--- _id: '59483' abstract: - lang: eng text: Abstract. The assessment of mechanically joined connections, such as clinched connections, is usually conducted destructively. Applicable non-destructive testing methods like computed tomography are time-consuming and costly, or, like electrical resistance measurement, provide only a limited amount of information. A fast, non-destructive evaluation of the joints condition shall be made possible by using transient dynamic analysis (TDA). It is based on the introduction of sound waves and the evaluation of the response behavior after passing through the structure. This study focuses the application of TDA to clinched shear connections to evaluate the performance of the tactile measuring setup. Twenty-one series were investigated, covering variations in joining task, manufacturing and defect. The evaluation was carried out using machine learning to determine for which series characteristic signals may be detected. It was shown that a classification of the investigated specimens is possible, whereby the classification accuracy depends on the examined variation. Furthermore, the accuracy was evaluated as a function of frequency and results were concluded to identify the limits of the used measuring setup. author: - first_name: Gregor full_name: Reschke, Gregor last_name: Reschke - first_name: Alexander full_name: Brosius, Alexander last_name: Brosius citation: ama: 'Reschke G, Brosius A. Transient dynamic analysis: Performance evaluation of tactile measurement. In: Materials Research Proceedings. Vol 52. Materials Research Forum LLC; 2025:293-300. doi:10.21741/9781644903551-36' apa: 'Reschke, G., & Brosius, A. (2025). Transient dynamic analysis: Performance evaluation of tactile measurement. Materials Research Proceedings, 52, 293–300. https://doi.org/10.21741/9781644903551-36' bibtex: '@inproceedings{Reschke_Brosius_2025, title={Transient dynamic analysis: Performance evaluation of tactile measurement}, volume={52}, DOI={10.21741/9781644903551-36}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Reschke, Gregor and Brosius, Alexander}, year={2025}, pages={293–300} }' chicago: 'Reschke, Gregor, and Alexander Brosius. “Transient Dynamic Analysis: Performance Evaluation of Tactile Measurement.” In Materials Research Proceedings, 52:293–300. Materials Research Forum LLC, 2025. https://doi.org/10.21741/9781644903551-36.' ieee: 'G. Reschke and A. Brosius, “Transient dynamic analysis: Performance evaluation of tactile measurement,” in Materials Research Proceedings, Paderborn, 2025, vol. 52, pp. 293–300, doi: 10.21741/9781644903551-36.' mla: 'Reschke, Gregor, and Alexander Brosius. “Transient Dynamic Analysis: Performance Evaluation of Tactile Measurement.” Materials Research Proceedings, vol. 52, Materials Research Forum LLC, 2025, pp. 293–300, doi:10.21741/9781644903551-36.' short: 'G. Reschke, A. Brosius, in: Materials Research Proceedings, Materials Research Forum LLC, 2025, pp. 293–300.' conference: end_date: 2025-04-03 location: Paderborn name: 21st SheMet Conference start_date: 2025-04-01 date_created: 2025-04-10T11:27:20Z date_updated: 2025-04-10T11:33:28Z department: - _id: '43' - _id: '157' doi: 10.21741/9781644903551-36 intvolume: ' 52' keyword: - Joining - Machine Learning - Transient Dynamic Analysis language: - iso: eng page: 293-300 project: - _id: '130' grant_number: '418701707' name: 'TRR 285: TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten' - _id: '133' name: 'TRR 285 - C: TRR 285 - Project Area C' - _id: '148' name: 'TRR 285 – C04: TRR 285 - Subproject C04' publication: Materials Research Proceedings publication_identifier: issn: - 2474-395X publication_status: published publisher: Materials Research Forum LLC quality_controlled: '1' status: public title: 'Transient dynamic analysis: Performance evaluation of tactile measurement' type: conference user_id: '98812' volume: 52 year: '2025' ... --- _id: '62080' abstract: - lang: eng text: The failure behavior of fiber reinforced polymers (FRP) is strongly influenced by their microstructure, i.e. fiber arrangement or local fiber volume content. However, this information cannot be directly used for structural analyses, since it requires a discretization on micrometer level. Therefore, current failure theories do not directly account for such effects, but describe the behavior averaged over an entire specimen. This foundation in experimentally accessible loading conditions leads to purely theory based extension to more complex stress states without direct validation possibilities. This work aims at leveraging micro-scale simulations to obtain failure information under arbitrary loading conditions. The results are propagated to the meso-scale, enabling efficient structural analyses, by means of machine learning (ML). It is shown that the ML model is capable of correctly assessing previously unseen stress states and therefore poses an efficient tool of exploiting information from the micro-scale in larger simulations. author: - first_name: Johannes full_name: Gerritzen, Johannes id: '105344' last_name: Gerritzen orcid: 0000-0002-0169-8602 - first_name: Andreas full_name: Hornig, Andreas last_name: Hornig - first_name: Maik full_name: Gude, Maik last_name: Gude citation: ama: 'Gerritzen J, Hornig A, Gude M. Efficient failure information propagation under complex stress states in fiber reinforced polymers: From micro- to meso-scale using machine learning. In: Meschut G, Bobbert M, Duflou J, et al., eds. Sheet Metal 2025. Materials Research Proceedings. Materials Research Forum LLC, Materials Research Foundations; 2025:260–267. doi:10.21741/9781644903551-32' apa: 'Gerritzen, J., Hornig, A., & Gude, M. (2025). Efficient failure information propagation under complex stress states in fiber reinforced polymers: From micro- to meso-scale using machine learning. In G. Meschut, M. Bobbert, J. Duflou, L. Fratini, H. Hagenah, P. Martins, M. Merklein, & F. Micari (Eds.), Sheet Metal 2025 (pp. 260–267). Materials Research Forum LLC, Materials Research Foundations. https://doi.org/10.21741/9781644903551-32' bibtex: '@inproceedings{Gerritzen_Hornig_Gude_2025, series={Materials Research Proceedings}, title={Efficient failure information propagation under complex stress states in fiber reinforced polymers: From micro- to meso-scale using machine learning}, DOI={10.21741/9781644903551-32}, booktitle={Sheet Metal 2025}, publisher={Materials Research Forum LLC, Materials Research Foundations}, author={Gerritzen, Johannes and Hornig, Andreas and Gude, Maik}, editor={Meschut, G. and Bobbert, M. and Duflou, J. and Fratini, L. and Hagenah, H. and Martins, P. and Merklein, M. and Micari, F.}, year={2025}, pages={260–267}, collection={Materials Research Proceedings} }' chicago: 'Gerritzen, Johannes, Andreas Hornig, and Maik Gude. “Efficient Failure Information Propagation under Complex Stress States in Fiber Reinforced Polymers: From Micro- to Meso-Scale Using Machine Learning.” In Sheet Metal 2025, edited by G. Meschut, M. Bobbert, J. Duflou, L. Fratini, H. Hagenah, P. Martins, M. Merklein, and F. Micari, 260–267. Materials Research Proceedings. Materials Research Forum LLC, Materials Research Foundations, 2025. https://doi.org/10.21741/9781644903551-32.' ieee: 'J. Gerritzen, A. Hornig, and M. Gude, “Efficient failure information propagation under complex stress states in fiber reinforced polymers: From micro- to meso-scale using machine learning,” in Sheet Metal 2025, 2025, pp. 260–267, doi: 10.21741/9781644903551-32.' mla: 'Gerritzen, Johannes, et al. “Efficient Failure Information Propagation under Complex Stress States in Fiber Reinforced Polymers: From Micro- to Meso-Scale Using Machine Learning.” Sheet Metal 2025, edited by G. Meschut et al., Materials Research Forum LLC, Materials Research Foundations, 2025, pp. 260–267, doi:10.21741/9781644903551-32.' short: 'J. Gerritzen, A. Hornig, M. Gude, in: G. Meschut, M. Bobbert, J. Duflou, L. Fratini, H. Hagenah, P. Martins, M. Merklein, F. Micari (Eds.), Sheet Metal 2025, Materials Research Forum LLC, Materials Research Foundations, 2025, pp. 260–267.' date_created: 2025-11-04T12:48:37Z date_updated: 2026-02-27T06:43:37Z doi: 10.21741/9781644903551-32 editor: - first_name: G. full_name: Meschut, G. last_name: Meschut - first_name: M. full_name: Bobbert, M. last_name: Bobbert - first_name: J. full_name: Duflou, J. last_name: Duflou - first_name: L. full_name: Fratini, L. last_name: Fratini - first_name: H. full_name: Hagenah, H. last_name: Hagenah - first_name: P. full_name: Martins, P. last_name: Martins - first_name: M. full_name: Merklein, M. last_name: Merklein - first_name: F. full_name: Micari, F. last_name: Micari keyword: - Failure - Fiber Reinforced Plastic - Machine Learning language: - iso: eng page: 260–267 project: - _id: '130' name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten' - _id: '137' name: TRR 285 - Subproject A03 - _id: '131' name: TRR 285 - Project Area A publication: Sheet Metal 2025 publication_identifier: isbn: - 978-1-64490-354-4 publisher: Materials Research Forum LLC, Materials Research Foundations series_title: Materials Research Proceedings status: public title: 'Efficient failure information propagation under complex stress states in fiber reinforced polymers: From micro- to meso-scale using machine learning' type: conference user_id: '105344' year: '2025' ... --- _id: '58885' abstract: - lang: eng text: 'There have been several attempts to conceptualize and operationalize pedagogical content knowledge (PCK) in the context of teachers'' professional competencies. A recent and popular model is the Refined Consensus Model (RCM), which proposes a framework of dispositional competencies (personal PCK—pPCK) that influence more action-related competencies (enacted PCK—ePCK) and vice versa. However, descriptions of the internal structure of pPCK and possible knowledge domains that might develop independently are still limited, being either primarily theoretically motivated or strictly hierarchical and therefore of limited use, for example, for formative feedback and further development of the RCM. Meanwhile, a non-hierarchical differentiation for the ePCK regarding the plan-teach-reflect cycle has emerged. In this study, we present an exploratory computational