[{"has_accepted_license":"1","status":"public","ddc":["620","670","660"],"user_id":"65415","publisher":"Informa UK Limited","_id":"64916","page":"1-24","citation":{"mla":"Al Trjman, Mohamad, et al. “Experimental Characterization and Numerical Analysis of the Influence of the CED Coating Process on Viscous Fingering Formation in Hybrid-Jointed Mixed Structures.” The Journal of Adhesion, Informa UK Limited, 2026, pp. 1–24, doi:10.1080/00218464.2026.2644394.","bibtex":"@article{Al Trjman_Beule_Teutenberg_Meschut_Riese_2026, title={Experimental characterization and numerical analysis of the influence of the CED coating process on viscous fingering formation in hybrid-jointed mixed structures}, DOI={10.1080/00218464.2026.2644394}, journal={The Journal of Adhesion}, publisher={Informa UK Limited}, author={Al Trjman, Mohamad and Beule, Felix and Teutenberg, Dominik and Meschut, Gerson and Riese, Julia}, year={2026}, pages={1–24} }","ama":"Al Trjman M, Beule F, Teutenberg D, Meschut G, Riese J. Experimental characterization and numerical analysis of the influence of the CED coating process on viscous fingering formation in hybrid-jointed mixed structures. The Journal of Adhesion. Published online 2026:1-24. doi:10.1080/00218464.2026.2644394","ieee":"M. Al Trjman, F. Beule, D. Teutenberg, G. Meschut, and J. Riese, “Experimental characterization and numerical analysis of the influence of the CED coating process on viscous fingering formation in hybrid-jointed mixed structures,” The Journal of Adhesion, pp. 1–24, 2026, doi: 10.1080/00218464.2026.2644394.","apa":"Al Trjman, M., Beule, F., Teutenberg, D., Meschut, G., & Riese, J. (2026). Experimental characterization and numerical analysis of the influence of the CED coating process on viscous fingering formation in hybrid-jointed mixed structures. The Journal of Adhesion, 1–24. https://doi.org/10.1080/00218464.2026.2644394","chicago":"Al Trjman, Mohamad, Felix Beule, Dominik Teutenberg, Gerson Meschut, and Julia Riese. “Experimental Characterization and Numerical Analysis of the Influence of the CED Coating Process on Viscous Fingering Formation in Hybrid-Jointed Mixed Structures.” The Journal of Adhesion, 2026, 1–24. https://doi.org/10.1080/00218464.2026.2644394.","short":"M. Al Trjman, F. Beule, D. Teutenberg, G. Meschut, J. Riese, The Journal of Adhesion (2026) 1–24."},"file_date_updated":"2026-03-14T18:50:31Z","oa":"1","article_type":"original","date_updated":"2026-03-14T19:04:46Z","publication_status":"published","author":[{"id":"65415","full_name":"Al Trjman, Mohamad","last_name":"Al Trjman","first_name":"Mohamad"},{"id":"66192","last_name":"Beule","first_name":"Felix","full_name":"Beule, Felix"},{"full_name":"Teutenberg, Dominik","last_name":"Teutenberg","first_name":"Dominik","id":"537"},{"last_name":"Meschut","first_name":"Gerson","orcid":"0000-0002-2763-1246","full_name":"Meschut, Gerson","id":"32056"},{"full_name":"Riese, Julia","first_name":"Julia","orcid":"0000-0002-3053-0534","last_name":"Riese","id":"101499"}],"publication_identifier":{"issn":["0021-8464","1545-5823"]},"year":"2026","title":"Experimental characterization and numerical analysis of the influence of the CED coating process on viscous fingering formation in hybrid-jointed mixed structures","doi":"10.1080/00218464.2026.2644394","language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1"}],"abstract":[{"lang":"eng","text":"The joining of dissimilar materials, such as steel and aluminum, entails significant challenges during thermal curing processes due to differing coefficients of thermal expansion. This study addresses the formation of “viscous fingering” instabilities in structural adhesive joints, which are induced by thermally driven relative displacements during the liquid phase of the adhesive. Using a component-like specimen “bridge specimen,” the dependency of this phenomenon on process temperature and structural stiffness (rivet distance) was characterized. Experimental results reveal that while the relative displacement scales cubically with the free buckling length, the resulting adhesive area reduction follows an exponential trend, leading to a loss of effective bond area of up to 79%, which significantly compromises the joint strength in automotive applications. To predict these process-induced defects, a thermo-chemo-viscoelastic-viscoplastic adhesive model implemented in LS-DYNA was applied. The model combines curing kinetics, viscoelastic relaxation, and pressure-dependent plasticity and features a geometric damage parameter (D) that captures the adhesive area reduction caused by viscous fingering as an exponential function of the accumulated normal strain in the liquid phase. This damage parameter, calibrated on base-specimen level, was transferred to the component geometry. The simulation demonstrated high predictive accuracy with a maximum deviation of the adhesive area reduction of 3.1% compared to experimental data. This validates the model’s capability to predict manufacturing-induced damage in complex hybrid structures solely based on thermal boundary conditions."}],"publication":"The Journal of Adhesion","department":[{"_id":"9"}],"keyword":["Adhesive area reduction","CED coating process","delta alpha problem","epoxy structural adhesive","influence of manufacture","multi-material design","numerical simulation (FEM)","relative displacements","viscous fingering (saffman-taylor-instability)."],"type":"journal_article","date_created":"2026-03-14T18:43:41Z","file":[{"file_id":"64917","content_type":"application/pdf","success":1,"relation":"main_file","date_updated":"2026-03-14T18:50:31Z","file_name":"Experimental characterization and numerical analysis of the influence of the CED coating process on viscous fingering formation in hybrid-jointed mixe.pdf","file_size":14668789,"access_level":"closed","date_created":"2026-03-14T18:50:31Z","creator":"mohamada"}]},{"type":"journal_article","keyword":["electric bus","multi-period planning","electric vehicle scheduling","charging infrastructure","fleet replacement"],"date_created":"2026-04-24T09:13:39Z","quality_controlled":"1","abstract":[{"lang":"eng","text":"This paper presents a holistic framework for the transition from diesel to electric bus networks,\r\ncrucial for meeting EU regulations targeting 100% zero-emission urban buses by\r\n2035. We employ a two-phase solution framework: in phase 1, we solve the Charging Location\r\nand Electric Vehicle Scheduling Problem to generate vehicle schedules that are feasible\r\nfor electric operation; in phase 2, these schedules serve as input to a multi-period transition\r\nplanning model that minimizes the total cost of ownership while determining fleet\r\nreplacement and charging infrastructure deployment. Our experiments show that schedules\r\nobtained from solving the integrated charging location and vehicle scheduling problem\r\nsignificantly outperform traditional methods, resulting in lower total cost of ownership. Additionally,\r\ntransition plans reduce local emissions by up to 85% compared to a diesel-only\r\nscenario. We find that vehicle rotations with long distances and sufficient idle time are\r\nprioritized for electrification, enabling earlier emission reductions and cost savings. This\r\nhighlights the importance of adopting vehicle scheduling tailored for electric buses, rather\r\nthan relying on legacy diesel schedules."}],"citation":{"bibtex":"@article{Stumpe_Rößler-von Saß_Natalia_Schryen, title={Impact of Vehicle Scheduling and Strategic Transition Planning on Zero-Emission Bus Systems}, journal={Transportation Research Interdisciplinary Perspectives}, author={Stumpe, Miriam and Rößler-von Saß, David and Natalia, Kliewer and Schryen, Guido} }","ama":"Stumpe M, Rößler-von Saß D, Natalia K, Schryen G. Impact of Vehicle Scheduling and Strategic Transition Planning on Zero-Emission Bus Systems. Transportation Research Interdisciplinary Perspectives.","short":"M. Stumpe, D. Rößler-von Saß, K. Natalia, G. Schryen, Transportation Research Interdisciplinary Perspectives (n.d.).","chicago":"Stumpe, Miriam, David Rößler-von Saß, Kliewer Natalia, and Guido Schryen. “Impact of Vehicle Scheduling and Strategic Transition Planning on Zero-Emission Bus Systems.” Transportation Research Interdisciplinary Perspectives, n.d.","ieee":"M. Stumpe, D. Rößler-von Saß, K. Natalia, and G. Schryen, “Impact of Vehicle Scheduling and Strategic Transition Planning on Zero-Emission Bus Systems,” Transportation Research Interdisciplinary Perspectives.","apa":"Stumpe, M., Rößler-von Saß, D., Natalia, K., & Schryen, G. (n.d.). Impact of Vehicle Scheduling and Strategic Transition Planning on Zero-Emission Bus Systems. Transportation Research Interdisciplinary Perspectives.","mla":"Stumpe, Miriam, et al. “Impact of Vehicle Scheduling and Strategic Transition Planning on Zero-Emission Bus Systems.” Transportation Research Interdisciplinary Perspectives."},"publication":"Transportation Research Interdisciplinary Perspectives","user_id":"40298","_id":"65495","language":[{"iso":"eng"}],"article_type":"original","date_updated":"2026-04-27T09:31:42Z","publication_status":"accepted","author":[{"id":"64135","full_name":"Stumpe, Miriam","last_name":"Stumpe","first_name":"Miriam"},{"full_name":"Rößler-von Saß, David","last_name":"Rößler-von Saß","first_name":"David"},{"last_name":"Natalia","first_name":"Kliewer","full_name":"Natalia, Kliewer"},{"id":"72850","last_name":"Schryen","first_name":"Guido","full_name":"Schryen, Guido"}],"title":"Impact of Vehicle Scheduling and Strategic Transition Planning on Zero-Emission Bus Systems","year":"2026","status":"public"},{"author":[{"first_name":"Henning Christoph","orcid":"0009-0006-8106-2132","last_name":"Rahlf","full_name":"Rahlf, Henning Christoph","id":"56955"},{"first_name":"Denis","last_name":"Divkovic","full_name":"Divkovic, Denis","id":"89059"},{"full_name":"Knorr, Lukas","last_name":"Knorr","orcid":"0009-0005-4727-7511","first_name":"Lukas","id":"90391"},{"id":"88614","last_name":"Schlosser","first_name":"Florian","full_name":"Schlosser, Florian"},{"first_name":"Henning","last_name":"Meschede","orcid":"0000-0002-1538-089X","full_name":"Meschede, Henning","id":"86954"}],"publication_identifier":{"issn":["0196-8904"]},"title":"Flexible operation strategies for heat pumps in district heating systems using dynamic electricity prices","year":"2026","intvolume":" 364","article_type":"original","date_updated":"2026-06-03T06:44:31Z","publication_status":"published","language":[{"iso":"eng"}],"main_file_link":[{"url":"https://www.sciencedirect.com/science/article/pii/S0196890426006837","open_access":"1"}],"article_number":"121714","doi":"10.1016/j.enconman.2026.121714","publication":"Energy Conversion and Management","abstract":[{"lang":"eng","text":"Electrifying the heating sector is essential for achieving global climate targets like the Paris Agreement’s 1.5 °C goal. In Germany, where 80 % of household energy goes to space heating and hot water, shifting to low-carbon solutions is crucial. Fossil-fuelled district heating networks can incorporate renewable energy via heat pumps, improving efficiency. Although heat pump design typically favours minimal temperature lifts, higher lifts can be economically viable with low electricity prices and abundant renewables. Adding thermal energy storage boosts operational flexibility. This study explores a flexible heat pump operation incorporating part load behaviour with a thermal energy storage in a German city’s district heating system to minimise costs and carbon dioxide emissions. Using a mixed-integer linear programming model, it examines the impact of temperature adjustments and storage on system efficiency. The results show that the integration of a heat pump in a district heating system reduces operating costs. Compared to a supply without a heat pump, with levelised cost of heating of 9.98 cent/kWhth and a fixed operating mode with costs between 9.96 cent/kWhth and 11.49 cent/kWhth, the flexible use results in lowest costs of 9.85 cent/kWhth, while also reducing overall CO2 emissions. Using a full factorial sensitivity analysis, the levelised cost of heating ranged between 9.15 cent/kWhth in the best case and 10.37 cent/kWhth in the worst case for the selected configuration."