[{"oa":"1","publisher":"Wiley","date_updated":"2025-09-03T09:33:23Z","volume":25,"date_created":"2025-01-01T16:11:38Z","author":[{"id":"41470","full_name":"Junker, Annika","orcid":"0009-0002-6475-2503","last_name":"Junker","first_name":"Annika"},{"full_name":"Timmermann, Julia","id":"15402","last_name":"Timmermann","first_name":"Julia"},{"first_name":"Ansgar","last_name":"Trächtler","id":"552","full_name":"Trächtler, Ansgar"}],"title":"Adaptive Data‐Driven Models in Port‐Hamiltonian Form for Control Design","doi":"10.1002/pamm.202400154","main_file_link":[{"url":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pamm.202400154","open_access":"1"}],"quality_controlled":"1","publication_identifier":{"issn":["1617-7061","1617-7061"]},"publication_status":"published","issue":"1","year":"2024","intvolume":"        25","citation":{"mla":"Junker, Annika, et al. “Adaptive Data‐Driven Models in Port‐Hamiltonian Form for Control Design.” <i>PAMM</i>, vol. 25, no. 1, Wiley, 2024, doi:<a href=\"https://doi.org/10.1002/pamm.202400154\">10.1002/pamm.202400154</a>.","bibtex":"@article{Junker_Timmermann_Trächtler_2024, title={Adaptive Data‐Driven Models in Port‐Hamiltonian Form for Control Design}, volume={25}, DOI={<a href=\"https://doi.org/10.1002/pamm.202400154\">10.1002/pamm.202400154</a>}, number={1}, journal={PAMM}, publisher={Wiley}, author={Junker, Annika and Timmermann, Julia and Trächtler, Ansgar}, year={2024} }","short":"A. Junker, J. Timmermann, A. Trächtler, PAMM 25 (2024).","apa":"Junker, A., Timmermann, J., &#38; Trächtler, A. (2024). Adaptive Data‐Driven Models in Port‐Hamiltonian Form for Control Design. <i>PAMM</i>, <i>25</i>(1). <a href=\"https://doi.org/10.1002/pamm.202400154\">https://doi.org/10.1002/pamm.202400154</a>","ama":"Junker A, Timmermann J, Trächtler A. Adaptive Data‐Driven Models in Port‐Hamiltonian Form for Control Design. <i>PAMM</i>. 2024;25(1). doi:<a href=\"https://doi.org/10.1002/pamm.202400154\">10.1002/pamm.202400154</a>","chicago":"Junker, Annika, Julia Timmermann, and Ansgar Trächtler. “Adaptive Data‐Driven Models in Port‐Hamiltonian Form for Control Design.” <i>PAMM</i> 25, no. 1 (2024). <a href=\"https://doi.org/10.1002/pamm.202400154\">https://doi.org/10.1002/pamm.202400154</a>.","ieee":"A. Junker, J. Timmermann, and A. Trächtler, “Adaptive Data‐Driven Models in Port‐Hamiltonian Form for Control Design,” <i>PAMM</i>, vol. 25, no. 1, 2024, doi: <a href=\"https://doi.org/10.1002/pamm.202400154\">10.1002/pamm.202400154</a>."},"_id":"57893","project":[{"name":"DART: Datengetriebene Methoden in der Regelungstechnik","_id":"690"}],"department":[{"_id":"153"},{"_id":"880"}],"user_id":"15402","language":[{"iso":"eng"}],"publication":"PAMM","type":"journal_article","abstract":[{"text":"<jats:title>Abstract</jats:title><jats:p>Control engineering applications usually require a model that accurately represents the dynamics of the system. In addition to classical physical modeling, powerful data‐driven approaches are gaining popularity. However, the resulting models may not be ideal for control design due to their black‐box structure, which inherently limits interpretability. Formulating the system dynamics in port‐Hamiltonian form is highly beneficial, as its valuable property of passivity enables the straightforward design of globally stable controllers while ensuring physical interpretability. In a recently published article, we presented a method for data‐driven inference of port‐Hamiltonian models for complex mechatronic systems, requiring only fundamental physical prior knowledge. The resulting models accurately represent the nonlinear dynamics of the considered systems and are physically interpretable. In this contribution, we advance our previous work by including two key elements. Firstly, we demonstrate the application of the above described data‐driven PCHD models for controller design. Preserving the port‐Hamiltonian form in the closed loop not only guarantees global stability and robustness but also ensures desired speed and damping characteristics. Since control systems based on output measurements, which are continuously measured during operation due to the feedback structure, we secondly aim to use this data. Thus, we augment the existing modeling strategy with an intelligent adaptation approach to address uncertainties and (un)predictable system changes in mechatronic systems throughout their lifecycle, such as the installation of new components, wear, or temperature fluctuations during operation. Our proposed algorithm for recursively calculated data‐driven port‐Hamiltonian models utilizes a least‐squares approach with extensions such as automatically adjusting the forgetting factor and controlling the covariance matrix trace. We demonstrate the results through model‐based application on an academic example and experimental validation on a test bench.</jats:p>","lang":"eng"}],"status":"public"},{"abstract":[{"text":"Model‐based state observers require high‐quality models to deliver accurate state estimates. However, due to time or cost shortage, modeling simplifications or numerical issues, models often have severe inaccuracies that may lead to insufficient and deficient control. Instead of attempting to iteratively model these deviations, we address the challenge by the concept of joint estimation. Thus, we assume a linear combination of suitable functions to approximate the inaccuracies. The parameters of the linear combination are supposed to be time invariant and augment the model's state. Subsequently, the parameters can be identified simultaneously to the states within the observer. Referring to the principle of Occam's razor, the parameters are claimed to be sparse. Our former work shows that estimating states and model inaccuracies simultaneously by a sparsity promoting unscented Kalman filter yields not only high accuracy but also provides interpretable representations of underlying inaccuracies. Based on this work, our contribution is twofold: First, we apply our approach finally on a real‐world test bench, namely a golf robot. Within the experimental setting, we investigate closed loop behavior as well as how suitable functions need to be chosen to approximate the inaccuracies in a physically interpretable way. Results do not only provide high state estimation accuracy but also meaningful insights into the system's inaccuracies. Second, we discuss and establish a method to automatically adapt and update the model based on collected data of the linear combination during operation. Examining past parameter estimates by principal component analysis, a moving window is utilized to extract the most dominant functions. These are kept characterizing the model inaccuracies, while nondominant functions are automatically neglected and refilled with novel function candidates. After analysis and rebuilding, this updated function set is subsequently fed back into the joint estimation loop and deployed for further estimation. Hence, we give a holistic paradigm of how to analyze and combat model inaccuracies while ensuring high state estimation accuracy. Within this setting, we once more investigate closed loop behavior and yield promising results. In conclusion, we show that the proposed observer provides a helpful tool to guarantee high estimation accuracy for models with severe inaccuracies or for situations with occurring deviations during operation, for example, due to mechanical wear or temperature changes.