approach to investigate pre-service teachers'' pPCK for a similar non-hierarchical structure using a large dataset of responses to a pPCK questionnaire (N=846). We drew on theoretical foundations and previous empirical findings to achieve interpretability by integrating this external knowledge into our analyses using the Computational Grounded Theory (CGT) framework. The results of a cluster analysis of the pPCK scores indicate the emergence of prototypical groups, which we refer to as competency profiles: (1) a group with low performance, (2) a group with relatively advanced competency in using pPCK to create instructional elements, (3) a group with relatively advanced competency in using pPCK to assess and analyze described instructional elements, and (4) a group with high performance. These groups show tendencies for certain language usage, which we analyze using a structural topic model in a CGT-inspired pattern refinement step. We verify these patterns by demonstrating the ability of a machine learning model to predict the competency profile assignments. Finally, we discuss some implications of the results for the further development of the RCM and their potential usability for an automated formative assessment.' article_type: original author: - first_name: Jannis full_name: Zeller, Jannis id: '99022' last_name: Zeller orcid: 0000-0002-1834-5520 - first_name: Josef full_name: Riese, Josef id: '429' last_name: Riese orcid: 0000-0003-2927-2619 citation: ama: 'Zeller J, Riese J. Competency Profiles of PCK Using Unsupervised Learning: What Implications for the Structures of pPCK Emerge From Non-Hierarchical Analyses? Journal of Research in Science Teaching. Published online 2025. doi:10.1002/tea.70001' apa: 'Zeller, J., & Riese, J. (2025). Competency Profiles of PCK Using Unsupervised Learning: What Implications for the Structures of pPCK Emerge From Non-Hierarchical Analyses? Journal of Research in Science Teaching. https://doi.org/10.1002/tea.70001' bibtex: '@article{Zeller_Riese_2025, title={Competency Profiles of PCK Using Unsupervised Learning: What Implications for the Structures of pPCK Emerge From Non-Hierarchical Analyses?}, DOI={10.1002/tea.70001}, journal={Journal of Research in Science Teaching}, author={Zeller, Jannis and Riese, Josef}, year={2025} }' chicago: 'Zeller, Jannis, and Josef Riese. “Competency Profiles of PCK Using Unsupervised Learning: What Implications for the Structures of PPCK Emerge From Non-Hierarchical Analyses?” Journal of Research in Science Teaching, 2025. https://doi.org/10.1002/tea.70001.' ieee: 'J. Zeller and J. Riese, “Competency Profiles of PCK Using Unsupervised Learning: What Implications for the Structures of pPCK Emerge From Non-Hierarchical Analyses?,” Journal of Research in Science Teaching, 2025, doi: 10.1002/tea.70001.' mla: 'Zeller, Jannis, and Josef Riese. “Competency Profiles of PCK Using Unsupervised Learning: What Implications for the Structures of PPCK Emerge From Non-Hierarchical Analyses?” Journal of Research in Science Teaching, 2025, doi:10.1002/tea.70001.' short: J. Zeller, J. Riese, Journal of Research in Science Teaching (2025). date_created: 2025-03-04T08:08:37Z date_updated: 2025-03-04T08:08:42Z department: - _id: '299' doi: 10.1002/tea.70001 keyword: - computational grounded theory - language analysis - machine learning - pedagogical content knowledge - unsupervised learning language: - iso: eng main_file_link: - open_access: '1' url: https://onlinelibrary.wiley.com/doi/epdf/10.1002/tea.70001 oa: '1' publication: Journal of Research in Science Teaching publication_identifier: eissn: - 1098-2736 issn: - 0022-4308 publication_status: published status: public title: 'Competency Profiles of PCK Using Unsupervised Learning: What Implications for the Structures of pPCK Emerge From Non-Hierarchical Analyses?' type: journal_article user_id: '99022' year: '2025' ... --- _id: '60680' abstract: - lang: eng text: "Classical machine learning techniques often struggle with overfitting and unreliable predictions when exposed to novel conditions. Introducing causality into the modelling process offers a promising way to mitigate these challenges by enhancing predictive robustness. However, constructing an initial causal graph manually using domain knowledge is time-consuming, particularly in complex time series with numerous variables. To address this, causal discovery algorithms can provide a preliminary causal structure that domain experts can refine. This study investigates causal feature selection with domain knowledge using a data center system as an example. We use simulated time-series data to compare \r\ndifferent causal feature selection with traditional machine-learning feature selection methods. Our results show that predictions based on causal features are more robust compared to those derived from traditional methods. These findings underscore the potential of combining causal discovery algorithms with human expertise to improve machine learning applications." author: - first_name: David Ricardo full_name: Zapata Gonzalez, David Ricardo id: '105506' last_name: Zapata Gonzalez - first_name: Marcel full_name: Meyer, Marcel id: '105120' last_name: Meyer - first_name: Oliver full_name: Müller, Oliver id: '72849' last_name: Müller citation: ama: 'Zapata Gonzalez DR, Meyer M, Müller O. Bridging the gap between data-driven and theory-driven modelling – leveraging causal machine learning for integrative modelling of dynamical systems. In: ; 2025.' apa: Zapata Gonzalez, D. R., Meyer, M., & Müller, O. (2025). Bridging the gap between data-driven and theory-driven modelling – leveraging causal machine learning for integrative modelling of dynamical systems. European Conference on Information Systems, Amman, Jordan. bibtex: '@inproceedings{Zapata Gonzalez_Meyer_Müller_2025, title={Bridging the gap between data-driven and theory-driven modelling – leveraging causal machine learning for integrative modelling of dynamical systems}, author={Zapata Gonzalez, David Ricardo and Meyer, Marcel and Müller, Oliver}, year={2025} }' chicago: Zapata Gonzalez, David Ricardo, Marcel Meyer, and Oliver Müller. “Bridging the Gap between Data-Driven and Theory-Driven Modelling – Leveraging Causal Machine Learning for Integrative Modelling of Dynamical Systems,” 2025. ieee: D. R. Zapata Gonzalez, M. Meyer, and O. Müller, “Bridging the gap between data-driven and theory-driven modelling – leveraging causal machine learning for integrative modelling of dynamical systems,” presented at the European Conference on Information Systems, Amman, Jordan, 2025. mla: Zapata Gonzalez, David Ricardo, et al. Bridging the Gap between Data-Driven and Theory-Driven Modelling – Leveraging Causal Machine Learning for Integrative Modelling of Dynamical Systems. 2025. short: 'D.R. Zapata Gonzalez, M. Meyer, O. Müller, in: 2025.' conference: end_date: 18.06.2025 location: Amman, Jordan name: European Conference on Information Systems start_date: 16.06.2025 date_created: 2025-07-21T07:52:03Z date_updated: 2025-07-22T06:30:37Z department: - _id: '196' keyword: - Causal Machine Learning - Causality in Time Series - Causal Discovery - Human-Machine Collaboration language: - iso: eng main_file_link: - url: https://aisel.aisnet.org/ecis2025/bus_analytics/bus_analytics/2/ status: public title: Bridging the gap between data-driven and theory-driven modelling – leveraging causal machine learning for integrative modelling of dynamical systems type: conference user_id: '72849' year: '2025' ... --- _id: '61327' abstract: - lang: eng text: "Robot learning from humans has been proposed and researched for several decades as a means to enable robots to learn new skills or\r\nadapt existing ones to new situations. Recent advances in artificial intelligence, including learning approaches like reinforcement\r\nlearning and architectures like transformers and foundation models, combined with access to massive datasets, has created attractive\r\nopportunities to apply those data-hungry techniques to this problem. We argue that the focus on massive amounts of pre-collected\r\ndata, and the resulting learning paradigm, where humans demonstrate and robots learn in isolation, is overshadowing a specialized\r\narea of work we term Human-Interactive-Robot-Learning (HIRL). This paradigm, wherein robots and humans interact during the\r\nlearning process, is at the intersection of multiple fields (artificial intelligence, robotics, human-computer interaction, design and others)\r\nand holds unique promise. Using HIRL, robots can achieve greater sample efficiency (as humans can provide task knowledge through\r\ninteraction), align with human preferences (as humans can guide the robot behavior towards their expectations), and explore more\r\nmeaningfully and safely (as humans can utilize domain knowledge to guide learning and prevent catastrophic failures). This can result\r\nin robotic systems that can more quickly and easily adapt to new tasks in human environments. The objective of this paper is to\r\nprovide a broad and consistent overview of HIRL research and to guide researchers toward understanding the scope of HIRL, and\r\ncurrent open or underexplored challenges related to four themes — namely, human, robot learning, interaction, and broader context.\r\nThe paper includes concrete use cases to illustrate the interaction between these challenges and inspire further research according to\r\nbroad recommendations and a call for action for the growing HIRL community" article_type: original author: - first_name: 'Kim ' full_name: 'Baraka, Kim ' last_name: Baraka - first_name: Ifrah full_name: Idrees, Ifrah last_name: Idrees - first_name: Taylor Kessler full_name: Faulkner, Taylor Kessler last_name: Faulkner - first_name: Erdem full_name: Biyik, Erdem last_name: Biyik - first_name: Serena full_name: Booth, Serena last_name: Booth - first_name: Mohamed full_name: Chetouani, Mohamed last_name: Chetouani - first_name: Daniel H. full_name: Grollman, Daniel H. last_name: Grollman - first_name: Akanksha full_name: Saran, Akanksha last_name: Saran - first_name: Emmanuel full_name: Senft, Emmanuel last_name: Senft - first_name: Silvia full_name: Tulli, Silvia last_name: Tulli - first_name: Anna-Lisa full_name: Vollmer, Anna-Lisa last_name: Vollmer - first_name: Antonio full_name: Andriella, Antonio last_name: Andriella - first_name: Helen full_name: Beierling, Helen last_name: Beierling - first_name: Tiffany full_name: Horter, Tiffany last_name: Horter - first_name: Jens full_name: Kober, Jens last_name: Kober - first_name: Isaac full_name: Sheidlower, Isaac last_name: Sheidlower - first_name: Matthew E. full_name: Taylor, Matthew E. last_name: Taylor - first_name: Sanne full_name: van Waveren, Sanne last_name: van Waveren - first_name: Xuesu full_name: Xiao, Xuesu last_name: Xiao citation: ama: 'Baraka K, Idrees I, Faulkner TK, et al. Human-Interactive Robot Learning: Definition, Challenges, and Recommendations. Transactions on Human-Robot Interaction.' apa: 'Baraka, K., Idrees, I., Faulkner, T. K., Biyik, E., Booth, S., Chetouani, M., Grollman, D. H., Saran, A., Senft, E., Tulli, S., Vollmer, A.