}],"date_created":"2026-06-03T06:34:27Z","department":[{"_id":"644"},{"_id":"534"}],"keyword":["Heat transition","Optimisation","Temperature flexibility","Decarbonisation","Multi energy"],"type":"journal_article","status":"public","_id":"65757","publisher":"Elsevier BV","volume":364,"user_id":"56955","citation":{"mla":"Rahlf, Henning Christoph, et al. “Flexible Operation Strategies for Heat Pumps in District Heating Systems Using Dynamic Electricity Prices.” Energy Conversion and Management, vol. 364, 121714, Elsevier BV, 2026, doi:10.1016/j.enconman.2026.121714.","bibtex":"@article{Rahlf_Divkovic_Knorr_Schlosser_Meschede_2026, title={Flexible operation strategies for heat pumps in district heating systems using dynamic electricity prices}, volume={364}, DOI={10.1016/j.enconman.2026.121714}, number={121714}, journal={Energy Conversion and Management}, publisher={Elsevier BV}, author={Rahlf, Henning Christoph and Divkovic, Denis and Knorr, Lukas and Schlosser, Florian and Meschede, Henning}, year={2026} }","ama":"Rahlf HC, Divkovic D, Knorr L, Schlosser F, Meschede H. Flexible operation strategies for heat pumps in district heating systems using dynamic electricity prices. Energy Conversion and Management. 2026;364. doi:10.1016/j.enconman.2026.121714","ieee":"H. C. Rahlf, D. Divkovic, L. Knorr, F. Schlosser, and H. Meschede, “Flexible operation strategies for heat pumps in district heating systems using dynamic electricity prices,” Energy Conversion and Management, vol. 364, Art. no. 121714, 2026, doi: 10.1016/j.enconman.2026.121714.","apa":"Rahlf, H. C., Divkovic, D., Knorr, L., Schlosser, F., & Meschede, H. (2026). Flexible operation strategies for heat pumps in district heating systems using dynamic electricity prices. Energy Conversion and Management, 364, Article 121714. https://doi.org/10.1016/j.enconman.2026.121714","chicago":"Rahlf, Henning Christoph, Denis Divkovic, Lukas Knorr, Florian Schlosser, and Henning Meschede. “Flexible Operation Strategies for Heat Pumps in District Heating Systems Using Dynamic Electricity Prices.” Energy Conversion and Management 364 (2026). https://doi.org/10.1016/j.enconman.2026.121714.","short":"H.C. Rahlf, D. Divkovic, L. Knorr, F. Schlosser, H. Meschede, Energy Conversion and Management 364 (2026)."},"project":[{"name":"FlexLabQuartier","_id":"1495"}],"oa":"1"},{"file_date_updated":"2026-06-13T06:45:51Z","citation":{"short":"M. Stumpe, D. Rößler-von Saß, N. Kliewer, G. Schryen, Transportation Research Interdisciplinary Perspectives 38 (2026).","chicago":"Stumpe, Miriam, David Rößler-von Saß, Natalia Kliewer, and Guido Schryen. “Impact of Vehicle Scheduling and Strategic Transition Planning on Zero-Emission Bus Systems.” Transportation Research Interdisciplinary Perspectives 38 (2026). https://doi.org/10.1016/j.trip.2026.102008.","apa":"Stumpe, M., Rößler-von Saß, D., Kliewer, N., & Schryen, G. (2026). Impact of vehicle scheduling and strategic transition planning on zero-emission bus systems. Transportation Research Interdisciplinary Perspectives, 38, Article 102008. https://doi.org/10.1016/j.trip.2026.102008","ieee":"M. Stumpe, D. Rößler-von Saß, N. Kliewer, and G. Schryen, “Impact of vehicle scheduling and strategic transition planning on zero-emission bus systems,” Transportation Research Interdisciplinary Perspectives, vol. 38, Art. no. 102008, 2026, doi: 10.1016/j.trip.2026.102008.","ama":"Stumpe M, Rößler-von Saß D, Kliewer N, Schryen G. Impact of vehicle scheduling and strategic transition planning on zero-emission bus systems. Transportation Research Interdisciplinary Perspectives. 2026;38. doi:10.1016/j.trip.2026.102008","bibtex":"@article{Stumpe_Rößler-von Saß_Kliewer_Schryen_2026, title={Impact of vehicle scheduling and strategic transition planning on zero-emission bus systems}, volume={38}, DOI={10.1016/j.trip.2026.102008}, number={102008}, journal={Transportation Research Interdisciplinary Perspectives}, publisher={Elsevier BV}, author={Stumpe, Miriam and Rößler-von Saß, David and Kliewer, Natalia and Schryen, Guido}, year={2026} }","mla":"Stumpe, Miriam, et al. “Impact of Vehicle Scheduling and Strategic Transition Planning on Zero-Emission Bus Systems.” Transportation Research Interdisciplinary Perspectives, vol. 38, 102008, Elsevier BV, 2026, doi:10.1016/j.trip.2026.102008."},"_id":"65857","publisher":"Elsevier BV","user_id":"72850","ddc":["000"],"volume":38,"status":"public","has_accepted_license":"1","file":[{"content_type":"application/pdf","success":1,"file_id":"65858","access_level":"closed","file_size":1379145,"file_name":"ELSEVIER ARTICLE.pdf","date_updated":"2026-06-13T06:45:51Z","relation":"main_file","date_created":"2026-06-13T06:45:51Z","creator":"schryen"}],"date_created":"2026-06-13T06:38:22Z","type":"journal_article","keyword":["Electric bus","Multi-period planning","Electric vehicle scheduling","Charging infrastructure","Fleet replacement"],"department":[{"_id":"277"}],"publication":"Transportation Research Interdisciplinary Perspectives","abstract":[{"text":"This paper presents a holistic framework for the transition from diesel to electric bus networks, crucial for meeting EU regulations targeting 100% zero-emission urban buses by 2035. We employ a two-phase solution framework: in phase 1, we solve the Charging Location and Electric Vehicle Scheduling Problem to generate vehicle schedules that are feasible for electric operation; in phase 2, these schedules serve as input to a multi-period transition planning model that minimizes the total cost of ownership while determining fleet replacement and charging infrastructure deployment. Our experiments show that schedules obtained from solving the integrated charging location and vehicle scheduling problem significantly outperform traditional methods, resulting in lower total cost of ownership. Additionally, transition plans reduce local emissions by up to 85% compared to a diesel-only scenario. We find that vehicle rotations with long distances and sufficient idle time are prioritized for electrification, enabling earlier emission reductions and cost savings. This highlights the importance of adopting vehicle scheduling tailored for electric buses, rather than relying on legacy diesel schedules.","lang":"eng"}],"article_number":"102008","language":[{"iso":"eng"}],"doi":"10.1016/j.trip.2026.102008","title":"Impact of vehicle scheduling and strategic transition planning on zero-emission bus systems","year":"2026","author":[{"id":"64135","full_name":"Stumpe, Miriam","last_name":"Stumpe","first_name":"Miriam"},{"full_name":"Rößler-von Saß, David","last_name":"Rößler-von Saß","first_name":"David"},{"full_name":"Kliewer, Natalia","first_name":"Natalia","last_name":"Kliewer"},{"full_name":"Schryen, Guido","last_name":"Schryen","first_name":"Guido","id":"72850"}],"publication_identifier":{"issn":["2590-1982"]},"publication_status":"published","date_updated":"2026-06-13T06:46:16Z","article_type":"original","intvolume":" 38"},{"publication":"Energy Conversion and Management: X","abstract":[{"text":"Expanding renewable energy sources is essential for a sustainable energy supply but challenges grid stability, as the volatility of solar and wind causes periods of over- and undersupply. Private households are central to this transition, combining dynamic consumption with decentralised generation. This paper presents a multi-agent microgrid simulation built on the Mesa framework, focusing on the heterogeneous objectives and technological capabilities of residential participants. Households are modelled as autonomous agents with individual strategies, while a dedicated “grid agent” represents the distribution system operator and regulates the microgrid in a grid-supportive manner. The emission factor serves as the key indicator for grid-friendly behaviour. Results show that in summer, unmanaged PV feed-in from heterogeneous households causes substantial grid stress and balancing effort for the distribution system operator. Dynamic electricity prices can incentivise grid-friendly dispatch, but their effectiveness depends on the correlation between price signals and renewable availability and cannot guarantee grid-supportive behaviour alone. The grid agent reliably improves the grid-supportive coefficient, yet its operating strategy, for instance additional peak-reduction objectives, can interfere with price-based incentives. Effective demand-side management therefore requires careful analysis of stakeholder interactions. Building on this insight, thepaper provides a basic framework for the design, implementation, and assessment of both integrated and individual energy management strategies within a microgrid environment. By simulating the dynamic interactions among system participants and strategies, it enables comprehensive evaluation of their collective impact on the grid, supporting the development of robust solutions for future electricity networks.","lang":"eng"}],"date_created":"2026-06-19T12:27:48Z","keyword":["Microgrid","Decentralised Energy Systems","Multi-Agent System","Residential Demand-Side Management","Optimisation"],"type":"journal_article","department":[{"_id":"644"}],"title":"Towards Stakeholder-Aware