[{"type":"conference","department":[{"_id":"143"}],"date_created":"2021-09-09T10:11:40Z","citation":{"bibtex":"@inproceedings{Joy_Kullmer_Risse_2020, title={Vorhersage der Rissinitiierung in 3D-Strukturen mit ADAPCRACK3D}, volume={DVM-Bericht 252}, author={Joy, Tintu David and Kullmer, Gunter and Risse, Lena}, year={2020}, pages={207–216} }","ama":"Joy TD, Kullmer G, Risse L. Vorhersage der Rissinitiierung in 3D-Strukturen mit ADAPCRACK3D. In: Vol DVM-Bericht 252. ; 2020:207-216.","mla":"Joy, Tintu David, et al. <i>Vorhersage der Rissinitiierung in 3D-Strukturen mit ADAPCRACK3D</i>. 2020, pp. 207–16.","short":"T.D. Joy, G. Kullmer, L. Risse, in: 2020, pp. 207–216.","chicago":"Joy, Tintu David, Gunter Kullmer, and Lena Risse. “Vorhersage der Rissinitiierung in 3D-Strukturen mit ADAPCRACK3D,” DVM-Bericht 252:207–16, 2020.","ieee":"T. D. Joy, G. Kullmer, and L. Risse, “Vorhersage der Rissinitiierung in 3D-Strukturen mit ADAPCRACK3D,” Hamburg, 2020, vol. DVM-Bericht 252, pp. 207–216.","apa":"Joy, T. D., Kullmer, G., &#38; Risse, L. (2020). <i>Vorhersage der Rissinitiierung in 3D-Strukturen mit ADAPCRACK3D</i>. <i>DVM-Bericht 252</i>, 207–216."},"user_id":"45673","volume":"DVM-Bericht 252","page":"207-216","_id":"24011","language":[{"iso":"ger"}],"date_updated":"2022-01-06T06:56:05Z","title":"Vorhersage der Rissinitiierung in 3D-Strukturen mit ADAPCRACK3D","year":"2020","status":"public","author":[{"id":"30821","last_name":"Joy","first_name":"Tintu David","full_name":"Joy, Tintu David"},{"last_name":"Kullmer","first_name":"Gunter","full_name":"Kullmer, Gunter","id":"291"},{"first_name":"Lena","last_name":"Risse","full_name":"Risse, Lena","id":"27356"}],"conference":{"name":"Arbeitskreis: Bruchmechanische Werkstoff- und Bauteilbewertung: Beanspruchungsanalyse, Prüfmethoden und Anwendungen","start_date":"2020-02-19","location":"Hamburg","end_date":"2020-02-20"}},{"citation":{"mla":"Ebers, Lena, et al. “Light Diffraction in Slab Waveguide Lenses Simulated with the Stepwise Angular Spectrum Method.” <i>Optics Express</i>, vol. 28, no. 24, 2020, p. 36361, doi:<a href=\"https://doi.org/10.1364/oe.409612\">10.1364/oe.409612</a>.","ama":"Ebers L, Hammer M, Förstner J. Light diffraction in slab waveguide lenses simulated with the stepwise angular spectrum method. <i>Optics Express</i>. 2020;28(24):36361. doi:<a href=\"https://doi.org/10.1364/oe.409612\">10.1364/oe.409612</a>","bibtex":"@article{Ebers_Hammer_Förstner_2020, title={Light diffraction in slab waveguide lenses simulated with the stepwise angular spectrum method}, volume={28}, DOI={<a href=\"https://doi.org/10.1364/oe.409612\">10.1364/oe.409612</a>}, number={24}, journal={Optics Express}, author={Ebers, Lena and Hammer, Manfred and Förstner, Jens}, year={2020}, pages={36361} }","apa":"Ebers, L., Hammer, M., &#38; Förstner, J. (2020). Light diffraction in slab waveguide lenses simulated with the stepwise angular spectrum method. <i>Optics Express</i>, <i>28</i>(24), 36361. <a href=\"https://doi.org/10.1364/oe.409612\">https://doi.org/10.1364/oe.409612</a>","ieee":"L. Ebers, M. Hammer, and J. Förstner, “Light diffraction in slab waveguide lenses simulated with the stepwise angular spectrum method,” <i>Optics Express</i>, vol. 28, no. 24, p. 36361, 2020.","chicago":"Ebers, Lena, Manfred Hammer, and Jens Förstner. “Light Diffraction in Slab Waveguide Lenses Simulated with the Stepwise Angular Spectrum Method.” <i>Optics Express</i> 28, no. 24 (2020): 36361. <a href=\"https://doi.org/10.1364/oe.409612\">https://doi.org/10.1364/oe.409612</a>.","short":"L. Ebers, M. Hammer, J. Förstner, Optics Express 28 (2020) 36361."},"project":[{"_id":"53","name":"TRR 142"},{"name":"TRR 142 - Project Area C","_id":"56"},{"_id":"74","name":"TRR 142 - Subproject C4"},{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"status":"public","_id":"20372","page":"36361","volume":28,"user_id":"158","issue":"24","publication":"Optics Express","abstract":[{"lang":"eng","text":"A stepwise angular spectrum method (SASM) for curved interfaces is presented to calculate the wave propagation in planar lens-like integrated optical structures based on photonic slab waveguides. The method is derived and illustrated for an effective 2D setup first and then for 3D slab waveguide lenses. We employ slab waveguides of different thicknesses connected by curved surfaces to realize a lens-like structure. To simulate the wave propagation in 3D including reflection and scattering losses, the stepwise angular spectrum method is combined with full vectorial finite element computations for subproblems with lower complexity. Our SASM results show excellent agreement with rigorous numerical simulations of the full structures with a substantially lower computational effort and can be utilized for the simulation-based design and optimization of complex and large scale setups."}],"date_created":"2020-11-17T09:52:47Z","department":[{"_id":"61"},{"_id":"230"},{"_id":"429"}],"type":"journal_article","keyword":["tet_topic_waveguides"],"publication_identifier":{"issn":["1094-4087"]},"author":[{"id":"40428","last_name":"Ebers","first_name":"Lena","full_name":"Ebers, Lena"},{"first_name":"Manfred","orcid":"0000-0002-6331-9348","last_name":"Hammer","full_name":"Hammer, Manfred","id":"48077"},{"id":"158","orcid":"0000-0001-7059-9862","first_name":"Jens","last_name":"Förstner","full_name":"Förstner, Jens"}],"year":"2020","title":"Light diffraction in slab waveguide lenses simulated with the stepwise angular spectrum method","intvolume":"        28","date_updated":"2022-01-06T06:54:26Z","publication_status":"published","language":[{"iso":"eng"}],"doi":"10.1364/oe.409612"},{"publication":"International Symposium on Code Generation and Optimization (CGO)","citation":{"chicago":"Krüger, Stefan, Karim Ali, and Eric Bodden. “CogniCrypt_GEN - Generating Code for the Secure Usage of Crypto APIs.” In <i>International Symposium on Code Generation and Optimization (CGO)</i>, 185–98, 2020.","short":"S. Krüger, K. Ali, E. Bodden, in: International Symposium on Code Generation and Optimization (CGO), 2020, pp. 185–198.","apa":"Krüger, S., Ali, K., &#38; Bodden, E. (2020). CogniCrypt_GEN - Generating Code for the Secure Usage of Crypto APIs. <i>International Symposium on Code Generation and Optimization (CGO)</i>, 185–198.","ieee":"S. Krüger, K. Ali, and E. Bodden, “CogniCrypt_GEN - Generating Code for the Secure Usage of Crypto APIs,” in <i>International Symposium on Code Generation and Optimization (CGO)</i>, 2020, pp. 185–198.","ama":"Krüger S, Ali K, Bodden E. CogniCrypt_GEN - Generating Code for the Secure Usage of Crypto APIs. In: <i>International Symposium on Code Generation and Optimization (CGO)</i>. ; 2020:185-198.","bibtex":"@inproceedings{Krüger_Ali_Bodden_2020, title={CogniCrypt_GEN - Generating Code for the Secure Usage of Crypto APIs}, booktitle={International Symposium on Code Generation and Optimization (CGO)}, author={Krüger, Stefan and Ali, Karim and Bodden, Eric}, year={2020}, pages={185–198} }","mla":"Krüger, Stefan, et al. “CogniCrypt_GEN - Generating Code for the Secure Usage of Crypto APIs.” <i>International Symposium on Code Generation and Optimization (CGO)</i>, 2020, pp. 185–98."},"related_material":{"link":[{"relation":"confirmation","url":"http://www.bodden.de/pubs/krueger20cognicryptgen.pdf"}]},"date_created":"2020-11-26T08:51:01Z","type":"conference","department":[{"_id":"76"}],"title":"CogniCrypt_GEN - Generating Code for the Secure Usage of Crypto APIs","status":"public","year":"2020","author":[{"full_name":"Krüger, Stefan","first_name":"Stefan","last_name":"Krüger"},{"full_name":"Ali, Karim","last_name":"Ali","first_name":"Karim"},{"last_name":"Bodden","first_name":"Eric","full_name":"Bodden, Eric"}],"date_updated":"2022-01-06T06:54:29Z","page":"185-198","language":[{"iso":"eng"}],"_id":"20512","user_id":"5786"},{"main_file_link":[{"open_access":"1","url":"https://iopscience.iop.org/article/10.1088/1757-899X/967/1/012077/pdf"}],"_id":"20854","language":[{"iso":"eng"}],"series_title":" IOP Conference Series: Materials Science and Engineering","doi":"10.1088/1757-899X/967/1/012077","user_id":"60544","year":"2020","title":"A simplified method for the evaluation of the layer compression test using one 3D digital image correlation system and considering the material anisotropy by the equibiaxial Lankford parameter","status":"public","conference":{"start_date":"2020-10-26","name":"International Deep-Drawing Research Group (IDDRG 2020)","location":"Seoul, South Korea","end_date":"2020-10-30"},"author":[{"id":"60544","full_name":"Camberg, Alan Adam","first_name":"Alan Adam","last_name":"Camberg"},{"last_name":"Tröster","first_name":"Thomas","full_name":"Tröster, Thomas","id":"553"}],"date_updated":"2022-01-06T06:54:40Z","date_created":"2021-01-04T15:11:08Z","type":"conference","oa":"1","department":[{"_id":"9"},{"_id":"321"},{"_id":"149"}],"citation":{"apa":"Camberg, A. A., &#38; Tröster, T. (2020). A simplified method for the evaluation of the layer compression test using one 3D digital image correlation system and considering the material anisotropy by the equibiaxial Lankford parameter. Presented at the International Deep-Drawing Research Group (IDDRG 2020), Seoul, South Korea. <a href=\"https://doi.org/10.1088/1757-899X/967/1/012077\">https://doi.org/10.1088/1757-899X/967/1/012077</a>","ieee":"A. A. Camberg and T. Tröster, “A simplified method for the evaluation of the layer compression test using one 3D digital image correlation system and considering the material anisotropy by the equibiaxial Lankford parameter.” 