</jats:p>","lang":"eng"}],"status":"public","type":"journal_article","publication":"PAMM","language":[{"iso":"eng"}],"project":[{"_id":"690","name":"DART: Datengetriebene Methoden in der Regelungstechnik"}],"_id":"59051","user_id":"15402","department":[{"_id":"153"},{"_id":"880"}],"year":"2024","citation":{"short":"R.-S. Götte, J. Timmermann, PAMM 25 (2024).","mla":"Götte, Ricarda-Samantha, and Julia Timmermann. “Online Learning With Joint State and Model Estimation.” <i>PAMM</i>, vol. 25, no. 1, Wiley, 2024, doi:<a href=\"https://doi.org/10.1002/pamm.202400080\">10.1002/pamm.202400080</a>.","bibtex":"@article{Götte_Timmermann_2024, title={Online Learning With Joint State and Model Estimation}, volume={25}, DOI={<a href=\"https://doi.org/10.1002/pamm.202400080\">10.1002/pamm.202400080</a>}, number={1}, journal={PAMM}, publisher={Wiley}, author={Götte, Ricarda-Samantha and Timmermann, Julia}, year={2024} }","apa":"Götte, R.-S., &#38; Timmermann, J. (2024). Online Learning With Joint State and Model Estimation. <i>PAMM</i>, <i>25</i>(1). <a href=\"https://doi.org/10.1002/pamm.202400080\">https://doi.org/10.1002/pamm.202400080</a>","ama":"Götte R-S, Timmermann J. Online Learning With Joint State and Model Estimation. <i>PAMM</i>. 2024;25(1). doi:<a href=\"https://doi.org/10.1002/pamm.202400080\">10.1002/pamm.202400080</a>","chicago":"Götte, Ricarda-Samantha, and Julia Timmermann. “Online Learning With Joint State and Model Estimation.” <i>PAMM</i> 25, no. 1 (2024). <a href=\"https://doi.org/10.1002/pamm.202400080\">https://doi.org/10.1002/pamm.202400080</a>.","ieee":"R.-S. Götte and J. Timmermann, “Online Learning With Joint State and Model Estimation,” <i>PAMM</i>, vol. 25, no. 1, 2024, doi: <a href=\"https://doi.org/10.1002/pamm.202400080\">10.1002/pamm.202400080</a>."},"intvolume":"        25","publication_status":"published","publication_identifier":{"issn":["1617-7061","1617-7061"]},"issue":"1","title":"Online Learning With Joint State and Model Estimation","doi":"10.1002/pamm.202400080","date_updated":"2025-09-03T10:36:10Z","publisher":"Wiley","date_created":"2025-03-17T07:06:12Z","author":[{"first_name":"Ricarda-Samantha","last_name":"Götte","full_name":"Götte, Ricarda-Samantha","id":"43992"},{"last_name":"Timmermann","id":"15402","full_name":"Timmermann, Julia","first_name":"Julia"}],"volume":25},{"publisher":"Universität Paderborn","date_updated":"2025-09-03T09:25:14Z","author":[{"first_name":"Volker","id":"391","full_name":"Peckhaus, Volker","last_name":"Peckhaus"}],"date_created":"2025-09-03T09:13:52Z","title":"Fotografie: „Aristoteles am Apothekenerker des Rathauses in Lemgo“, in: Volker Peckhaus und Sebastian Luft: Philosophische Übergänge. Die Abschiedsvorlesung von Volker Peckhaus und die Antrittsvorlesung von Sebastian Luft im Oktober 2023, hg. v. Vanessa Albus, Universität Paderborn: Paderborn (PUR #163), 39","year":"2024","place":"Paderborn","citation":{"mla":"Peckhaus, Volker. <i>Fotografie: „Aristoteles am Apothekenerker des Rathauses in Lemgo“, in: Volker Peckhaus und Sebastian Luft: Philosophische Übergänge. Die Abschiedsvorlesung von Volker Peckhaus und die Antrittsvorlesung von Sebastian Luft im Oktober 2023, hg. v. Vanessa Albus, Universität Paderborn: Paderborn (PUR #163), 39</i>. Universität Paderborn, 2024.","short":"V. Peckhaus, Fotografie: „Aristoteles am Apothekenerker des Rathauses in Lemgo“, in: Volker Peckhaus und Sebastian Luft: Philosophische Übergänge. Die Abschiedsvorlesung von Volker Peckhaus und die Antrittsvorlesung von Sebastian Luft im Oktober 2023, hg. v. Vanessa Albus, Universität Paderborn: Paderborn (PUR #163), 39, Universität Paderborn, Paderborn, 2024.","bibtex":"@book{Peckhaus_2024, place={Paderborn}, title={Fotografie: „Aristoteles am Apothekenerker des Rathauses in Lemgo“, in: Volker Peckhaus und Sebastian Luft: Philosophische Übergänge. Die Abschiedsvorlesung von Volker Peckhaus und die Antrittsvorlesung von Sebastian Luft im Oktober 2023, hg. v. Vanessa Albus, Universität Paderborn: Paderborn (PUR #163), 39}, publisher={Universität Paderborn}, author={Peckhaus, Volker}, year={2024} }","apa":"Peckhaus, V. (2024). <i>Fotografie: „Aristoteles am Apothekenerker des Rathauses in Lemgo“, in: Volker Peckhaus und Sebastian Luft: Philosophische Übergänge. Die Abschiedsvorlesung von Volker Peckhaus und die Antrittsvorlesung von Sebastian Luft im Oktober 2023, hg. v. Vanessa Albus, Universität Paderborn: Paderborn (PUR #163), 39</i>. Universität Paderborn.","chicago":"Peckhaus, Volker. <i>Fotografie: „Aristoteles am Apothekenerker des Rathauses in Lemgo“, in: Volker Peckhaus und Sebastian Luft: Philosophische Übergänge. Die Abschiedsvorlesung von Volker Peckhaus und die Antrittsvorlesung von Sebastian Luft im Oktober 2023, hg. v. Vanessa Albus, Universität Paderborn: Paderborn (PUR #163), 39</i>. Paderborn: Universität Paderborn, 2024.","ieee":"V. Peckhaus, <i>Fotografie: „Aristoteles am Apothekenerker des Rathauses in Lemgo“, in: Volker Peckhaus und Sebastian Luft: Philosophische Übergänge. Die Abschiedsvorlesung von Volker Peckhaus und die Antrittsvorlesung von Sebastian Luft im Oktober 2023, hg. v. Vanessa Albus, Universität Paderborn: Paderborn (PUR #163), 39</i>. Paderborn: Universität Paderborn, 2024.","ama":"Peckhaus V. <i>Fotografie: „Aristoteles am Apothekenerker des Rathauses in Lemgo“, in: Volker Peckhaus und Sebastian Luft: Philosophische Übergänge. Die Abschiedsvorlesung von Volker Peckhaus und die Antrittsvorlesung von Sebastian Luft im Oktober 2023, hg. v. Vanessa Albus, Universität Paderborn: Paderborn (PUR #163), 39</i>. Universität Paderborn; 2024."