vol. 25, 2020.","ama":"Ojha D, Kühne TD. “On-The-Fly” Calculation of the Vibrational Sum-Frequency Generation Spectrum at the Air-Water Interface. <i>Molecules</i>. 2020;25. doi:<a href=\"https://doi.org/10.3390/molecules25173939\">10.3390/molecules25173939</a>","bibtex":"@article{Ojha_Kühne_2020, title={“On-The-Fly” Calculation of the Vibrational Sum-Frequency Generation Spectrum at the Air-Water Interface}, volume={25}, DOI={<a href=\"https://doi.org/10.3390/molecules25173939\">10.3390/molecules25173939</a>}, number={3939}, journal={Molecules}, author={Ojha, Deepak and Kühne, Thomas D.}, year={2020} }","short":"D. Ojha, T.D. Kühne, Molecules 25 (2020).","mla":"Ojha, Deepak, and Thomas D. Kühne. “‘On-The-Fly’ Calculation of the Vibrational Sum-Frequency Generation Spectrum at the Air-Water Interface.” <i>Molecules</i>, vol. 25, 3939, 2020, doi:<a href=\"https://doi.org/10.3390/molecules25173939\">10.3390/molecules25173939</a>.","apa":"Ojha, D., &#38; Kühne, T. D. (2020). “On-The-Fly” Calculation of the Vibrational Sum-Frequency Generation Spectrum at the Air-Water Interface. <i>Molecules</i>, <i>25</i>. <a href=\"https://doi.org/10.3390/molecules25173939\">https://doi.org/10.3390/molecules25173939</a>"},"year":"2020","volume":25,"date_created":"2020-09-25T08:34:34Z","author":[{"first_name":"Deepak","last_name":"Ojha","full_name":"Ojha, Deepak"},{"full_name":"Kühne, Thomas D.","last_name":"Kühne","first_name":"Thomas D."}],"date_updated":"2022-01-06T06:54:09Z","doi":"10.3390/molecules25173939","title":"“On-The-Fly” Calculation of the Vibrational Sum-Frequency Generation Spectrum at the Air-Water Interface","publication":"Molecules","type":"journal_article","status":"public","abstract":[{"text":"<jats:p>In the present work, we provide an electronic structure based method for the “on-the-fly” determination of vibrational sum frequency generation (v-SFG) spectra. The predictive power of this scheme is demonstrated at the air-water interface. While the instantaneous fluctuations in dipole moment are obtained using the maximally localized Wannier functions, the fluctuations in polarizability are approximated to be proportional to the second moment of Wannier functions. The spectrum henceforth obtained captures the signatures of hydrogen bond stretching, bending, as well as low-frequency librational modes.</jats:p>","lang":"eng"}],"department":[{"_id":"304"}],"user_id":"71692","_id":"19679","project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"language":[{"iso":"eng"}],"article_number":"3939"},{"abstract":[{"lang":"eng","text":"This is the second part of a project on the foundations of first-principle calculations of the electron transport in crystals at finite temperatures, aiming at a predictive first-principles platform that combines ab-initio molecular dynamics (AIMD) and a finite-temperature Kubo-formula with dissipation for thermally disordered crystalline phases. The latter are encoded in an ergodic dynamical system (Ω,G,dP), where Ω is the configuration space of the atomic degrees of freedom, G is the space group acting on Ω and dP is the ergodic Gibbs measure relative to the G-action. We first demonstrate how to pass from the continuum Kohn–Sham theory to a discrete atomic-orbitals based formalism without breaking the covariance of the physical observables w.r.t. (Ω,G,dP). Then we show how to implement the Kubo-formula, investigate its self-averaging property and derive an optimal finite-volume approximation for it. We also describe a numerical innovation that made possible AIMD simulations with longer orbits and elaborate on the details of our simulations. Lastly, we present numerical results on the transport coefficients of crystal silicon at different temperatures."