Demand-Side management assessment in heterogeneous residential Microgrids: A Multi-Agent approach","year":"2026","author":[{"id":"56918","first_name":"Kevin","last_name":"Henne","full_name":"Henne, Kevin"},{"full_name":"Rahlf, Henning Christoph","orcid":"0009-0006-8106-2132","last_name":"Rahlf","first_name":"Henning Christoph","id":"56955"},{"id":"94950","first_name":"Marius","last_name":"Naumann","full_name":"Naumann, Marius"},{"full_name":"Meschede, Henning","first_name":"Henning","last_name":"Meschede","orcid":"0000-0002-1538-089X","id":"86954"}],"publication_identifier":{"issn":["2590-1745"]},"date_updated":"2026-06-19T12:41:33Z","publication_status":"published","intvolume":" 31","language":[{"iso":"eng"}],"doi":"https://doi.org/10.1016/j.ecmx.2026.102030","citation":{"chicago":"Henne, Kevin, Henning Christoph Rahlf, Marius Naumann, and Henning Meschede. “Towards Stakeholder-Aware Demand-Side Management Assessment in Heterogeneous Residential Microgrids: A Multi-Agent Approach.” Energy Conversion and Management: X 31 (2026): 102030. https://doi.org/10.1016/j.ecmx.2026.102030.","short":"K. Henne, H.C. Rahlf, M. Naumann, H. Meschede, Energy Conversion and Management: X 31 (2026) 102030.","ieee":"K. Henne, H. C. Rahlf, M. Naumann, and H. Meschede, “Towards Stakeholder-Aware Demand-Side management assessment in heterogeneous residential Microgrids: A Multi-Agent approach,” Energy Conversion and Management: X, vol. 31, p. 102030, 2026, doi: https://doi.org/10.1016/j.ecmx.2026.102030.","apa":"Henne, K., Rahlf, H. C., Naumann, M., & Meschede, H. (2026). Towards Stakeholder-Aware Demand-Side management assessment in heterogeneous residential Microgrids: A Multi-Agent approach. Energy Conversion and Management: X, 31, 102030. https://doi.org/10.1016/j.ecmx.2026.102030","bibtex":"@article{Henne_Rahlf_Naumann_Meschede_2026, title={Towards Stakeholder-Aware Demand-Side management assessment in heterogeneous residential Microgrids: A Multi-Agent approach}, volume={31}, DOI={https://doi.org/10.1016/j.ecmx.2026.102030}, journal={Energy Conversion and Management: X}, publisher={Elsevier}, author={Henne, Kevin and Rahlf, Henning Christoph and Naumann, Marius and Meschede, Henning}, year={2026}, pages={102030} }","ama":"Henne K, Rahlf HC, Naumann M, Meschede H. Towards Stakeholder-Aware Demand-Side management assessment in heterogeneous residential Microgrids: A Multi-Agent approach. Energy Conversion and Management: X. 2026;31:102030. doi:https://doi.org/10.1016/j.ecmx.2026.102030","mla":"Henne, Kevin, et al. “Towards Stakeholder-Aware Demand-Side Management Assessment in Heterogeneous Residential Microgrids: A Multi-Agent Approach.” Energy Conversion and Management: X, vol. 31, Elsevier, 2026, p. 102030, doi:https://doi.org/10.1016/j.ecmx.2026.102030."},"status":"public","conference":{"name":"20th SDEWES conference","start_date":"2025-10-05","location":"Dubrovnik","end_date":"2025-10-10"},"has_accepted_license":"1","page":"102030","_id":"66001","publisher":"Elsevier","user_id":"56918","volume":31},{"main_file_link":[{"open_access":"1","url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC12312635/"}],"language":[{"iso":"eng"}],"publication_status":"published","date_updated":"2025-09-17T13:38:18Z","article_type":"original","intvolume":" 12","year":"2025","title":"The power of combined modalities in interactive robot learning","author":[{"full_name":"Beierling, Helen","first_name":"Helen","last_name":"Beierling"},{"full_name":"Beierling, Robin ","last_name":"Beierling","first_name":"Robin "},{"full_name":"Vollmer, Anna-Lisa","last_name":"Vollmer","first_name":"Anna-Lisa"}],"keyword":["human-robot interaction","human-in-the-loop learning","reinforcement learning","interactive robot learning","multi-modal feedback","learning from demonstration","preference-based learning","scaffolding in robot learning"],"type":"journal_article","file":[{"access_level":"closed","file_size":36978223,"file_name":"frobt-12-1598968.pdf","date_updated":"2025-09-17T13:36:09Z","relation":"main_file","success":1,"content_type":"application/pdf","file_id":"61331","creator":"helebeen","date_created":"2025-09-17T13:36:09Z"}],"date_created":"2024-07-26T08:35:24Z","extern":"1","abstract":[{"lang":"eng","text":"This study contributes to the evolving field of robot learning in interaction\r\nwith humans, examining the impact of diverse input modalities on learning\r\noutcomes. It introduces the concept of \"meta-modalities\" which encapsulate\r\nadditional forms of feedback beyond the traditional preference and scalar\r\nfeedback mechanisms. Unlike prior research that focused on individual\r\nmeta-modalities, this work evaluates their combined effect on learning\r\noutcomes. Through a study with human participants, we explore user preferences\r\nfor these modalities and their impact on robot learning performance. Our\r\nfindings reveal that while individual modalities are perceived differently,\r\ntheir combination significantly improves learning behavior and usability. This\r\nresearch not only provides valuable insights into the optimization of\r\nhuman-robot interactive task learning but also opens new avenues for enhancing\r\nthe interactive freedom and scaffolding capabilities provided to users in such\r\nsettings."}],"publication":"Frontiers in Robotics and AI","user_id":"50995","ddc":["004"],"volume":12,"funded_apc":"1","_id":"55400","publisher":"Frontiers ","has_accepted_license":"1","status":"public","oa":"1","project":[{"name":"TRR 318 - B5: TRR 318 - Subproject B5","_id":"123"}],"file_date_updated":"2025-09-17T13:36:09Z","citation":{"mla":"Beierling, Helen, et al. “The Power of Combined Modalities in Interactive Robot Learning.” Frontiers in Robotics and AI, vol. 12, Frontiers , 2025.","bibtex":"@article{Beierling_Beierling_Vollmer_2025, title={The power of combined modalities in interactive robot learning}, volume={12}, journal={Frontiers in Robotics and AI}, publisher={Frontiers }, author={Beierling, Helen and Beierling, Robin and Vollmer, Anna-Lisa}, year={2025} }","ama":"Beierling H, Beierling R, Vollmer A-L. The power of combined modalities in interactive robot learning. Frontiers in Robotics and AI. 2025;12.","ieee":"H. Beierling, R. Beierling, and A.-L. Vollmer, “The power of combined modalities in interactive robot learning,” Frontiers in Robotics and AI, vol. 12, 2025.","apa":"Beierling, H., Beierling, R., & Vollmer, A.-L. (2025). The power of combined modalities in interactive robot learning. Frontiers in Robotics and AI, 12.","chicago":"Beierling, Helen, Robin Beierling, and Anna-Lisa Vollmer. “The Power of Combined Modalities in Interactive Robot Learning.” Frontiers in Robotics and AI 12 (2025).","short":"H. Beierling, R. Beierling, A.-L. Vollmer, Frontiers in Robotics and AI 12 (2025)."}},{"year":"2025","title":"Evaluating oneAPI I/O Pipes in a Case Study of Scaling a SYCL Jacobi Solver to multiple FPGAs","author":[{"id":"100625","first_name":"Christoph","last_name":"Alt","full_name":"Alt, Christoph"},{"id":"16153","orcid":"0000-0001-5728-9982","last_name":"Plessl","first_name":"Christian","full_name":"Plessl, Christian"},{"id":"3145","first_name":"Tobias","last_name":"Kenter","full_name":"Kenter, Tobias"}],"publication_identifier":{"isbn":["9798400713606"]},"date_updated":"2025-11-04T09:47:26Z","main_file_link":[{"open_access":"1"}],"language":[{"iso":"eng"}],"series_title":"IWOCL ’25","doi":"10.1145/3731125.3731131","publication":"Proceedings of the 13th International Workshop on OpenCL and SYCL","abstract":[{"text":"In the context of high-performance computing (HPC) for distributed workloads, individual field-programmable gate arrays (FPGAs) need efficient ways to exchange data, which requires network infrastructure and software abstractions. Dedicated multi-FPGA clusters provide inter-FPGA networks for direct device to device communication. The oneAPI high-level synthesis toolchain offers I/O pipes to allow user kernels to interact with the networking ports of the FPGA board. In this work, we evaluate using oneAPI I/O pipes for direct FPGA-to-FPGA communication by scaling a SYCL implementation of a Jacobi solver on up to 25 FPGAs in the Noctua 2 cluster. We see good results in weak and strong scaling experiments.","lang":"eng"}],"date_created":"2025-11-04T09:45:23Z","keyword":["Multi-FPGA","High-level Synthesis","oneAPI","FPGA"],"type":"conference","department":[{"_id":"27"},{"_id":"518"}],"status":"public","publisher":"Association for Computing Machinery","_id":"62066","user_id":"3145","citation":{"mla":"Alt, Christoph, et al. “Evaluating OneAPI I/O Pipes in a Case Study of Scaling a SYCL Jacobi Solver to Multiple FPGAs.” Proceedings of the 13th International Workshop on OpenCL and SYCL, Association for Computing Machinery, 2025, doi:10.1145/3731125.3731131.","bibtex":"@inproceedings{Alt_Plessl_Kenter_2025, place={New York, NY, USA}, series={IWOCL ’25}, title={Evaluating oneAPI I/O Pipes in a Case Study of Scaling a SYCL Jacobi Solver to multiple FPGAs}, DOI={10.1145/3731125.3731131}, booktitle={Proceedings of the 13th International Workshop on OpenCL and SYCL}, publisher={Association for Computing Machinery}, author={Alt, Christoph and Plessl, Christian and Kenter, Tobias}, year={2025}, collection={IWOCL ’25} }","ama":"Alt C, Plessl C, Kenter T. Evaluating oneAPI I/O Pipes in a Case Study of Scaling a SYCL Jacobi Solver to multiple FPGAs. In: Proceedings of the 13th International Workshop on OpenCL and SYCL. IWOCL ’25. Association for Computing Machinery; 2025. doi:10.1145/3731125.3731131","ieee":"C. Alt, C. Plessl, and T. Kenter, “Evaluating oneAPI I/O Pipes in a Case Study of Scaling a SYCL Jacobi Solver to multiple FPGAs,” 2025, doi: 10.1145/3731125.3731131.","apa":"Alt, C., Plessl, C., & Kenter, T. (2025). Evaluating oneAPI I/O Pipes in a Case Study of Scaling a SYCL Jacobi Solver to multiple FPGAs. Proceedings of the 13th International Workshop on OpenCL and SYCL. https://doi.org/10.1145/3731125.3731131","short":"C. Alt, C. Plessl, T. Kenter, in: Proceedings of the 13th International Workshop on OpenCL and SYCL, Association for Computing Machinery, New York, NY, USA, 2025.","chicago":"Alt, Christoph, Christian Plessl, and Tobias Kenter. “Evaluating OneAPI I/O Pipes in a Case Study of Scaling a SYCL Jacobi Solver to Multiple FPGAs.” In Proceedings of the 13th International Workshop on OpenCL and SYCL. IWOCL ’25. New York, NY, USA: Association for Computing Machinery, 2025. https://doi.org/10.1145/3731125.3731131."},"quality_controlled":"1","project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"place":"New York, NY, USA","oa":"1"},{"title":"An Evolutionary Approach for the Computation of ∈-Locally Optimal Solutions for Multi-Objective Multimodal Optimization","status":"public","year":"2025","author":[{"first_name":"Carlos","last_name":"Hernández","full_name":"Hernández, Carlos"},{"full_name":"Rodriguez-Fernandez, Angel E.","last_name":"Rodriguez-Fernandez","first_name":"Angel E."