-L., Andriella, A., Beierling, H., Horter, T., Kober, J., Sheidlower, I., Taylor, M. E., van Waveren, S., & Xiao, X. (n.d.). Human-Interactive Robot Learning: Definition, Challenges, and Recommendations. Transactions on Human-Robot Interaction.' bibtex: '@article{Baraka_Idrees_Faulkner_Biyik_Booth_Chetouani_Grollman_Saran_Senft_Tulli_et al., title={Human-Interactive Robot Learning: Definition, Challenges, and Recommendations}, journal={Transactions on Human-Robot Interaction}, author={Baraka, Kim and Idrees, Ifrah and Faulkner, Taylor Kessler and Biyik, Erdem and Booth, Serena and Chetouani, Mohamed and Grollman, Daniel H. and Saran, Akanksha and Senft, Emmanuel and Tulli, Silvia and et al.} }' chicago: 'Baraka, Kim , Ifrah Idrees, Taylor Kessler Faulkner, Erdem Biyik, Serena Booth, Mohamed Chetouani, Daniel H. Grollman, et al. “Human-Interactive Robot Learning: Definition, Challenges, and Recommendations.” Transactions on Human-Robot Interaction, n.d.' ieee: 'K. Baraka et al., “Human-Interactive Robot Learning: Definition, Challenges, and Recommendations,” Transactions on Human-Robot Interaction.' mla: 'Baraka, Kim, et al. “Human-Interactive Robot Learning: Definition, Challenges, and Recommendations.” Transactions on Human-Robot Interaction.' short: K. Baraka, I. Idrees, T.K. Faulkner, E. Biyik, S. Booth, M. Chetouani, D.H. Grollman, A. Saran, E. Senft, S. Tulli, A.-L. Vollmer, A. Andriella, H. Beierling, T. Horter, J. Kober, I. Sheidlower, M.E. Taylor, S. van Waveren, X. Xiao, Transactions on Human-Robot Interaction (n.d.). date_created: 2025-09-17T12:42:45Z date_updated: 2025-09-17T13:40:16Z keyword: - Robot learning - Interactive learning systems - Human-robot interaction - Human-in-the-loop machine learning - Teaching and learning language: - iso: eng project: - _id: '123' name: TRR 318 - Subproject B5 publication: Transactions on Human-Robot Interaction publication_status: submitted status: public title: 'Human-Interactive Robot Learning: Definition, Challenges, and Recommendations' type: journal_article user_id: '50995' year: '2025' ... --- _id: '63498' author: - first_name: Wilhelm full_name: Kirchgässner, Wilhelm last_name: Kirchgässner - first_name: Nikolas full_name: Förster, Nikolas last_name: Förster - first_name: Till full_name: Piepenbrock, Till last_name: Piepenbrock - first_name: Oliver full_name: Schweins, Oliver last_name: Schweins - first_name: Oliver full_name: Wallscheid, Oliver last_name: Wallscheid citation: ama: 'Kirchgässner W, Förster N, Piepenbrock T, Schweins O, Wallscheid O. HARDCORE: H-Field and Power Loss Estimation for Arbitrary Waveforms With Residual, Dilated Convolutional Neural Networks in Ferrite Cores. IEEE Transactions on Power Electronics. 2025;40(2):3326-3335. doi:10.1109/TPEL.2024.3488174' apa: 'Kirchgässner, W., Förster, N., Piepenbrock, T., Schweins, O., & Wallscheid, O. (2025). HARDCORE: H-Field and Power Loss Estimation for Arbitrary Waveforms With Residual, Dilated Convolutional Neural Networks in Ferrite Cores. IEEE Transactions on Power Electronics, 40(2), 3326–3335. https://doi.org/10.1109/TPEL.2024.3488174' bibtex: '@article{Kirchgässner_Förster_Piepenbrock_Schweins_Wallscheid_2025, title={HARDCORE: H-Field and Power Loss Estimation for Arbitrary Waveforms With Residual, Dilated Convolutional Neural Networks in Ferrite Cores}, volume={40}, DOI={10.1109/TPEL.2024.3488174}, number={2}, journal={IEEE Transactions on Power Electronics}, author={Kirchgässner, Wilhelm and Förster, Nikolas and Piepenbrock, Till and Schweins, Oliver and Wallscheid, Oliver}, year={2025}, pages={3326–3335} }' chicago: 'Kirchgässner, Wilhelm, Nikolas Förster, Till Piepenbrock, Oliver Schweins, and Oliver Wallscheid. “HARDCORE: H-Field and Power Loss Estimation for Arbitrary Waveforms With Residual, Dilated Convolutional Neural Networks in Ferrite Cores.” IEEE Transactions on Power Electronics 40, no. 2 (2025): 3326–35. https://doi.org/10.1109/TPEL.2024.3488174.' ieee: 'W. Kirchgässner, N. Förster, T. Piepenbrock, O. Schweins, and O. Wallscheid, “HARDCORE: H-Field and Power Loss Estimation for Arbitrary Waveforms With Residual, Dilated Convolutional Neural Networks in Ferrite Cores,” IEEE Transactions on Power Electronics, vol. 40, no. 2, pp. 3326–3335, 2025, doi: 10.1109/TPEL.2024.3488174.' mla: 'Kirchgässner, Wilhelm, et al. “HARDCORE: H-Field and Power Loss Estimation for Arbitrary Waveforms With Residual, Dilated Convolutional Neural Networks in Ferrite Cores.” IEEE Transactions on Power Electronics, vol. 40, no. 2, 2025, pp. 3326–35, doi:10.1109/TPEL.2024.3488174.' short: W. Kirchgässner, N. Förster, T. Piepenbrock, O. Schweins, O. Wallscheid, IEEE Transactions on Power Electronics 40 (2025) 3326–3335. date_created: 2026-01-06T08:07:13Z date_updated: 2026-01-06T08:08:01Z department: - _id: '52' doi: 10.1109/TPEL.2024.3488174 intvolume: ' 40' issue: '2' keyword: - Mathematical models - Estimation - Data models - Convolutional neural networks - Accuracy - Magnetic hysteresis - Magnetic cores - Temperature measurement - Magnetic domains - Temperature distribution - Convolutional neural network (CNN) - machine learning (ML) - magnetics page: 3326-3335 publication: IEEE Transactions on Power Electronics status: public title: 'HARDCORE: H-Field and Power Loss Estimation for Arbitrary Waveforms With Residual, Dilated Convolutional Neural Networks in Ferrite Cores' type: journal_article user_id: '83383' volume: 40 year: '2025' ... --- _id: '54960' abstract: - lang: ger text: Das Fachdidaktische Wissen (FDW) wird als zentrale Komponente des Professionswissens von Lehrkräften bereits lange intensiv untersucht. Bislang liegen Ergebnisse zu Zusammenhängen des FDW mit anderen Professionswissensbereichen, zur Performanz in prototypischen Handlungssituationen und erste datengestützte inhaltlich-hierarchische Analysen auf Basis von Item Response Modellen (IRT-Modellen) vor. Im Zusammenhang mit einem projektübergreifend durchgeführten Vergleich entsprechender IRT-Modelle haben sich jedoch Limitationen bei der Vereinbarkeit und der inhaltlichen Reichhaltigkeit entsprechender Ergebnisse gezeigt, wie im Beitrag vorgestellt wird . Daher werden Analysemethoden aus dem Bereich des Machine Learning (unsupervised) vorgeschlagen, welche im Gegensatz zu IRT-Modellen auch nicht-hierarchische inhaltliche Strukturen aufdecken können. Es werden Ergebnisse entsprechender Clusteranalysen sowie Analysepläne zur Unterstützung dieser auf Basis der authentischen Sprachproduktionen von Proband:innen mithilfe von Natural Language Processing vorgestellt. author: - first_name: Jannis full_name: Zeller, Jannis id: '99022' last_name: Zeller orcid: 0000-0002-1834-5520 - first_name: Josef full_name: Riese, Josef id: '429' last_name: Riese orcid: 0000-0003-2927-2619 citation: ama: 'Zeller J, Riese J. Fähigkeitsprofile im Physikdidaktischen Wissen mithilfe von Machine Learning. In: van Vorst H, ed. Frühe naturwissenschaftliche Bildung, Tagungsband der GDCP Jahrestagung 2023. Gesellschaft für Didaktik der Chemie und Physik; 2024:122-125.' apa: Zeller, J., & Riese, J. (2024). Fähigkeitsprofile im Physikdidaktischen Wissen mithilfe von Machine Learning. In H. van Vorst (Ed.), Frühe naturwissenschaftliche Bildung, Tagungsband der GDCP Jahrestagung 2023 (pp. 122–125). Gesellschaft für Didaktik der Chemie und Physik. bibtex: '@inproceedings{Zeller_Riese_2024, place={Hamburg}, title={Fähigkeitsprofile im Physikdidaktischen Wissen mithilfe von Machine Learning}, booktitle={Frühe naturwissenschaftliche Bildung, Tagungsband der GDCP Jahrestagung 2023}, publisher={Gesellschaft für Didaktik der Chemie und Physik}, author={Zeller, Jannis and Riese, Josef}, editor={van Vorst, Helena}, year={2024}, pages={122–125} }' chicago: 'Zeller, Jannis, and Josef Riese. “Fähigkeitsprofile im Physikdidaktischen Wissen mithilfe von Machine Learning.” In Frühe naturwissenschaftliche Bildung, Tagungsband der GDCP Jahrestagung 2023, edited by Helena van Vorst, 122–25. Hamburg: Gesellschaft für Didaktik der Chemie und Physik, 2024.' ieee: J. Zeller and J. Riese, “Fähigkeitsprofile im Physikdidaktischen Wissen mithilfe von Machine Learning,” in Frühe naturwissenschaftliche Bildung, Tagungsband der GDCP Jahrestagung 2023, Hamburg, 2024, pp. 122–125. mla: Zeller, Jannis, and Josef Riese. “Fähigkeitsprofile im Physikdidaktischen Wissen mithilfe von Machine Learning.” Frühe naturwissenschaftliche Bildung, Tagungsband der GDCP Jahrestagung 2023, edited by Helena van Vorst, Gesellschaft für Didaktik der Chemie und Physik, 2024, pp. 122–25. short: 'J. Zeller, J. Riese, in: H. van Vorst (Ed.), Frühe naturwissenschaftliche Bildung, Tagungsband der GDCP Jahrestagung 2023, Gesellschaft für Didaktik der Chemie und Physik, Hamburg, 2024, pp. 122–125.' conference: location: Hamburg name: GDCP Jahrestagung 2023 date_created: 2024-07-01T14:33:40Z date_updated: 2024-07-03T08:47:31Z ddc: - '370' department: - _id: '15' - _id: '299' editor: - first_name: Helena full_name: van Vorst, Helena last_name: van Vorst file: - access_level: closed content_type: application/pdf creator: jzeller date_created: 2024-07-01T14:27:20Z date_updated: 2024-07-01T14:27:20Z file_id: '54961' file_name: Zeller, Riese (2024) Fähigkeitsprofile im Physikdidaktischen Wissen mithilfe von ML.pdf file_size: 389778 relation: main_file success: 1 file_date_updated: 2024-07-01T14:27:20Z has_accepted_license: '1' keyword: - Physikdidaktisches Wissen - Fähigkeitsprofile - Machine Learning language: - iso: ger page: 122-125 place: Hamburg publication: Frühe naturwissenschaftliche Bildung, Tagungsband der GDCP Jahrestagung 2023 publication_status: published publisher: Gesellschaft für Didaktik der Chemie und Physik status: public title: Fähigkeitsprofile im Physikdidaktischen Wissen mithilfe von Machine Learning type: conference user_id: '99022' year: '2024' ... --- _id: '55159' abstract: - lang: eng text: "We introduce a method based on Gaussian process regression to identify discrete variational principles from observed solutions of a field theory. The method is based on the data-based identification of a discrete Lagrangian density. It is a geometric machine learning technique in the sense that the variational structure of the true field theory is reflected in the data-driven model by design. We provide a rigorous convergence statement of the method. The proof circumvents challenges posed by the ambiguity of discrete Lagrangian densities in the inverse problem of variational calculus.