}],"status":"public","publication":"Annals of Physics","type":"journal_article","language":[{"iso":"eng"}],"_id":"19680","project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"department":[{"_id":"304"}],"user_id":"71692","year":"2020","page":"168290","intvolume":"       421","citation":{"ieee":"T. Kühne, J. J. Heske, and E. Prodan, “Disordered crystals from first principles II: Transport coefficients,” <i>Annals of Physics</i>, vol. 421, p. 168290, 2020.","chicago":"Kühne, Thomas, Julian Joachim Heske, and Emil Prodan. “Disordered Crystals from First Principles II: Transport Coefficients.” <i>Annals of Physics</i> 421 (2020): 168290. <a href=\"https://doi.org/10.1016/j.aop.2020.168290\">https://doi.org/10.1016/j.aop.2020.168290</a>.","ama":"Kühne T, Heske JJ, Prodan E. Disordered crystals from first principles II: Transport coefficients. <i>Annals of Physics</i>. 2020;421:168290. doi:<a href=\"https://doi.org/10.1016/j.aop.2020.168290\">https://doi.org/10.1016/j.aop.2020.168290</a>","mla":"Kühne, Thomas, et al. “Disordered Crystals from First Principles II: Transport Coefficients.” <i>Annals of Physics</i>, vol. 421, 2020, p. 168290, doi:<a href=\"https://doi.org/10.1016/j.aop.2020.168290\">https://doi.org/10.1016/j.aop.2020.168290</a>.","bibtex":"@article{Kühne_Heske_Prodan_2020, title={Disordered crystals from first principles II: Transport coefficients}, volume={421}, DOI={<a href=\"https://doi.org/10.1016/j.aop.2020.168290\">https://doi.org/10.1016/j.aop.2020.168290</a>}, journal={Annals of Physics}, author={Kühne, Thomas and Heske, Julian Joachim and Prodan, Emil}, year={2020}, pages={168290} }","short":"T. Kühne, J.J. Heske, E. Prodan, Annals of Physics 421 (2020) 168290.","apa":"Kühne, T., Heske, J. J., &#38; Prodan, E. (2020). Disordered crystals from first principles II: Transport coefficients. <i>Annals of Physics</i>, <i>421</i>, 168290. <a href=\"https://doi.org/10.1016/j.aop.2020.168290\">https://doi.org/10.1016/j.aop.2020.168290</a>"},"publication_identifier":{"issn":["0003-4916"]},"title":"Disordered crystals from first principles II: Transport coefficients","doi":"https://doi.org/10.1016/j.aop.2020.168290","date_updated":"2022-01-06T06:54:10Z","volume":421,"author":[{"id":"49079","full_name":"Kühne, Thomas","last_name":"Kühne","first_name":"Thomas"},{"first_name":"Julian Joachim","id":"53238","full_name":"Heske, Julian Joachim","last_name":"Heske"},{"last_name":"Prodan","full_name":"Prodan, Emil","first_name":"Emil"}],"date_created":"2020-09-25T08:38:00Z"},{"publication":"Molecular Physics","type":"journal_article","status":"public","department":[{"_id":"304"}],"user_id":"71692","_id":"19681","project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"language":[{"iso":"eng"}],"publication_identifier":{"issn":["0026-8976","1362-3028"]},"publication_status":"published","page":"1-6","citation":{"ieee":"M. A. Salem and T. D. Kühne, “Insight from energy decomposition analysis on a hydrogen-bond-mediated mechanism for on-water catalysis,” <i>Molecular Physics</i>, pp. 1–6, 2020.","chicago":"Salem, M. Alaraby, and Thomas D. Kühne. “Insight from Energy Decomposition Analysis on a Hydrogen-Bond-Mediated Mechanism for on-Water Catalysis.” <i>Molecular Physics</i>, 2020, 1–6. <a href=\"https://doi.org/10.1080/00268976.2020.1797920\">https://doi.org/10.1080/00268976.2020.1797920</a>.","ama":"Salem MA, Kühne TD. Insight from energy decomposition analysis on a hydrogen-bond-mediated mechanism for on-water catalysis. <i>Molecular Physics</i>. 2020:1-6. doi:<a href=\"https://doi.org/10.1080/00268976.2020.1797920\">10.1080/00268976.2020.1797920</a>","apa":"Salem, M. A., &#38; Kühne, T. D. (2020). Insight from energy decomposition analysis on a hydrogen-bond-mediated mechanism for on-water catalysis. <i>Molecular Physics</i>, 1–6. <a href=\"https://doi.org/10.1080/00268976.2020.1797920\">https://doi.org/10.1080/00268976.2020.1797920</a>","bibtex":"@article{Salem_Kühne_2020, title={Insight from energy decomposition analysis on a hydrogen-bond-mediated mechanism for on-water catalysis}, DOI={<a href=\"https://doi.org/10.1080/00268976.2020.1797920\">10.1080/00268976.2020.1797920</a>}, journal={Molecular Physics}, author={Salem, M. Alaraby and Kühne, Thomas D.