2020.","short":"A.A. Camberg, T. Tröster, (2020).","chicago":"Camberg, Alan Adam, and Thomas Tröster. “A Simplified Method for the Evaluation of the Layer Compression Test Using One 3D Digital Image Correlation System and Considering the Material Anisotropy by the Equibiaxial Lankford Parameter.”  IOP Conference Series: Materials Science and Engineering, 2020. <a href=\"https://doi.org/10.1088/1757-899X/967/1/012077\">https://doi.org/10.1088/1757-899X/967/1/012077</a>.","mla":"Camberg, Alan Adam, and Thomas Tröster. <i>A Simplified Method for the Evaluation of the Layer Compression Test Using One 3D Digital Image Correlation System and Considering the Material Anisotropy by the Equibiaxial Lankford Parameter</i>. 2020, doi:<a href=\"https://doi.org/10.1088/1757-899X/967/1/012077\">10.1088/1757-899X/967/1/012077</a>.","ama":"Camberg AA, Tröster T. A simplified method for the evaluation of the layer compression test using one 3D digital image correlation system and considering the material anisotropy by the equibiaxial Lankford parameter. 2020. doi:<a href=\"https://doi.org/10.1088/1757-899X/967/1/012077\">10.1088/1757-899X/967/1/012077</a>","bibtex":"@article{Camberg_Tröster_2020, series={ IOP Conference Series: Materials Science and Engineering}, title={A simplified method for the evaluation of the layer compression test using one 3D digital image correlation system and considering the material anisotropy by the equibiaxial Lankford parameter}, DOI={<a href=\"https://doi.org/10.1088/1757-899X/967/1/012077\">10.1088/1757-899X/967/1/012077</a>}, author={Camberg, Alan Adam and Tröster, Thomas}, year={2020}, collection={ IOP Conference Series: Materials Science and Engineering} }"}},{"type":"book_chapter","department":[{"_id":"34"},{"_id":"7"},{"_id":"355"}],"date_created":"2020-08-17T11:44:37Z","publication":"Learning and Intelligent Optimization. LION 2020.","doi":"10.1007/978-3-030-53552-0_22","language":[{"iso":"eng"}],"series_title":"Lecture Notes in Computer Science","publication_status":"published","date_updated":"2022-01-06T06:53:25Z","intvolume":"     12096","title":"Pool-Based Realtime Algorithm Configuration: A Preselection Bandit Approach","year":"2020","author":[{"full_name":"El Mesaoudi-Paul, Adil","first_name":"Adil","last_name":"El Mesaoudi-Paul"},{"full_name":"Weiß, Dimitri","first_name":"Dimitri","last_name":"Weiß"},{"id":"76599","full_name":"Bengs, Viktor","last_name":"Bengs","first_name":"Viktor"},{"id":"48129","full_name":"Hüllermeier, Eyke","first_name":"Eyke","last_name":"Hüllermeier"},{"last_name":"Tierney","first_name":"Kevin","full_name":"Tierney, Kevin"}],"publication_identifier":{"isbn":["9783030535513","9783030535520"],"issn":["0302-9743","1611-3349"]},"place":"Cham","project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"citation":{"apa":"El Mesaoudi-Paul, A., Weiß, D., Bengs, V., Hüllermeier, E., &#38; Tierney, K. (2020). Pool-Based Realtime Algorithm Configuration: A Preselection Bandit Approach. In <i>Learning and Intelligent Optimization. LION 2020.</i> (Vol. 12096, pp. 216–232). Cham: Springer. <a href=\"https://doi.org/10.1007/978-3-030-53552-0_22\">https://doi.org/10.1007/978-3-030-53552-0_22</a>","ieee":"A. El Mesaoudi-Paul, D. Weiß, V. Bengs, E. Hüllermeier, and K. Tierney, “Pool-Based Realtime Algorithm Configuration: A Preselection Bandit Approach,” in <i>Learning and Intelligent Optimization. LION 2020.</i>, vol. 12096, Cham: Springer, 2020, pp. 216–232.","chicago":"El Mesaoudi-Paul, Adil, Dimitri Weiß, Viktor Bengs, Eyke Hüllermeier, and Kevin Tierney. “Pool-Based Realtime Algorithm Configuration: A Preselection Bandit Approach.” In <i>Learning and Intelligent Optimization. LION 2020.</i>, 12096:216–32. Lecture Notes in Computer Science. Cham: Springer, 2020. <a href=\"https://doi.org/10.1007/978-3-030-53552-0_22\">https://doi.org/10.1007/978-3-030-53552-0_22</a>.","short":"A. El Mesaoudi-Paul, D. Weiß, V. Bengs, E. Hüllermeier, K. Tierney, in: Learning and Intelligent Optimization. LION 2020., Springer, Cham, 2020, pp. 216–232.","mla":"El Mesaoudi-Paul, Adil, et al. “Pool-Based Realtime Algorithm Configuration: A Preselection Bandit Approach.” <i>Learning and Intelligent Optimization. LION 2020.</i>, vol. 12096, Springer, 2020, pp. 216–32, doi:<a href=\"https://doi.org/10.1007/978-3-030-53552-0_22\">10.1007/978-3-030-53552-0_22</a>.","ama":"El Mesaoudi-Paul A, Weiß D, Bengs V, Hüllermeier E, Tierney K. Pool-Based Realtime Algorithm Configuration: A Preselection Bandit Approach. In: <i>Learning and Intelligent Optimization. LION 2020.</i> Vol 12096. Lecture Notes in Computer Science. Cham: Springer; 2020:216-232. doi:<a href=\"https://doi.org/10.1007/978-3-030-53552-0_22\">10.1007/978-3-030-53552-0_22</a>","bibtex":"@inbook{El Mesaoudi-Paul_Weiß_Bengs_Hüllermeier_Tierney_2020, place={Cham}, series={Lecture Notes in Computer Science}, title={Pool-Based Realtime Algorithm Configuration: A Preselection Bandit Approach}, volume={12096}, DOI={<a href=\"https://doi.org/10.1007/978-3-030-53552-0_22\">10.1007/978-3-030-53552-0_22</a>}, booktitle={Learning and Intelligent Optimization. LION 2020.}, publisher={Springer}, author={El Mesaoudi-Paul, Adil and Weiß, Dimitri and Bengs, Viktor and Hüllermeier, Eyke and Tierney, Kevin}, year={2020}, pages={216–232}, collection={Lecture Notes in Computer Science} }"},"user_id":"76599","volume":12096,"page":"216 - 232","_id":"18014","publisher":"Springer","status":"public"},{"place":"Cham","oa":"1","file_date_updated":"2020-11-30T08:36:52Z","citation":{"chicago":"Gottschalk, Sebastian, Enes Yigitbas, Eugen Schmidt, and Gregor Engels. “Model-Based Product Configuration in Augmented Reality Applications.” In <i>Human-Centered Software Engineering. HCSE 2020</i>, edited by Regina Bernhaupt, Carmelo Ardito, and Stefan Sauer, Vol. 12481. Lecture Notes in Computer Science. Cham: Springer, 2020. <a href=\"https://doi.org/10.1007/978-3-030-64266-2_5\">https://doi.org/10.1007/978-3-030-64266-2_5</a>.","short":"S. Gottschalk, E. Yigitbas, E. Schmidt, G. Engels, in: R. Bernhaupt, C. Ardito, S. Sauer (Eds.), Human-Centered Software Engineering. HCSE 2020, Springer, Cham, 2020.","apa":"Gottschalk, S., Yigitbas, E., Schmidt, E., &#38; Engels, G. (2020). Model-based Product Configuration in Augmented Reality Applications. In R. Bernhaupt, C. Ardito, &#38; S. Sauer (Eds.), <i>Human-Centered Software Engineering. HCSE 2020</i> (Vol. 12481). Cham: Springer. <a href=\"https://doi.org/10.1007/978-3-030-64266-2_5\">https://doi.org/10.1007/978-3-030-64266-2_5</a>","ieee":"S. Gottschalk, E. Yigitbas, E. Schmidt, and G. Engels, “Model-based Product Configuration in Augmented Reality Applications,” in <i>Human-Centered Software Engineering. HCSE 2020</i>, Eindhoven, 2020, vol. 12481.","ama":"Gottschalk S, Yigitbas E, Schmidt E, Engels G. Model-based Product Configuration in Augmented Reality Applications. In: Bernhaupt R, Ardito C, Sauer S, eds. <i>Human-Centered Software Engineering. HCSE 2020</i>. Vol 12481. Lecture Notes in Computer Science. Cham: Springer; 2020. doi:<a href=\"https://doi.org/10.1007/978-3-030-64266-2_5\">10.1007/978-3-030-64266-2_5</a>","bibtex":"@inproceedings{Gottschalk_Yigitbas_Schmidt_Engels_2020, place={Cham}, series={Lecture Notes in Computer Science}, title={Model-based Product Configuration in Augmented Reality Applications}, volume={12481}, DOI={<a href=\"https://doi.org/10.1007/978-3-030-64266-2_5\">10.1007/978-3-030-64266-2_5</a>}, booktitle={Human-Centered Software Engineering. HCSE 2020}, publisher={Springer}, author={Gottschalk, Sebastian and Yigitbas, Enes and Schmidt, Eugen and Engels, Gregor}, editor={Bernhaupt, Regina and Ardito, Carmelo and Sauer, StefanEditors}, year={2020}, collection={Lecture Notes in Computer Science} }","mla":"Gottschalk, Sebastian, et al. “Model-Based Product Configuration in Augmented Reality Applications.” <i>Human-Centered Software Engineering. HCSE 2020</i>, edited by Regina Bernhaupt et al., vol. 12481, Springer, 2020, doi:<a href=\"https://doi.org/10.1007/978-3-030-64266-2_5\">10.1007/978-3-030-64266-2_5</a>."},"project":[{"name":"SFB 901","_id":"1"},{"_id":"4","name":"SFB 901 - Project Area C"},{"name":"SFB 901 - Subproject C5","_id":"17"}],"publisher":"Springer","_id":"18249","ddc":["000"],"user_id":"47208","editor":[{"first_name":"Regina","last_name":"Bernhaupt","full_name":"Bernhaupt, Regina"},{"full_name":"Ardito, Carmelo","first_name":"Carmelo","last_name":"Ardito"},{"first_name":"Stefan","last_name":"Sauer","full_name":"Sauer, Stefan"}],"volume":12481,"status":"public","conference":{"end_date":"2020-12-02","location":"Eindhoven","name":"8th International Working Conference on Human-Centered Software Engineering (HCSE'20)","start_date":"2020-11-30"},"has_accepted_license":"1","file":[{"creator":"sego","date_created":"2020-11-30T08:33:30Z","access_level":"open_access","file_size":2258601,"file_name":"HCSE20_full.pdf","date_updated":"2020-11-30T08:36:52Z","relation":"main_file","content_type":"application/pdf","file_id":"20541"}],"date_created":"2020-08-25T08:27:38Z","type":"conference","keyword":["Product Configuration","Augmented Reality","Runtime Adaptation","Dynamic Software Product Lines"],"department":[{"_id":"66"},{"_id":"534"}],"publication":"Human-Centered Software Engineering. HCSE 2020","abstract":[{"lang":"eng","text":"Augmented Reality (AR) has recently found high attention in mobile shopping apps such as in domains like furniture or decoration. Here, the developers of the apps focus on the positioning of atomic 3D objects in the physical environment. With this focus, they neglect the configuration of multi-faceted 3D object composition according to the user needs and environmental constraints. To tackle these challenges, we present a model-based approach to support AR-assisted product con-figuration based on the concept of Dynamic Software Product Lines. Our approach splits products (e.g. table) into parts (e.g. tabletop, ta-ble legs, funnier) with their 3D objects and additional information (e.g. name, price). The possible products, which can be configured out of these parts, are stored in a feature model. At runtime, this feature model can be used to configure 3D object compositions out of the product parts and adapt to user needs and environmental constraints. The benefits of this approach are demonstrated by a case study of configuring modular kitchens with the help of a prototypical mobile-based implementation."