},{"full_name":"Schäpermeier, Lennart","first_name":"Lennart","last_name":"Schäpermeier"},{"first_name":"Oliver","last_name":"Cuate","full_name":"Cuate, Oliver"},{"id":"100740","full_name":"Trautmann, Heike","last_name":"Trautmann","first_name":"Heike","orcid":"0000-0002-9788-8282"},{"full_name":"Schütze, Oliver","first_name":"Oliver","last_name":"Schütze"}],"date_updated":"2025-12-12T06:13:51Z","page":"1-1","_id":"63053","language":[{"iso":"eng"}],"user_id":"15504","doi":"10.1109/TEVC.2025.3637276","publication":"IEEE Transactions on Evolutionary Computation","citation":{"bibtex":"@article{Hernández_Rodriguez-Fernandez_Schäpermeier_Cuate_Trautmann_Schütze_2025, title={An Evolutionary Approach for the Computation of ∈-Locally Optimal Solutions for Multi-Objective Multimodal Optimization}, DOI={10.1109/TEVC.2025.3637276}, journal={IEEE Transactions on Evolutionary Computation}, author={Hernández, Carlos and Rodriguez-Fernandez, Angel E. and Schäpermeier, Lennart and Cuate, Oliver and Trautmann, Heike and Schütze, Oliver}, year={2025}, pages={1–1} }","ama":"Hernández C, Rodriguez-Fernandez AE, Schäpermeier L, Cuate O, Trautmann H, Schütze O. An Evolutionary Approach for the Computation of ∈-Locally Optimal Solutions for Multi-Objective Multimodal Optimization. IEEE Transactions on Evolutionary Computation. Published online 2025:1-1. doi:10.1109/TEVC.2025.3637276","mla":"Hernández, Carlos, et al. “An Evolutionary Approach for the Computation of ∈-Locally Optimal Solutions for Multi-Objective Multimodal Optimization.” IEEE Transactions on Evolutionary Computation, 2025, pp. 1–1, doi:10.1109/TEVC.2025.3637276.","chicago":"Hernández, Carlos, Angel E. Rodriguez-Fernandez, Lennart Schäpermeier, Oliver Cuate, Heike Trautmann, and Oliver Schütze. “An Evolutionary Approach for the Computation of ∈-Locally Optimal Solutions for Multi-Objective Multimodal Optimization.” IEEE Transactions on Evolutionary Computation, 2025, 1–1. https://doi.org/10.1109/TEVC.2025.3637276.","short":"C. Hernández, A.E. Rodriguez-Fernandez, L. Schäpermeier, O. Cuate, H. Trautmann, O. Schütze, IEEE Transactions on Evolutionary Computation (2025) 1–1.","ieee":"C. Hernández, A. E. Rodriguez-Fernandez, L. Schäpermeier, O. Cuate, H. Trautmann, and O. Schütze, “An Evolutionary Approach for the Computation of ∈-Locally Optimal Solutions for Multi-Objective Multimodal Optimization,” IEEE Transactions on Evolutionary Computation, pp. 1–1, 2025, doi: 10.1109/TEVC.2025.3637276.","apa":"Hernández, C., Rodriguez-Fernandez, A. E., Schäpermeier, L., Cuate, O., Trautmann, H., & Schütze, O. (2025). An Evolutionary Approach for the Computation of ∈-Locally Optimal Solutions for Multi-Objective Multimodal Optimization. IEEE Transactions on Evolutionary Computation, 1–1. https://doi.org/10.1109/TEVC.2025.3637276"},"date_created":"2025-12-12T06:13:06Z","keyword":["Optimization","Evolutionary computation","Hands","Proposals","Convergence","Computational efficiency","Artificial intelligence","Accuracy","Approximation algorithms","Aerospace electronics","Multi-objective optimization","evolutionary algorithms","nearly optimal solutions","multimodal optimization","archiving","continuation"],"type":"journal_article","department":[{"_id":"819"}]},{"user_id":"15504","doi":"10.1109/TEVC.2024.3458855","page":"1-1","_id":"56221","language":[{"iso":"eng"}],"date_updated":"2024-09-24T08:01:47Z","title":"Finding ϵ-Locally Optimal Solutions for Multi-Objective Multimodal Optimization","status":"public","year":"2024","author":[{"last_name":"Rodriguez-Fernandez","first_name":"Angel E.","full_name":"Rodriguez-Fernandez, Angel E."},{"first_name":"Lennart","last_name":"Schäpermeier","full_name":"Schäpermeier, Lennart"},{"full_name":"Hernández, Carlos","last_name":"Hernández","first_name":"Carlos"},{"full_name":"Kerschke, Pascal","last_name":"Kerschke","first_name":"Pascal"},{"last_name":"Trautmann","orcid":"0000-0002-9788-8282","first_name":"Heike","full_name":"Trautmann, Heike","id":"100740"},{"full_name":"Schütze, Oliver","last_name":"Schütze","first_name":"Oliver"}],"type":"journal_article","keyword":["Optimization","Evolutionary computation","Approximation algorithms","Benchmark testing","Vectors","Surveys","Pareto optimization","multi-objective optimization","evolutionary computation","multimodal optimization","local solutions"],"date_created":"2024-09-24T08:01:14Z","publication":"IEEE Transactions on Evolutionary Computation","citation":{"mla":"Rodriguez-Fernandez, Angel E., et al. “Finding ϵ-Locally Optimal Solutions for Multi-Objective Multimodal Optimization.” IEEE Transactions on Evolutionary Computation, 2024, pp. 1–1, doi:10.1109/TEVC.2024.3458855.","ama":"Rodriguez-Fernandez AE, Schäpermeier L, Hernández C, Kerschke P, Trautmann H, Schütze O. Finding ϵ-Locally Optimal Solutions for Multi-Objective Multimodal Optimization. IEEE Transactions on Evolutionary Computation. Published online 2024:1-1. doi:10.1109/TEVC.2024.3458855","bibtex":"@article{Rodriguez-Fernandez_Schäpermeier_Hernández_Kerschke_Trautmann_Schütze_2024, title={Finding ϵ-Locally Optimal Solutions for Multi-Objective Multimodal Optimization}, DOI={10.1109/TEVC.2024.3458855}, journal={IEEE Transactions on Evolutionary Computation}, author={Rodriguez-Fernandez, Angel E. and Schäpermeier, Lennart and Hernández, Carlos and Kerschke, Pascal and Trautmann, Heike and Schütze, Oliver}, year={2024}, pages={1–1} }","apa":"Rodriguez-Fernandez, A. E., Schäpermeier, L., Hernández, C., Kerschke, P., Trautmann, H., & Schütze, O. (2024). Finding ϵ-Locally Optimal Solutions for Multi-Objective Multimodal Optimization. IEEE Transactions on Evolutionary Computation, 1–1. https://doi.org/10.1109/TEVC.2024.3458855","ieee":"A. E. Rodriguez-Fernandez, L. Schäpermeier, C. Hernández, P. Kerschke, H. Trautmann, and O. Schütze, “Finding ϵ-Locally Optimal Solutions for Multi-Objective Multimodal Optimization,” IEEE Transactions on Evolutionary Computation, pp. 1–1, 2024, doi: 10.1109/TEVC.2024.3458855.","short":"A.E. Rodriguez-Fernandez, L. Schäpermeier, C. Hernández, P. Kerschke, H. Trautmann, O. Schütze, IEEE Transactions on Evolutionary Computation (2024) 1–1.","chicago":"Rodriguez-Fernandez, Angel E., Lennart Schäpermeier, Carlos Hernández, Pascal Kerschke, Heike Trautmann, and Oliver Schütze. “Finding ϵ-Locally Optimal Solutions for Multi-Objective Multimodal Optimization.” IEEE Transactions on Evolutionary Computation, 2024, 1–1. https://doi.org/10.1109/TEVC.2024.3458855."}},{"date_updated":"2026-04-02T04:31:53Z","publication_status":"published","year":"2024","status":"public","title":"Overcoming Lemon Markets with Business Reputation Ecosystem – A Multi-agent Simulation on Monetary Ratings","conference":{"location":"Würzburg"},"author":[{"last_name":"Ibrahimli","first_name":"Ulvi","full_name":"Ibrahimli, Ulvi"},{"full_name":"Hemmrich, Simon","first_name":"Simon","last_name":"Hemmrich"},{"full_name":"Zauke, Simon","last_name":"Zauke","first_name":"Simon"},{"first_name":"Axel","last_name":"Winkelmann","full_name":"Winkelmann, Axel"}],"jel":["C30","A12","D4","D82","L14"],"user_id":"83557","main_file_link":[{"open_access":"1","url":"https://www.researchgate.net/publication/382338551_Overcoming_Lemon_Markets_with_Business_Reputation_Ecosystem_-A_Multi-agent_Simulation_on_Monetary_Ratings_Research_Paper"}],"_id":"56636","language":[{"iso":"eng"}],"quality_controlled":"1","abstract":[{"text":"Abstract. Business reputation ecosystems are a widely untapped research field. In these ecosystems, agents can selectively exchange (monetary) ratings to in-form about the experienced quality in a market. We build a model for conducting a multi-agent simulation that can be used to simulate and evaluate business rep-utation ecosystems as a new system class. We explore the factual occurring vol-untary payment to create positive (pay) or negative ratings (no pay), selling rat-ings selectively to alleviate information asymmetry, and the workings of counter-ratings to prevent buyers' dishonest ratings. Thereby, we analyze, among others, agent profitability, the occurrence of dishonest ratings, and reputation bias and sensitivity. The results provide simulation-based empirical evidence that the con-cept of monetary reputation systems provides necessary incentives for participa-tion, and high-quality sellers and honest buyers benefit from such a system. The results indicate that counter-ratings prompt buyers","lang":"eng"}],"publication":"19. Internationale Tagung Wirtschaftsinformatik (WI24)","citation":{"ama":"Ibrahimli U, Hemmrich S, Zauke S, Winkelmann A. Overcoming Lemon Markets with Business Reputation Ecosystem – A Multi-agent Simulation on Monetary Ratings. In: 19. Internationale Tagung Wirtschaftsinformatik (WI24). ; 2024.","bibtex":"@inproceedings{Ibrahimli_Hemmrich_Zauke_Winkelmann_2024, title={Overcoming Lemon Markets with Business Reputation Ecosystem – A Multi-agent Simulation on Monetary Ratings}, booktitle={19. Internationale Tagung Wirtschaftsinformatik (WI24)}, author={Ibrahimli, Ulvi and Hemmrich, Simon and Zauke, Simon and Winkelmann, Axel}, year={2024} }","mla":"Ibrahimli, Ulvi, et al. “Overcoming Lemon Markets with Business Reputation Ecosystem – A Multi-Agent Simulation on Monetary Ratings.” 19. Internationale Tagung Wirtschaftsinformatik (WI24), 2024.","chicago":"Ibrahimli, Ulvi, Simon Hemmrich, Simon Zauke, and Axel Winkelmann. “Overcoming Lemon Markets with Business Reputation Ecosystem – A Multi-Agent Simulation on Monetary Ratings.” In 19. Internationale Tagung Wirtschaftsinformatik (WI24), 2024.","short":"U. Ibrahimli, S. Hemmrich, S. Zauke, A. Winkelmann, in: 19. Internationale Tagung Wirtschaftsinformatik (WI24), 2024.","apa":"Ibrahimli, U., Hemmrich, S., Zauke, S., & Winkelmann, A. (2024). Overcoming Lemon Markets with Business Reputation Ecosystem – A Multi-agent Simulation on Monetary Ratings. 19. Internationale Tagung Wirtschaftsinformatik (WI24).","ieee":"U. Ibrahimli, S. Hemmrich, S. Zauke, and A. Winkelmann, “Overcoming Lemon Markets with Business Reputation Ecosystem – A Multi-agent Simulation on Monetary Ratings,” Würzburg, 2024."