},"_id":"61115","department":[{"_id":"520"}],"user_id":"391","language":[{"iso":"ger"}],"type":"misc","status":"public"},{"citation":{"apa":"Knorr, L., Schlosser, F., Horstmann, N., Divkovic, D., &#38; Meschede, H. (2024). Flexible operation and integration of high-temperature heat pumps using large temperature glides. <i>Applied Energy</i>, <i>368</i>, Article 123417. <a href=\"https://doi.org/10.1016/j.apenergy.2024.123417\">https://doi.org/10.1016/j.apenergy.2024.123417</a>","bibtex":"@article{Knorr_Schlosser_Horstmann_Divkovic_Meschede_2024, title={Flexible operation and integration of high-temperature heat pumps using large temperature glides}, volume={368}, DOI={<a href=\"https://doi.org/10.1016/j.apenergy.2024.123417\">10.1016/j.apenergy.2024.123417</a>}, number={123417}, journal={Applied Energy}, publisher={Elsevier BV}, author={Knorr, Lukas and Schlosser, Florian and Horstmann, Nils and Divkovic, Denis and Meschede, Henning}, year={2024} }","mla":"Knorr, Lukas, et al. “Flexible Operation and Integration of High-Temperature Heat Pumps Using Large Temperature Glides.” <i>Applied Energy</i>, vol. 368, 123417, Elsevier BV, 2024, doi:<a href=\"https://doi.org/10.1016/j.apenergy.2024.123417\">10.1016/j.apenergy.2024.123417</a>.","short":"L. Knorr, F. Schlosser, N. Horstmann, D. Divkovic, H. Meschede, Applied Energy 368 (2024).","ama":"Knorr L, Schlosser F, Horstmann N, Divkovic D, Meschede H. Flexible operation and integration of high-temperature heat pumps using large temperature glides. <i>Applied Energy</i>. 2024;368. doi:<a href=\"https://doi.org/10.1016/j.apenergy.2024.123417\">10.1016/j.apenergy.2024.123417</a>","ieee":"L. Knorr, F. Schlosser, N. Horstmann, D. Divkovic, and H. Meschede, “Flexible operation and integration of high-temperature heat pumps using large temperature glides,” <i>Applied Energy</i>, vol. 368, Art. no. 123417, 2024, doi: <a href=\"https://doi.org/10.1016/j.apenergy.2024.123417\">10.1016/j.apenergy.2024.123417</a>.","chicago":"Knorr, Lukas, Florian Schlosser, Nils Horstmann, Denis Divkovic, and Henning Meschede. “Flexible Operation and Integration of High-Temperature Heat Pumps Using Large Temperature Glides.” <i>Applied Energy</i> 368 (2024). <a href=\"https://doi.org/10.1016/j.apenergy.2024.123417\">https://doi.org/10.1016/j.apenergy.2024.123417</a>."},"intvolume":"       368","year":"2024","publication_status":"published","publication_identifier":{"issn":["0306-2619"]},"doi":"10.1016/j.apenergy.2024.123417","title":"Flexible operation and integration of high-temperature heat pumps using large temperature glides","author":[{"first_name":"Lukas","last_name":"Knorr","full_name":"Knorr, Lukas","id":"90391"},{"last_name":"Schlosser","id":"88614","full_name":"Schlosser, Florian","first_name":"Florian"},{"full_name":"Horstmann, Nils","last_name":"Horstmann","first_name":"Nils"},{"last_name":"Divkovic","full_name":"Divkovic, Denis","id":"89059","first_name":"Denis"},{"first_name":"Henning","full_name":"Meschede, Henning","id":"86954","last_name":"Meschede","orcid":"0000-0002-1538-089X"}],"date_created":"2024-05-27T10:29:14Z","volume":368,"publisher":"Elsevier BV","date_updated":"2025-09-03T12:21:47Z","status":"public","type":"journal_article","publication":"Applied Energy","language":[{"iso":"eng"}],"article_number":"123417","user_id":"90391","department":[{"_id":"644"}],"_id":"54459"},{"user_id":"391","department":[{"_id":"520"}],"_id":"61114","language":[{"iso":"ger"}],"type":"misc","status":"public","date_created":"2025-09-03T09:11:46Z","author":[{"last_name":"Peckhaus","id":"391","full_name":"Peckhaus, Volker","first_name":"Volker"}],"date_updated":"2025-09-03T12:23:39Z","publisher":"Universität Paderborn","title":"Fotografie: „Ratio an der Lateinschule in Alfeld“, in: Volker Peckhaus und Sebastian Luft: Philosophische Übergänge. Die Abschiedsvorlesung von Volker Peckhaus und die Antrittsvorlesung von Sebastian Luft im Oktober 2023, hg. v. Vanessa Albus, Universität Paderborn: Paderborn (PUR #163), 34–35","citation":{"ama":"Peckhaus V. <i>Fotografie: „Ratio an der Lateinschule in Alfeld“, in: Volker Peckhaus und Sebastian Luft: Philosophische Übergänge. Die Abschiedsvorlesung von Volker Peckhaus und die Antrittsvorlesung von Sebastian Luft im Oktober 2023, hg. v. Vanessa Albus, Universität Paderborn: Paderborn (PUR #163), 34–35</i>. Universität Paderborn; 2024.","ieee":"V. Peckhaus, <i>Fotografie: „Ratio an der Lateinschule in Alfeld“, in: Volker Peckhaus und Sebastian Luft: Philosophische Übergänge. Die Abschiedsvorlesung von Volker Peckhaus und die Antrittsvorlesung von Sebastian Luft im Oktober 2023, hg. v. Vanessa Albus, Universität Paderborn: Paderborn (PUR #163), 34–35</i>. Paderborn: Universität Paderborn, 2024.","chicago":"Peckhaus, Volker. <i>Fotografie: „Ratio an der Lateinschule in Alfeld“, in: Volker Peckhaus und Sebastian Luft: Philosophische Übergänge. Die Abschiedsvorlesung von Volker Peckhaus und die Antrittsvorlesung von Sebastian Luft im Oktober 2023, hg. v. Vanessa Albus, Universität Paderborn: Paderborn (PUR #163), 34–35</i>. Paderborn: Universität Paderborn, 2024.","mla":"Peckhaus, Volker. <i>Fotografie: „Ratio an der Lateinschule in Alfeld“, in: Volker Peckhaus und Sebastian Luft: Philosophische Übergänge. Die Abschiedsvorlesung von Volker Peckhaus und die Antrittsvorlesung von Sebastian Luft im Oktober 2023, hg. v. Vanessa Albus, Universität Paderborn: Paderborn (PUR #163), 34–35</i>. Universität Paderborn, 2024.","short":"V. Peckhaus, Fotografie: „Ratio an der Lateinschule in Alfeld“, in: Volker Peckhaus und Sebastian Luft: Philosophische Übergänge. Die Abschiedsvorlesung von Volker Peckhaus und die Antrittsvorlesung von Sebastian Luft im Oktober 2023, hg. v. Vanessa Albus, Universität Paderborn: Paderborn (PUR #163), 34–35, Universität Paderborn, Paderborn, 2024.","bibtex":"@book{Peckhaus_2024, place={Paderborn}, title={Fotografie: „Ratio an der Lateinschule in Alfeld“, in: Volker Peckhaus und Sebastian Luft: Philosophische Übergänge. Die Abschiedsvorlesung von Volker Peckhaus und die Antrittsvorlesung von Sebastian Luft im Oktober 2023, hg. v. Vanessa Albus, Universität Paderborn: Paderborn (PUR #163), 34–35}, publisher={Universität Paderborn}, author={Peckhaus, Volker}, year={2024} }","apa":"Peckhaus, V. (2024). <i>Fotografie: „Ratio an der Lateinschule in Alfeld“, in: Volker Peckhaus und Sebastian Luft: Philosophische Übergänge. Die Abschiedsvorlesung von Volker Peckhaus und die Antrittsvorlesung von Sebastian Luft im Oktober 2023, hg. v. Vanessa Albus, Universität Paderborn: Paderborn (PUR #163), 34–35</i>. Universität Paderborn."