}],"language":[{"iso":"eng"}],"series_title":"Lecture Notes in Computer Science","doi":"10.1007/978-3-030-64266-2_5","title":"Model-based Product Configuration in Augmented Reality Applications","year":"2020","author":[{"id":"47208","first_name":"Sebastian","last_name":"Gottschalk","full_name":"Gottschalk, Sebastian"},{"full_name":"Yigitbas, Enes","first_name":"Enes","last_name":"Yigitbas","orcid":"0000-0002-5967-833X","id":"8447"},{"full_name":"Schmidt, Eugen","last_name":"Schmidt","first_name":"Eugen"},{"full_name":"Engels, Gregor","first_name":"Gregor","last_name":"Engels","id":"107"}],"date_updated":"2022-01-06T06:53:28Z","publication_status":"published","intvolume":"     12481"},{"volume":13,"user_id":"24876","language":[{"iso":"eng"}],"_id":"22963","page":"203-219","intvolume":"        13","date_updated":"2022-01-06T06:55:44Z","author":[{"id":"24876","full_name":"Biemelt, Patrick","last_name":"Biemelt","first_name":"Patrick"},{"full_name":"Gausemeier, Sandra","first_name":"Sandra","last_name":"Gausemeier","id":"17793"},{"full_name":"Trächtler, Ansgar","first_name":"Ansgar","last_name":"Trächtler","id":"552"}],"status":"public","title":"Design and Objective Evaluation of Filter- and Optimization-based Motion Cueing Strategies for a Hybrid Kinematics Driving Simulator with 5 Degrees of Freedom","year":"2020","department":[{"_id":"153"}],"type":"journal_article","date_created":"2021-08-09T05:16:48Z","citation":{"ieee":"P. Biemelt, S. Gausemeier, and A. Trächtler, “Design and Objective Evaluation of Filter- and Optimization-based Motion Cueing Strategies for a Hybrid Kinematics Driving Simulator with 5 Degrees of Freedom,” <i>International Journal On Advances in Systems and Measurements</i>, vol. 13, no. 3 &#38; 4, pp. 203–219, 2020.","apa":"Biemelt, P., Gausemeier, S., &#38; Trächtler, A. (2020). Design and Objective Evaluation of Filter- and Optimization-based Motion Cueing Strategies for a Hybrid Kinematics Driving Simulator with 5 Degrees of Freedom. <i>International Journal On Advances in Systems and Measurements</i>, <i>13</i>(3 &#38; 4), 203–219.","mla":"Biemelt, Patrick, et al. “Design and Objective Evaluation of Filter- and Optimization-Based Motion Cueing Strategies for a Hybrid Kinematics Driving Simulator with 5 Degrees of Freedom.” <i>International Journal On Advances in Systems and Measurements</i>, vol. 13, no. 3 &#38; 4, 2020, pp. 203–19.","bibtex":"@article{Biemelt_Gausemeier_Trächtler_2020, title={Design and Objective Evaluation of Filter- and Optimization-based Motion Cueing Strategies for a Hybrid Kinematics Driving Simulator with 5 Degrees of Freedom}, volume={13}, number={3 &#38; 4}, journal={International Journal On Advances in Systems and Measurements}, author={Biemelt, Patrick and Gausemeier, Sandra and Trächtler, Ansgar}, year={2020}, pages={203–219} }","chicago":"Biemelt, Patrick, Sandra Gausemeier, and Ansgar Trächtler. “Design and Objective Evaluation of Filter- and Optimization-Based Motion Cueing Strategies for a Hybrid Kinematics Driving Simulator with 5 Degrees of Freedom.” <i>International Journal On Advances in Systems and Measurements</i> 13, no. 3 &#38; 4 (2020): 203–19.","ama":"Biemelt P, Gausemeier S, Trächtler A. Design and Objective Evaluation of Filter- and Optimization-based Motion Cueing Strategies for a Hybrid Kinematics Driving Simulator with 5 Degrees of Freedom. <i>International Journal On Advances in Systems and Measurements</i>. 2020;13(3 &#38; 4):203-219.","short":"P. Biemelt, S. Gausemeier, A. Trächtler, International Journal On Advances in Systems and Measurements 13 (2020) 203–219."},"publication":"International Journal On Advances in Systems and Measurements","issue":"3 & 4"},{"date_updated":"2022-01-06T06:52:59Z","status":"public","year":"2020","title":"A Holistic Approach to Optimization-Based Design of Hybrid Materials","conference":{"location":"Web-Conference","name":"4th International Conference Hybrid Materials & Structures 2020","start_date":"2020-04-28","end_date":"2020-04-29"},"author":[{"full_name":"Triebus, Marcel","last_name":"Triebus","first_name":"Marcel","id":"66036"},{"id":"553","last_name":"Tröster","first_name":"Thomas","full_name":"Tröster, Thomas"}],"user_id":"66036","main_file_link":[{"url":"https://hybrid2020.dgm.de/fileadmin/Tagungen/2020/2020-04-Hybrid-Materials/02-Graphik-Druckwerke/2020-Hybrid-Proceedings.pdf","open_access":"1"}],"language":[{"iso":"eng"}],"_id":"16939","publication":"Proceedings 4th International Conference Hybrid Materials & Structures","citation":{"bibtex":"@inproceedings{Triebus_Tröster_2020, title={A Holistic Approach to Optimization-Based Design of Hybrid Materials}, booktitle={Proceedings 4th International Conference Hybrid Materials &#38; Structures}, author={Triebus, Marcel and Tröster, Thomas}, year={2020} }","chicago":"Triebus, Marcel, and Thomas Tröster. “A Holistic Approach to Optimization-Based Design of Hybrid Materials.” In <i>Proceedings 4th International Conference Hybrid Materials &#38; Structures</i>, 2020.","ama":"Triebus M, Tröster T. A Holistic Approach to Optimization-Based Design of Hybrid Materials. In: <i>Proceedings 4th International Conference Hybrid Materials &#38; Structures</i>. ; 2020.","short":"M. Triebus, T. Tröster, in: Proceedings 4th International Conference Hybrid Materials &#38; Structures, 2020.","ieee":"M. Triebus and T. Tröster, “A Holistic Approach to Optimization-Based Design of Hybrid Materials,” in <i>Proceedings 4th International Conference Hybrid Materials &#38; Structures</i>, Web-Conference, 2020.","apa":"Triebus, M., &#38; Tröster, T. (2020). A Holistic Approach to Optimization-Based Design of Hybrid Materials. In <i>Proceedings 4th International Conference Hybrid Materials &#38; Structures</i>. Web-Conference.","mla":"Triebus, Marcel, and Thomas Tröster. “A Holistic Approach to Optimization-Based Design of Hybrid Materials.” <i>Proceedings 4th International Conference Hybrid Materials &#38; Structures</i>, 2020."},"type":"conference","oa":"1","department":[{"_id":"9"},{"_id":"321"},{"_id":"149"}],"date_created":"2020-05-06T10:45:19Z"},{"file":[{"access_level":"closed","file_size":505712,"file_name":"localGathering.pdf","date_updated":"2020-07-31T08:22:16Z","relation":"main_file","content_type":"application/pdf","success":1,"file_id":"17504","creator":"janniksu","date_created":"2020-07-31T08:22:16Z"}],"date_created":"2020-05-18T06:48:35Z","type":"conference","department":[{"_id":"63"}],"publication":"Proceedings of the 27th Conference on Structural Information and Communication Complexity (SIROCCO)","abstract":[{"text":"In this work, we initiate the research about the Gathering problem for robots\r\nwith limited viewing range in the three-dimensional Euclidean space. In the\r\nGathering problem, a set of initially scattered robots is required to gather at\r\nthe same position. The robots' capabilities are very restricted -- they do not\r\nagree on any coordinate system or compass, have a limited viewing range, have\r\nno memory of the past and cannot communicate. We study the problem in two\r\ndifferent time models, in FSYNC (fully synchronized discrete rounds) and the\r\ncontinuous time model. For FSYNC, we introduce the 3D-Go-To-The-Center-strategy\r\nand prove a runtime of $\\Theta(n^2)$ that matches the currently best runtime\r\nbound for the same model in the Euclidean plane [SPAA'11]. Our main result is\r\nthe generalization of contracting strategies (continuous time) from\r\n[Algosensors'17] to three dimensions. In contracting strategies, every robot\r\nthat is located on the global convex hull of all robots' positions moves with\r\nfull speed towards the inside of the convex hull. We prove a runtime bound of\r\n$O(\\Delta \\cdot n^{3/2})$ for any three-dimensional contracting strategy, where\r\n$\\Delta$ denotes the diameter of the initial configuration. This comes up to a\r\nfactor of $\\sqrt{n}$ close to the lower bound of $\\Omega (\\Delta \\cdot n)$\r\nwhich is already true in two dimensions. In general, it might be hard for\r\nrobots with limited viewing range to decide whether they are located on the\r\nglobal convex hull and which movement maintains the connectivity of the swarm,\r\nrendering the design of concrete contracting strategies