\r\nMoreover, our method can be used to quantify model uncertainty in the equations of motions and any linear observable of the discrete field theory. This is illustrated on the example of the discrete wave equation and Schrödinger equation.\r\nThe article constitutes an extension of our previous article arXiv:2404.19626 for the data-driven identification of (discrete) Lagrangians for variational dynamics from an ode setting to the setting of discrete pdes." author: - first_name: Christian full_name: Offen, Christian id: '85279' last_name: Offen orcid: 0000-0002-5940-8057 citation: ama: Offen C. Machine learning of discrete field theories with guaranteed convergence and uncertainty quantification. apa: Offen, C. (n.d.). Machine learning of discrete field theories with guaranteed convergence and uncertainty quantification. bibtex: '@article{Offen, title={Machine learning of discrete field theories with guaranteed convergence and uncertainty quantification}, author={Offen, Christian} }' chicago: Offen, Christian. “Machine Learning of Discrete Field Theories with Guaranteed Convergence and Uncertainty Quantification,” n.d. ieee: C. Offen, “Machine learning of discrete field theories with guaranteed convergence and uncertainty quantification.” . mla: Offen, Christian. Machine Learning of Discrete Field Theories with Guaranteed Convergence and Uncertainty Quantification. short: C. Offen, (n.d.). date_created: 2024-07-10T13:43:50Z date_updated: 2024-08-12T13:43:32Z ddc: - '510' department: - _id: '636' external_id: arxiv: - '2407.07642' file: - access_level: open_access content_type: application/pdf creator: coffen date_created: 2024-07-10T13:39:32Z date_updated: 2024-07-10T13:39:32Z description: |- We introduce a method based on Gaussian process regression to identify discrete variational principles from observed solutions of a field theory. The method is based on the data-based identification of a discrete Lagrangian density. It is a geometric machine learning technique in the sense that the variational structure of the true field theory is reflected in the data-driven model by design. We provide a rigorous convergence statement of the method. The proof circumvents challenges posed by the ambiguity of discrete Lagrangian densities in the inverse problem of variational calculus. Moreover, our method can be used to quantify model uncertainty in the equations of motions and any linear observable of the discrete field theory. This is illustrated on the example of the discrete wave equation and Schrödinger equation. The article constitutes an extension of our previous article for the data-driven identification of (discrete) Lagrangians for variational dynamics from an ode setting to the setting of discrete pdes. file_id: '55160' file_name: L_Collocation.pdf file_size: 4569314 relation: main_file title: Machine learning of discrete field theories with guaranteed convergence and uncertainty quantification file_date_updated: 2024-07-10T13:39:32Z has_accepted_license: '1' keyword: - System identification - inverse problem of variational calculus - Gaussian process - Lagrangian learning - physics informed machine learning - geometry aware learning language: - iso: eng oa: '1' page: '28' project: - _id: '52' name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing' publication_status: submitted related_material: link: - description: GitHub relation: software url: https://github.com/Christian-Offen/Lagrangian_GP_PDE status: public title: Machine learning of discrete field theories with guaranteed convergence and uncertainty quantification type: preprint user_id: '85279' year: '2024' ... --- _id: '56948' abstract: - lang: ger text: Das Fachdidaktische Wissen (FDW) steht als zentrale Komponente des Professionswissens angehender Lehrkräfte bereits länger im Fokus der fachdidaktischen Forschung. Bisherige Ergebnisse zu möglichen Entwicklungsstufen oder prototypischen Ausprägungen des FDW ermöglichen eine differenzierte Einordnung von Lernenden auf Basis der Bearbeitung erprobter, validierter Testinstrumente. Diese Testinstrumente sind häufig mit offenen Antwortformaten gestaltet und die nachträgliche Schließung solcher Testinstrumente hat sich als nicht unproblematisch in Hinblick auf Validität und Authentizität erwiesen. Um ein automatisiertes reichhaltiges Assessment-System auf Basis der bisherigen Forschungsergebnisse zu entwickeln, können alternativ erprobte offene Testinstrumente in Kombination mit Machine-Learning basierten Auswertungsverfahren genutzt werden. Im Vortrag werden Ergebnisse einer entsprechenden Analyse auf Basis eines vergleichsweise großen (844 Bearbeitungen) Datensatzes präsentiert. Dabei wird ein zweistufiger Assessment Prozess, in dem zunächst die offenen Aufgaben mithilfe eines Sprachmodells bepunktet werden und anschließend aus den Bepunktungen inhaltlich reichhaltiges Feedback erstellt wird, genutzt. author: - first_name: Jannis full_name: Zeller, Jannis id: '99022' last_name: Zeller orcid: 0000-0002-1834-5520 - first_name: Josef full_name: Riese, Josef id: '429' last_name: Riese orcid: 0000-0003-2927-2619 citation: ama: 'Zeller J, Riese J. Assessment des physikdidaktischen Wissens mithilfe von Machine Learning. In: Entdecken, lehren und forschen im Schülerlabor. GDCP Jahrestagung 2024.' apa: Zeller, J., & Riese, J. (n.d.). Assessment des physikdidaktischen Wissens mithilfe von Machine Learning. Entdecken, lehren und forschen im Schülerlabor. GDCP Jahrestagung 2024. Entdecken, lehren und forschen im Schülerlabor. GDCP Jahrestagung 2024, Bochum. bibtex: '@inproceedings{Zeller_Riese, title={Assessment des physikdidaktischen Wissens mithilfe von Machine Learning}, booktitle={Entdecken, lehren und forschen im Schülerlabor. GDCP Jahrestagung 2024}, author={Zeller, Jannis and Riese, Josef} }' chicago: Zeller, Jannis, and Josef Riese. “Assessment des physikdidaktischen Wissens mithilfe von Machine Learning.” In Entdecken, lehren und forschen im Schülerlabor. GDCP Jahrestagung 2024, n.d. ieee: J. Zeller and J. Riese, “Assessment des physikdidaktischen Wissens mithilfe von Machine Learning,” presented at the Entdecken, lehren und forschen im Schülerlabor. GDCP Jahrestagung 2024, Bochum. mla: Zeller, Jannis, and Josef Riese. “Assessment des physikdidaktischen Wissens mithilfe von Machine Learning.” Entdecken, lehren und forschen im Schülerlabor. GDCP Jahrestagung 2024. short: 'J. Zeller, J. Riese, in: Entdecken, lehren und forschen im Schülerlabor. GDCP Jahrestagung 2024, n.d.' conference: end_date: 2024-09-12 location: Bochum name: Entdecken, lehren und forschen im Schülerlabor. GDCP Jahrestagung 2024 start_date: 2024-09-09 date_created: 2024-11-08T07:39:57Z date_updated: 2024-11-08T07:40:44Z ddc: - '370' department: - _id: '15' - _id: '299' file: - access_level: closed content_type: application/pdf creator: jzeller date_created: 2024-11-08T07:39:37Z date_updated: 2024-11-08T07:39:37Z file_id: '56949' file_name: Tagungsbandbeitrag-Jannis-Zeller-GDCP2024_preprint.pdf file_size: 622347 relation: main_file success: 1 file_date_updated: 2024-11-08T07:39:37Z keyword: - Physikdidaktisches Wissen - Assessment - Machine Learning language: - iso: ger publication: Entdecken, lehren und forschen im Schülerlabor. GDCP Jahrestagung 2024 publication_status: inpress status: public title: Assessment des physikdidaktischen Wissens mithilfe von Machine Learning type: conference user_id: '99022' year: '2024' ... --- _id: '62078' abstract: - lang: eng text: 'Fiber reinforced plastics (FRP) exhibit strongly non-linear deformation behavior. To capture this in simulations, intricate models with a variety of parameters are typically used. The identification of values for such parameters is highly challenging and requires in depth understanding of the model itself. Machine learning (ML) is a promising approach for alleviating this challenge by directly predicting parameters based on experimental results. So far, this works mostly for purely artificial data. In this work, two approaches to generalize to experimental data are investigated: a sequential approach, leveraging understanding of the constitutive model and a direct, purely data driven approach. This is exemplary carried out for a highly non-linear strain rate dependent constitutive model for the shear behavior of FRP.The sequential model is found to work better on both artificial and experimental data. It is capable of extracting well suited parameters from the artificial data under realistic conditions. For the experimental data, the model performance depends on the composition of the experimental curves, varying between excellently suiting and reasonable predictions. Taking the expert knowledge into account for ML-model training led to far better results than the purely data driven approach. Robustifying the model predictions on experimental data promises further improvement. ' author: - first_name: Johannes full_name: Gerritzen, Johannes id: '105344' last_name: Gerritzen orcid: 0000-0002-0169-8602 - first_name: Andreas full_name: Hornig, Andreas last_name: Hornig - first_name: Peter full_name: Winkler, Peter last_name: Winkler - first_name: Maik full_name: Gude, Maik last_name: Gude citation: ama: 'Gerritzen J, Hornig A, Winkler P, Gude M. Direct parameter identification for highly