},"year":"2024","place":"Paderborn"},{"language":[{"iso":"ger"}],"department":[{"_id":"520"}],"user_id":"391","_id":"17752","status":"public","publication":"Neue Deutsche Biographie, Bd. 28: Wettstein - Zwoch","type":"encyclopedia_article","title":"Zermelo ","date_created":"2020-08-10T07:47:59Z","author":[{"id":"391","full_name":"Peckhaus, Volker","last_name":"Peckhaus","first_name":"Volker"}],"publisher":"Duncker & Humblot","date_updated":"2025-09-03T12:32:32Z","page":"659-660","corporate_editor":["Historische Kommission bei der Bayerischen Akademie der Wissenschaften"],"citation":{"ieee":"V. Peckhaus, “Zermelo ,” in <i>Neue Deutsche Biographie, Bd. 28: Wettstein - Zwoch</i>, Historische Kommission bei der Bayerischen Akademie der Wissenschaften, Ed. Berlin: Duncker &#38; Humblot, pp. 659–660.","chicago":"Peckhaus, Volker. “Zermelo .” In <i>Neue Deutsche Biographie, Bd. 28: Wettstein - Zwoch</i>, edited by Historische Kommission bei der Bayerischen Akademie der Wissenschaften, 659–60. Berlin: Duncker &#38; Humblot, n.d.","ama":"Peckhaus V. Zermelo . In: Historische Kommission bei der Bayerischen Akademie der Wissenschaften, ed. <i>Neue Deutsche Biographie, Bd. 28: Wettstein - Zwoch</i>. Duncker &#38; Humblot; :659-660.","mla":"Peckhaus, Volker. “Zermelo .” <i>Neue Deutsche Biographie, Bd. 28: Wettstein - Zwoch</i>, edited by Historische Kommission bei der Bayerischen Akademie der Wissenschaften, Duncker &#38; Humblot, pp. 659–60.","bibtex":"@inbook{Peckhaus, place={Berlin}, title={Zermelo }, booktitle={Neue Deutsche Biographie, Bd. 28: Wettstein - Zwoch}, publisher={Duncker &#38; Humblot}, author={Peckhaus, Volker}, editor={Historische Kommission bei der Bayerischen Akademie der Wissenschaften}, pages={659–660} }","short":"V. Peckhaus, in: Historische Kommission bei der Bayerischen Akademie der Wissenschaften (Ed.), Neue Deutsche Biographie, Bd. 28: Wettstein - Zwoch, Duncker &#38; Humblot, Berlin, n.d., pp. 659–660.","apa":"Peckhaus, V. (n.d.). Zermelo . In Historische Kommission bei der Bayerischen Akademie der Wissenschaften (Ed.), <i>Neue Deutsche Biographie, Bd. 28: Wettstein - Zwoch</i> (pp. 659–660). Duncker &#38; Humblot."},"year":"2024","place":"Berlin","publication_status":"inpress"},{"language":[{"iso":"eng"}],"_id":"58263","department":[{"_id":"520"}],"user_id":"391","status":"public","publication":"zbMATH Open, Zbl. 07782971","type":"review","title":"Schmidt, Gunther, Mathematik als Wissenschaft in der Gesellschaft. Historische Äußerungen und aktuelle Anregungen, Springer Spektrum: Berlin 2023, xiii, 263 S. ","main_file_link":[{"url":"https://zbmath.org/7782971"}],"date_updated":"2025-09-03T13:58:11Z","date_created":"2025-01-18T15:24:08Z","author":[{"first_name":"Volker","id":"391","full_name":"Peckhaus, Volker","last_name":"Peckhaus"}],"year":"2024","citation":{"short":"V. Peckhaus, ZbMATH Open, Zbl. 07782971 (2024).","bibtex":"@article{Peckhaus_2024, title={Schmidt, Gunther, Mathematik als Wissenschaft in der Gesellschaft. Historische Äußerungen und aktuelle Anregungen, Springer Spektrum: Berlin 2023, xiii, 263 S. }, journal={zbMATH Open, Zbl. 07782971}, author={Peckhaus, Volker}, year={2024} }","mla":"Peckhaus, Volker. “Schmidt, Gunther, Mathematik Als Wissenschaft in Der Gesellschaft. Historische Äußerungen Und Aktuelle Anregungen, Springer Spektrum: Berlin 2023, Xiii, 263 S. .” <i>ZbMATH Open, Zbl. 07782971</i>, 2024.","apa":"Peckhaus, V. (2024). Schmidt, Gunther, Mathematik als Wissenschaft in der Gesellschaft. Historische Äußerungen und aktuelle Anregungen, Springer Spektrum: Berlin 2023, xiii, 263 S. . In <i>zbMATH Open, Zbl. 07782971</i>.","ama":"Peckhaus V. Schmidt, Gunther, Mathematik als Wissenschaft in der Gesellschaft. Historische Äußerungen und aktuelle Anregungen, Springer Spektrum: Berlin 2023, xiii, 263 S. . <i>zbMATH Open, Zbl 07782971</i>. Published online 2024.","chicago":"Peckhaus, Volker. “Schmidt, Gunther, Mathematik Als Wissenschaft in Der Gesellschaft. Historische Äußerungen Und Aktuelle Anregungen, Springer Spektrum: Berlin 2023, Xiii, 263 S. .” <i>ZbMATH Open, Zbl. 07782971</i>, 2024.","ieee":"V. Peckhaus, “Schmidt, Gunther, Mathematik als Wissenschaft in der Gesellschaft. Historische Äußerungen und aktuelle Anregungen, Springer Spektrum: Berlin 2023, xiii, 263 S. ,” <i>zbMATH Open, Zbl. 07782971</i>. 2024."}},{"place":"Guildford, Surrey, England","year":"2024","citation":{"ama":"Berndt A, Vollmer F, Münzmay A. Multi-Modal Data Networks in Music: Thoughts on a Digital Performance Edition and its Potential for Ethnomusicology. In: <i>{Diskografentag: International Conference on Recorded Music}</i>. ; 2024.","ieee":"A. Berndt, F. Vollmer, and A. Münzmay, “Multi-Modal Data Networks in Music: Thoughts on a Digital Performance Edition and its Potential for Ethnomusicology,” 2024.","chicago":"Berndt, Axel, F. Vollmer, and Andreas Münzmay. “Multi-Modal Data Networks in Music: Thoughts on a Digital Performance Edition and Its Potential for Ethnomusicology.” In <i>{Diskografentag: International Conference on Recorded Music}</i>. 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In: Herzig B, Eickelmann B, Schwabl F, Schulze J, Niemann J, eds. <i>Lehrkräftebildung in der digitalen Welt. Zukunftsorientierte Forschungs- und Praxisperspektiven </i>. Vol 1. 1st ed. Paderborner Beiträge zur Bildungsforschung und Lehrkräftebildung. Waxmann; 2024:75-83. doi:<a href=\"https://doi.org/10.31244/9783830998372\">10.31244/9783830998372</a>","ieee":"J. Schulze, B. Herzig, and R. Lehberger, “Agile Gestaltung digitalisierungsbezogener Schulentwicklung in der Lehrkräftebildung ,” in <i>Lehrkräftebildung in der digitalen Welt. Zukunftsorientierte Forschungs- und Praxisperspektiven </i>, 1st ed., vol. 1, B. Herzig, B. Eickelmann, F. Schwabl, J. Schulze, and J. Niemann, Eds. Münster: Waxmann, 2024, pp. 75–83.","chicago":"Schulze, Johanna, Bardo Herzig, and Regine Lehberger. “Agile Gestaltung digitalisierungsbezogener Schulentwicklung in der Lehrkräftebildung .” In <i>Lehrkräftebildung in der digitalen Welt. Zukunftsorientierte Forschungs- und Praxisperspektiven </i>, edited by Bardo Herzig, Birgit Eickelmann, Franziska Schwabl, Johanna Schulze, and Jan Niemann, 1st ed., 1:75–83. Paderborner Beiträge zur Bildungsforschung und Lehrkräftebildung. Münster: Waxmann, 2024. <a href=\"https://doi.org/10.31244/9783830998372\">https://doi.org/10.31244/9783830998372</a>."},"date_updated":"2025-09-11T09:10:48Z","volume":1,"author":[{"first_name":"Johanna","last_name":"Schulze","orcid":"0000-0001-6104-8583","id":"34412","full_name":"Schulze, Johanna"},{"last_name":"Herzig","id":"217","full_name":"Herzig, Bardo","first_name":"Bardo"},{"first_name":"Regine","id":"98966","full_name":"Lehberger, Regine","orcid":"0009-0007-0289-0288","last_name":"Lehberger"}],"doi":"10.31244/9783830998372"},{"file":[{"success":1,"relation":"main_file","content_type":"application/pdf","file_size":190661,"access_level":"closed","file_name":"favel.pdf","file_id":"57241","date_updated":"2024-11-19T14:14:14Z","creator":"uqudus","date_created":"2024-11-19T14:14:14Z"}],"abstract":[{"lang":"eng","text":"Validating assertions before adding them to a knowledge graph is an essential part of its creation and maintenance. Due to the sheer size of knowledge graphs, automatic fact-checking approaches have been developed. These approaches rely on reference knowledge to decide whether a given assertion is correct. Recent hybrid approaches achieve good results by including several knowledge sources. However, it is often impractical to provide a sheer quantity of textual knowledge or generate embedding models to leverage these hybrid approaches. We present FaVEL, an approach that uses algorithm selection and ensemble learning to amalgamate several existing fact-checking approaches that rely solely on a reference knowledge graph and, hence, use fewer resources than current hybrid approaches. For our evaluation, we create updated versions of two existing datasets and a new dataset dubbed FaVEL-DS. Our evaluation compares our approach to 15 fact-checking approaches—including the state-of-the-art approach HybridFC—on 3 datasets. Our results demonstrate that FaVEL outperforms all other approaches significantly by at least 0.04 in terms of the area under the ROC curve. Our source code, datasets, and evaluation results are open-source and can be found at https://github.com/dice-group/favel."