}, year={2020}, pages={1–6} }","mla":"Salem, M. Alaraby, and Thomas D. Kühne. “Insight from Energy Decomposition Analysis on a Hydrogen-Bond-Mediated Mechanism for on-Water Catalysis.” <i>Molecular Physics</i>, 2020, pp. 1–6, doi:<a href=\"https://doi.org/10.1080/00268976.2020.1797920\">10.1080/00268976.2020.1797920</a>.","short":"M.A. Salem, T.D. Kühne, Molecular Physics (2020) 1–6."},"year":"2020","author":[{"first_name":"M. Alaraby","full_name":"Salem, M. Alaraby","last_name":"Salem"},{"full_name":"Kühne, Thomas D.","last_name":"Kühne","first_name":"Thomas D."}],"date_created":"2020-09-25T08:40:24Z","date_updated":"2022-01-06T06:54:10Z","doi":"10.1080/00268976.2020.1797920","title":"Insight from energy decomposition analysis on a hydrogen-bond-mediated mechanism for on-water catalysis"},{"abstract":[{"lang":"ger","text":"Peer-Berater*innen nehmen während eines Beratungsgespräches teilweise intuitiv, teilweise bewusst verschiedene\r\nRollen ein. Dieser Artikel soll einen Beitrag zur Reflexion über das Spannungsverhältnis zwischen der Experten- und\r\nProzessberatungsrolle leisten, um die Selbstprofessionalisierung in der Rolleneinnahme zu fördern. Dafür werden\r\nauf theoretischer Ebene die konträren Arbeitsweisen beleuchtet, auf denen beide Rollen basieren. Zur Betrachtung\r\nvon möglichen Einflussfaktoren auf die Rolleneinnahme wird ein selbst entwickeltes Modell präsentiert, welches zum\r\nAustausch über diese Faktoren motivieren soll. Zuletzt wird eine praktische Möglichkeit zur gezielten Reflexion über\r\ndie eigene Rolleneinnahme anhand eines Fragebogens vorgeschlagen."}],"publication":"Journal der Schreibberatung","language":[{"iso":"ger"}],"keyword":["Expertenberatung","Prozessberatung","Rolleneinnahme","Selbstprofessionalisierung"],"year":"2020","issue":"1","quality_controlled":"1","title":"Wann bin ich wer? Peer-Berater*innen im Spannungsverhältnis","date_created":"2020-09-25T09:17:43Z","publisher":"wbv","status":"public","type":"journal_article","department":[{"_id":"424"}],"user_id":"53425","_id":"19684","page":"59-70","intvolume":"        19","citation":{"apa":"Lebock, S. (2020). Wann bin ich wer? Peer-Berater*innen im Spannungsverhältnis. <i>Journal der Schreibberatung</i>, <i>19</i>(1), 59–70. <a href=\"https://doi.org/10.3278/JOS2001W008\">https://doi.org/10.3278/JOS2001W008</a>","mla":"Lebock, Sarah. “Wann bin ich wer? Peer-Berater*innen im Spannungsverhältnis.” <i>Journal der Schreibberatung</i>, vol. 19, no. 1, wbv, 2020, pp. 59–70, doi:<a href=\"https://doi.org/10.3278/JOS2001W008\">10.3278/JOS2001W008</a>.","short":"S. Lebock, Journal der Schreibberatung 19 (2020) 59–70.","bibtex":"@article{Lebock_2020, title={Wann bin ich wer? Peer-Berater*innen im Spannungsverhältnis}, volume={19}, DOI={<a href=\"https://doi.org/10.3278/JOS2001W008\">10.3278/JOS2001W008</a>}, number={1}, journal={Journal der Schreibberatung}, publisher={wbv}, author={Lebock, Sarah}, year={2020}, pages={59–70} }","ieee":"S. Lebock, “Wann bin ich wer? 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Numerische Simulation von Gravidestillationsapparaten zur Trennung eines binären Ethanol/Wasser-Gemisches. <i>10. ProcessNet-Jahrestagung Und 34. DECHEMA-Jahrestagung Der Biotechnologen </i>. 10. ProcessNet-Jahrestagung und 34. DECHEMA-Jahrestagung der Biotechnologen 2020, Aachen.","mla":"Wende, Marc, et al. “Numerische Simulation von Gravidestillationsapparaten Zur Trennung Eines Binären Ethanol/Wasser-Gemisches.” <i>10. ProcessNet-Jahrestagung Und 34. DECHEMA-Jahrestagung Der Biotechnologen </i>, 2020.","bibtex":"@inproceedings{Wende_Philippi_Kenig_2020, series={10. ProcessNet-Jahrestagung und 34. DECHEMA-Jahrestagung der Biotechnologen }, title={Numerische Simulation von Gravidestillationsapparaten zur Trennung eines binären Ethanol/Wasser-Gemisches}, booktitle={10. ProcessNet-Jahrestagung und 34. DECHEMA-Jahrestagung der Biotechnologen }, author={Wende, Marc and Philippi, Kai and Kenig, Eugeny}, year={2020}, collection={10. ProcessNet-Jahrestagung und 34. DECHEMA-Jahrestagung der Biotechnologen } }","short":"M. Wende, K. Philippi, E. Kenig, in: 10. ProcessNet-Jahrestagung Und 34. DECHEMA-Jahrestagung Der Biotechnologen , 2020.","ama":"Wende M, Philippi K, Kenig E. Numerische Simulation von Gravidestillationsapparaten zur Trennung eines binären Ethanol/Wasser-Gemisches. In: <i>10. ProcessNet-Jahrestagung Und 34. DECHEMA-Jahrestagung Der Biotechnologen </i>. 