a challenging task. We\r\nprove that the continuous variant of 3D-Go-To-The-Center is contracting and\r\nkeeps the swarm connected. Moreover, we give a simple design criterion for\r\nthree-dimensional contracting strategies that maintains the connectivity of the\r\nswarm and introduce an exemplary strategy based on this criterion.","lang":"eng"},{"lang":"eng","text":"Best Student Paper Award"}],"language":[{"iso":"eng"}],"doi":"10.1007/978-3-030-54921-3_4","year":"2020","title":"Local Gathering of Mobile Robots in Three Dimensions","author":[{"last_name":"Braun","first_name":"Michael","full_name":"Braun, Michael"},{"full_name":"Castenow, Jannik","first_name":"Jannik","last_name":"Castenow","id":"38705"},{"id":"15523","first_name":"Friedhelm","last_name":"Meyer auf der Heide","full_name":"Meyer auf der Heide, Friedhelm"}],"date_updated":"2022-01-06T06:53:00Z","external_id":{"arxiv":["arXiv:2005.07495"]},"file_date_updated":"2020-07-31T08:22:16Z","citation":{"apa":"Braun, M., Castenow, J., &#38; Meyer auf der Heide, F. (2020). Local Gathering of Mobile Robots in Three Dimensions. In <i>Proceedings of the 27th Conference on Structural Information and Communication Complexity (SIROCCO)</i>. Paderborn: Springer. <a href=\"https://doi.org/10.1007/978-3-030-54921-3_4\">https://doi.org/10.1007/978-3-030-54921-3_4</a>","ieee":"M. Braun, J. Castenow, and F. Meyer auf der Heide, “Local Gathering of Mobile Robots in Three Dimensions,” in <i>Proceedings of the 27th Conference on Structural Information and Communication Complexity (SIROCCO)</i>, Paderborn, 2020.","short":"M. Braun, J. Castenow, F. Meyer auf der Heide, in: Proceedings of the 27th Conference on Structural Information and Communication Complexity (SIROCCO), Springer, 2020.","chicago":"Braun, Michael, Jannik Castenow, and Friedhelm Meyer auf der Heide. “Local Gathering of Mobile Robots in Three Dimensions.” In <i>Proceedings of the 27th Conference on Structural Information and Communication Complexity (SIROCCO)</i>. Springer, 2020. <a href=\"https://doi.org/10.1007/978-3-030-54921-3_4\">https://doi.org/10.1007/978-3-030-54921-3_4</a>.","mla":"Braun, Michael, et al. “Local Gathering of Mobile Robots in Three Dimensions.” <i>Proceedings of the 27th Conference on Structural Information and Communication Complexity (SIROCCO)</i>, Springer, 2020, doi:<a href=\"https://doi.org/10.1007/978-3-030-54921-3_4\">10.1007/978-3-030-54921-3_4</a>.","ama":"Braun M, Castenow J, Meyer auf der Heide F. Local Gathering of Mobile Robots in Three Dimensions. In: <i>Proceedings of the 27th Conference on Structural Information and Communication Complexity (SIROCCO)</i>. Springer; 2020. doi:<a href=\"https://doi.org/10.1007/978-3-030-54921-3_4\">10.1007/978-3-030-54921-3_4</a>","bibtex":"@inproceedings{Braun_Castenow_Meyer auf der Heide_2020, title={Local Gathering of Mobile Robots in Three Dimensions}, DOI={<a href=\"https://doi.org/10.1007/978-3-030-54921-3_4\">10.1007/978-3-030-54921-3_4</a>}, booktitle={Proceedings of the 27th Conference on Structural Information and Communication Complexity (SIROCCO)}, publisher={Springer}, author={Braun, Michael and Castenow, Jannik and Meyer auf der Heide, Friedhelm}, year={2020} }"},"_id":"16968","publisher":"Springer","ddc":["000"],"user_id":"38705","status":"public","conference":{"location":"Paderborn","start_date":"2020-06-29","name":"SIROCCO 2020","end_date":"2020-07-01"},"has_accepted_license":"1"},{"status":"public","title":"Distinguishing Knowledge Impact from Citation Impact: A Methodology for Analysing Knowledge Impact for the Literature Review Genre","year":"2020","author":[{"id":"72850","full_name":"Schryen, Guido","first_name":"Guido","last_name":"Schryen"},{"full_name":"Wagner, Gerit","first_name":"Gerit","last_name":"Wagner"},{"last_name":"Benlian","first_name":"Alexander","full_name":"Benlian, Alexander"}],"date_updated":"2022-01-06T06:53:02Z","has_accepted_license":"1","main_file_link":[{"open_access":"1","url":"https://ssrn.com/abstract=3581789"}],"_id":"17019","language":[{"iso":"eng"}],"ddc":["000"],"user_id":"61579","file_date_updated":"2020-05-19T15:09:28Z","citation":{"bibtex":"@book{Schryen_Wagner_Benlian_2020, title={Distinguishing Knowledge Impact from Citation Impact: A Methodology for Analysing Knowledge Impact for the Literature Review Genre}, author={Schryen, Guido and Wagner, Gerit and Benlian, Alexander}, year={2020} }","ama":"Schryen G, Wagner G, Benlian A. <i>Distinguishing Knowledge Impact from Citation Impact: A Methodology for Analysing Knowledge Impact for the Literature Review Genre</i>.; 2020.","mla":"Schryen, Guido, et al. <i>Distinguishing Knowledge Impact from Citation Impact: A Methodology for Analysing Knowledge Impact for the Literature Review Genre</i>. 2020.","chicago":"Schryen, Guido, Gerit Wagner, and Alexander Benlian. <i>Distinguishing Knowledge Impact from Citation Impact: A Methodology for Analysing Knowledge Impact for the Literature Review Genre</i>, 2020.","short":"G. Schryen, G. Wagner, A. Benlian, Distinguishing Knowledge Impact from Citation Impact: A Methodology for Analysing Knowledge Impact for the Literature Review Genre, 2020.","ieee":"G. Schryen, G. Wagner, and A. Benlian, <i>Distinguishing Knowledge Impact from Citation Impact: A Methodology for Analysing Knowledge Impact for the Literature Review Genre</i>. 2020.","apa":"Schryen, G., Wagner, G., &#38; Benlian, A. (2020). <i>Distinguishing Knowledge Impact from Citation Impact: A Methodology for Analysing Knowledge Impact for the Literature Review Genre</i>."},"abstract":[{"lang":"eng","text":"The scientific impact of research papers is multi-dimensional and can be determined quantitatively by means of citation analysis and qualitatively by means of content analysis. Accounting for the widely acknowledged limitations of pure citation analysis, we adopt a knowledge-based perspective on scientific impact to develop a methodology for content-based citation analysis which allows determining how papers have enabled knowledge development in subsequent research (knowledge impact). As knowledge development differs between research genres, we develop a new knowledgebased citation analysis methodology for the genre of standalone literature reviews (LRs). We apply the suggested methodology to the IS business value domain by manually coding 22 LRs and 1,228 citing papers (CPs) and show that the results challenge the assumption that citations indicate knowledge impact. We derive implications for distinguishing knowledge impact from citation impact in the LR genre. Finally, we develop recommendations for authors of LRs, scientific evaluation committees and editorial boards of journals how to apply and benefit from the suggested methodology, and we discuss its efficiency and automatization."}],"file":[{"creator":"hsiemes","date_created":"2020-05-19T15:09:28Z","relation":"main_file","date_updated":"2020-05-19T15:09:28Z","file_name":"SSRN-id3581789.pdf","file_size":487351,"access_level":"open_access","file_id":"17020","content_type":"application/pdf"}],"date_created":"2020-05-19T15:12:33Z","type":"working_paper","keyword":["Scientific impact","knowledge impact","content-based citation analysis","methodology"],"oa":"1","department":[{"_id":"277"}]},{"conference":{"location":"Melbourne, Australia","name":"2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGRID)"},"status":"public","user_id":"63288","ddc":["000"],"_id":"17082","publisher":"IEEE Computer Society","project":[{"name":"SFB 901 - Project Area C","_id":"4"},{"_id":"16","name":"SFB 901 - Subproject C4"},{"name":"SFB 901","_id":"1"}],"citation":{"ieee":"A. Hasnain and H. Karl, “Coflow Scheduling with Performance Guarantees for Data Center Applications,” in <i>2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGRID)</i>, Melbourne, Australia, 2020.","apa":"Hasnain, A., &#38; Karl, H. (2020). Coflow Scheduling with Performance Guarantees for Data Center Applications. In <i>2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGRID)</i>. Melbourne, Australia: IEEE Computer Society. <a href=\"https://doi.org/10.1109/CCGrid49817.2020.00010\">https://doi.org/10.1109/CCGrid49817.2020.00010</a>","short":"A. Hasnain, H. Karl, in: 2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGRID), IEEE Computer Society, 2020.","chicago":"Hasnain, Asif, and Holger Karl. “Coflow Scheduling with Performance Guarantees for Data Center Applications.” In <i>2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGRID)</i>. IEEE Computer Society, 2020. <a href=\"https://doi.org/10.1109/CCGrid49817.2020.00010\">https://doi.org/10.1109/CCGrid49817.2020.00010</a>.","mla":"Hasnain, Asif, and Holger Karl. “Coflow Scheduling with Performance Guarantees for Data Center Applications.” <i>2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGRID)</i>, IEEE Computer Society, 2020, doi:<a href=\"https://doi.org/10.1109/CCGrid49817.2020.00010\">https://doi.org/10.1109/CCGrid49817.2020.00010</a>.","bibtex":"@inproceedings{Hasnain_Karl_2020, title={Coflow Scheduling with Performance Guarantees for Data Center Applications}, DOI={<a href=\"https://doi.org/10.1109/CCGrid49817.2020.00010\">https://doi.org/10.1109/CCGrid49817.2020.00010</a>}, booktitle={2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGRID)}, publisher={IEEE Computer Society}, author={Hasnain, Asif and Karl, Holger}, year={2020} }","ama":"Hasnain A, Karl H. Coflow Scheduling with Performance Guarantees