},"type":"conference","keyword":["Reputation System","Payment as Rating","Multi-Agent Simulation","Lemon Markets"],"oa":"1","date_created":"2024-10-16T07:36:56Z"},{"citation":{"chicago":"Özcan, Leon, Timm Fichtler, Benjamin Kasten, Christian Koldewey, and Roman Dumitrescu. “Interview Study on Strategy Options for Platform Operation in B2B Markets,” 2023.","short":"L. Özcan, T. Fichtler, B. Kasten, C. Koldewey, R. Dumitrescu, in: 2023.","ieee":"L. Özcan, T. Fichtler, B. Kasten, C. Koldewey, and R. Dumitrescu, “Interview Study on Strategy Options for Platform Operation in B2B Markets,” presented at the ISPIM Innovation Conference, Ljubljana, 2023.","apa":"Özcan, L., Fichtler, T., Kasten, B., Koldewey, C., & Dumitrescu, R. (2023). Interview Study on Strategy Options for Platform Operation in B2B Markets. ISPIM Innovation Conference, Ljubljana.","bibtex":"@inproceedings{Özcan_Fichtler_Kasten_Koldewey_Dumitrescu_2023, title={Interview Study on Strategy Options for Platform Operation in B2B Markets}, author={Özcan, Leon and Fichtler, Timm and Kasten, Benjamin and Koldewey, Christian and Dumitrescu, Roman}, year={2023} }","ama":"Özcan L, Fichtler T, Kasten B, Koldewey C, Dumitrescu R. Interview Study on Strategy Options for Platform Operation in B2B Markets. In: ; 2023.","mla":"Özcan, Leon, et al. Interview Study on Strategy Options for Platform Operation in B2B Markets. 2023."},"keyword":["Digital Platform","Platform Strategy","Strategic Management","Platform Life Cycle","Interview Study","Business Model","Business-to-Business","Two-sided Market","Multi-sided Market"],"type":"conference","department":[{"_id":"563"}],"date_created":"2023-06-28T11:18:12Z","date_updated":"2023-06-28T11:18:31Z","status":"public","title":"Interview Study on Strategy Options for Platform Operation in B2B Markets","year":"2023","author":[{"id":"45137","full_name":"Özcan, Leon","last_name":"Özcan","first_name":"Leon"},{"last_name":"Fichtler","first_name":"Timm","orcid":"https://orcid.org/0000-0001-6034-4399","full_name":"Fichtler, Timm","id":"66731"},{"first_name":"Benjamin","last_name":"Kasten","full_name":"Kasten, Benjamin"},{"last_name":"Koldewey","orcid":"https://orcid.org/0000-0001-7992-6399","first_name":"Christian","full_name":"Koldewey, Christian","id":"43136"},{"id":"16190","last_name":"Dumitrescu","first_name":"Roman","full_name":"Dumitrescu, Roman"}],"conference":{"name":"ISPIM Innovation Conference","location":"Ljubljana"},"user_id":"66731","language":[{"iso":"eng"}],"_id":"45812"},{"user_id":"45137","ddc":["600"],"main_file_link":[{"url":"https://aisel.aisnet.org/amcis2022/sig_dite/sig_dite/15/"}],"language":[{"iso":"eng"}],"_id":"33991","date_updated":"2022-11-03T23:14:33Z","has_accepted_license":"1","title":"Why do Digital Platforms succeed or fail? - A Literature Review on Success and Failure Factors","status":"public","year":"2022","author":[{"id":"45137","full_name":"Özcan, Leon","last_name":"Özcan","first_name":"Leon"},{"first_name":"Christian","last_name":"Koldewey","full_name":"Koldewey, Christian"},{"last_name":"Duparc","first_name":"Estelle","full_name":"Duparc, Estelle"},{"full_name":"van der Valk, Hendrik","last_name":"van der Valk","first_name":"Hendrik"},{"full_name":"Otto, Boris","first_name":"Boris","last_name":"Otto"},{"first_name":"Roman","last_name":"Dumitrescu","full_name":"Dumitrescu, Roman"}],"conference":{"name":"28th Americas Conference on Information Systems (AMCIS)","location":"Minneapolis"},"type":"conference","keyword":["Digital Platform","Multi-sided Market","Two-sided Market","Success Factor","Failure Factor"],"department":[{"_id":"563"}],"file":[{"success":1,"content_type":"application/pdf","file_id":"33993","access_level":"closed","file_size":301409,"file_name":"[ÖKD+22]_Why do Digital Platforms succeed or fail - A Literature Review on Success and Failure Factors.pdf","date_updated":"2022-11-03T23:07:27Z","relation":"main_file","date_created":"2022-11-03T23:07:27Z","creator":"loezcan"}],"date_created":"2022-11-03T23:11:13Z","abstract":[{"lang":"eng","text":"In the course of digitalization, digital platforms are unleashing their full disruptive potential and are already dominating the first industries (e.g., hotel industry). As a result of this success, more and more companies want to build their own platforms and participate in the success. However, building and operating a digital platform involves multiple challenges and most of such ambitions fail. Since most digital platforms fail, strategic leadership of digital platforms must consider both success factors and reasons for platform failure. For this purpose, we conducted a systematic literature analysis and identified 24 success as well as failure factors in 9 dimensions. From a scientific perspective, the article provides a structured analysis of success and failure factors of digital platforms, which previously did not exist in literature. Practitioners can use the resulting knowledge base to successfully manage platform activities and avoid pitfalls."}],"file_date_updated":"2022-11-03T23:07:27Z","citation":{"mla":"Özcan, Leon, et al. Why Do Digital Platforms Succeed or Fail? - A Literature Review on Success and Failure Factors. 2022.","bibtex":"@inproceedings{Özcan_Koldewey_Duparc_van der Valk_Otto_Dumitrescu_2022, title={Why do Digital Platforms succeed or fail? - A Literature Review on Success and Failure Factors}, author={Özcan, Leon and Koldewey, Christian and Duparc, Estelle and van der Valk, Hendrik and Otto, Boris and Dumitrescu, Roman}, year={2022} }","ama":"Özcan L, Koldewey C, Duparc E, van der Valk H, Otto B, Dumitrescu R. Why do Digital Platforms succeed or fail? - A Literature Review on Success and Failure Factors. In: ; 2022.","ieee":"L. Özcan, C. Koldewey, E. Duparc, H. van der Valk, B. Otto, and R. Dumitrescu, “Why do Digital Platforms succeed or fail? - A Literature Review on Success and Failure Factors,” presented at the 28th Americas Conference on Information Systems (AMCIS), Minneapolis, 2022.","apa":"Özcan, L., Koldewey, C., Duparc, E., van der Valk, H., Otto, B., & Dumitrescu, R. (2022). Why do Digital Platforms succeed or fail? - A Literature Review on Success and Failure Factors. 28th Americas Conference on Information Systems (AMCIS), Minneapolis.","short":"L. Özcan, C. Koldewey, E. Duparc, H. van der Valk, B. Otto, R. Dumitrescu, in: 2022.","chicago":"Özcan, Leon, Christian Koldewey, Estelle Duparc, Hendrik van der Valk, Boris Otto, and Roman Dumitrescu. “Why Do Digital Platforms Succeed or Fail? - A Literature Review on Success and Failure Factors,” 2022."}},{"doi":"10.1007/978-3-030-97675-0_9","language":[{"iso":"eng"}],"date_updated":"2023-01-02T11:10:26Z","publication_status":"published","title":"A Damage Model for Corrosion Fatigue Due to Hydrogen Embrittlement","year":"2022","author":[{"full_name":"Shi, Yuhao","last_name":"Shi","first_name":"Yuhao"},{"last_name":"Harzheim","first_name":"Sven","full_name":"Harzheim, Sven"},{"first_name":"Martin","last_name":"Hofmann","full_name":"Hofmann, Martin"},{"full_name":"Wallmersperger, Thomas","first_name":"Thomas","last_name":"Wallmersperger"}],"publication_identifier":{"issn":["1869-8433","1869-8441"],"isbn":["9783030976743","9783030976750"]},"type":"book_chapter","keyword":["Hydrogen embrittlement","Fatigue","Continuum damage mechanics","Numerical simulation","Multi-field problem"],"department":[{"_id":"630"}],"date_created":"2022-12-05T20:53:13Z","abstract":[{"lang":"eng","text":"Predicting the durability of components subjected to mechanical load under environmental conditions leading to corrosion is one of the most challenging tasks in mechanical engineering. The demand for precise predictions increases with the desire of lightweight design in transportation due to environmental protection. Corrosion with its manifold of mechanisms often occurs together with the production of hydrogen by electrochemical reactions. Hydrogen embrittlement is one of the most feared damage mechanisms for metal constructions often leading to early and unexpected failure. Until now, predictions are mostly based on costly experiments. Hence, a rational predictive model based on the fundamentals of electrochemistry and damage mechanics has to be developed in order to reduce the costs. In this work, a first model approach based on classical continuum damage mechanics is presented to couple both, the damage induced by the mechanical stress and the hydrogen embrittlement. An elaborated two-scale model based on the selfconsistent theory is applied to describe the mechanical damage due to fatigue. The electrochemical kinetics are elucidated through the Langmuir adsorption isotherm and the diffusion equation to consider the impact of hydrogen embrittlement on the fatigue. The modeling of the mechanism of hydrogen embrittlement defines the progress of damage accumulation due to the electrochemistry. The durability results like the S-N diagram show the influence of hydrogen embrittlement by varying, e.g. the fatigue frequency or the stress ratio."}],"publication":"Material Modeling and Structural Mechanics","user_id":"14931","publisher":"Springer International Publishing","_id":"34209","status":"public","place":"Cham","project":[{"grant_number":"418701707","_id":"130","name":"TRR 285: TRR 285"},{"_id":"132","name":"TRR 285 - B: TRR 285 - Project Area B"},{"name":"TRR 285 – B03: TRR 285 - Subproject B03","_id":"142"}],"citation":{"mla":"Shi, Yuhao, et al. “A Damage Model for Corrosion Fatigue Due to Hydrogen Embrittlement.” Material Modeling and Structural Mechanics, Springer International Publishing, 2022, doi:10.1007/978-3-030-97675-0_9.","ama":"Shi Y, Harzheim S, Hofmann M, Wallmersperger T. A Damage Model for Corrosion Fatigue Due to Hydrogen Embrittlement. In: Material Modeling and Structural Mechanics. Springer International Publishing; 2022. doi:10.1007/978-3-030-97675-0_9","bibtex":"@inbook{Shi_Harzheim_Hofmann_Wallmersperger_2022, place={Cham}, title={A Damage Model for Corrosion Fatigue Due to Hydrogen Embrittlement}, DOI={10.1007/978-3-030-97675-0_9}, booktitle={Material Modeling and Structural Mechanics}, publisher={Springer International Publishing}, author={Shi, Yuhao and Harzheim, Sven and Hofmann, Martin and Wallmersperger, Thomas}, year={2022} }","apa":"Shi, Y., Harzheim, S., Hofmann, M., & Wallmersperger, T. (2022). A Damage Model for Corrosion Fatigue Due to Hydrogen Embrittlement. In Material Modeling and Structural Mechanics. Springer International Publishing. https://doi.org/10.1007/978-3-030-97675-0_9","ieee":"Y. Shi, S. Harzheim, M. Hofmann, and T. Wallmersperger, “A Damage Model for Corrosion Fatigue Due to Hydrogen Embrittlement,” in Material Modeling and Structural Mechanics, Cham: Springer International Publishing, 2022.","chicago":"Shi, Yuhao, Sven Harzheim, Martin Hofmann, and Thomas Wallmersperger. “A Damage Model for Corrosion Fatigue Due to Hydrogen Embrittlement.” In Material Modeling and Structural Mechanics. Cham: Springer International Publishing, 2022. https://doi.org/10.1007/978-3-030-97675-0_9.","short":"Y. Shi, S. Harzheim, M. Hofmann, T. Wallmersperger, in: Material Modeling and Structural Mechanics, Springer International Publishing, Cham, 2022."