nonlinear strain rate dependent constitutive models using machine learning. In: ECCM21 - Proceedings of the 21st European Conference on Composite Materials. Vol 3. European Society for Composite Materials (ESCM); 2024:1252–1259. doi:10.60691/yj56-np80' apa: Gerritzen, J., Hornig, A., Winkler, P., & Gude, M. (2024). Direct parameter identification for highly nonlinear strain rate dependent constitutive models using machine learning. ECCM21 - Proceedings of the 21st European Conference on Composite Materials, 3, 1252–1259. https://doi.org/10.60691/yj56-np80 bibtex: '@inproceedings{Gerritzen_Hornig_Winkler_Gude_2024, title={Direct parameter identification for highly nonlinear strain rate dependent constitutive models using machine learning}, volume={3}, DOI={10.60691/yj56-np80}, booktitle={ECCM21 - Proceedings of the 21st European Conference on Composite Materials}, publisher={European Society for Composite Materials (ESCM)}, author={Gerritzen, Johannes and Hornig, Andreas and Winkler, Peter and Gude, Maik}, year={2024}, pages={1252–1259} }' chicago: Gerritzen, Johannes, Andreas Hornig, Peter Winkler, and Maik Gude. “Direct Parameter Identification for Highly Nonlinear Strain Rate Dependent Constitutive Models Using Machine Learning.” In ECCM21 - Proceedings of the 21st European Conference on Composite Materials, 3:1252–1259. European Society for Composite Materials (ESCM), 2024. https://doi.org/10.60691/yj56-np80. ieee: 'J. Gerritzen, A. Hornig, P. Winkler, and M. Gude, “Direct parameter identification for highly nonlinear strain rate dependent constitutive models using machine learning,” in ECCM21 - Proceedings of the 21st European Conference on Composite Materials, 2024, vol. 3, pp. 1252–1259, doi: 10.60691/yj56-np80.' mla: Gerritzen, Johannes, et al. “Direct Parameter Identification for Highly Nonlinear Strain Rate Dependent Constitutive Models Using Machine Learning.” ECCM21 - Proceedings of the 21st European Conference on Composite Materials, vol. 3, European Society for Composite Materials (ESCM), 2024, pp. 1252–1259, doi:10.60691/yj56-np80. short: 'J. Gerritzen, A. Hornig, P. Winkler, M. Gude, in: ECCM21 - Proceedings of the 21st European Conference on Composite Materials, European Society for Composite Materials (ESCM), 2024, pp. 1252–1259.' date_created: 2025-11-04T12:47:06Z date_updated: 2026-02-27T06:46:21Z doi: 10.60691/yj56-np80 intvolume: ' 3' keyword: - Direct parameter identification - Machine learning - Convolutional neural networks - Strain rate dependency - Fiber reinforced plastics - woven composites - segmentation - synthetic training data - x-ray computed tomography language: - iso: eng page: 1252–1259 project: - _id: '130' name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten' - _id: '137' name: TRR 285 - Subproject A03 - _id: '131' name: TRR 285 - Project Area A publication: ECCM21 - Proceedings of the 21st European Conference on Composite Materials publication_identifier: isbn: - 978-2-912985-01-9 publisher: European Society for Composite Materials (ESCM) status: public title: Direct parameter identification for highly nonlinear strain rate dependent constitutive models using machine learning type: conference user_id: '105344' volume: 3 year: '2024' ... --- _id: '61273' abstract: - lang: eng text: "In human-machine explanation interactions, such as tutoring systems or customer support chatbots, it is important for the machine explainer to infer the human user's understanding. Nonverbal signals play an important role for expressing mental states like understanding and confusion in these interactions. However, an individual's expressions may vary depending on other factors. In cases where these factors are unknown, machine learning methods that infer understanding from nonverbal cues become unreliable. Stress for example has been shown to affect human expression, but it is not clear from the current research how stress affects the expression of understanding.\r\nTo address this gap, we design a paradigm that induces understanding and confusion through game rule explanations. During the explanations, self-perceived understanding and confusion are annotated by the participants. A stress condition is also introduced to enable the investigation of changes in the expression of social signals under stress.\r\nWe conducted a study to validate the stress induction and participants reported a statistically significant increase in stress during the stress condition compared to the neutral control condition. \r\nAdditionally, feedback from participants shows that the paradigm is effective in inducing understanding and confusion. \r\nThis paradigm paves the way for further studies investigating social signals of understanding to improve human-machine explanation interactions for varying contexts." author: - first_name: Jonas full_name: Paletschek, Jonas id: '98941' last_name: Paletschek citation: ama: 'Paletschek J. A Paradigm to Investigate Social Signals of Understanding and Their Susceptibility to Stress. In: 12th International Conference on  Affective Computing & Intelligent Interaction. IEEE; 2024. doi:10.1109/ACII63134.2024.00040' apa: Paletschek, J. (2024). A Paradigm to Investigate Social Signals of Understanding and Their Susceptibility to Stress. 12th International Conference on  Affective Computing & Intelligent Interaction. 12th International Conference on  Affective Computing & Intelligent Interaction, Glasgow. https://doi.org/10.1109/ACII63134.2024.00040 bibtex: '@inproceedings{Paletschek_2024, title={A Paradigm to Investigate Social Signals of Understanding and Their Susceptibility to Stress}, DOI={10.1109/ACII63134.2024.00040}, booktitle={12th International Conference on  Affective Computing & Intelligent Interaction}, publisher={IEEE}, author={Paletschek, Jonas}, year={2024} }' chicago: Paletschek, Jonas. “A Paradigm to Investigate Social Signals of Understanding and Their Susceptibility to Stress.” In 12th International Conference on  Affective Computing & Intelligent Interaction. IEEE, 2024. https://doi.org/10.1109/ACII63134.2024.00040. ieee: 'J. Paletschek, “A Paradigm to Investigate Social Signals of Understanding and Their Susceptibility to Stress,” presented at the 12th International Conference on  Affective Computing & Intelligent Interaction, Glasgow, 2024, doi: 10.1109/ACII63134.2024.00040.' mla: Paletschek, Jonas. “A Paradigm to Investigate Social Signals of Understanding and Their Susceptibility to Stress.” 12th International Conference on  Affective Computing & Intelligent Interaction, IEEE, 2024, doi:10.1109/ACII63134.2024.00040. short: 'J. Paletschek, in: 12th International Conference on  Affective Computing & Intelligent Interaction, IEEE, 2024.' conference: end_date: 2024-09-18 location: Glasgow name: 12th International Conference on Affective Computing & Intelligent Interaction start_date: 2024-09-15 date_created: 2025-09-15T11:24:56Z date_updated: 2025-09-16T07:57:53Z ddc: - '150' department: - _id: '660' doi: 10.1109/ACII63134.2024.00040 file: - access_level: closed content_type: application/pdf creator: paletsch date_created: 2025-09-15T11:18:01Z date_updated: 2025-09-15T11:18:01Z file_id: '61274' file_name: ACII2024_Camera_Ready.pdf file_size: 8807478 relation: main_file success: 1 file_date_updated: 2025-09-15T11:18:01Z has_accepted_license: '1' keyword: - Understanding - Nonverbal Social Signals - Stress Induction - Explanation - Machine Learning Bias language: - iso: eng project: - _id: '1200' name: TRR 318 - Teilprojekt A6 - Inklusive Ko-Konstruktion sozialer Signale des Verstehens publication: 12th International Conference on Affective Computing & Intelligent Interaction publication_status: published publisher: IEEE status: public title: A Paradigm to Investigate Social Signals of Understanding and Their Susceptibility to Stress type: conference user_id: '98941' year: '2024' ... --- _id: '55999' abstract: - lang: eng text: Clean hydrogen is a key aspect of carbon neutrality, necessitating robust methods for monitoring hydrogen concentration in critical infrastructures like pipelines or power plants. While semiconducting metal oxides such as In2O3 can monitor gas concentrations down to the ppm range, they often exhibit cross-sensitivity to other gases like H2O. In this study, we investigated whether cyclic optical illumination of a gas-sensitive In2O3 layer creates identifiable changes in a gas sensor´s electronic resistance that can be linked to H2 and H2O concentrations via machine learning. We exposed nanostructured In2O3 with a large surface area of 95 m2 g-1 to H2 concentrations (0-800 ppm) and relative humidity (0-70%) under cyclic activation utilizing blue light. The sensors were tested for 20 classes of gas combinations. A support vector machine achieved classification rates up to 92.0%, with reliable reproducibility (88.2 ± 2.7%) across five individual sensors using 10-fold cross-validation. Our findings suggest that cyclic optical activation can be used as a tool to classify H2 and H2O concentrations. article_type: original author: - first_name: 'Dominik ' full_name: 'Baier, Dominik ' last_name: Baier - first_name: 'Alexander ' full_name: 'Krüger, Alexander ' last_name: Krüger - first_name: 'Thorsten ' full_name: 'Wagner, Thorsten ' last_name: Wagner - first_name: Michael full_name: Tiemann, Michael id: '23547' last_name: Tiemann orcid: 0000-0003-1711-2722 - first_name: Christian full_name: Weinberger, Christian id: '11848' last_name: Weinberger citation: ama: 'Baier D, Krüger A, Wagner T, Tiemann M, Weinberger C. Gas Sensing with Nanoporous In2O3 under Cyclic Optical Activation: Machine Learning-Aided Classification of H2 and H2O. Chemosensors. 