for Data Center Applications. In: <i>2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGRID)</i>. IEEE Computer Society; 2020. doi:<a href=\"https://doi.org/10.1109/CCGrid49817.2020.00010\">https://doi.org/10.1109/CCGrid49817.2020.00010</a>"},"publication_status":"published","date_updated":"2022-01-06T06:53:04Z","author":[{"id":"63288","last_name":"Hasnain","first_name":"Asif","full_name":"Hasnain, Asif"},{"full_name":"Karl, Holger","last_name":"Karl","first_name":"Holger","id":"126"}],"year":"2020","title":"Coflow Scheduling with Performance Guarantees for Data Center Applications","doi":"https://doi.org/10.1109/CCGrid49817.2020.00010","language":[{"iso":"eng"}],"main_file_link":[{"url":"https://ieeexplore.ieee.org/abstract/document/9139642"}],"abstract":[{"lang":"eng","text":"Data-parallel applications run on cluster of servers in a datacenter and their communication triggers correlated resource demand on multiple links that can be abstracted as coflow. They often desire predictable network performance, which can be passed to network via coflow abstraction for application-aware network scheduling. In this paper, we propose a heuristic and an optimization algorithm for predictable network performance such that they guarantee coflows completion within their deadlines. The algorithms also ensure high network utilization, i.e., it's work-conserving, and avoids starvation of coflows. We evaluate both algorithms via trace-driven simulation and show that they admit 1.1x more coflows than the Varys scheme while meeting their deadlines."}],"publication":"2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGRID)","department":[{"_id":"75"}],"keyword":["Coflow","Scheduling","Deadlines","Data centers"],"type":"conference","date_created":"2020-06-06T07:40:45Z"},{"author":[{"first_name":"Oliver","last_name":"Schütze","full_name":"Schütze, Oliver"},{"last_name":"Cuate","first_name":"Oliver","full_name":"Cuate, Oliver"},{"full_name":"Martín, Adanay","last_name":"Martín","first_name":"Adanay"},{"full_name":"Peitz, Sebastian","first_name":"Sebastian","orcid":"https://orcid.org/0000-0002-3389-793X","last_name":"Peitz","id":"47427"},{"full_name":"Dellnitz, Michael","first_name":"Michael","last_name":"Dellnitz"}],"publication_identifier":{"issn":["0305-215X","1029-0273"]},"year":"2020","title":"Pareto Explorer: a global/local exploration tool for many-objective optimization problems","article_type":"original","intvolume":"        52","publication_status":"published","date_updated":"2022-01-06T06:50:46Z","language":[{"iso":"eng"}],"doi":"10.1080/0305215x.2019.1617286","publication":"Engineering Optimization","issue":"5","abstract":[{"text":"Multi-objective optimization is an active field of research that has many applications. Owing to its success and because decision-making processes are becoming more and more complex, there is a recent trend for incorporating many objectives into such problems. The challenge with such problems, however, is that the dimensions of the solution sets—the so-called Pareto sets and fronts—grow with the number of objectives. It is thus no longer possible to compute or to approximate the entire solution set of a given problem that contains many (e.g. more than three) objectives. On the other hand, the computation of single solutions (e.g. via scalarization methods) leads to unsatisfying results in many cases, even if user preferences are incorporated. In this article, the Pareto Explorer tool is presented—a global/local exploration tool for the treatment of many-objective optimization problems (MaOPs). In the first step, a solution of the problem is computed via a global search algorithm that ideally already includes user preferences. In the second step, a local search along the Pareto set/front of the given MaOP is performed in user specified directions. For this, several continuation-like procedures are proposed that can incorporate preferences defined in decision, objective, or in weight space. The applicability and usefulness of Pareto Explorer is demonstrated on benchmark problems as well as on an application from industrial laundry design.","lang":"eng"}],"date_created":"2019-07-10T08:14:39Z","department":[{"_id":"101"}],"type":"journal_article","status":"public","_id":"10596","page":"832-855","volume":52,"user_id":"47427","citation":{"chicago":"Schütze, Oliver, Oliver Cuate, Adanay Martín, Sebastian Peitz, and Michael Dellnitz. “Pareto Explorer: A Global/Local Exploration Tool for Many-Objective Optimization Problems.” <i>Engineering Optimization</i> 52, no. 5 (2020): 832–55. <a href=\"https://doi.org/10.1080/0305215x.2019.1617286\">https://doi.org/10.1080/0305215x.2019.1617286</a>.","short":"O. Schütze, O. Cuate, A. Martín, S. Peitz, M. Dellnitz, Engineering Optimization 52 (2020) 832–855.","apa":"Schütze, O., Cuate, O., Martín, A., Peitz, S., &#38; Dellnitz, M. (2020). Pareto Explorer: a global/local exploration tool for many-objective optimization problems. <i>Engineering Optimization</i>, <i>52</i>(5), 832–855. <a href=\"https://doi.org/10.1080/0305215x.2019.1617286\">https://doi.org/10.1080/0305215x.2019.1617286</a>","ieee":"O. Schütze, O. Cuate, A. Martín, S. Peitz, and M. Dellnitz, “Pareto Explorer: a global/local exploration tool for many-objective optimization problems,” <i>Engineering Optimization</i>, vol. 52, no. 5, pp. 832–855, 2020.","ama":"Schütze O, Cuate O, Martín A, Peitz S, Dellnitz M. Pareto Explorer: a global/local exploration tool for many-objective optimization problems. <i>Engineering Optimization</i>. 2020;52(5):832-855. doi:<a href=\"https://doi.org/10.1080/0305215x.2019.1617286\">10.1080/0305215x.2019.1617286</a>","bibtex":"@article{Schütze_Cuate_Martín_Peitz_Dellnitz_2020, title={Pareto Explorer: a global/local exploration tool for many-objective optimization problems}, volume={52}, DOI={<a href=\"https://doi.org/10.1080/0305215x.2019.1617286\">10.1080/0305215x.2019.1617286</a>}, number={5}, journal={Engineering Optimization}, author={Schütze, Oliver and Cuate, Oliver and Martín, Adanay and Peitz, Sebastian and Dellnitz, Michael}, year={2020}, pages={832–855} }","mla":"Schütze, Oliver, et al. “Pareto Explorer: A Global/Local Exploration Tool for Many-Objective Optimization Problems.” <i>Engineering Optimization</i>, vol. 52, no. 5, 2020, pp. 832–55, doi:<a href=\"https://doi.org/10.1080/0305215x.2019.1617286\">10.1080/0305215x.2019.1617286</a>."}},{"_id":"15628","language":[{"iso":"eng"}],"article_number":"201910208","doi":"10.1073/pnas.1910208117","user_id":"40778","publication_identifier":{"issn":["0027-8424","1091-6490"]},"author":[{"first_name":"Xiuling","last_name":"Xu","full_name":"Xu, Xiuling"},{"last_name":"Port","first_name":"Astrid","full_name":"Port, Astrid"},{"full_name":"Wiebeler, Christian","last_name":"Wiebeler","first_name":"Christian"},{"full_name":"Zhao, Kai-Hong","last_name":"Zhao","first_name":"Kai-Hong"},{"full_name":"Schapiro, Igor","last_name":"Schapiro","first_name":"Igor"},{"last_name":"Gärtner","first_name":"Wolfgang","full_name":"Gärtner, Wolfgang"}],"year":"2020","title":"Structural Elements Regulating the Photochromicity in a Cyanobacteriochrome","status":"public","date_updated":"2022-01-06T06:52:30Z","publication_status":"published","date_created":"2020-01-23T08:16:24Z","type":"journal_article","citation":{"mla":"Xu, Xiuling, et al. “Structural Elements Regulating the Photochromicity in a Cyanobacteriochrome.” <i>Proceedings of the National Academy of Sciences</i>, 201910208, 2020, doi:<a href=\"https://doi.org/10.1073/pnas.1910208117\">10.1073/pnas.1910208117</a>.","bibtex":"@article{Xu_Port_Wiebeler_Zhao_Schapiro_Gärtner_2020, title={Structural Elements Regulating the Photochromicity in a Cyanobacteriochrome}, DOI={<a href=\"https://doi.org/10.1073/pnas.1910208117\">10.1073/pnas.1910208117</a>}, number={201910208}, journal={Proceedings of the National Academy of Sciences}, author={Xu, Xiuling and Port, Astrid and Wiebeler, Christian and Zhao, Kai-Hong and Schapiro, Igor and Gärtner, Wolfgang}, year={2020} }","ama":"Xu X, Port A, Wiebeler C, Zhao K-H, Schapiro I, Gärtner W. Structural Elements Regulating the Photochromicity in a Cyanobacteriochrome. <i>Proceedings of the National Academy of Sciences</i>. 2020. doi:<a href=\"https://doi.org/10.1073/pnas.1910208117\">10.1073/pnas.1910208117</a>","ieee":"X. Xu, A. Port, C. Wiebeler, K.-H. Zhao, I. Schapiro, and W. Gärtner, “Structural Elements Regulating the Photochromicity in a Cyanobacteriochrome,” <i>Proceedings of the National Academy of Sciences</i>, 2020.","apa":"Xu, X., Port, A., Wiebeler, C., Zhao, K.-H., Schapiro, I., &#38; Gärtner, W. (2020). Structural Elements Regulating the Photochromicity in a Cyanobacteriochrome. <i>Proceedings of the National Academy of Sciences</i>. <a href=\"https://doi.org/10.1073/pnas.1910208117\">https://doi.org/10.1073/pnas.1910208117</a>","short":"X. Xu, A. Port, C. Wiebeler, K.-H. Zhao, I. Schapiro, W. Gärtner, Proceedings of the National Academy of Sciences (2020).","chicago":"Xu, Xiuling, Astrid Port, Christian Wiebeler, Kai-Hong Zhao, Igor Schapiro, and Wolfgang Gärtner. “Structural Elements Regulating the Photochromicity in a Cyanobacteriochrome.” <i>Proceedings of the National Academy of Sciences</i>, 2020. <a href=\"https://doi.org/10.1073/pnas.1910208117\">https://doi.org/10.1073/pnas.1910208117</a>."