10. ProcessNet-Jahrestagung und 34. DECHEMA-Jahrestagung der Biotechnologen . ; 2020.","chicago":"Wende, Marc, Kai Philippi, and Eugeny Kenig. “Numerische Simulation von Gravidestillationsapparaten Zur Trennung Eines Binären Ethanol/Wasser-Gemisches.” In <i>10. ProcessNet-Jahrestagung Und 34. DECHEMA-Jahrestagung Der Biotechnologen </i>. 10. ProcessNet-Jahrestagung Und 34. DECHEMA-Jahrestagung Der Biotechnologen , 2020.","ieee":"M. Wende, K. Philippi, and E. Kenig, “Numerische Simulation von Gravidestillationsapparaten zur Trennung eines binären Ethanol/Wasser-Gemisches,” presented at the 10. ProcessNet-Jahrestagung und 34. DECHEMA-Jahrestagung der Biotechnologen 2020, Aachen, 2020."},"year":"2020"},{"file_date_updated":"2020-09-29T07:46:30Z","language":[{"iso":"eng"}],"ddc":["040"],"department":[{"_id":"276"}],"user_id":"16205","_id":"19739","project":[{"name":"SFB 901","_id":"1"},{"_id":"4","name":"SFB 901 - Project Area C"},{"_id":"17","name":"SFB 901 - Subproject C5"}],"status":"public","file":[{"file_size":194137,"file_name":"DESRIST2020_ABMDT_REVISED.pdf","file_id":"19762","access_level":"closed","date_updated":"2020-09-29T07:46:30Z","date_created":"2020-09-29T07:46:30Z","creator":"dsz","success":1,"relation":"main_file","content_type":"application/pdf"}],"publication":"Proceedings of the 15th International Conference on Design Science Research in Information Systems and Technology (DESRIST)","type":"conference","conference":{"name":"15th International Conference on Design Science Research in Information Systems and Technology (DESRIST)","location":"Virtual Conference/Workshop"},"title":"Active Business Model Development Tools: Design Requirements","date_created":"2020-09-28T14:23:55Z","author":[{"first_name":"Daniel","id":"36372","full_name":"Szopinski, Daniel","last_name":"Szopinski"}],"date_updated":"2022-01-06T06:54:11Z","citation":{"apa":"Szopinski, D. (2020). Active Business Model Development Tools: Design Requirements. In <i>Proceedings of the 15th International Conference on Design Science Research in Information Systems and Technology (DESRIST)</i>. Virtual Conference/Workshop.","mla":"Szopinski, Daniel. “Active Business Model Development Tools: Design Requirements.” <i>Proceedings of the 15th International Conference on Design Science Research in Information Systems and Technology (DESRIST)</i>, 2020.","bibtex":"@inproceedings{Szopinski_2020, title={Active Business Model Development Tools: Design Requirements}, booktitle={Proceedings of the 15th International Conference on Design Science Research in Information Systems and Technology (DESRIST)}, author={Szopinski, Daniel}, year={2020} }","short":"D. Szopinski, in: Proceedings of the 15th International Conference on Design Science Research in Information Systems and Technology (DESRIST), 2020.","ama":"Szopinski D. Active Business Model Development Tools: Design Requirements. In: <i>Proceedings of the 15th International Conference on Design Science Research in Information Systems and Technology (DESRIST)</i>. ; 2020.","chicago":"Szopinski, Daniel. “Active Business Model Development Tools: Design Requirements.” In <i>Proceedings of the 15th International Conference on Design Science Research in Information Systems and Technology (DESRIST)</i>, 2020.","ieee":"D. Szopinski, “Active Business Model Development Tools: Design Requirements,” in <i>Proceedings of the 15th International Conference on Design Science Research in Information Systems and Technology (DESRIST)</i>, Virtual Conference/Workshop, 2020."},"year":"2020","has_accepted_license":"1"},{"citation":{"ama":"Szopinski D. Exploring design principles for stimuli in business model development tools. In: <i>Proceedings of the 41st International Conference on Information Systems (ICIS)</i>. ; 2020.","ieee":"D. 