2024;12(9):178. doi:10.3390/chemosensors12090178' apa: 'Baier, D., Krüger, A., Wagner, T., Tiemann, M., & Weinberger, C. (2024). Gas Sensing with Nanoporous In2O3 under Cyclic Optical Activation: Machine Learning-Aided Classification of H2 and H2O. Chemosensors, 12(9), 178. https://doi.org/10.3390/chemosensors12090178' bibtex: '@article{Baier_Krüger_Wagner_Tiemann_Weinberger_2024, title={Gas Sensing with Nanoporous In2O3 under Cyclic Optical Activation: Machine Learning-Aided Classification of H2 and H2O}, volume={12}, DOI={10.3390/chemosensors12090178}, number={9}, journal={Chemosensors}, publisher={MDPI}, author={Baier, Dominik and Krüger, Alexander and Wagner, Thorsten and Tiemann, Michael and Weinberger, Christian}, year={2024}, pages={178} }' chicago: 'Baier, Dominik , Alexander Krüger, Thorsten Wagner, Michael Tiemann, and Christian Weinberger. “Gas Sensing with Nanoporous In2O3 under Cyclic Optical Activation: Machine Learning-Aided Classification of H2 and H2O.” Chemosensors 12, no. 9 (2024): 178. https://doi.org/10.3390/chemosensors12090178.' ieee: 'D. Baier, A. Krüger, T. Wagner, M. Tiemann, and C. Weinberger, “Gas Sensing with Nanoporous In2O3 under Cyclic Optical Activation: Machine Learning-Aided Classification of H2 and H2O,” Chemosensors, vol. 12, no. 9, p. 178, 2024, doi: 10.3390/chemosensors12090178.' mla: 'Baier, Dominik, et al. “Gas Sensing with Nanoporous In2O3 under Cyclic Optical Activation: Machine Learning-Aided Classification of H2 and H2O.” Chemosensors, vol. 12, no. 9, MDPI, 2024, p. 178, doi:10.3390/chemosensors12090178.' short: D. Baier, A. Krüger, T. Wagner, M. Tiemann, C. Weinberger, Chemosensors 12 (2024) 178. date_created: 2024-09-03T13:49:42Z date_updated: 2025-11-26T12:14:21Z ddc: - '540' department: - _id: '2' - _id: '307' doi: 10.3390/chemosensors12090178 file: - access_level: closed content_type: application/pdf creator: cweinber date_created: 2024-09-03T13:58:18Z date_updated: 2024-09-03T13:58:18Z file_id: '56000' file_name: chemosensors-12-00178.pdf file_size: 3275869 relation: main_file success: 1 file_date_updated: 2024-09-03T13:58:18Z has_accepted_license: '1' intvolume: ' 12' issue: '9' keyword: - resistive gas sensor - chemiresistor - semiconductor - metal oxide - In2O3 - mesoporous - hydrogen - humidtiy - machine learning - sustainable language: - iso: eng main_file_link: - open_access: '1' url: https://www.mdpi.com/2227-9040/12/9/178 oa: '1' page: '178' publication: Chemosensors publication_identifier: issn: - 2227-9040 publication_status: published publisher: MDPI quality_controlled: '1' status: public title: 'Gas Sensing with Nanoporous In2O3 under Cyclic Optical Activation: Machine Learning-Aided Classification of H2 and H2O' type: journal_article user_id: '11848' volume: 12 year: '2024' ... --- _id: '45299' abstract: - lang: eng text: Many applications are driven by Machine Learning (ML) today. While complex ML models lead to an accurate prediction, their inner decision-making is obfuscated. However, especially for high-stakes decisions, interpretability and explainability of the model are necessary. Therefore, we develop a holistic interpretability and explainability framework (HIEF) to objectively describe and evaluate an intelligent system’s explainable AI (XAI) capacities. This guides data scientists to create more transparent models. To evaluate our framework, we analyse 50 real estate appraisal papers to ensure the robustness of HIEF. Additionally, we identify six typical types of intelligent systems, so-called archetypes, which range from explanatory to predictive, and demonstrate how researchers can use the framework to identify blind-spot topics in their domain. Finally, regarding comprehensiveness, we used a random sample of six intelligent systems and conducted an applicability check to provide external validity. author: - first_name: Jan-Peter full_name: Kucklick, Jan-Peter id: '77066' last_name: Kucklick citation: ama: 'Kucklick J-P. HIEF: a holistic interpretability and explainability framework. Journal of Decision Systems. Published online 2023:1-41. doi:10.1080/12460125.2023.2207268' apa: 'Kucklick, J.-P. (2023). HIEF: a holistic interpretability and explainability framework. Journal of Decision Systems, 1–41. https://doi.org/10.1080/12460125.2023.2207268' bibtex: '@article{Kucklick_2023, title={HIEF: a holistic interpretability and explainability framework}, DOI={10.1080/12460125.2023.2207268}, journal={Journal of Decision Systems}, publisher={Taylor & Francis}, author={Kucklick, Jan-Peter}, year={2023}, pages={1–41} }' chicago: 'Kucklick, Jan-Peter. “HIEF: A Holistic Interpretability and Explainability Framework.” Journal of Decision Systems, 2023, 1–41. https://doi.org/10.1080/12460125.2023.2207268.' ieee: 'J.-P. Kucklick, “HIEF: a holistic interpretability and explainability framework,” Journal of Decision Systems, pp. 1–41, 2023, doi: 10.1080/12460125.2023.2207268.' mla: 'Kucklick, Jan-Peter. “HIEF: A Holistic Interpretability and Explainability Framework.” Journal of Decision Systems, Taylor & Francis, 2023, pp. 1–41, doi:10.1080/12460125.2023.2207268.' short: J.-P. Kucklick, Journal of Decision Systems (2023) 1–41. date_created: 2023-05-26T05:04:45Z date_updated: 2023-05-26T05:08:36Z department: - _id: '195' - _id: '196' doi: 10.1080/12460125.2023.2207268 keyword: - Explainable AI (XAI) - machine learning - interpretability - real estate appraisal - framework - taxonomy language: - iso: eng main_file_link: - url: https://www.tandfonline.com/doi/full/10.1080/12460125.2023.2207268 page: 1-41 publication: Journal of Decision Systems publication_identifier: issn: - 1246-0125 - 2116-7052 publication_status: published publisher: Taylor & Francis status: public title: 'HIEF: a holistic interpretability and explainability framework' type: journal_article user_id: '77066' year: '2023' ... --- _id: '60304' abstract: - lang: eng text: The focus towards multi-material and lightweight assemblies, driven by legal requirements on reducing emissions and energy consumptions, reveals important drawbacks and disadvantages of established joining processes, such as welding. In this context, mechanical joining technologies, such as clinching, are becoming more and more relevant especially in the automotive industry. However, the availability of only few standards and almost none systematic design methods causes a still very time- and cost-intensive assembly development process considering mainly expert knowledge and a considerable amount of experimental studies. Motivated by this, the presented work introduces a novel approach for the methodical design and dimensioning of mechanically clinched assemblies. Therefore, the utilization of regression models, such as machine learning algorithms, combined with manufacturing knowledge ensures a reliable estimation of individual clinched joint characteristics. In addition, the implementation of an engineering workbench enables the following data-driven and knowledge-based generation of high-quality initial assembly designs already in early product development phases. In a subsequent analysis and adjustment, these designs are being improved while guaranteeing joining safety and loading conformity. The presented results indicate that the methodological approach can pave the way to a more systematic design process of mechanical joining assemblies, which can significantly shorten the required number of iteration loops and therefore the product development time. author: - first_name: Christoph full_name: Zirngibl, Christoph last_name: Zirngibl - first_name: Sven full_name: Martin, Sven last_name: Martin - first_name: Christian full_name: Steinfelder, Christian last_name: Steinfelder - first_name: Benjamin full_name: Schleich, Benjamin last_name: Schleich - first_name: Thomas full_name: Tröster, Thomas last_name: Tröster - first_name: Alexander full_name: Brosius, Alexander last_name: Brosius - first_name: Sandro full_name: Wartzack, Sandro last_name: Wartzack citation: ama: 'Zirngibl C, Martin S, Steinfelder C, et al. Methodical approach for the design and dimensioning of mechanical clinched assemblies. In: Materials Research Proceedings. Vol 25. Materials Research Forum LLC; 2023. doi:10.21741/9781644902417-23' apa: Zirngibl, C., Martin, S., Steinfelder, C., Schleich, B., Tröster, T., Brosius, A., & Wartzack, S. (2023). Methodical approach for the design and dimensioning of mechanical clinched assemblies. Materials Research Proceedings, 25. https://doi.org/10.21741/9781644902417-23 bibtex: '@inproceedings{Zirngibl_Martin_Steinfelder_Schleich_Tröster_Brosius_Wartzack_2023, title={Methodical approach for the design and dimensioning of mechanical clinched assemblies}, volume={25}, DOI={10.21741/9781644902417-23}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Zirngibl, Christoph and Martin, Sven and Steinfelder, Christian and Schleich, Benjamin and Tröster, Thomas and Brosius, Alexander and Wartzack, Sandro}, year={2023} }' chicago: Zirngibl, Christoph, Sven Martin, Christian Steinfelder, Benjamin Schleich, Thomas Tröster, Alexander Brosius, and Sandro Wartzack. “Methodical Approach for the Design and Dimensioning of Mechanical Clinched Assemblies.” In Materials Research Proceedings, Vol. 25. Materials Research Forum LLC, 2023. https://doi.org/10.21741/9781644902417-23. ieee: 'C. Zirngibl et al., “Methodical approach for the design and dimensioning of mechanical clinched assemblies,” in Materials Research Proceedings, Erlangen-Nürnberg, 2023, vol. 25, doi: 10.21741/9781644902417-23.' mla: Zirngibl, Christoph, et al. “Methodical Approach for the Design and Dimensioning of Mechanical Clinched Assemblies.” Materials Research Proceedings, vol. 25, Materials Research Forum LLC, 2023, doi:10.21741/9781644902417-23. short: 'C. Zirngibl, S. Martin, C. Steinfelder, B. Schleich, T. Tröster, A. Brosius, S. Wartzack, in: Materials Research Proceedings, Materials Research Forum LLC, 2023.' conference: end_date: 2023-04-05 location: Erlangen-Nürnberg name: 20th International Conference on Sheet Metal start_date: 2023-04-02 date_created: 2025-06-23T08:08:23Z date_updated: 2025-06-23T08:15:07Z department: - _id: '630' doi: 10.21741/9781644902417-23 intvolume: ' 25' keyword: - Joining - Structural Analysis - Machine Learning language: - iso: eng project: - _id: '130' grant_number: '418701707' name: 'TRR 285: TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten' - _id: '132' name: 'TRR 285 - B: TRR 285 - Project Area B' - _id: '140' name: 'TRR 285 – B01: TRR 285 - Subproject B01' - _id: '144' name: 'TRR 285 – B05: TRR 285 - Subproject B05' publication: Materials Research Proceedings publication_identifier: issn: - 2474-395X publication_status: published publisher: Materials Research Forum LLC status: public title: Methodical approach for the design and dimensioning of mechanical clinched assemblies type: conference user_id: '104464' volume: 25 year: '2023' ... --- _id: '34140' abstract: - lang: eng text: In this paper, machine learning techniques will be used to classify different PCB layouts given their electromagnetic frequency spectra. These spectra result from a simulated near-field measurement of electric field strengths at different locations. Measured values consist of real and imaginary parts (amplitude and phase) in X, Y and Z directions. Training data was obtained in the time domain by varying transmission line geometries (size, distance and signaling). It was then transformed into the frequency domain and used as deep neural network input. Principal component analysis was applied to reduce the sample dimension. The results show that classifying different designs is possible with high accuracy based on synthetic data. Future work comprises measurements of real, custom-made PCB with varying parameters to adapt the simulation model and also test the neural network. Finally, the trained model could be used to give hints about the error’s cause when overshooting EMC limits. author: - first_name: Jad full_name: Maalouly, Jad last_name: Maalouly - first_name: Dennis full_name: Hemker, Dennis last_name: Hemker - first_name: Christian full_name: Hedayat, Christian last_name: Hedayat - first_name: Christian full_name: Rückert, Christian last_name: Rückert - first_name: Ivan full_name: Kaufmann, Ivan last_name: Kaufmann - first_name: Marcel full_name: Olbrich, Marcel last_name: Olbrich - first_name: Sven full_name: Lange, Sven id: '38240' last_name: Lange - first_name: Harald full_name: Mathis, Harald last_name: Mathis citation: ama: 'Maalouly J, Hemker D, Hedayat C, et al. AI Assisted Interference Classification to Improve EMC Troubleshooting in Electronic System Development. In: 2022 Kleinheubach Conference. IEEE; 2022.' apa: Maalouly, J., Hemker, D., Hedayat, C., Rückert, C., Kaufmann, I., Olbrich, M., Lange, S., & Mathis, H. (2022). AI Assisted Interference Classification to Improve EMC Troubleshooting in Electronic System Development. 2022 Kleinheubach Conference. 2022 Kleinheubach Conference, Miltenberg, Germany. bibtex: '@inproceedings{Maalouly_Hemker_Hedayat_Rückert_Kaufmann_Olbrich_Lange_Mathis_2022, place={Miltenberg, Germany}, title={AI Assisted Interference Classification to Improve EMC Troubleshooting in Electronic System Development}, booktitle={2022 Kleinheubach Conference}, publisher={IEEE}, author={Maalouly, Jad and Hemker, Dennis and Hedayat, Christian and Rückert, Christian and Kaufmann, Ivan and Olbrich, Marcel and Lange, Sven and Mathis, Harald}, year={2022} }' chicago: 'Maalouly, Jad, Dennis Hemker, Christian Hedayat, Christian Rückert, Ivan Kaufmann, Marcel Olbrich, Sven Lange, and Harald Mathis. “AI Assisted Interference Classification to Improve EMC Troubleshooting in Electronic System Development.” In 2022 Kleinheubach Conference. Miltenberg, Germany: IEEE, 2022.' ieee: J. Maalouly et al., “AI Assisted Interference Classification to Improve EMC Troubleshooting in Electronic System Development,” presented at the 2022 Kleinheubach Conference, Miltenberg, Germany, 2022. mla: Maalouly, Jad, et al. “AI Assisted Interference Classification to Improve EMC Troubleshooting in Electronic System Development.” 2022 Kleinheubach Conference, IEEE, 2022. short: 'J. Maalouly, D. Hemker, C. Hedayat, C. Rückert, I. Kaufmann, M. Olbrich, S. Lange, H. Mathis, in: 2022 Kleinheubach Conference, IEEE, Miltenberg, Germany, 2022.' conference: end_date: 2022-09-29 location: Miltenberg, Germany name: 2022 Kleinheubach Conference start_date: 2022-09-27 date_created: 2022-11-24T14:21:17Z date_updated: 2022-11-24T14:21:34Z department: - _id: '59' - _id: '485' keyword: - emc - pcb - electronic system development - machine learning - neural network language: - iso: eng main_file_link: - url: https://ieeexplore.ieee.org/document/9954484 place: Miltenberg, Germany project: - _id: '52' name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing' publication: 2022 Kleinheubach Conference publication_identifier: eisbn: - 978-3-948571-07-8 publication_status: published publisher: IEEE status: public title: AI Assisted Interference Classification to Improve EMC Troubleshooting in Electronic System Development type: conference user_id: '38240' year: '2022' ... --- _id: '33510' abstract: - lang: eng text: In the manufacture of real wood products, defects can quickly occur during the production process. To quickly sort out these defects, a system is needed that finds damage in the irregularly structured surfaces of the product. The difficulty in this task is that each surface is visually different and no standard defects can be defined. Thus, damage detection using correlation does not work, so this paper will test different machine learning methods. To evaluate different machine learning methods, a data set is needed. For this reason, the available samples were recorded manually using a static fixed camera. Subsequently, the images were divided into sub-images, which resulted in a relatively small data set. Next, a convolutional neural network (CNN) was constructed to classify the images. However, this approach did not lead to a generalized solution, so the dataset was hashed using the a- and pHash. These hash values were then trained with a fully supervised system that will later serve as a reference model, in the semi-supervised learning procedures. To improve the supervised model and not have to label every data point, semi-supervised learning methods are used in the following. For this purpose, the CEAL method (wrapper method) is considered in the first and then the Π-Model (intrinsically semi-supervised). author: - first_name: Tom full_name: Sander, Tom last_name: Sander - first_name: Sven full_name: Lange, Sven id: '38240' last_name: Lange - first_name: Ulrich full_name: Hilleringmann, Ulrich last_name: Hilleringmann - first_name: Volker full_name: Geneiß, Volker last_name: Geneiß - first_name: Christian full_name: Hedayat, Christian last_name: Hedayat - first_name: Harald full_name: Kuhn, Harald last_name: Kuhn citation: ama: 'Sander T, Lange S, Hilleringmann U, Geneiß V, Hedayat C, Kuhn H. Detection of Defects on Irregularly Structured Surfaces using Supervised and Semi-Supervised Learning Methods. In: 2022 Smart Systems Integration (SSI). IEEE; 2022. doi:10.1109/ssi56489.2022.9901433' apa: Sander, T., Lange, S., Hilleringmann, U., Geneiß, V., Hedayat, C., & Kuhn, H. (2022). Detection of Defects on Irregularly Structured Surfaces using Supervised and Semi-Supervised Learning Methods. 2022 Smart Systems Integration (SSI). 2022 Smart Systems Integration (SSI), Grenoble, France. https://doi.org/10.1109/ssi56489.2022.9901433 bibtex: '@inproceedings{Sander_Lange_Hilleringmann_Geneiß_Hedayat_Kuhn_2022, place={Grenoble, France}, title={Detection of Defects on Irregularly Structured Surfaces using Supervised and Semi-Supervised Learning Methods}, DOI={10.1109/ssi56489.2022.9901433}, booktitle={2022 Smart Systems Integration (SSI)}, publisher={IEEE}, author={Sander, Tom and Lange, Sven and Hilleringmann, Ulrich and Geneiß, Volker and Hedayat, Christian and Kuhn, Harald}, year={2022} }' chicago: 'Sander, Tom, Sven Lange, Ulrich Hilleringmann, Volker Geneiß, Christian Hedayat, and Harald Kuhn. “Detection of Defects on Irregularly Structured Surfaces Using Supervised and Semi-Supervised Learning Methods.” In 2022 Smart Systems Integration (SSI). Grenoble, France: IEEE, 2022. https://doi.org/10.1109/ssi56489.2022.9901433.' ieee: 'T. Sander, S. Lange, U. Hilleringmann, V. Geneiß, C. Hedayat, and H. Kuhn, “Detection of Defects on Irregularly Structured Surfaces using Supervised and Semi-Supervised Learning Methods,” presented at the 2022 Smart Systems Integration (SSI), Grenoble, France, 2022, doi: 10.1109/ssi56489.2022.9901433.' mla: Sander, Tom, et al. “Detection of Defects on Irregularly Structured Surfaces Using Supervised and Semi-Supervised Learning Methods.” 2022 Smart Systems Integration (SSI), IEEE, 2022, doi:10.1109/ssi56489.2022.9901433. short: 'T. Sander, S. Lange, U. Hilleringmann, V. Geneiß, C. Hedayat, H. Kuhn, in: 2022 Smart Systems Integration (SSI), IEEE, Grenoble, France, 2022.' conference: end_date: 2022-04-28 location: Grenoble, France name: 2022 Smart Systems Integration (SSI) start_date: 2022-04-27 date_created: 2022-10-04T11:35:55Z date_updated: 2022-10-04T11:37:39Z department: - _id: '59' - _id: '485' doi: 10.1109/ssi56489.2022.9901433 keyword: - Machine Learning - CNN - Hashing - semi-supervised learning language: - iso: eng main_file_link: - url: https://ieeexplore.ieee.org/document/9901433 place: Grenoble, France project: - _id: '52' name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing' publication: 2022 Smart Systems Integration (SSI) publication_status: published publisher: IEEE status: public title: Detection of Defects on Irregularly Structured Surfaces using Supervised and Semi-Supervised Learning Methods type: conference user_id: '38240' year: '2022' ... --- _id: '48878' abstract: - lang: eng text: Due to the rise of continuous data-generating applications, analyzing data streams has gained increasing attention over the past decades. A core research area in stream data is stream classification, which categorizes or detects data points within an evolving stream of observations. Areas of stream classification are diverse\textemdash ranging, e.g., from monitoring sensor data to analyzing a wide range of (social) media applications. Research in stream classification is related to developing methods that adapt to the changing and potentially volatile data stream. It focuses on individual aspects of the stream classification pipeline, e.g., designing suitable algorithm architectures, an efficient train and test procedure, or detecting so-called concept drifts. As a result of the many different research questions and strands, the field is challenging to grasp, especially for beginners. This survey explores, summarizes, and categorizes work within the domain of stream classification and identifies core research threads over the past few years. It is structured based on the stream classification process to facilitate coordination within this complex topic, including common application scenarios and benchmarking data sets. Thus, both newcomers to the field and experts who want to widen their scope can gain (additional) insight into this research area and find starting points and pointers to more in-depth literature on specific issues and research directions in the field. author: - first_name: Lena full_name: Clever, Lena last_name: Clever - first_name: Janina Susanne full_name: Pohl, Janina Susanne last_name: Pohl - first_name: Jakob full_name: Bossek, Jakob id: '102979' last_name: Bossek orcid: 0000-0002-4121-4668 - first_name: Pascal full_name: Kerschke, Pascal last_name: Kerschke - first_name: Heike full_name: Trautmann, Heike last_name: Trautmann citation: ama: 'Clever L, Pohl JS, Bossek J, Kerschke P, Trautmann H. Process-Oriented Stream Classification Pipeline: A Literature Review. Applied Sciences. 