},"publication":"Proceedings of the National Academy of Sciences","project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"abstract":[{"text":"<jats:p>The three-dimensional (3D) crystal structures of the GAF3 domain of cyanobacteriochrome Slr1393 (<jats:italic>Synechocystis</jats:italic> PCC6803) carrying a phycocyanobilin chromophore could be solved in both 15-<jats:italic>Z</jats:italic> dark-adapted state, Pr, λ<jats:sub>max</jats:sub> = 649 nm, and 15-<jats:italic>E</jats:italic> photoproduct, Pg, λ<jats:sub>max</jats:sub> = 536 nm (resolution, 1.6 and 1.86 Å, respectively). The structural data allowed identifying the large spectral shift of the Pr-to-Pg conversion as resulting from an out-of-plane rotation of the chromophore’s peripheral rings and an outward movement of a short helix formed from a formerly unstructured loop. In addition, a third structure (2.1-Å resolution) starting from the photoproduct crystals allowed identification of elements that regulate the absorption maxima. In this peculiar form, generated during X-ray exposition, protein and chromophore conformation still resemble the photoproduct state, except for the D-ring already in 15-<jats:italic>Z</jats:italic> configuration and tilted out of plane akin the dark state. Due to its formation from the photoproduct, it might be considered an early conformational change initiating the parental state-recovering photocycle. The high quality and the distinct features of the three forms allowed for applying quantum-chemical calculations in the framework of multiscale modeling to rationalize the absorption maxima changes. A systematic analysis of the PCB chromophore in the presence and absence of the protein environment showed that the direct electrostatic effect is negligible on the spectral tuning. However, the protein forces the outer pyrrole rings of the chromophore to deviate from coplanarity, which is identified as the dominating factor for the color regulation.</jats:p>","lang":"eng"}]},{"has_accepted_license":"1","status":"public","volume":287,"ddc":["000"],"user_id":"61579","publisher":"Elsevier","_id":"15022","page":"1 - 18","citation":{"mla":"Schryen, Guido. “Parallel Computational Optimization in Operations Research: A New Integrative Framework, Literature Review and Research Directions.” <i>European Journal of Operational Research</i>, vol. 287, no. 1, Elsevier, 2020, pp. 1–18.","ama":"Schryen G. Parallel computational optimization in operations research: A new integrative framework, literature review and research directions. <i>European Journal of Operational Research</i>. 2020;287(1):1-18.","bibtex":"@article{Schryen_2020, title={Parallel computational optimization in operations research: A new integrative framework, literature review and research directions}, volume={287}, number={1}, journal={European Journal of Operational Research}, publisher={Elsevier}, author={Schryen, Guido}, year={2020}, pages={1–18} }","apa":"Schryen, G. (2020). Parallel computational optimization in operations research: A new integrative framework, literature review and research directions. <i>European Journal of Operational Research</i>, <i>287</i>(1), 1–18.","ieee":"G. Schryen, “Parallel computational optimization in operations research: A new integrative framework, literature review and research directions,” <i>European Journal of Operational Research</i>, vol. 287, no. 1, pp. 1–18, 2020.","chicago":"Schryen, Guido. “Parallel Computational Optimization in Operations Research: A New Integrative Framework, Literature Review and Research Directions.” <i>European Journal of Operational Research</i> 287, no. 1 (2020): 1–18.","short":"G. Schryen, European Journal of Operational Research 287 (2020) 1–18."},"file_date_updated":"2020-03-05T10:37:02Z","oa":"1","intvolume":"       287","date_updated":"2022-01-06T06:52:15Z","author":[{"id":"72850","full_name":"Schryen, Guido","first_name":"Guido","last_name":"Schryen"}],"title":"Parallel computational optimization in operations research: A new integrative framework, literature review and research directions","year":"2020","language":[{"iso":"eng"}],"publication":"European Journal of Operational Research","issue":"1","department":[{"_id":"277"}],"type":"journal_article","date_created":"2019-11-18T11:11:00Z","file":[{"creator":"hsiemes","date_created":"2019-11-18T11:11:56Z","relation":"main_file","date_updated":"2020-03-05T10:37:02Z","file_name":"LR - OR and parallelization.pdf","file_size":832170,"access_level":"open_access","file_id":"15023","content_type":"application/pdf"}]},{"date_updated":"2022-01-06T06:52:45Z","publication_status":"published","conference":{"location":"Beijing, China","name":"ACM Great Lakes Symposium on VLSI (GLSVLSI) 2020"},"author":[{"id":"64665","full_name":"Awais, Muhammad","first_name":"Muhammad","orcid":"https://orcid.org/0000-0003-4148-2969","last_name":"Awais"},{"full_name":"Ghasemzadeh Mohammadi, Hassan","first_name":"Hassan","last_name":"Ghasemzadeh Mohammadi","id":"61186"},{"full_name":"Platzner, Marco","first_name":"Marco","last_name":"Platzner","id":"398"}],"status":"public","title":"A Hybrid Synthesis Methodology for Approximate Circuits","year":"2020","doi":"10.1145/3386263.3406952","user_id":"64665","_id":"16213","publisher":"ACM","language":[{"iso":"eng"}],"page":"421-426","abstract":[{"lang":"eng","text":"Automated synthesis of approximate circuits via functional approximations is of prominent importance to provide efficiency in energy, runtime, and chip area required to execute an application. Approximate circuits are usually obtained either through analytical approximation methods leveraging approximate transformations such as bit-width scaling or via iterative search-based optimization methods when a library of approximate components, e.g., approximate adders and multipliers, is available. For the latter, exploring the extremely large design space is challenging in terms of both computations and quality of results. While the combination of both methods can create more room for further approximations, the \\textit{Design Space Exploration}~(DSE) becomes a crucial issue. In this paper, we present such a hybrid synthesis methodology that applies a low-cost analytical method followed by parallel stochastic search-based optimization. We address the DSE challenge through efficient pruning of the design space and skipping unnecessary expensive testing and/or verification steps. The experimental results reveal up to 10.57x area savings in comparison with both purely analytical or search-based approaches. "}],"citation":{"short":"M. Awais, H. Ghasemzadeh Mohammadi, M. Platzner, in: Proceedings of the 30th ACM Great Lakes Symposium on VLSI (GLSVLSI) 2020, ACM, 2020, pp. 421–426.","chicago":"Awais, Muhammad, Hassan Ghasemzadeh Mohammadi, and Marco Platzner. “A Hybrid Synthesis Methodology for Approximate Circuits.” In <i>Proceedings of the 30th ACM Great Lakes Symposium on VLSI (GLSVLSI) 2020</i>, 421–26. ACM, 2020. <a href=\"https://doi.org/10.1145/3386263.3406952\">https://doi.org/10.1145/3386263.3406952</a>.","ieee":"M. Awais, H. Ghasemzadeh Mohammadi, and M. Platzner, “A Hybrid Synthesis Methodology for Approximate Circuits,” in <i>Proceedings of the 30th ACM Great Lakes Symposium on VLSI (GLSVLSI) 2020</i>, Beijing, China, 2020, pp. 421–426.","apa":"Awais, M., Ghasemzadeh Mohammadi, H., &#38; Platzner, M. (2020). A Hybrid Synthesis Methodology for Approximate Circuits. In <i>Proceedings of the 30th ACM Great Lakes Symposium on VLSI (GLSVLSI) 2020</i> (pp. 421–426). Beijing, China: ACM. <a href=\"https://doi.org/10.1145/3386263.3406952\">https://doi.org/10.1145/3386263.3406952</a>","bibtex":"@inproceedings{Awais_Ghasemzadeh Mohammadi_Platzner_2020, title={A Hybrid Synthesis Methodology for Approximate Circuits}, DOI={<a href=\"https://doi.org/10.1145/3386263.3406952\">10.1145/3386263.3406952</a>}, booktitle={Proceedings of the 30th ACM Great Lakes Symposium on VLSI (GLSVLSI) 2020}, publisher={ACM}, author={Awais, Muhammad and Ghasemzadeh Mohammadi, Hassan and Platzner, Marco}, year={2020}, pages={421–426} }","ama":"Awais M, Ghasemzadeh Mohammadi H, Platzner M. A Hybrid Synthesis Methodology for Approximate Circuits. In: <i>Proceedings of the 30th ACM Great Lakes Symposium on VLSI (GLSVLSI) 2020</i>. ACM; 2020:421-426. doi:<a href=\"https://doi.org/10.1145/3386263.3406952\">10.1145/3386263.3406952</a>","mla":"Awais, Muhammad, et al. “A Hybrid Synthesis Methodology for Approximate Circuits.” <i>Proceedings of the 30th ACM Great Lakes Symposium on VLSI (GLSVLSI) 2020</i>, ACM, 2020, pp. 421–26, doi:<a href=\"https://doi.org/10.1145/3386263.3406952\">10.1145/3386263.3406952</a>."},"publication":"Proceedings of the 30th ACM Great Lakes Symposium on VLSI (GLSVLSI) 2020","department":[{"_id":"78"}],"type":"conference","date_created":"2020-03-02T15:49:38Z"},{"year":"2020","title":"Machine Learning for Dynamic Resource Allocation in Network Function Virtualization","author":[{"id":"35343","full_name":"Schneider, Stefan Balthasar","orcid":"0000-0001-8210-4011","last_name":"Schneider","first_name":"Stefan Balthasar"},{"full_name":"Satheeschandran, Narayanan Puthenpurayil","first_name":"Narayanan Puthenpurayil","last_name":"Satheeschandran"},{"id":"13271","first_name":"Manuel","last_name":"Peuster","full_name":"Peuster, Manuel"},{"id":"126","full_name":"Karl, Holger","first_name":"Holger","last_name":"Karl"}],"date_updated":"2022-01-06T06:52:46Z","language":[{"iso":"eng"}],"publication":"IEEE Conference on Network Softwarization (NetSoft)","abstract":[{"text":"Network function virtualization (NFV) proposes\r\nto replace physical middleboxes with more flexible virtual\r\nnetwork functions (VNFs). To dynamically adjust to everchanging\r\ntraffic demands, VNFs have to be instantiated and\r\ntheir allocated resources have to be adjusted on demand.