}},{"editor":[{"last_name":"Rudolph","first_name":"Günter","full_name":"Rudolph, Günter"},{"full_name":"Kononova, Anna V.","last_name":"Kononova","first_name":"Anna V."},{"full_name":"Aguirre, Hernán","last_name":"Aguirre","first_name":"Hernán"},{"last_name":"Kerschke","first_name":"Pascal","full_name":"Kerschke, Pascal"},{"first_name":"Gabriela","last_name":"Ochoa","full_name":"Ochoa, Gabriela"},{"full_name":"Tusar, Tea","last_name":"Tusar","first_name":"Tea"}],"user_id":"102979","_id":"48882","publisher":"Springer International Publishing","page":"192–206","status":"public","place":"Cham","citation":{"short":"J. Heins, J. Rook, L. Schäpermeier, P. Kerschke, J. Bossek, H. Trautmann, in: G. Rudolph, A.V. Kononova, H. Aguirre, P. Kerschke, G. Ochoa, T. Tusar (Eds.), Parallel Problem Solving from Nature (PPSN XVII), Springer International Publishing, Cham, 2022, pp. 192–206.","chicago":"Heins, Jonathan, Jeroen Rook, Lennart Schäpermeier, Pascal Kerschke, Jakob Bossek, and Heike Trautmann. “BBE: Basin-Based Evaluation of Multimodal Multi-Objective Optimization Problems.” In Parallel Problem Solving from Nature (PPSN XVII), edited by Günter Rudolph, Anna V. Kononova, Hernán Aguirre, Pascal Kerschke, Gabriela Ochoa, and Tea Tusar, 192–206. Lecture Notes in Computer Science. Cham: Springer International Publishing, 2022. https://doi.org/10.1007/978-3-031-14714-2_14.","ieee":"J. Heins, J. Rook, L. Schäpermeier, P. Kerschke, J. Bossek, and H. Trautmann, “BBE: Basin-Based Evaluation of Multimodal Multi-objective Optimization Problems,” in Parallel Problem Solving from Nature (PPSN XVII), 2022, pp. 192–206, doi: 10.1007/978-3-031-14714-2_14.","apa":"Heins, J., Rook, J., Schäpermeier, L., Kerschke, P., Bossek, J., & Trautmann, H. (2022). BBE: Basin-Based Evaluation of Multimodal Multi-objective Optimization Problems. In G. Rudolph, A. V. Kononova, H. Aguirre, P. Kerschke, G. Ochoa, & T. Tusar (Eds.), Parallel Problem Solving from Nature (PPSN XVII) (pp. 192–206). Springer International Publishing. https://doi.org/10.1007/978-3-031-14714-2_14","bibtex":"@inproceedings{Heins_Rook_Schäpermeier_Kerschke_Bossek_Trautmann_2022, place={Cham}, series={Lecture Notes in Computer Science}, title={BBE: Basin-Based Evaluation of Multimodal Multi-objective Optimization Problems}, DOI={10.1007/978-3-031-14714-2_14}, booktitle={Parallel Problem Solving from Nature (PPSN XVII)}, publisher={Springer International Publishing}, author={Heins, Jonathan and Rook, Jeroen and Schäpermeier, Lennart and Kerschke, Pascal and Bossek, Jakob and Trautmann, Heike}, editor={Rudolph, Günter and Kononova, Anna V. and Aguirre, Hernán and Kerschke, Pascal and Ochoa, Gabriela and Tusar, Tea}, year={2022}, pages={192–206}, collection={Lecture Notes in Computer Science} }","ama":"Heins J, Rook J, Schäpermeier L, Kerschke P, Bossek J, Trautmann H. BBE: Basin-Based Evaluation of Multimodal Multi-objective Optimization Problems. In: Rudolph G, Kononova AV, Aguirre H, Kerschke P, Ochoa G, Tusar T, eds. Parallel Problem Solving from Nature (PPSN XVII). Lecture Notes in Computer Science. Springer International Publishing; 2022:192–206. doi:10.1007/978-3-031-14714-2_14","mla":"Heins, Jonathan, et al. “BBE: Basin-Based Evaluation of Multimodal Multi-Objective Optimization Problems.” Parallel Problem Solving from Nature (PPSN XVII), edited by Günter Rudolph et al., Springer International Publishing, 2022, pp. 192–206, doi:10.1007/978-3-031-14714-2_14."},"doi":"10.1007/978-3-031-14714-2_14","language":[{"iso":"eng"}],"series_title":"Lecture Notes in Computer Science","date_updated":"2023-12-13T10:47:50Z","author":[{"last_name":"Heins","first_name":"Jonathan","full_name":"Heins, Jonathan"},{"last_name":"Rook","first_name":"Jeroen","full_name":"Rook, Jeroen"},{"last_name":"Schäpermeier","first_name":"Lennart","full_name":"Schäpermeier, Lennart"},{"full_name":"Kerschke, Pascal","first_name":"Pascal","last_name":"Kerschke"},{"orcid":"0000-0002-4121-4668","first_name":"Jakob","last_name":"Bossek","full_name":"Bossek, Jakob","id":"102979"},{"first_name":"Heike","last_name":"Trautmann","full_name":"Trautmann, Heike"}],"publication_identifier":{"isbn":["978-3-031-14714-2"]},"year":"2022","title":"BBE: Basin-Based Evaluation of Multimodal Multi-objective Optimization Problems","department":[{"_id":"819"}],"type":"conference","keyword":["Anytime behavior","Benchmarking","Continuous optimization","Multi-objective optimization","Multimodality","Performance metric"],"date_created":"2023-11-14T15:58:58Z","abstract":[{"text":"In multimodal multi-objective optimization (MMMOO), the focus is not solely on convergence in objective space, but rather also on explicitly ensuring diversity in decision space. We illustrate why commonly used diversity measures are not entirely appropriate for this task and propose a sophisticated basin-based evaluation (BBE) method. Also, BBE variants are developed, capturing the anytime behavior of algorithms. The set of BBE measures is tested by means of an algorithm configuration study. We show that these new measures also transfer properties of the well-established hypervolume (HV) indicator to the domain of MMMOO, thus also accounting for objective space convergence. Moreover, we advance MMMOO research by providing insights into the multimodal performance of the considered algorithms. Specifically, algorithms exploiting local structures are shown to outperform classical evolutionary multi-objective optimizers regarding the BBE variants and respective trade-off with HV.","lang":"eng"}],"extern":"1","publication":"Parallel Problem Solving from Nature (PPSN XVII)"},{"author":[{"full_name":"Rook, Jeroen","last_name":"Rook","first_name":"Jeroen"},{"full_name":"Trautmann, Heike","first_name":"Heike","last_name":"Trautmann"},{"id":"102979","first_name":"Jakob","last_name":"Bossek","orcid":"0000-0002-4121-4668","full_name":"Bossek, Jakob"},{"full_name":"Grimme, Christian","last_name":"Grimme","first_name":"Christian"}],"publication_identifier":{"isbn":["978-1-4503-9268-6"]},"title":"On the Potential of Automated Algorithm Configuration on Multi-Modal Multi-Objective Optimization Problems","year":"2022","date_updated":"2023-12-13T10:50:24Z","language":[{"iso":"eng"}],"series_title":"GECCO’22","doi":"10.1145/3520304.3528998","publication":"Proceedings of the Genetic and Evolutionary Computation Conference Companion","extern":"1","abstract":[{"lang":"eng","text":"Hardness of Multi-Objective (MO) continuous optimization problems results from an interplay of various problem characteristics, e. g. the degree of multi-modality. We present a benchmark study of classical and diversity focused optimizers on multi-modal MO problems based on automated algorithm configuration. We show the large effect of the latter and investigate the trade-off between convergence in objective space and diversity in decision space."}],"date_created":"2023-11-14T15:59:00Z","department":[{"_id":"819"}],"type":"conference","keyword":["configuration","multi-modality","multi-objective optimization"],"status":"public","_id":"48896","publisher":"Association for Computing Machinery","page":"356–359","user_id":"102979","citation":{"chicago":"Rook, Jeroen, Heike Trautmann, Jakob Bossek, and Christian Grimme. “On the Potential of Automated Algorithm Configuration on Multi-Modal Multi-Objective Optimization Problems.” In Proceedings of the Genetic and Evolutionary Computation Conference Companion, 356–359. GECCO’22. New York, NY, USA: Association for Computing Machinery, 2022. https://doi.org/10.1145/3520304.3528998.","short":"J. Rook, H. Trautmann, J. Bossek, C. Grimme, in: Proceedings of the Genetic and Evolutionary Computation Conference Companion, Association for Computing Machinery, New York, NY, USA, 2022, pp. 356–359.","ieee":"J. Rook, H. Trautmann, J. Bossek, and C. Grimme, “On the Potential of Automated Algorithm Configuration on Multi-Modal Multi-Objective Optimization Problems,” in Proceedings of the Genetic and Evolutionary Computation Conference Companion, 2022, pp. 356–359, doi: 10.1145/3520304.3528998.","apa":"Rook, J., Trautmann, H., Bossek, J., & Grimme, C. (2022). On the Potential of Automated Algorithm Configuration on Multi-Modal Multi-Objective Optimization Problems. Proceedings of the Genetic and Evolutionary Computation Conference Companion, 356–359. https://doi.org/10.1145/3520304.3528998","bibtex":"@inproceedings{Rook_Trautmann_Bossek_Grimme_2022, place={New York, NY, USA}, series={GECCO’22}, title={On the Potential of Automated Algorithm Configuration on Multi-Modal Multi-Objective Optimization Problems}, DOI={10.1145/3520304.3528998}, booktitle={Proceedings of the Genetic and Evolutionary Computation Conference Companion}, publisher={Association for Computing Machinery}, author={Rook, Jeroen and Trautmann, Heike and Bossek, Jakob and Grimme, Christian}, year={2022}, pages={356–359}, collection={GECCO’22} }","ama":"Rook J, Trautmann H, Bossek J, Grimme C. On the Potential of Automated Algorithm Configuration on Multi-Modal Multi-Objective Optimization Problems. In: Proceedings of the Genetic and Evolutionary Computation Conference Companion. GECCO’22. Association for Computing Machinery; 2022:356–359. doi:10.1145/3520304.3528998","mla":"Rook, Jeroen, et al. “On the Potential of Automated Algorithm Configuration on Multi-Modal Multi-Objective Optimization Problems.” Proceedings of the Genetic and Evolutionary Computation Conference Companion, Association for Computing Machinery, 2022, pp. 356–359, doi:10.1145/3520304.3528998."},"place":"New York, NY, USA"},{"language":[{"iso":"eng"}],"publication_identifier":{"unknown":["978-952-65069-1-3"]},"author":[{"id":"45137","full_name":"Özcan, Leon","last_name":"Özcan","first_name":"Leon"},{"id":"63192","full_name":"Kirchberg, Lisa Irene","first_name":"Lisa Irene","last_name":"Kirchberg"},{"last_name":"Koldewey","first_name":"Christian","full_name":"Koldewey, Christian"},{"full_name":"Dumitrescu, Roman","last_name":"Dumitrescu","first_name":"Roman"}],"title":"Performance Management Approach for Digital Platforms in B2B Markets","year":"2022","date_updated":"2024-09-30T07:59:27Z","date_created":"2022-11-04T07:31:57Z","file":[{"creator":"loezcan","date_created":"2022-11-04T07:30:29Z","access_level":"closed","file_size":694337,"file_name":"[ÖKK+22] Performance Management Approach for Digital Platforms in B2B Markets.pdf","date_updated":"2022-11-04T07:30:29Z","relation":"main_file","success":1,"content_type":"application/pdf","file_id":"33998"}],"department":[{"_id":"563"}],"type":"conference","keyword":["Digital Platform","Two-Sided Market","Multi-Sided Market","Platform Lifecycle","Platform Monitoring","Performance Management"],"publication":"The Role of Innovation: Past, Present, Future","abstract":[{"lang":"eng","text":"Digital platforms have already led to disruptions in multiple B2C markets and are becoming increasingly dominant in B2B markets. As a result, more and more companies are trying to participate in the platform economy. However, the successful development and operation of a digital platform is associated with significant challenges, which leads to 85% of all platforms failing. A core challenge is the dynamic nature of the platform economy, with varying strategic objectives at different stages in the platform lifecycle. Platform operators must continuously monitor platform progress and adjust their strategy.