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Ditter, T. Aubel, and G. Meschut, “Simple Determination of Fast Curing Parameters for Bonded Structures,” <i>adhesion ADHESIVES + SEALANTS</i>, no. 1, 2020.","chicago":"Ditter, Jan, Tobias Aubel, and Gerson Meschut. “Simple Determination of Fast Curing Parameters for Bonded Structures.” <i>Adhesion ADHESIVES + SEALANTS</i>, no. 1 (2020).","ama":"Ditter J, Aubel T, Meschut G. Simple Determination of Fast Curing Parameters for Bonded Structures. <i>adhesion ADHESIVES + SEALANTS</i>. 2020;(1).","apa":"Ditter, J., Aubel, T., &#38; Meschut, G. (2020). Simple Determination of Fast Curing Parameters for Bonded Structures. <i>Adhesion ADHESIVES + SEALANTS</i>, (1).","short":"J. Ditter, T. Aubel, G. 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(2020). Toss a Coin to your Host - How Guests End up Paying for the Cost of Regulatory Policies. In <i>Proceedings of the 41th International Conference on Information Systems (ICIS)</i>. Virtual Conference/Workshop.","short":"M. Müller, J. Neumann, D. Gutt, D. Kundisch, in: Proceedings of the 41th International Conference on Information Systems (ICIS), 2020.","bibtex":"@inproceedings{Müller_Neumann_Gutt_Kundisch_2020, title={Toss a Coin to your Host - How Guests End up Paying for the Cost of Regulatory Policies}, booktitle={Proceedings of the 41th International Conference on Information Systems (ICIS)}, author={Müller, Michelle and Neumann, Jürgen and Gutt, Dominik and Kundisch, Dennis}, year={2020} }","mla":"Müller, Michelle, et al. “Toss a Coin to Your Host - How Guests End up Paying for the Cost of Regulatory Policies.” <i>Proceedings of the 41th International Conference on Information Systems (ICIS)</i>, 2020.","ieee":"M. Müller, J. Neumann, D. Gutt, and D. Kundisch, “Toss a Coin to your Host - How Guests End up Paying for the Cost of Regulatory Policies,” in <i>Proceedings of the 41th International Conference on Information Systems (ICIS)</i>, Virtual Conference/Workshop, 2020.","chicago":"Müller, Michelle, Jürgen Neumann, Dominik Gutt, and Dennis Kundisch. “Toss a Coin to Your Host - How Guests End up Paying for the Cost of Regulatory Policies.” In <i>Proceedings of the 41th International Conference on Information Systems (ICIS)</i>, 2020.","ama":"Müller M, Neumann J, Gutt D, Kundisch D. Toss a Coin to your Host - How Guests End up Paying for the Cost of Regulatory Policies. In: <i>Proceedings of the 41th International Conference on Information Systems (ICIS)</i>. ; 2020."},"language":[{"iso":"eng"}],"_id":"19782","project":[{"name":"SFB 901","_id":"1"},{"_id":"2","name":"SFB 901 - Project Area A"},{"_id":"8","name":"SFB 901 - Subproject A4"},{"_id":"4","name":"SFB 901 - Project Area C"},{"name":"SFB 901 - Subproject C5","_id":"17"}],"department":[{"_id":"276"}],"user_id":"16205","status":"public","publication":"Proceedings of the 41th International Conference on Information Systems (ICIS)","type":"conference"},{"date_updated":"2022-01-06T06:54:13Z","volume":200,"author":[{"first_name":"Amala","last_name":"Elizabeth","full_name":"Elizabeth, Amala"},{"full_name":"Conradi, Hauke","last_name":"Conradi","first_name":"Hauke"},{"first_name":"Sudhir","last_name":"K. Sahoo","full_name":"K. Sahoo, Sudhir"},{"first_name":"Tim","last_name":"Kodalle","full_name":"Kodalle, Tim"},{"first_name":"Christian","last_name":"A. Kaufmann","full_name":"A. Kaufmann, Christian"},{"first_name":"Thomas","full_name":"Kühne, Thomas","id":"49079","last_name":"Kühne"},{"first_name":"Hossein","id":"71051","full_name":"Mirhosseini, Hossein","orcid":"https://orcid.org/0000-0001-6179-1545","last_name":"Mirhosseini"},{"first_name":"Daniel","full_name":"Abou-Ras, Daniel","last_name":"Abou-Ras"},{"first_name":"Harry","full_name":"Mönig, Harry","last_name":"Mönig"}],"date_created":"2020-10-01T09:19:55Z","title":"Correlating facet orientation, defect-level density and dipole layer formation at the surface of polycrystalline CuInSe2 thin films","doi":"https://doi.org/10.1016/j.actamat.2020.09.028","publication_identifier":{"issn":["1359-6454"]},"year":"2020","intvolume":"       200","citation":{"ama":"Elizabeth A, Conradi H, K. Sahoo S, et al. Correlating facet orientation, defect-level density and dipole layer formation at the surface of polycrystalline CuInSe2 thin films. <i>Acta Materialia</i>. 