}],"publication":"EKAW 2024","language":[{"iso":"eng"}],"ddc":["600"],"keyword":["fact checking","ensemble learning","transfer learning","knowledge management."],"corporate_editor":["Mehwish Alam"],"year":"2024","quality_controlled":"1","title":"FaVEL: Fact Validation Ensemble Learning","date_created":"2024-11-19T14:12:49Z","status":"public","editor":[{"full_name":"Rospocher, Marco","last_name":"Rospocher","first_name":"Marco"}],"type":"conference","popular_science":"1","file_date_updated":"2024-11-19T14:14:14Z","user_id":"83392","department":[{"_id":"34"}],"project":[{"_id":"412","name":"NEBULA: Nutzerzentrierte KI-basierte Erkennung von Fake-News und Fehlinformationen"},{"_id":"285","name":"SAIL: SAIL - Nachhaltiger Lebenszyklus von intelligenten soziotechnischen Systemen"},{"name":"KnowGraphs: KnowGraphs: Knowledge Graphs at Scale","_id":"410"}],"_id":"57240","citation":{"ama":"Qudus U, Röder M, Tatkeu Pekarou FL, Morim da Silva AA, Ngonga Ngomo A-C. FaVEL: Fact Validation Ensemble Learning. In: Rospocher M, Mehwish Alam, eds. <i>EKAW 2024</i>. ; 2024.","ieee":"U. Qudus, M. Röder, F. L. Tatkeu Pekarou, A. A. Morim da Silva, and A.-C. Ngonga Ngomo, “FaVEL: Fact Validation Ensemble Learning,” in <i>EKAW 2024</i>, Amsterdam, Netherlands, 2024.","chicago":"Qudus, Umair, Michael Röder, Franck Lionel Tatkeu Pekarou, Ana Alexandra Morim da Silva, and Axel-Cyrille Ngonga Ngomo. “FaVEL: Fact Validation Ensemble Learning.” In <i>EKAW 2024</i>, edited by Marco Rospocher and Mehwish Alam, 2024.","short":"U. Qudus, M. Röder, F.L. Tatkeu Pekarou, A.A. Morim da Silva, A.-C. Ngonga Ngomo, in: M. Rospocher, Mehwish Alam (Eds.), EKAW 2024, 2024.","mla":"Qudus, Umair, et al. “FaVEL: Fact Validation Ensemble Learning.” <i>EKAW 2024</i>, edited by Marco Rospocher and Mehwish Alam, 2024.","bibtex":"@inproceedings{Qudus_Röder_Tatkeu Pekarou_Morim da Silva_Ngonga Ngomo_2024, title={FaVEL: Fact Validation Ensemble Learning}, booktitle={EKAW 2024}, author={Qudus, Umair and Röder, Michael and Tatkeu Pekarou, Franck Lionel and Morim da Silva, Ana Alexandra and Ngonga Ngomo, Axel-Cyrille}, editor={Rospocher, Marco and Mehwish Alam}, year={2024} }","apa":"Qudus, U., Röder, M., Tatkeu Pekarou, F. L., Morim da Silva, A. A., &#38; Ngonga Ngomo, A.-C. (2024). FaVEL: Fact Validation Ensemble Learning. In M. Rospocher &#38; Mehwish Alam (Eds.), <i>EKAW 2024</i>."},"has_accepted_license":"1","conference":{"name":"24th International Conference on Knowledge Engineering and Knowledge Management","start_date":"2024-11-26","end_date":"2024-11-28","location":"Amsterdam, Netherlands"},"author":[{"first_name":"Umair","orcid":"0000-0001-6714-8729","last_name":"Qudus","full_name":"Qudus, Umair","id":"83392"},{"full_name":"Röder, Michael","id":"67199","orcid":"https://orcid.org/0000-0002-8609-8277","last_name":"Röder","first_name":"Michael"},{"first_name":"Franck Lionel","full_name":"Tatkeu Pekarou, Franck Lionel","last_name":"Tatkeu Pekarou"},{"last_name":"Morim da Silva","id":"72108","full_name":"Morim da Silva, Ana Alexandra","first_name":"Ana Alexandra"},{"first_name":"Axel-Cyrille","id":"65716","full_name":"Ngonga Ngomo, Axel-Cyrille","last_name":"Ngonga Ngomo"}],"date_updated":"2025-09-11T09:48:12Z"},{"type":"journal_article","publication":"Plan BD. Online-Magazin für Schule in der Kultur der Digitalität","status":"public","_id":"61197","user_id":"66956","department":[{"_id":"459"}],"language":[{"iso":"ger"}],"publication_status":"published","publication_identifier":{"unknown":["https://magazin.forumbd.de/lehren-und-lernen/ki-bezogene-kompetenzen-von-lehrkraeften/"]},"year":"2024","citation":{"mla":"Herzig, Bardo. “KI-bezogene Kompetenzen von Lehrkräften .” <i>Plan BD. Online-Magazin für Schule in der Kultur der Digitalität</i>, https://magazin.forumbd.de/lehren-und-lernen/ki-bezogene-kompetenzen-von-lehrkraeften/, 2024.","short":"B. Herzig, Plan BD. Online-Magazin für Schule in der Kultur der Digitalität (2024).","bibtex":"@article{Herzig_2024, title={KI-bezogene Kompetenzen von Lehrkräften }, journal={Plan BD. Online-Magazin für Schule in der Kultur der Digitalität}, publisher={https://magazin.forumbd.de/lehren-und-lernen/ki-bezogene-kompetenzen-von-lehrkraeften/}, author={Herzig, Bardo}, year={2024} }","apa":"Herzig, B. (2024). KI-bezogene Kompetenzen von Lehrkräften . <i>Plan BD. Online-Magazin für Schule in der Kultur der Digitalität</i>.","chicago":"Herzig, Bardo. “KI-bezogene Kompetenzen von Lehrkräften .” <i>Plan BD. Online-Magazin für Schule in der Kultur der Digitalität</i>, 2024.","ieee":"B. Herzig, “KI-bezogene Kompetenzen von Lehrkräften ,” <i>Plan BD. Online-Magazin für Schule in der Kultur der Digitalität</i>, 2024.","ama":"Herzig B. KI-bezogene Kompetenzen von Lehrkräften . <i>Plan BD Online-Magazin für Schule in der Kultur der Digitalität</i>. Published online 2024."},"date_updated":"2025-09-11T09:47:27Z","publisher":"https://magazin.forumbd.de/lehren-und-lernen/ki-bezogene-kompetenzen-von-lehrkraeften/","date_created":"2025-09-11T09:40:42Z","author":[{"first_name":"Bardo","last_name":"Herzig","id":"217","full_name":"Herzig, Bardo"}],"title":"KI-bezogene Kompetenzen von Lehrkräften "},{"type":"conference","abstract":[{"lang":"eng","text":"The connection between inconsistent databases and Dung's abstract\r\nargumentation framework has recently drawn growing interest. Specifically, an\r\ninconsistent database, involving certain types of integrity constraints such as\r\nfunctional and inclusion dependencies, can be viewed as an argumentation\r\nframework in Dung's setting. Nevertheless, no prior work has explored the exact\r\nexpressive power of Dung's theory of argumentation when compared to\r\ninconsistent databases and integrity constraints. In this paper, we close this\r\ngap by arguing that an argumentation framework can also be viewed as an\r\ninconsistent database. We first establish a connection between subset-repairs\r\nfor databases and extensions for AFs, considering conflict-free, naive,\r\nadmissible, and preferred semantics. Further, we define a new family of\r\nattribute-based repairs based on the principle of maximal content preservation.