\r\nUtilizing action research in the real-world platform project AI Marketplace, we developed a lifecycle-oriented performance management approach for digital platforms in B2B markets. It enables platform operators to reflect on their position in the platform lifecycle, derive relevant strategic objectives, and monitor them with suitable key performance indicators. Hence, allowing them to secure the long-term success of their platform business."}],"_id":"33997","editor":[{"first_name":"Iain","last_name":"Bitran","full_name":"Bitran, Iain"},{"full_name":"Bitetti, Leandro","first_name":"Leandro","last_name":"Bitetti"},{"last_name":" Conn","first_name":"Steffen","full_name":" Conn, Steffen"},{"last_name":"Fishburn","first_name":"Jessica","full_name":"Fishburn, Jessica"},{"last_name":"Huizingh","first_name":"Eelko ","full_name":"Huizingh, Eelko "},{"full_name":"Torkkeli, Marko","first_name":"Marko","last_name":"Torkkeli"},{"full_name":"Yang, Jialei","first_name":"Jialei","last_name":"Yang"}],"ddc":["600"],"user_id":"1112","conference":{"location":"Athens","name":"ISPIM Connects Athens","start_date":"2022-11-28","end_date":"2022-11-30"},"status":"public","has_accepted_license":"1","place":"Athens","citation":{"chicago":"Özcan, Leon, Lisa Irene Kirchberg, Christian Koldewey, and Roman Dumitrescu. “Performance Management Approach for Digital Platforms in B2B Markets.” In The Role of Innovation: Past, Present, Future, edited by Iain Bitran, Leandro Bitetti, Steffen Conn, Jessica Fishburn, Eelko Huizingh, Marko Torkkeli, and Jialei Yang. Athens, 2022.","ama":"Özcan L, Kirchberg LI, Koldewey C, Dumitrescu R. Performance Management Approach for Digital Platforms in B2B Markets. In: Bitran I, Bitetti L, Conn S, et al., eds. The Role of Innovation: Past, Present, Future. ; 2022.","short":"L. Özcan, L.I. Kirchberg, C. Koldewey, R. Dumitrescu, in: I. Bitran, L. Bitetti, S. Conn, J. Fishburn, E. Huizingh, M. Torkkeli, J. Yang (Eds.), The Role of Innovation: Past, Present, Future, Athens, 2022.","bibtex":"@inproceedings{Özcan_Kirchberg_Koldewey_Dumitrescu_2022, place={Athens}, title={Performance Management Approach for Digital Platforms in B2B Markets}, booktitle={The Role of Innovation: Past, Present, Future}, author={Özcan, Leon and Kirchberg, Lisa Irene and Koldewey, Christian and Dumitrescu, Roman}, editor={Bitran, Iain and Bitetti, Leandro and Conn, Steffen and Fishburn, Jessica and Huizingh, Eelko and Torkkeli, Marko and Yang, Jialei}, year={2022} }","apa":"Özcan, L., Kirchberg, L. I., Koldewey, C., & Dumitrescu, R. (2022). Performance Management Approach for Digital Platforms in B2B Markets. In I. Bitran, L. Bitetti, S. Conn, J. Fishburn, E. Huizingh, M. Torkkeli, & J. Yang (Eds.), The Role of Innovation: Past, Present, Future.","mla":"Özcan, Leon, et al. “Performance Management Approach for Digital Platforms in B2B Markets.” The Role of Innovation: Past, Present, Future, edited by Iain Bitran et al., 2022.","ieee":"L. Özcan, L. I. Kirchberg, C. Koldewey, and R. Dumitrescu, “Performance Management Approach for Digital Platforms in B2B Markets,” in The Role of Innovation: Past, Present, Future, Athens, 2022."},"file_date_updated":"2022-11-04T07:30:29Z"},{"citation":{"ama":"Schön O, Götte R-S, Timmermann J. Multi-Objective Physics-Guided Recurrent Neural Networks for Identifying Non-Autonomous Dynamical Systems. In: 14th IFAC Workshop on Adaptive and Learning Control Systems (ALCOS 2022). Vol 55. ; 2022:19-24. doi:https://doi.org/10.1016/j.ifacol.2022.07.282","bibtex":"@inproceedings{Schön_Götte_Timmermann_2022, title={Multi-Objective Physics-Guided Recurrent Neural Networks for Identifying Non-Autonomous Dynamical Systems}, volume={55}, DOI={https://doi.org/10.1016/j.ifacol.2022.07.282}, number={12}, booktitle={14th IFAC Workshop on Adaptive and Learning Control Systems (ALCOS 2022)}, author={Schön, Oliver and Götte, Ricarda-Samantha and Timmermann, Julia}, year={2022}, pages={19–24} }","mla":"Schön, Oliver, et al. “Multi-Objective Physics-Guided Recurrent Neural Networks for Identifying Non-Autonomous Dynamical Systems.” 14th IFAC Workshop on Adaptive and Learning Control Systems (ALCOS 2022), vol. 55, no. 12, 2022, pp. 19–24, doi:https://doi.org/10.1016/j.ifacol.2022.07.282.","short":"O. Schön, R.-S. Götte, J. Timmermann, in: 14th IFAC Workshop on Adaptive and Learning Control Systems (ALCOS 2022), 2022, pp. 19–24.","chicago":"Schön, Oliver, Ricarda-Samantha Götte, and Julia Timmermann. “Multi-Objective Physics-Guided Recurrent Neural Networks for Identifying Non-Autonomous Dynamical Systems.” In 14th IFAC Workshop on Adaptive and Learning Control Systems (ALCOS 2022), 55:19–24, 2022. https://doi.org/10.1016/j.ifacol.2022.07.282.","apa":"Schön, O., Götte, R.-S., & Timmermann, J. (2022). Multi-Objective Physics-Guided Recurrent Neural Networks for Identifying Non-Autonomous Dynamical Systems. 14th IFAC Workshop on Adaptive and Learning Control Systems (ALCOS 2022), 55(12), 19–24. https://doi.org/10.1016/j.ifacol.2022.07.282","ieee":"O. Schön, R.-S. Götte, and J. Timmermann, “Multi-Objective Physics-Guided Recurrent Neural Networks for Identifying Non-Autonomous Dynamical Systems,” in 14th IFAC Workshop on Adaptive and Learning Control Systems (ALCOS 2022), Casablanca, Morocco, 2022, vol. 55, no. 12, pp. 19–24, doi: https://doi.org/10.1016/j.ifacol.2022.07.282."},"quality_controlled":"1","_id":"31066","page":"19-24","volume":55,"user_id":"43992","conference":{"end_date":"2022-07-01","start_date":"2022-06-29","name":"14th IFAC Workshop on Adaptive and Learning Control Systems (ALCOS 2022)","location":"Casablanca, Morocco"},"status":"public","date_created":"2022-05-05T06:22:55Z","department":[{"_id":"153"},{"_id":"880"}],"keyword":["neural networks","physics-guided","data-driven","multi-objective optimization","system identification","machine learning","dynamical systems"],"type":"conference","publication":"14th IFAC Workshop on Adaptive and Learning Control Systems (ALCOS 2022)","issue":"12","abstract":[{"lang":"eng","text":"While trade-offs between modeling effort and model accuracy remain a major concern with system identification, resorting to data-driven methods often leads to a complete disregard for physical plausibility. To address this issue, we propose a physics-guided hybrid approach for modeling non-autonomous systems under control. Starting from a traditional physics-based model, this is extended by a recurrent neural network and trained using a sophisticated multi-objective strategy yielding physically plausible models. While purely data-driven methods fail to produce satisfying results, experiments conducted on real data reveal substantial accuracy improvements by our approach compared to a physics-based model. "}],"language":[{"iso":"eng"}],"doi":"https://doi.org/10.1016/j.ifacol.2022.07.282","author":[{"first_name":"Oliver","last_name":"Schön","full_name":"Schön, Oliver"},{"first_name":"Ricarda-Samantha","last_name":"Götte","full_name":"Götte, Ricarda-Samantha","id":"43992"},{"id":"15402","full_name":"Timmermann, Julia","last_name":"Timmermann","first_name":"Julia"}],"title":"Multi-Objective Physics-Guided Recurrent Neural Networks for Identifying Non-Autonomous Dynamical Systems","year":"2022","intvolume":" 55","date_updated":"2024-11-13T08:43:16Z"},{"_id":"21004","language":[{"iso":"eng"}],"page":"1-1","doi":"10.1109/tpami.2021.3051276","user_id":"5786","author":[{"full_name":"Wever, Marcel Dominik","last_name":"Wever","first_name":"Marcel Dominik","orcid":" https://orcid.org/0000-0001-9782-6818","id":"33176"},{"full_name":"Tornede, Alexander","first_name":"Alexander","last_name":"Tornede","id":"38209"},{"last_name":"Mohr","first_name":"Felix","full_name":"Mohr, Felix"},{"first_name":"Eyke","last_name":"Hüllermeier","full_name":"Hüllermeier, Eyke","id":"48129"}],"publication_identifier":{"issn":["0162-8828","2160-9292","1939-3539"]},"title":"AutoML for Multi-Label Classification: Overview and Empirical Evaluation","status":"public","year":"2021","date_updated":"2022-01-06T06:54:42Z","publication_status":"published","date_created":"2021-01-16T14:48:13Z","department":[{"_id":"34"},{"_id":"355"},{"_id":"26"}],"keyword":["Automated Machine Learning","Multi Label Classification","Hierarchical Planning","Bayesian Optimization"],"type":"journal_article","citation":{"ama":"Wever MD, Tornede A, Mohr F, Hüllermeier E. AutoML for Multi-Label Classification: Overview and Empirical Evaluation. IEEE Transactions on Pattern Analysis and Machine Intelligence. Published online 2021:1-1. doi:10.1109/tpami.2021.3051276","short":"M.D. Wever, A. Tornede, F. Mohr, E. Hüllermeier, IEEE Transactions on Pattern Analysis and Machine Intelligence (2021) 1–1.","chicago":"Wever, Marcel Dominik, Alexander Tornede, Felix Mohr, and Eyke Hüllermeier. “AutoML for Multi-Label Classification: Overview and Empirical Evaluation.” IEEE Transactions on Pattern Analysis and Machine Intelligence, 2021, 1–1. https://doi.org/10.1109/tpami.2021.3051276.","bibtex":"@article{Wever_Tornede_Mohr_Hüllermeier_2021, title={AutoML for Multi-Label Classification: Overview and Empirical Evaluation}, DOI={10.1109/tpami.2021.3051276}, journal={IEEE Transactions on Pattern Analysis and Machine Intelligence}, author={Wever, Marcel Dominik and Tornede, Alexander and Mohr, Felix and Hüllermeier, Eyke}, year={2021}, pages={1–1} }","apa":"Wever, M. D., Tornede, A., Mohr, F., & Hüllermeier, E. (2021). AutoML for Multi-Label Classification: Overview and Empirical Evaluation. IEEE Transactions on Pattern Analysis and Machine Intelligence, 1–1. https://doi.org/10.1109/tpami.2021.3051276","mla":"Wever, Marcel Dominik, et al. “AutoML for Multi-Label Classification: Overview and Empirical Evaluation.” IEEE Transactions on Pattern Analysis and Machine Intelligence, 2021, pp. 1–1, doi:10.1109/tpami.2021.3051276.","ieee":"M. D. Wever, A. Tornede, F. Mohr, and E. Hüllermeier, “AutoML for Multi-Label Classification: Overview and Empirical Evaluation,” IEEE Transactions on Pattern Analysis and Machine Intelligence, pp. 1–1, 2021, doi: 10.1109/tpami.2021.3051276."