2020;200. doi:<a href=\"https://doi.org/10.1016/j.actamat.2020.09.028\">https://doi.org/10.1016/j.actamat.2020.09.028</a>","chicago":"Elizabeth, Amala, Hauke Conradi, Sudhir K. Sahoo, Tim Kodalle, Christian A. Kaufmann, Thomas Kühne, Hossein Mirhosseini, Daniel Abou-Ras, and Harry Mönig. “Correlating Facet Orientation, Defect-Level Density and Dipole Layer Formation at the Surface of Polycrystalline CuInSe2 Thin Films.” <i>Acta Materialia</i> 200 (2020). <a href=\"https://doi.org/10.1016/j.actamat.2020.09.028\">https://doi.org/10.1016/j.actamat.2020.09.028</a>.","ieee":"A. Elizabeth <i>et al.</i>, “Correlating facet orientation, defect-level density and dipole layer formation at the surface of polycrystalline CuInSe2 thin films,” <i>Acta Materialia</i>, vol. 200, 2020.","bibtex":"@article{Elizabeth_Conradi_K. Sahoo_Kodalle_A. Kaufmann_Kühne_Mirhosseini_Abou-Ras_Mönig_2020, title={Correlating facet orientation, defect-level density and dipole layer formation at the surface of polycrystalline CuInSe2 thin films}, volume={200}, DOI={<a href=\"https://doi.org/10.1016/j.actamat.2020.09.028\">https://doi.org/10.1016/j.actamat.2020.09.028</a>}, journal={Acta Materialia}, author={Elizabeth, Amala and Conradi, Hauke and K. Sahoo, Sudhir and Kodalle, Tim and A. Kaufmann, Christian and Kühne, Thomas and Mirhosseini, Hossein and Abou-Ras, Daniel and Mönig, Harry}, year={2020} }","mla":"Elizabeth, Amala, et al. “Correlating Facet Orientation, Defect-Level Density and Dipole Layer Formation at the Surface of Polycrystalline CuInSe2 Thin Films.” <i>Acta Materialia</i>, vol. 200, 2020, doi:<a href=\"https://doi.org/10.1016/j.actamat.2020.09.028\">https://doi.org/10.1016/j.actamat.2020.09.028</a>.","short":"A. Elizabeth, H. Conradi, S. K. Sahoo, T. Kodalle, C. A. Kaufmann, T. Kühne, H. Mirhosseini, D. Abou-Ras, H. Mönig, Acta Materialia 200 (2020).","apa":"Elizabeth, A., Conradi, H., K. Sahoo, S., Kodalle, T., A. Kaufmann, C., Kühne, T., … Mönig, H. (2020). Correlating facet orientation, defect-level density and dipole layer formation at the surface of polycrystalline CuInSe2 thin films. <i>Acta Materialia</i>, <i>200</i>. <a href=\"https://doi.org/10.1016/j.actamat.2020.09.028\">https://doi.org/10.1016/j.actamat.2020.09.028</a>"},"_id":"19823","project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"department":[{"_id":"613"}],"user_id":"71692","keyword":["Chalcopyrite absorber","Scanning tunneling spectroscopy","Electron backscatter diffraction","Density functional theory","Surface dipole"],"language":[{"iso":"eng"}],"publication":"Acta Materialia","type":"journal_article","abstract":[{"text":"Individual grains of chalcopyrite solar cell absorbers can facet in different crystallographic directions at their surfaces. To gain a deeper understanding of the junction formation in these devices, we correlate variations in the surface facet orientation with the defect electronic properties. We use a combined analytical approach based on scanning tunneling spectroscopy (STS), scanning electron microscopy, and electron back scatter diffraction (EBSD), where we perform these experiments on identical surface areas as small as 2 × 2 µm2 with a lateral resolution well below 50 nm. The topography of the absorber surfaces indicates two main morphological features: micro-faceted, long basalt-like columns and their short nano-faceted terminations. Our STS results reveal that the long columns exhibit spectral signatures typical for the presence of pronounced oxidation-induced surface dipoles in conjunction with an increased density of electronic defect levels. In contrast, the nano-faceted terminations of the basalt-like columns are largely passivated in terms of electronic defect levels within the band gap region. Corresponding crystallographic data based on EBSD experiments