\r\nThe effectiveness of these repairs is then highlighted by connecting them to\r\nstable, semi-stable, and stage semantics. Our main contributions include\r\ntranslating an argumentation framework into a database together with integrity\r\nconstraints. Moreover, this translation can be achieved in polynomial time,\r\nwhich is essential in transferring complexity results between the two\r\nformalisms."}],"status":"public","project":[{"name":"TRR 318; TP B01: Ein dialogbasierter Ansatz zur Erklärung von Modellen des maschinellen Lernens","_id":"121"}],"external_id":{"arxiv":["2412.11617"]},"_id":"58377","user_id":"99353","department":[{"_id":"574"}],"language":[{"iso":"eng"}],"year":"2024","citation":{"ama":"Mahmood Y, Hecher M, Ngonga Ngomo A-C. Dung’s Argumentation Framework: Unveiling the Expressive Power with  Inconsistent Databases. In: ; 2024. doi:<a href=\"https://doi.org/10.1609/AAAI.V39I14.33651\">10.1609/AAAI.V39I14.33651</a>","chicago":"Mahmood, Yasir, Markus Hecher, and Axel-Cyrille Ngonga Ngomo. “Dung’s Argumentation Framework: Unveiling the Expressive Power with  Inconsistent Databases,” 2024. <a href=\"https://doi.org/10.1609/AAAI.V39I14.33651\">https://doi.org/10.1609/AAAI.V39I14.33651</a>.","ieee":"Y. Mahmood, M. Hecher, and A.-C. Ngonga Ngomo, “Dung’s Argumentation Framework: Unveiling the Expressive Power with  Inconsistent Databases,” 2024, doi: <a href=\"https://doi.org/10.1609/AAAI.V39I14.33651\">10.1609/AAAI.V39I14.33651</a>.","apa":"Mahmood, Y., Hecher, M., &#38; Ngonga Ngomo, A.-C. (2024). <i>Dung’s Argumentation Framework: Unveiling the Expressive Power with  Inconsistent Databases</i>. <a href=\"https://doi.org/10.1609/AAAI.V39I14.33651\">https://doi.org/10.1609/AAAI.V39I14.33651</a>","short":"Y. Mahmood, M. Hecher, A.-C. Ngonga Ngomo, in: 2024.","mla":"Mahmood, Yasir, et al. <i>Dung’s Argumentation Framework: Unveiling the Expressive Power with  Inconsistent Databases</i>. 2024, doi:<a href=\"https://doi.org/10.1609/AAAI.V39I14.33651\">10.1609/AAAI.V39I14.33651</a>.","bibtex":"@inproceedings{Mahmood_Hecher_Ngonga Ngomo_2024, title={Dung’s Argumentation Framework: Unveiling the Expressive Power with  Inconsistent Databases}, DOI={<a href=\"https://doi.org/10.1609/AAAI.V39I14.33651\">10.1609/AAAI.V39I14.33651</a>}, author={Mahmood, Yasir and Hecher, Markus and Ngonga Ngomo, Axel-Cyrille}, year={2024} }"},"date_updated":"2025-09-11T10:01:11Z","date_created":"2025-01-27T15:30:41Z","author":[{"first_name":"Yasir","last_name":"Mahmood","id":"99353","full_name":"Mahmood, Yasir"},{"full_name":"Hecher, Markus","last_name":"Hecher","first_name":"Markus"},{"first_name":"Axel-Cyrille","id":"65716","full_name":"Ngonga Ngomo, Axel-Cyrille","last_name":"Ngonga Ngomo"}],"title":"Dung's Argumentation Framework: Unveiling the Expressive Power with  Inconsistent Databases","doi":"10.1609/AAAI.V39I14.33651"},{"title":"The illusion of competence: Evaluating the effect of explanations on users’ mental models of visual question answering systems","date_created":"2025-09-11T07:22:05Z","publisher":"ACL","year":"2024","quality_controlled":"1","language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"We examine how users perceive the limitations of an AI system when it encounters a task that it cannot perform perfectly and whether providing explanations alongside its answers aids users in constructing an appropriate mental model of the system's capabilities and limitations. We employ a visual question answer and explanation task where we control the AI system's limitations by manipulating the visual inputs: during inference, the system either processes full-color or grayscale images. Our goal is to determine whether participants can perceive the limitations of the system. We hypothesize that explanations will make limited AI capabilities more transparent to users. However, our results show that explanations do not have this effect. Instead of allowing users to more accurately assess the limitations of the AI system, explanations generally increase users' perceptions of the system's competence – regardless of its actual performance."}],"publication":"Proceedings of the 2024 Conference on Empirical Methods in Natural Language Processing","doi":"10.18653/v1/2024.emnlp-main.1084","conference":{"end_date":"2024-11-16","location":"Miami, FL, USA","name":"2024 Conference on Empirical Methods in Natural Language Processing (EMNLP)","start_date":"2024-11-12"},"main_file_link":[{"url":"https://doi.org/10.18653/v1/2024.emnlp-main.1084","open_access":"1"}],"author":[{"full_name":"Sieker, Judith","last_name":"Sieker","first_name":"Judith"},{"first_name":"Simeon","last_name":"Junker","full_name":"Junker, Simeon"},{"last_name":"Utescher","full_name":"Utescher, Ronja","first_name":"Ronja"},{"full_name":"Attari, Nazia","last_name":"Attari","first_name":"Nazia"},{"first_name":"Heiko","last_name":"Wersing","full_name":"Wersing, Heiko"},{"first_name":"Hendrik","id":"76456","full_name":"Buschmeier, Hendrik","last_name":"Buschmeier","orcid":"0000-0002-9613-5713"},{"full_name":"Zarrieß, Sina","last_name":"Zarrieß","first_name":"Sina"}],"oa":"1","date_updated":"2025-09-11T10:14:50Z","page":"19459–19475","citation":{"mla":"Sieker, Judith, et al. “The Illusion of Competence: Evaluating the Effect of Explanations on Users’ Mental Models of Visual Question Answering Systems.” <i>Proceedings of the 2024 Conference on Empirical Methods in Natural Language Processing</i>, ACL, 2024, pp. 19459–19475, doi:<a href=\"https://doi.org/10.18653/v1/2024.emnlp-main.1084\">10.18653/v1/2024.emnlp-main.1084</a>.","bibtex":"@inproceedings{Sieker_Junker_Utescher_Attari_Wersing_Buschmeier_Zarrieß_2024, place={Miami, FL, USA}, title={The illusion of competence: Evaluating the effect of explanations on users’ mental models of visual question answering systems}, DOI={<a href=\"https://doi.org/10.18653/v1/2024.emnlp-main.1084\">10.18653/v1/2024.emnlp-main.1084</a>}, booktitle={Proceedings of the 2024 Conference on Empirical Methods in Natural Language Processing}, publisher={ACL}, author={Sieker, Judith and Junker, Simeon and Utescher, Ronja and Attari, Nazia and Wersing, Heiko and Buschmeier, Hendrik and Zarrieß, Sina}, year={2024}, pages={19459–19475} }","short":"J. Sieker, S. Junker, R. Utescher, N. Attari, H. Wersing, H. Buschmeier, S. Zarrieß, in: Proceedings of the 2024 Conference on Empirical Methods in Natural Language Processing, ACL, Miami, FL, USA, 2024, pp. 19459–19475.","apa":"Sieker, J., Junker, S., Utescher, R., Attari, N., Wersing, H., Buschmeier, H., &#38; Zarrieß, S. (2024). The illusion of competence: Evaluating the effect of explanations on users’ mental models of visual question answering systems. <i>Proceedings of the 2024 Conference on Empirical Methods in Natural Language Processing</i>, 19459–19475. <a href=\"https://doi.org/10.18653/v1/2024.emnlp-main.1084\">https://doi.org/10.18653/v1/2024.emnlp-main.1084</a>","ama":"Sieker J, Junker S, Utescher R, et al. The illusion of competence: Evaluating the effect of explanations on users’ mental models of visual question answering systems. In: <i>Proceedings of the 2024 Conference on Empirical Methods in Natural Language Processing</i>. ACL; 2024:19459–19475. doi:<a href=\"https://doi.org/10.18653/v1/2024.emnlp-main.1084\">10.18653/v1/2024.emnlp-main.1084</a>","ieee":"J. Sieker <i>et al.