},"publication":"IEEE Transactions on Pattern Analysis and Machine Intelligence","project":[{"name":"SFB 901","_id":"1"},{"name":"SFB 901 - Project Area B","_id":"3"},{"_id":"10","name":"SFB 901 - Subproject B2"},{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"abstract":[{"text":"Automated machine learning (AutoML) supports the algorithmic construction and data-specific customization of machine learning pipelines, including the selection, combination, and parametrization of machine learning algorithms as main constituents. Generally speaking, AutoML approaches comprise two major components: a search space model and an optimizer for traversing the space. Recent approaches have shown impressive results in the realm of supervised learning, most notably (single-label) classification (SLC). Moreover, first attempts at extending these approaches towards multi-label classification (MLC) have been made. While the space of candidate pipelines is already huge in SLC, the complexity of the search space is raised to an even higher power in MLC. One may wonder, therefore, whether and to what extent optimizers established for SLC can scale to this increased complexity, and how they compare to each other. This paper makes the following contributions: First, we survey existing approaches to AutoML for MLC. Second, we augment these approaches with optimizers not previously tried for MLC. Third, we propose a benchmarking framework that supports a fair and systematic comparison. Fourth, we conduct an extensive experimental study, evaluating the methods on a suite of MLC problems. We find a grammar-based best-first search to compare favorably to other optimizers.","lang":"eng"}]},{"file":[{"file_id":"21809","content_type":"application/pdf","relation":"main_file","date_updated":"2021-04-27T08:01:26Z","file_name":"ris-accepted-version.pdf","file_size":4172270,"access_level":"open_access","description":"Author version of the accepted paper","date_created":"2021-04-27T08:01:26Z","creator":"stschn"}],"date_created":"2021-04-27T08:04:16Z","keyword":["network management","service management","coordination","reinforcement learning","self-learning","self-adaptation","multi-objective"],"type":"journal_article","department":[{"_id":"75"}],"publication":"Transactions on Network and Service Management","abstract":[{"lang":"eng","text":"Modern services consist of interconnected components,e.g., microservices in a service mesh or machine learning functions in a pipeline. These services can scale and run across multiple network nodes on demand. To process incoming traffic, service components have to be instantiated and traffic assigned to these instances, taking capacities, changing demands, and Quality of Service (QoS) requirements into account. This challenge is usually solved with custom approaches designed by experts. While this typically works well for the considered scenario, the models often rely on unrealistic assumptions or on knowledge that is not available in practice (e.g., a priori knowledge).\r\n\r\nWe propose DeepCoord, a novel deep reinforcement learning approach that learns how to best coordinate services and is geared towards realistic assumptions. It interacts with the network and relies on available, possibly delayed monitoring information. Rather than defining a complex model or an algorithm on how to achieve an objective, our model-free approach adapts to various objectives and traffic patterns. An agent is trained offline without expert knowledge and then applied online with minimal overhead. Compared to a state-of-the-art heuristic, DeepCoord significantly improves flow throughput (up to 76%) and overall network utility (more than 2x) on realworld network topologies and traffic traces. It also supports optimizing multiple, possibly competing objectives, learns to respect QoS requirements, generalizes to scenarios with unseen, stochastic traffic, and scales to large real-world networks. For reproducibility and reuse, our code is publicly available."}],"language":[{"iso":"eng"}],"doi":"10.1109/TNSM.2021.3076503","year":"2021","title":"Self-Learning Multi-Objective Service Coordination Using Deep Reinforcement Learning","author":[{"id":"35343","full_name":"Schneider, Stefan Balthasar","first_name":"Stefan Balthasar","last_name":"Schneider","orcid":"0000-0001-8210-4011"},{"full_name":"Khalili, Ramin","first_name":"Ramin","last_name":"Khalili"},{"last_name":"Manzoor","first_name":"Adnan","full_name":"Manzoor, Adnan"},{"full_name":"Qarawlus, Haydar","last_name":"Qarawlus","first_name":"Haydar"},{"first_name":"Rafael","last_name":"Schellenberg","full_name":"Schellenberg, Rafael"},{"id":"126","first_name":"Holger","last_name":"Karl","full_name":"Karl, Holger"},{"last_name":"Hecker","first_name":"Artur","full_name":"Hecker, Artur"}],"date_updated":"2022-01-06T06:55:15Z","article_type":"original","oa":"1","file_date_updated":"2021-04-27T08:01:26Z","citation":{"mla":"Schneider, Stefan Balthasar, et al. “Self-Learning Multi-Objective Service Coordination Using Deep Reinforcement Learning.” Transactions on Network and Service Management, IEEE, 2021, doi:10.1109/TNSM.2021.3076503.","bibtex":"@article{Schneider_Khalili_Manzoor_Qarawlus_Schellenberg_Karl_Hecker_2021, title={Self-Learning Multi-Objective Service Coordination Using Deep Reinforcement Learning}, DOI={10.1109/TNSM.2021.3076503}, journal={Transactions on Network and Service Management}, publisher={IEEE}, author={Schneider, Stefan Balthasar and Khalili, Ramin and Manzoor, Adnan and Qarawlus, Haydar and Schellenberg, Rafael and Karl, Holger and Hecker, Artur}, year={2021} }","ama":"Schneider SB, Khalili R, Manzoor A, et al. Self-Learning Multi-Objective Service Coordination Using Deep Reinforcement Learning. Transactions on Network and Service Management. 2021. doi:10.1109/TNSM.2021.3076503","ieee":"S. B. Schneider et al., “Self-Learning Multi-Objective Service Coordination Using Deep Reinforcement Learning,” Transactions on Network and Service Management, 2021.","apa":"Schneider, S. B., Khalili, R., Manzoor, A., Qarawlus, H., Schellenberg, R., Karl, H., & Hecker, A. (2021). Self-Learning Multi-Objective Service Coordination Using Deep Reinforcement Learning. Transactions on Network and Service Management. https://doi.org/10.1109/TNSM.2021.3076503","chicago":"Schneider, Stefan Balthasar, Ramin Khalili, Adnan Manzoor, Haydar Qarawlus, Rafael Schellenberg, Holger Karl, and Artur Hecker. “Self-Learning Multi-Objective Service Coordination Using Deep Reinforcement Learning.” Transactions on Network and Service Management, 2021. https://doi.org/10.1109/TNSM.2021.3076503.","short":"S.B. Schneider, R. Khalili, A. Manzoor, H. Qarawlus, R. Schellenberg, H. Karl, A. Hecker, Transactions on Network and Service Management (2021)."},"project":[{"_id":"1","name":"SFB 901"},{"_id":"4","name":"SFB 901 - Project Area C"},{"_id":"16","name":"SFB 901 - Subproject C4"}],"_id":"21808","publisher":"IEEE","ddc":["000"],"user_id":"35343","status":"public","has_accepted_license":"1"},{"file":[{"file_id":"33855","content_type":"application/pdf","file_name":"preprint.pdf","file_size":2521656,"access_level":"open_access","relation":"main_file","date_updated":"2022-10-20T16:41:10Z","date_created":"2022-10-20T16:41:10Z","creator":"stschn"}],"date_created":"2022-10-20T16:44:19Z","keyword":["mobility management","coordinated multipoint","CoMP","cell selection","resource management","reinforcement learning","multi agent","MARL","self-learning","self-adaptation","QoE"],"type":"working_paper","department":[{"_id":"75"}],"oa":"1","file_date_updated":"2022-10-20T16:41:10Z","citation":{"bibtex":"@book{Schneider_Karl_Khalili_Hecker_2021, title={DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning}, author={Schneider, Stefan Balthasar and Karl, Holger and Khalili, Ramin and Hecker, Artur}, year={2021} }","ama":"Schneider SB, Karl H, Khalili R, Hecker A. DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning.; 2021.","mla":"Schneider, Stefan Balthasar, et al. DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning. 2021.","short":"S.B. Schneider, H. Karl, R. Khalili, A. Hecker, DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning, 2021.","chicago":"Schneider, Stefan Balthasar, Holger Karl, Ramin Khalili, and Artur Hecker. DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning, 2021.","ieee":"S. B. Schneider, H. Karl, R. Khalili, and A. Hecker, DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning. 2021.","apa":"Schneider, S. B., Karl, H., Khalili, R., & Hecker, A. (2021). DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning."},"abstract":[{"lang":"eng","text":"Macrodiversity is a key technique to increase the capacity of mobile networks. It can be realized using coordinated multipoint (CoMP), simultaneously connecting users to multiple overlapping cells. Selecting which users to serve by how many and which cells is NP-hard but needs to happen continuously in real time as users move and channel state changes. Existing approaches often require strict assumptions about or perfect knowledge of the underlying radio system, its resource allocation scheme, or user movements, none of which is readily available in practice.\r\n\r\nInstead, we propose three novel self-learning and self-adapting approaches using model-free deep reinforcement learning (DRL): DeepCoMP, DD-CoMP, and D3-CoMP. DeepCoMP leverages central observations and control of all users to select cells almost optimally. DD-CoMP and D3-CoMP use multi-agent DRL, which allows distributed, robust, and highly scalable coordination. All three approaches learn from experience and self-adapt to varying scenarios, reaching 2x higher Quality of Experience than other approaches. They have very few built-in assumptions and do not need prior system knowledge, making them more robust to change and better applicable in practice than existing approaches."}],"project":[{"name":"SFB 901 - C: SFB 901 - Project Area C","_id":"4"},{"name":"SFB 901 - C4: SFB 901 - Subproject C4","_id":"16"},{"_id":"1","name":"SFB 901: SFB 901"}],"_id":"33854","language":[{"iso":"eng"}],"user_id":"477","ddc":["004"],"year":"2021","status":"public","title":"DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning","author":[{"last_name":"Schneider","first_name":"Stefan Balthasar","orcid":"0000-0001-8210-4011","full_name":"Schneider, Stefan Balthasar","id":"35343"},{"id":"126","last_name":"Karl","first_name":"Holger","full_name":"Karl, Holger"},{"last_name":"Khalili","first_name":"Ramin","full_name":"Khalili, Ramin"},{"full_name":"Hecker, Artur","last_name":"Hecker","first_name":"Artur"}],"date_updated":"2022-11-18T09:59:27Z","has_accepted_license":"1"}]