\r\nDeciding the amount of allocated resources is non-trivial.\r\nExisting optimization approaches often assume fixed resource\r\nrequirements for each VNF instance. However, this can easily\r\nlead to either waste of resources or bad service quality if too\r\nmany or too few resources are allocated.\r\n\r\nTo solve this problem, we train machine learning models\r\non real VNF data, containing measurements of performance\r\nand resource requirements. For each VNF, the trained models\r\ncan then accurately predict the required resources to handle\r\na certain traffic load. We integrate these machine learning\r\nmodels into an algorithm for joint VNF scaling and placement\r\nand evaluate their impact on resulting VNF placements. Our\r\nevaluation based on real-world data shows that using suitable\r\nmachine learning models effectively avoids over- and underallocation\r\nof resources, leading to up to 12 times lower resource\r\nconsumption and better service quality with up to 4.5 times\r\nlower total delay than using standard fixed resource allocation.","lang":"eng"}],"file":[{"date_created":"2020-03-03T11:42:16Z","creator":"stschn","file_id":"16220","content_type":"application/pdf","relation":"main_file","date_updated":"2020-03-03T11:42:16Z","file_name":"ris_preprint.pdf","access_level":"open_access","file_size":476590}],"date_created":"2020-03-03T11:42:22Z","type":"conference","department":[{"_id":"75"}],"status":"public","conference":{"location":"Ghent, Belgium","name":"IEEE Conference on Network Softwarization (NetSoft)"},"has_accepted_license":"1","_id":"16219","publisher":"IEEE","ddc":["000"],"user_id":"35343","file_date_updated":"2020-03-03T11:42:16Z","citation":{"apa":"Schneider, S. B., Satheeschandran, N. P., Peuster, M., &#38; Karl, H. (2020). Machine Learning for Dynamic Resource Allocation in Network Function Virtualization. In <i>IEEE Conference on Network Softwarization (NetSoft)</i>. Ghent, Belgium: IEEE.","ieee":"S. B. Schneider, N. P. Satheeschandran, M. Peuster, and H. Karl, “Machine Learning for Dynamic Resource Allocation in Network Function Virtualization,” in <i>IEEE Conference on Network Softwarization (NetSoft)</i>, Ghent, Belgium, 2020.","short":"S.B. Schneider, N.P. Satheeschandran, M. Peuster, H. Karl, in: IEEE Conference on Network Softwarization (NetSoft), IEEE, 2020.","chicago":"Schneider, Stefan Balthasar, Narayanan Puthenpurayil Satheeschandran, Manuel Peuster, and Holger Karl. “Machine Learning for Dynamic Resource Allocation in Network Function Virtualization.” In <i>IEEE Conference on Network Softwarization (NetSoft)</i>. IEEE, 2020.","mla":"Schneider, Stefan Balthasar, et al. “Machine Learning for Dynamic Resource Allocation in Network Function Virtualization.” <i>IEEE Conference on Network Softwarization (NetSoft)</i>, IEEE, 2020.","ama":"Schneider SB, Satheeschandran NP, Peuster M, Karl H. Machine Learning for Dynamic Resource Allocation in Network Function Virtualization. In: <i>IEEE Conference on Network Softwarization (NetSoft)</i>. IEEE; 2020.","bibtex":"@inproceedings{Schneider_Satheeschandran_Peuster_Karl_2020, title={Machine Learning for Dynamic Resource Allocation in Network Function Virtualization}, booktitle={IEEE Conference on Network Softwarization (NetSoft)}, publisher={IEEE}, author={Schneider, Stefan Balthasar and Satheeschandran, Narayanan Puthenpurayil and Peuster, Manuel and Karl, Holger}, year={2020} }"},"project":[{"_id":"28","grant_number":"761493","name":"5G Development and validation platform for global industry-specific network services and Apps"},{"_id":"1","name":"SFB 901"},{"_id":"4","name":"SFB 901 - Project Area C"},{"_id":"16","name":"SFB 901 - Subproject C4"}],"oa":"1"},{"abstract":[{"lang":"eng","text":"In the development of model predictive controllers for PDE-constrained problems, the use of reduced order models is essential to enable real-time applicability. Besides local linearization approaches, proper orthogonal decomposition (POD) has been most widely used in the past in order to derive such models. Due to the huge advances concerning both theory as well as the numerical approximation, a very promising alternative based on the Koopman operator has recently emerged. In this chapter, we present two control strategies for model predictive control of nonlinear PDEs using data-efficient approximations of the Koopman operator. In the first one, the dynamic control system is replaced by a small number of autonomous systems with different yet constant inputs. The control problem is consequently transformed into a switching problem. In the second approach, a bilinear surrogate model is obtained via a convex combination of these autonomous systems. Using a recent convergence result for extended dynamic mode decomposition (EDMD), convergence of the reduced objective function can be shown. We study the properties of these two strategies with respect to solution quality, data requirements, and complexity of the resulting optimization problem using the 1-dimensional Burgers equation and the 2-dimensional Navier–Stokes equations as examples. Finally, an extension for online adaptivity is presented."}],"publication":"Lecture Notes in Control and Information Sciences","type":"book_chapter","department":[{"_id":"101"}],"date_created":"2020-03-13T12:38:52Z","date_updated":"2022-01-06T06:52:48Z","publication_status":"published","intvolume":"       484","title":"Feedback Control of Nonlinear PDEs Using Data-Efficient Reduced Order Models Based on the Koopman Operator","year":"2020","publication_identifier":{"issn":["0170-8643","1610-7411"],"isbn":["9783030357122","9783030357139"]},"author":[{"full_name":"Peitz, Sebastian","first_name":"Sebastian","last_name":"Peitz","orcid":"https://orcid.org/0000-0002-3389-793X","id":"47427"},{"full_name":"Klus, Stefan","last_name":"Klus","first_name":"Stefan"}],"doi":"10.1007/978-3-030-35713-9_10","series_title":"Lecture Notes in Control and Information Sciences","language":[{"iso":"eng"}],"citation":{"chicago":"Peitz, Sebastian, and Stefan Klus. “Feedback Control of Nonlinear PDEs Using Data-Efficient Reduced Order Models Based on the Koopman Operator.” In <i>Lecture Notes in Control and Information Sciences</i>, 484:257–82. Lecture Notes in Control and Information Sciences. Cham: Springer, 2020. <a href=\"https://doi.org/10.1007/978-3-030-35713-9_10\">https://doi.org/10.1007/978-3-030-35713-9_10</a>.","short":"S. Peitz, S. Klus, in: Lecture Notes in Control and Information Sciences, Springer, Cham, 2020, pp. 257–282.","ieee":"S. Peitz and S. Klus, “Feedback Control of Nonlinear PDEs Using Data-Efficient Reduced Order Models Based on the Koopman Operator,” in <i>Lecture Notes in Control and Information Sciences</i>, vol. 484, Cham: Springer, 2020, pp. 257–282.","apa":"Peitz, S., &#38; Klus, S. (2020). Feedback Control of Nonlinear PDEs Using Data-Efficient Reduced Order Models Based on the Koopman Operator. In <i>Lecture Notes in Control and Information Sciences</i> (Vol. 484, pp. 257–282). Cham: Springer. <a href=\"https://doi.org/10.1007/978-3-030-35713-9_10\">https://doi.org/10.1007/978-3-030-35713-9_10</a>","bibtex":"@inbook{Peitz_Klus_2020, place={Cham}, series={Lecture Notes in Control and Information Sciences}, title={Feedback Control of Nonlinear PDEs Using Data-Efficient Reduced Order Models Based on the Koopman Operator}, volume={484}, DOI={<a href=\"https://doi.org/10.1007/978-3-030-35713-9_10\">10.1007/978-3-030-35713-9_10</a>}, booktitle={Lecture Notes in Control and Information Sciences}, publisher={Springer}, author={Peitz, Sebastian and Klus, Stefan}, year={2020}, pages={257–282}, collection={Lecture Notes in Control and Information Sciences} }","ama":"Peitz S, Klus S. Feedback Control of Nonlinear PDEs Using Data-Efficient Reduced Order Models Based on the Koopman Operator. In: <i>Lecture Notes in Control and Information Sciences</i>. Vol 484. Lecture Notes in Control and Information Sciences. Cham: Springer; 2020:257-282. doi:<a href=\"https://doi.org/10.1007/978-3-030-35713-9_10\">10.1007/978-3-030-35713-9_10</a>","mla":"Peitz, Sebastian, and Stefan Klus. “Feedback Control of Nonlinear PDEs Using Data-Efficient Reduced Order Models Based on the Koopman Operator.” <i>Lecture Notes in Control and Information Sciences</i>, vol. 484, Springer, 2020, pp. 257–82, doi:<a href=\"https://doi.org/10.1007/978-3-030-35713-9_10\">10.1007/978-3-030-35713-9_10</a>."