</i>, “The illusion of competence: Evaluating the effect of explanations on users’ mental models of visual question answering systems,” in <i>Proceedings of the 2024 Conference on Empirical Methods in Natural Language Processing</i>, Miami, FL, USA, 2024, pp. 19459–19475, doi: <a href=\"https://doi.org/10.18653/v1/2024.emnlp-main.1084\">10.18653/v1/2024.emnlp-main.1084</a>.","chicago":"Sieker, Judith, Simeon Junker, Ronja Utescher, Nazia Attari, Heiko Wersing, Hendrik Buschmeier, and Sina Zarrieß. “The Illusion of Competence: Evaluating the Effect of Explanations on Users’ Mental Models of Visual Question Answering Systems.” In <i>Proceedings of the 2024 Conference on Empirical Methods in Natural Language Processing</i>, 19459–19475. Miami, FL, USA: ACL, 2024. <a href=\"https://doi.org/10.18653/v1/2024.emnlp-main.1084\">https://doi.org/10.18653/v1/2024.emnlp-main.1084</a>."},"place":"Miami, FL, USA","publication_status":"published","extern":"1","department":[{"_id":"660"}],"user_id":"76456","_id":"61179","project":[{"_id":"112","name":"TRR 318; TP A02: Verstehensprozess einer Erklärung beobachten und auswerten"}],"status":"public","type":"conference"},{"type":"book_chapter","publication":"Frontiers in Artificial Intelligence and Applications","abstract":[{"text":"<jats:p>Abstract argumentation is a popular toolkit for modeling, evaluating, and comparing arguments. Relationships between arguments are specified in argumentation frameworks (AFs), and conditions are placed on sets (extensions) of arguments that allow AFs to be evaluated. For more expressiveness, AFs are augmented with acceptance conditions on directly interacting arguments or a constraint on the admissible sets of arguments, resulting in dialectic frameworks or constrained argumentation frameworks. In this paper, we consider flexible conditions for rejecting an argument from an extension, which we call rejection conditions (RCs). On the technical level, we associate each argument with a specific logic program. We analyze the resulting complexity, including the structural parameter treewidth. Rejection AFs are highly expressive, giving rise to natural problems on higher levels of the polynomial hierarchy.</jats:p>","lang":"eng"}],"status":"public","project":[{"name":"TRR 318; TP B01: Ein dialogbasierter Ansatz zur Erklärung von Modellen des maschinellen Lernens","_id":"121"}],"_id":"57238","user_id":"99353","department":[{"_id":"574"}],"language":[{"iso":"eng"}],"publication_status":"published","publication_identifier":{"isbn":["9781643685489"],"issn":["0922-6389","1879-8314"]},"year":"2024","citation":{"chicago":"Fichte, Johannes K., Markus Hecher, Yasir Mahmood, and Arne Meier. “Rejection in Abstract Argumentation: Harder Than Acceptance?” In <i>Frontiers in Artificial Intelligence and Applications</i>. IOS Press, 2024. <a href=\"https://doi.org/10.3233/faia240867\">https://doi.org/10.3233/faia240867</a>.","ieee":"J. K. Fichte, M. Hecher, Y. Mahmood, and A. Meier, “Rejection in Abstract Argumentation: Harder Than Acceptance?,” in <i>Frontiers in Artificial Intelligence and Applications</i>, IOS Press, 2024.","ama":"Fichte JK, Hecher M, Mahmood Y, Meier A. Rejection in Abstract Argumentation: Harder Than Acceptance? In: <i>Frontiers in Artificial Intelligence and Applications</i>. IOS Press; 2024. doi:<a href=\"https://doi.org/10.3233/faia240867\">10.3233/faia240867</a>","short":"J.K. Fichte, M. Hecher, Y. Mahmood, A. Meier, in: Frontiers in Artificial Intelligence and Applications, IOS Press, 2024.","mla":"Fichte, Johannes K., et al. “Rejection in Abstract Argumentation: Harder Than Acceptance?” <i>Frontiers in Artificial Intelligence and Applications</i>, IOS Press, 2024, doi:<a href=\"https://doi.org/10.3233/faia240867\">10.3233/faia240867</a>.","bibtex":"@inbook{Fichte_Hecher_Mahmood_Meier_2024, title={Rejection in Abstract Argumentation: Harder Than Acceptance?}, DOI={<a href=\"https://doi.org/10.3233/faia240867\">10.3233/faia240867</a>}, booktitle={Frontiers in Artificial Intelligence and Applications}, publisher={IOS Press}, author={Fichte, Johannes K. and Hecher, Markus and Mahmood, Yasir and Meier, Arne}, year={2024} }","apa":"Fichte, J. K., Hecher, M., Mahmood, Y., &#38; Meier, A. (2024). Rejection in Abstract Argumentation: Harder Than Acceptance? In <i>Frontiers in Artificial Intelligence and Applications</i>. ECAI} 2024 - 27th European Conference on Artificial Intelligence, Santiago de Compostela, Spain. IOS Press. <a href=\"https://doi.org/10.3233/faia240867\">https://doi.org/10.3233/faia240867</a>"},"date_updated":"2025-09-11T10:01:52Z","publisher":"IOS Press","date_created":"2024-11-19T11:46:55Z","author":[{"last_name":"Fichte","full_name":"Fichte, Johannes K.","first_name":"Johannes K."},{"full_name":"Hecher, Markus","last_name":"Hecher","first_name":"Markus"},{"first_name":"Yasir","last_name":"Mahmood","id":"99353","full_name":"Mahmood, Yasir"},{"last_name":"Meier","full_name":"Meier, Arne","first_name":"Arne"}],"title":"Rejection in Abstract Argumentation: Harder Than Acceptance?","doi":"10.3233/faia240867","conference":{"location":"Santiago de Compostela, Spain","name":"ECAI} 2024 - 27th European Conference on Artificial Intelligence"}},{"abstract":[{"text":"<jats:p>Argumentation is a well-established formalism for nonmonotonic reasoning, with popular frameworks being Dung’s abstract argumentation (AFs) or logic-based argumentation (Besnard-Hunter’s framework). Structurally, a set of formulas forms support for a claim if it is consistent, subset-minimal, and implies the claim. Then, an argument comprises support and a claim. We observe that the computational task (ARG) of asking for support of a claim in a knowledge base is “brave”, since many claims with a single support are accepted. As a result, ARG falls short when it comes to the question of confidence in a claim, or claim strength. In this paper, we propose a concept for measuring the (acceptance) strength of claims, based on counting supports for a claim. Further, we settle classical and structural complexity of counting arguments favoring a given claim in propositional knowledge bases (KBs). We introduce quantitative reasoning to measure the strength of claims in a KB and to determine the relevance strength of a formula for a claim.