2022;12(18):9094. doi:10.3390/app12189094' apa: 'Clever, L., Pohl, J. S., Bossek, J., Kerschke, P., & Trautmann, H. (2022). Process-Oriented Stream Classification Pipeline: A Literature Review. Applied Sciences, 12(18), 9094. https://doi.org/10.3390/app12189094' bibtex: '@article{Clever_Pohl_Bossek_Kerschke_Trautmann_2022, title={Process-Oriented Stream Classification Pipeline: A Literature Review}, volume={12}, DOI={10.3390/app12189094}, number={18}, journal={Applied Sciences}, publisher={{Multidisciplinary Digital Publishing Institute}}, author={Clever, Lena and Pohl, Janina Susanne and Bossek, Jakob and Kerschke, Pascal and Trautmann, Heike}, year={2022}, pages={9094} }' chicago: 'Clever, Lena, Janina Susanne Pohl, Jakob Bossek, Pascal Kerschke, and Heike Trautmann. “Process-Oriented Stream Classification Pipeline: A Literature Review.” Applied Sciences 12, no. 18 (2022): 9094. https://doi.org/10.3390/app12189094.' ieee: 'L. Clever, J. S. Pohl, J. Bossek, P. Kerschke, and H. Trautmann, “Process-Oriented Stream Classification Pipeline: A Literature Review,” Applied Sciences, vol. 12, no. 18, p. 9094, 2022, doi: 10.3390/app12189094.' mla: 'Clever, Lena, et al. “Process-Oriented Stream Classification Pipeline: A Literature Review.” Applied Sciences, vol. 12, no. 18, {Multidisciplinary Digital Publishing Institute}, 2022, p. 9094, doi:10.3390/app12189094.' short: L. Clever, J.S. Pohl, J. Bossek, P. Kerschke, H. Trautmann, Applied Sciences 12 (2022) 9094. date_created: 2023-11-14T15:58:57Z date_updated: 2023-12-13T10:50:56Z department: - _id: '819' doi: 10.3390/app12189094 intvolume: ' 12' issue: '18' keyword: - big data - data mining - data stream analysis - machine learning - stream classification - supervised learning language: - iso: eng page: '9094' publication: Applied Sciences publication_identifier: issn: - 2076-3417 publisher: '{Multidisciplinary Digital Publishing Institute}' status: public title: 'Process-Oriented Stream Classification Pipeline: A Literature Review' type: journal_article user_id: '102979' volume: 12 year: '2022' ... --- _id: '35732' abstract: - lang: eng text: While the Information Systems (IS) discipline has researched digital platforms extensively, the body of knowledge appertaining to platforms still appears fragmented and lacking conceptual consistency. Based on automated text mining and unsupervised machine learning, we collect, analyze, and interpret the IS discipline’s comprehensive research on platforms—comprising 11,049 papers spanning 44 years of research activity. From a cluster analysis concerning platform concepts’ semantically most similar words, we identify six research streams on platforms, each with their own platform terms. Based on interpreting the identified concepts vis-à-vis the extant research and considering a temporal perspective on the concepts’ application, we present a lexicon of platform concepts, to guide further research on platforms in the IS discipline. Researchers and managers can build on our results to position their work appropriately, applying a specific theoretical perspective on platforms in isolation or combining multiple perspectives to study platform phenomena at a more abstract level. article_type: original author: - first_name: Christian full_name: Bartelheimer, Christian id: '49160' last_name: Bartelheimer - first_name: Philipp full_name: zur Heiden, Philipp id: '64394' last_name: zur Heiden - first_name: Hedda full_name: Lüttenberg, Hedda last_name: Lüttenberg - first_name: Daniel full_name: Beverungen, Daniel id: '59677' last_name: Beverungen citation: ama: 'Bartelheimer C, zur Heiden P, Lüttenberg H, Beverungen D. Systematizing the lexicon of platforms in information systems: a data-driven study. Electronic Markets. 2022;32:375-396. doi:10.1007/s12525-022-00530-6' apa: 'Bartelheimer, C., zur Heiden, P., Lüttenberg, H., & Beverungen, D. (2022). Systematizing the lexicon of platforms in information systems: a data-driven study. Electronic Markets, 32, 375–396. https://doi.org/10.1007/s12525-022-00530-6' bibtex: '@article{Bartelheimer_zur Heiden_Lüttenberg_Beverungen_2022, title={Systematizing the lexicon of platforms in information systems: a data-driven study}, volume={32}, DOI={10.1007/s12525-022-00530-6}, journal={Electronic Markets}, publisher={Springer Science and Business Media LLC}, author={Bartelheimer, Christian and zur Heiden, Philipp and Lüttenberg, Hedda and Beverungen, Daniel}, year={2022}, pages={375–396} }' chicago: 'Bartelheimer, Christian, Philipp zur Heiden, Hedda Lüttenberg, and Daniel Beverungen. “Systematizing the Lexicon of Platforms in Information Systems: A Data-Driven Study.” Electronic Markets 32 (2022): 375–96. https://doi.org/10.1007/s12525-022-00530-6.' ieee: 'C. Bartelheimer, P. zur Heiden, H. Lüttenberg, and D. Beverungen, “Systematizing the lexicon of platforms in information systems: a data-driven study,” Electronic Markets, vol. 32, pp. 375–396, 2022, doi: 10.1007/s12525-022-00530-6.' mla: 'Bartelheimer, Christian, et al. “Systematizing the Lexicon of Platforms in Information Systems: A Data-Driven Study.” Electronic Markets, vol. 32, Springer Science and Business Media LLC, 2022, pp. 375–96, doi:10.1007/s12525-022-00530-6.' short: C. Bartelheimer, P. zur Heiden, H. Lüttenberg, D. Beverungen, Electronic Markets 32 (2022) 375–396. date_created: 2023-01-10T10:00:55Z date_updated: 2024-04-18T12:40:34Z ddc: - '380' department: - _id: '526' doi: 10.1007/s12525-022-00530-6 file: - access_level: closed content_type: application/pdf creator: dabe date_created: 2024-04-18T12:39:00Z date_updated: 2024-04-18T12:39:00Z file_id: '53573' file_name: EM - Lexicon of Platform Terms.pdf file_size: 1262427 relation: main_file success: 1 file_date_updated: 2024-04-18T12:39:00Z has_accepted_license: '1' intvolume: ' 32' jel: - L86 keyword: - Platform - Text mining - Machine learning - Data communications - Interpretive research - Systems design and implementation language: - iso: eng page: 375-396 publication: Electronic Markets publication_identifier: issn: - 1019-6781 - 1422-8890 publication_status: published publisher: Springer Science and Business Media LLC quality_controlled: '1' status: public title: 'Systematizing the lexicon of platforms in information systems: a data-driven study' type: journal_article user_id: '59677' volume: 32 year: '2022' ... --- _id: '31066' 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. ' author: - first_name: Oliver full_name: Schön, Oliver last_name: Schön - first_name: Ricarda-Samantha full_name: Götte, Ricarda-Samantha id: '43992' last_name: Götte - first_name: Julia full_name: Timmermann, Julia id: '15402' last_name: Timmermann 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' 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 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} }' 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. 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.' 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.' conference: end_date: 2022-07-01 location: Casablanca, Morocco name: 14th IFAC Workshop on Adaptive and Learning Control Systems (ALCOS 2022) start_date: 2022-06-29 date_created: 2022-05-05T06:22:55Z date_updated: 2024-11-13T08:43:16Z department: - _id: '153' - _id: '880' doi: https://doi.org/10.1016/j.ifacol.2022.07.282 intvolume: ' 55' issue: '12' keyword: - neural networks - physics-guided - data-driven - multi-objective optimization - system identification - machine learning - dynamical systems language: - iso: eng page: 19-24 publication: 14th IFAC Workshop on Adaptive and Learning Control Systems (ALCOS 2022) quality_controlled: '1' status: public title: Multi-Objective Physics-Guided Recurrent Neural Networks for Identifying Non-Autonomous Dynamical Systems type: conference user_id: '43992' volume: 55 year: '2022' ... --- _id: '21004' abstract: - lang: eng 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.' author: - first_name: Marcel Dominik full_name: Wever, Marcel Dominik id: '33176' last_name: Wever orcid: ' https://orcid.org/0000-0001-9782-6818' - first_name: Alexander full_name: Tornede, Alexander id: '38209' last_name: Tornede - first_name: Felix full_name: Mohr, Felix last_name: Mohr - first_name: Eyke full_name: Hüllermeier, Eyke id: '48129' last_name: Hüllermeier 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' 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' 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} }' 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.' 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.' 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.' short: M.D. Wever, A. Tornede, F. Mohr, E. Hüllermeier, IEEE Transactions on Pattern Analysis and Machine Intelligence (2021) 1–1. date_created: 2021-01-16T14:48:13Z date_updated: 2022-01-06T06:54:42Z department: - _id: '34' - _id: '355' - _id: '26' doi: 10.1109/tpami.2021.3051276 keyword: - Automated Machine Learning - Multi Label Classification - Hierarchical Planning - Bayesian Optimization language: - iso: eng page: 1-1 project: - _id: '1' name: SFB 901 - _id: '3' name: SFB 901 - Project Area B - _id: '10' name: SFB 901 - Subproject B2 - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: IEEE Transactions on Pattern Analysis and Machine Intelligence publication_identifier: issn: - 0162-8828 - 2160-9292 - 1939-3539 publication_status: published status: public title: 'AutoML for Multi-Label Classification: Overview and Empirical Evaluation' type: journal_article user_id: '5786' year: '2021' ...