show that the surface of the basalt-like columns can be assigned to intrinsically polar facet orientations, while the passivated terminations are assigned to non-polar planes. Ab-initio calculations suggest that the polar surfaces are more prone to oxidation and resulting O-induced defects, in comparison to non-polar planes. Our results emphasize the correlation between morphology, surface facet orientations and surface electronic properties. Furthermore, this work aids in gaining a fundamental understanding of oxidation induced lateral inhomogeneities in view of the p-n junction formation in chalcopyrite thin-film solar cells.","lang":"eng"}],"status":"public"},{"title":"Research and Consulting in Data-Driven Strategic Product Planning","date_updated":"2022-01-06T06:54:14Z","author":[{"last_name":"Meyer","orcid":"0000-0003-0606-7321","id":"77201","full_name":"Meyer, Maurice","first_name":"Maurice"},{"first_name":"Maximilian","full_name":"Frank, Maximilian","last_name":"Frank"},{"first_name":"Melina","full_name":"Massmann, Melina","last_name":"Massmann"},{"first_name":"Roman","last_name":"Dumitrescu","id":"16190","full_name":"Dumitrescu, Roman"}],"date_created":"2020-10-02T16:19:50Z","year":"2020","citation":{"apa":"Meyer, M., Frank, M., Massmann, M., &#38; Dumitrescu, R. (2020). Research and Consulting in Data-Driven Strategic Product Planning. <i>Proceedings of The 11th International Multi-Conference on Complexity, Informatics and Cybernetics (IMCIC 2020)</i>.","short":"M. Meyer, M. Frank, M. Massmann, R. Dumitrescu, Proceedings of The 11th International Multi-Conference on Complexity, Informatics and Cybernetics (IMCIC 2020) (2020).","mla":"Meyer, Maurice, et al. “Research and Consulting in Data-Driven Strategic Product Planning.” <i>Proceedings of The 11th International Multi-Conference on Complexity, Informatics and Cybernetics (IMCIC 2020)</i>, 2020.","bibtex":"@article{Meyer_Frank_Massmann_Dumitrescu_2020, title={Research and Consulting in Data-Driven Strategic Product Planning}, journal={Proceedings of The 11th International Multi-Conference on Complexity, Informatics and Cybernetics (IMCIC 2020)}, author={Meyer, Maurice and Frank, Maximilian and Massmann, Melina and Dumitrescu, Roman}, year={2020} }","ama":"Meyer M, Frank M, Massmann M, Dumitrescu R. Research and Consulting in Data-Driven Strategic Product Planning. <i>Proceedings of The 11th International Multi-Conference on Complexity, Informatics and Cybernetics (IMCIC 2020)</i>. 2020.","ieee":"M. Meyer, M. Frank, M. Massmann, and R. Dumitrescu, “Research and Consulting in Data-Driven Strategic Product Planning,” <i>Proceedings of The 11th International Multi-Conference on Complexity, Informatics and Cybernetics (IMCIC 2020)</i>, 2020.","chicago":"Meyer, Maurice, Maximilian Frank, Melina Massmann, and Roman Dumitrescu. “Research and Consulting in Data-Driven Strategic Product Planning.” <i>Proceedings of The 11th International Multi-Conference on Complexity, Informatics and Cybernetics (IMCIC 2020)</i>, 2020."},"article_type":"original","language":[{"iso":"eng"}],"_id":"19864","user_id":"77201","department":[{"_id":"563"}],"status":"public","type":"journal_article","publication":"Proceedings of The 11th International Multi-Conference on Complexity, Informatics and Cybernetics (IMCIC 2020)"},{"issue":"2","citation":{"ieee":"M. Meyer, M. Frank, M. Massmann, and R. Dumitrescu, “Research and Consulting in Data-Driven Strategic Product Planning,” <i>Journal of Systemics, Cybernetics and Informatics</i>, vol. 18, no. 2, pp. 55–61, 2020.","chicago":"Meyer, Maurice, Maximilian Frank, Melina Massmann, and Roman Dumitrescu. “Research and Consulting in Data-Driven Strategic Product Planning.” <i>Journal of Systemics, Cybernetics and Informatics</i> 18, no. 2 (2020): 55–61.","ama":"Meyer M, Frank M, Massmann M, Dumitrescu R. Research and Consulting in Data-Driven Strategic Product Planning. <i>Journal of Systemics, Cybernetics and Informatics</i>. 