</jats:p>","lang":"eng"}],"status":"public","publication":"Proceedings of the Thirty-ThirdInternational Joint Conference on Artificial Intelligence","type":"conference","language":[{"iso":"eng"}],"_id":"55655","project":[{"_id":"121","name":"TRR 318; TP B01: Ein dialogbasierter Ansatz zur Erklärung von Modellen des maschinellen Lernens"}],"department":[{"_id":"574"}],"user_id":"99353","year":"2024","citation":{"ieee":"M. Hecher, Y. Mahmood, A. Meier, and J. Schmidt, “Quantitative Claim-Centric Reasoning in Logic-Based Argumentation,” 2024, doi: <a href=\"https://doi.org/10.24963/ijcai.2024/377\">10.24963/ijcai.2024/377</a>.","chicago":"Hecher, Markus, Yasir Mahmood, Arne Meier, and Johannes Schmidt. “Quantitative Claim-Centric Reasoning in Logic-Based Argumentation.” In <i>Proceedings of the Thirty-ThirdInternational Joint Conference on Artificial Intelligence</i>. International Joint Conferences on Artificial Intelligence Organization, 2024. <a href=\"https://doi.org/10.24963/ijcai.2024/377\">https://doi.org/10.24963/ijcai.2024/377</a>.","ama":"Hecher M, Mahmood Y, Meier A, Schmidt J. Quantitative Claim-Centric Reasoning in Logic-Based Argumentation. In: <i>Proceedings of the Thirty-ThirdInternational Joint Conference on Artificial Intelligence</i>. International Joint Conferences on Artificial Intelligence Organization; 2024. doi:<a href=\"https://doi.org/10.24963/ijcai.2024/377\">10.24963/ijcai.2024/377</a>","bibtex":"@inproceedings{Hecher_Mahmood_Meier_Schmidt_2024, title={Quantitative Claim-Centric Reasoning in Logic-Based Argumentation}, DOI={<a href=\"https://doi.org/10.24963/ijcai.2024/377\">10.24963/ijcai.2024/377</a>}, booktitle={Proceedings of the Thirty-ThirdInternational Joint Conference on Artificial Intelligence}, publisher={International Joint Conferences on Artificial Intelligence Organization}, author={Hecher, Markus and Mahmood, Yasir and Meier, Arne and Schmidt, Johannes}, year={2024} }","mla":"Hecher, Markus, et al. “Quantitative Claim-Centric Reasoning in Logic-Based Argumentation.” <i>Proceedings of the Thirty-ThirdInternational Joint Conference on Artificial Intelligence</i>, International Joint Conferences on Artificial Intelligence Organization, 2024, doi:<a href=\"https://doi.org/10.24963/ijcai.2024/377\">10.24963/ijcai.2024/377</a>.","short":"M. Hecher, Y. Mahmood, A. Meier, J. Schmidt, in: Proceedings of the Thirty-ThirdInternational Joint Conference on Artificial Intelligence, International Joint Conferences on Artificial Intelligence Organization, 2024.","apa":"Hecher, M., Mahmood, Y., Meier, A., &#38; Schmidt, J. (2024). Quantitative Claim-Centric Reasoning in Logic-Based Argumentation. <i>Proceedings of the Thirty-ThirdInternational Joint Conference on Artificial Intelligence</i>. <a href=\"https://doi.org/10.24963/ijcai.2024/377\">https://doi.org/10.24963/ijcai.2024/377</a>"},"publication_status":"published","title":"Quantitative Claim-Centric Reasoning in Logic-Based Argumentation","doi":"10.24963/ijcai.2024/377","publisher":"International Joint Conferences on Artificial Intelligence Organization","date_updated":"2025-09-11T10:02:03Z","date_created":"2024-08-19T16:21:51Z","author":[{"first_name":"Markus","full_name":"Hecher, Markus","last_name":"Hecher"},{"last_name":"Mahmood","full_name":"Mahmood, Yasir","id":"99353","first_name":"Yasir"},{"full_name":"Meier, Arne","last_name":"Meier","first_name":"Arne"},{"full_name":"Schmidt, Johannes","last_name":"Schmidt","first_name":"Johannes"}]},{"year":"2024","citation":{"bibtex":"@article{Hankala_Hannula_Mahmood_Meier_2024, title={Parameterised Complexity of Consistent Query Answering via Graph  Representations}, journal={arXiv:2412.08324}, author={Hankala, Teemu and Hannula, Miika and Mahmood, Yasir and Meier, Arne}, year={2024} }","short":"T. Hankala, M. Hannula, Y. Mahmood, A. Meier, ArXiv:2412.08324 (2024).","mla":"Hankala, Teemu, et al. “Parameterised Complexity of Consistent Query Answering via Graph  Representations.” <i>ArXiv:2412.08324</i>, 2024.","apa":"Hankala, T., Hannula, M., Mahmood, Y., &#38; Meier, A. (2024). Parameterised Complexity of Consistent Query Answering via Graph  Representations. In <i>arXiv:2412.08324</i>.","ama":"Hankala T, Hannula M, Mahmood Y, Meier A. Parameterised Complexity of Consistent Query Answering via Graph  Representations. <i>arXiv:241208324</i>. Published online 2024.","ieee":"T. Hankala, M. Hannula, Y. Mahmood, and A. Meier, “Parameterised Complexity of Consistent Query Answering via Graph  Representations,” <i>arXiv:2412.08324</i>. 2024.","chicago":"Hankala, Teemu, Miika Hannula, Yasir Mahmood, and Arne Meier. “Parameterised Complexity of Consistent Query Answering via Graph  Representations.” <i>ArXiv:2412.08324</i>, 2024."},"date_updated":"2025-09-11T10:01:35Z","author":[{"first_name":"Teemu","full_name":"Hankala, Teemu","last_name":"Hankala"},{"last_name":"Hannula","full_name":"Hannula, Miika","first_name":"Miika"},{"last_name":"Mahmood","full_name":"Mahmood, Yasir","id":"99353","first_name":"Yasir"},{"first_name":"Arne","last_name":"Meier","full_name":"Meier, Arne"}],"date_created":"2024-12-15T20:12:56Z","title":"Parameterised Complexity of Consistent Query Answering via Graph  Representations","type":"preprint","publication":"arXiv:2412.08324","abstract":[{"lang":"eng","text":"We study consistent query answering via different graph representations.\r\nFirst, we introduce solution-conflict hypergraphs in which nodes represent\r\nfacts and edges represent either conflicts or query solutions. Considering a\r\nmonotonic query and a set of antimonotonic constraints, we present an explicit\r\nalgorithm for counting the number of repairs satisfying the query based on a\r\ntree decomposition of the solution-conflict hypergraph. The algorithm not only\r\nprovides fixed-parameter tractability results for data complexity over\r\nexpressive query and constraint classes, but also introduces a novel and\r\npotentially implementable approach to repair counting. Second, we consider the\r\nGaifman graphs arising from MSO descriptions of consistent query answering.\r\nUsing a generalization of Courcelle's theorem, we then present fixed-parameter\r\ntractability results for combined complexity over expressive query and\r\nconstraint classes."}],"status":"public","project":[{"name":"TRR 318; TP B01: Ein dialogbasierter Ansatz zur Erklärung von Modellen des maschinellen Lernens","_id":"121"}],"_id":"57814","external_id":{"arxiv":["2412.08324"]},"user_id":"99353","department":[{"_id":"574"}],"language":[{"iso":"eng"}]}]