2020;18(2):55-61.","apa":"Meyer, M., Frank, M., Massmann, M., &#38; Dumitrescu, R. (2020). Research and Consulting in Data-Driven Strategic Product Planning. <i>Journal of Systemics, Cybernetics and Informatics</i>, <i>18</i>(2), 55–61.","short":"M. Meyer, M. Frank, M. Massmann, R. Dumitrescu, Journal of Systemics, Cybernetics and Informatics 18 (2020) 55–61.","bibtex":"@article{Meyer_Frank_Massmann_Dumitrescu_2020, title={Research and Consulting in Data-Driven Strategic Product Planning}, volume={18}, number={2}, journal={Journal of Systemics, Cybernetics and Informatics}, author={Meyer, Maurice and Frank, Maximilian and Massmann, Melina and Dumitrescu, Roman}, year={2020}, pages={55–61} }","mla":"Meyer, Maurice, et al. “Research and Consulting in Data-Driven Strategic Product Planning.” <i>Journal of Systemics, Cybernetics and Informatics</i>, vol. 18, no. 2, 2020, pp. 55–61."},"page":"55-61","intvolume":"        18","year":"2020","date_created":"2020-10-02T16:21:47Z","author":[{"last_name":"Meyer","orcid":"0000-0003-0606-7321","full_name":"Meyer, Maurice","id":"77201","first_name":"Maurice"},{"full_name":"Frank, Maximilian","last_name":"Frank","first_name":"Maximilian"},{"first_name":"Melina","full_name":"Massmann, Melina","last_name":"Massmann"},{"last_name":"Dumitrescu","id":"16190","full_name":"Dumitrescu, Roman","first_name":"Roman"}],"volume":18,"date_updated":"2022-01-06T06:54:14Z","title":"Research and Consulting in Data-Driven Strategic Product Planning","type":"journal_article","publication":"Journal of Systemics, Cybernetics and Informatics","status":"public","user_id":"77201","department":[{"_id":"563"}],"_id":"19866","language":[{"iso":"eng"}],"article_type":"original"},{"publication":"Journal of Economic Behavior & Organization","type":"journal_article","status":"public","_id":"19895","department":[{"_id":"186"},{"_id":"578"}],"user_id":"67265","language":[{"iso":"eng"}],"publication_identifier":{"issn":["0167-2681"]},"publication_status":"published","year":"2020","page":"503-522","intvolume":"       179","citation":{"apa":"Steiger, S., &#38; Pelster, M. (2020). Social interactions and asset pricing bubbles. <i>Journal of Economic Behavior &#38; Organization</i>, <i>179</i>, 503–522. <a href=\"https://doi.org/10.1016/j.jebo.2020.09.020\">https://doi.org/10.1016/j.jebo.2020.09.020</a>","bibtex":"@article{Steiger_Pelster_2020, title={Social interactions and asset pricing bubbles}, volume={179}, DOI={<a href=\"https://doi.org/10.1016/j.jebo.2020.09.020\">10.1016/j.jebo.2020.09.020</a>}, journal={Journal of Economic Behavior &#38; Organization}, author={Steiger, Sören and Pelster, Matthias}, year={2020}, pages={503–522} }","short":"S. Steiger, M. Pelster, Journal of Economic Behavior &#38; Organization 179 (2020) 503–522.","mla":"Steiger, Sören, and Matthias Pelster. “Social Interactions and Asset Pricing Bubbles.” <i>Journal of Economic Behavior &#38; Organization</i>, vol. 179, 2020, pp. 503–22, doi:<a href=\"https://doi.org/10.1016/j.jebo.2020.09.020\">10.1016/j.jebo.2020.09.020</a>.","chicago":"Steiger, Sören, and Matthias Pelster. “Social Interactions and Asset Pricing Bubbles.” <i>Journal of Economic Behavior &#38; Organization</i> 179 (2020): 503–22. <a href=\"https://doi.org/10.1016/j.jebo.2020.09.020\">https://doi.org/10.1016/j.jebo.2020.09.020</a>.","ieee":"S. Steiger and M. Pelster, “Social interactions and asset pricing bubbles,” <i>Journal of Economic Behavior &#38; Organization</i>, vol. 179, pp. 503–522, 2020.","ama":"Steiger S, Pelster M. Social interactions and asset pricing bubbles. <i>Journal of Economic Behavior &#38; Organization</i>. 2020;179:503-522. doi:<a href=\"https://doi.org/10.1016/j.jebo.2020.09.020\">10.1016/j.jebo.2020.09.020</a>"},"date_updated":"2022-01-06T06:54:14Z","volume":179,"date_created":"2020-10-06T06:17:16Z","author":[{"last_name":"Steiger","full_name":"Steiger, Sören","first_name":"Sören"},{"first_name":"Matthias","id":"67265","full_name":"Pelster, Matthias","last_name":"Pelster","orcid":" https://orcid.org/0000-0001-5740-2420"}],"title":"Social interactions and asset pricing bubbles","doi":"10.1016/j.jebo.2020.09.020"}]