},"place":"Cham","status":"public","user_id":"47427","volume":484,"page":"257-282","_id":"16289","publisher":"Springer"},{"department":[{"_id":"52"}],"type":"conference","keyword":["Multilevel converters","Resonant converter","High voltage power converters","ZVS Converters","Combination MMC LLC"],"date_created":"2022-02-21T16:33:14Z","abstract":[{"text":"In this paper, a full-bridge modular multilevel converter (MMC) and two half-bridge-based MMCs are evaluated for high-current low-voltage e.g. 100 - 400V DC-applications such as electrolysis, arc welding or datacenters with DC-power distribution. Usually, modular multilevel converters are used in high-voltage DC-applications (HVDC) in the multiple kV-range, but to meet the needs of a high-current demand at low output voltage levels, the modular converter concept requires adaptations. In the proposed concept, the MMC is used to step-down the three-phase medium-voltage of 10kV, and provide up to 1 MW to the load. Therefore, each module is extended by an LLC resonant converter to adapt to the specific electrolyzers DC-voltage range of 142 - 220V and to provide galvanic isolation. The six-arm MMC converter with half-bridge modules can be simplified and optimized by removing three arms, and thus halving the number of modules. In addition, the module voltage ripple and capacitor losses are decreased by 22% and 30% respectively. By rearranging the components of the half-bridge MMC to build a MMC consisting of grid-side full-bridge modules, the voltage ripple is further reduced by 78% and capacitor losses by 64%, while ensuring identical costs and volume for all MMCs. Finally, the LLC resonant converter is designed for the most efficient full-bridge MMC. The LLC can not operate at resonance with a fixed nominal module voltage of 770V because the output voltage is varying between 142 - 220V. By decreasing the module voltage down to 600V, additional points of operation can be operated in resonance, and the remaining are closer to resonance. The option to decrease the module voltage down to 600V, increases the number of required modules per arm from 12 to 15, which requires to balance the losses of the LLCs and the grid-side stages.","lang":"eng"}],"citation":{"apa":"Unruh, R., Schafmeister, F., &#38; Böcker, J. (2020). Evaluation of MMCs for High-Power Low-Voltage DC-Applications in Combination with the Module LLC-Design. <i>2020 22nd European Conference on Power Electronics and Applications (EPE’20 ECCE Europe)</i>. 22nd European Conference on Power Electronics and Applications (EPE’20 ECCE Europe), Lyon, France. <a href=\"https://doi.org/10.23919/epe20ecceeurope43536.2020.9215687\">https://doi.org/10.23919/epe20ecceeurope43536.2020.9215687</a>","ieee":"R. Unruh, F. Schafmeister, and J. Böcker, “Evaluation of MMCs for High-Power Low-Voltage DC-Applications in Combination with the Module LLC-Design,” presented at the 22nd European Conference on Power Electronics and Applications (EPE’20 ECCE Europe), Lyon, France, 2020, doi: <a href=\"https://doi.org/10.23919/epe20ecceeurope43536.2020.9215687\">10.23919/epe20ecceeurope43536.2020.9215687</a>.","chicago":"Unruh, Roland, Frank Schafmeister, and Joachim Böcker. “Evaluation of MMCs for High-Power Low-Voltage DC-Applications in Combination with the Module LLC-Design.” In <i>2020 22nd European Conference on Power Electronics and Applications (EPE’20 ECCE Europe)</i>. IEEE, 2020. <a href=\"https://doi.org/10.23919/epe20ecceeurope43536.2020.9215687\">https://doi.org/10.23919/epe20ecceeurope43536.2020.9215687</a>.","short":"R. Unruh, F. Schafmeister, J. Böcker, in: 2020 22nd European Conference on Power Electronics and Applications (EPE’20 ECCE Europe), IEEE, 2020.","mla":"Unruh, Roland, et al. “Evaluation of MMCs for High-Power Low-Voltage DC-Applications in Combination with the Module LLC-Design.” <i>2020 22nd European Conference on Power Electronics and Applications (EPE’20 ECCE Europe)</i>, IEEE, 2020, doi:<a href=\"https://doi.org/10.23919/epe20ecceeurope43536.2020.9215687\">10.23919/epe20ecceeurope43536.2020.9215687</a>.","ama":"Unruh R, Schafmeister F, Böcker J. Evaluation of MMCs for High-Power Low-Voltage DC-Applications in Combination with the Module LLC-Design. In: <i>2020 22nd European Conference on Power Electronics and Applications (EPE’20 ECCE Europe)</i>. IEEE; 2020. doi:<a href=\"https://doi.org/10.23919/epe20ecceeurope43536.2020.9215687\">10.23919/epe20ecceeurope43536.2020.9215687</a>","bibtex":"@inproceedings{Unruh_Schafmeister_Böcker_2020, title={Evaluation of MMCs for High-Power Low-Voltage DC-Applications in Combination with the Module LLC-Design}, DOI={<a href=\"https://doi.org/10.23919/epe20ecceeurope43536.2020.9215687\">10.23919/epe20ecceeurope43536.2020.9215687</a>}, booktitle={2020 22nd European Conference on Power Electronics and Applications (EPE’20 ECCE Europe)}, publisher={IEEE}, author={Unruh, Roland and Schafmeister, Frank and Böcker, Joachim}, year={2020} }"},"publication":"2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)","doi":"10.23919/epe20ecceeurope43536.2020.9215687","user_id":"34289","_id":"29939","language":[{"iso":"eng"}],"publisher":"IEEE","main_file_link":[{"url":"https://ieeexplore.ieee.org/abstract/document/9215687"}],"date_updated":"2022-02-21T17:00:16Z","publication_status":"published","conference":{"end_date":"2020-09-11","location":"Lyon, France","name":"22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)","start_date":"2020-09-07"},"author":[{"last_name":"Unruh","first_name":"Roland","full_name":"Unruh, Roland","id":"34289"},{"id":"71291","first_name":"Frank","last_name":"Schafmeister","full_name":"Schafmeister, Frank"},{"full_name":"Böcker, Joachim","orcid":"0000-0002-8480-7295","last_name":"Böcker","first_name":"Joachim","id":"66"}],"status":"public","year":"2020","title":"Evaluation of MMCs for High-Power Low-Voltage DC-Applications in Combination with the Module LLC-Design"},{"year":"2020","title":"Towards a Scalable and Flexible Simulation and Testing Environment\n  Toolbox for Intelligent Microgrid Control","status":"public","author":[{"first_name":"Henrik","last_name":"Bode","full_name":"Bode, Henrik"},{"first_name":"Stefan","last_name":"Heid","full_name":"Heid, Stefan"},{"last_name":"Weber","first_name":"Daniel","full_name":"Weber, Daniel"},{"first_name":"Eyke","last_name":"Hüllermeier","full_name":"Hüllermeier, Eyke"},{"full_name":"Wallscheid, Oliver","first_name":"Oliver","last_name":"Wallscheid"}],"date_updated":"2022-02-28T08:14:53Z","_id":"21623","user_id":"40880","publication":"arXiv:2005.04869","citation":{"bibtex":"@article{Bode_Heid_Weber_Hüllermeier_Wallscheid_2020, title={Towards a Scalable and Flexible Simulation and Testing Environment   Toolbox for Intelligent Microgrid Control}, journal={arXiv:2005.04869}, author={Bode, Henrik and Heid, Stefan and Weber, Daniel and Hüllermeier, Eyke and Wallscheid, Oliver}, year={2020} }","ama":"Bode H, Heid S, Weber D, Hüllermeier E, Wallscheid O. Towards a Scalable and Flexible Simulation and Testing Environment   Toolbox for Intelligent Microgrid Control. <i>arXiv:200504869</i>. Published online 2020.","mla":"Bode, Henrik, et al. “Towards a Scalable and Flexible Simulation and Testing Environment  Toolbox for Intelligent Microgrid Control.” <i>ArXiv:2005.04869</i>, 2020.","short":"H. Bode, S. Heid, D. Weber, E. Hüllermeier, O. Wallscheid, ArXiv:2005.04869 (2020).","chicago":"Bode, Henrik, Stefan Heid, Daniel Weber, Eyke Hüllermeier, and Oliver Wallscheid. “Towards a Scalable and Flexible Simulation and Testing Environment  Toolbox for Intelligent Microgrid Control.” <i>ArXiv:2005.04869</i>, 2020.","ieee":"H. Bode, S. Heid, D. Weber, E. Hüllermeier, and O. Wallscheid, “Towards a Scalable and Flexible Simulation and Testing Environment   Toolbox for Intelligent Microgrid Control,” <i>arXiv:2005.04869</i>. 2020.","apa":"Bode, H., Heid, S., Weber, D., Hüllermeier, E., &#38; Wallscheid, O. (2020). Towards a Scalable and Flexible Simulation and Testing Environment   Toolbox for Intelligent Microgrid Control. In <i>arXiv:2005.04869</i>."},"abstract":[{"lang":"eng","text":"Micro- and smart grids (MSG) play an important role both for integrating\nrenewable energy sources in conventional electricity grids and for providing\npower supply in remote areas. Modern MSGs are largely driven by power\nelectronic converters due to their high efficiency and flexibility.\nNevertheless, controlling MSGs is a challenging task due to highest\nrequirements on energy availability, safety and voltage quality within a wide\nrange of different MSG topologies. This results in a high demand for\ncomprehensive testing of new control concepts during their development phase\nand comparisons with the state of the art in order to ensure their feasibility.\nThis applies in particular to data-driven control approaches from the field of\nreinforcement learning (RL), whose stability and operating behavior can hardly\nbe evaluated a priori. Therefore, the OpenModelica Microgrid Gym (OMG) package,\nan open-source software toolbox for the simulation and control optimization of\nMSGs, is proposed. It is capable of modeling and simulating arbitrary MSG\ntopologies and offers a Python-based interface for plug \\& play controller\ntesting. In particular, the standardized OpenAI Gym interface allows for easy\nRL-based controller integration. Besides the presentation of the OMG toolbox,\napplication examples are highlighted including safe Bayesian optimization for\nlow-level controller tuning."}],"date_created":"2021-04-14T10:29:08Z","type":"preprint"},{"page":"7593-7618","_id":"16297","language":[{"iso":"eng"}],"user_id":"15694","doi":"10.1002/rnc.5197","volume":"30(17)","year":"2020","title":"Explicit Multi-objective Model Predictive Control for Nonlinear Systems  Under Uncertainty","status":"public","author":[{"last_name":"Hernández Castellanos","first_name":"Carlos Ignacio","full_name":"Hernández Castellanos, Carlos Ignacio"},{"last_name":"Ober-Blöbaum","first_name":"Sina","full_name":"Ober-Blöbaum, Sina","id":"16494"},{"id":"47427","full_name":"Peitz, Sebastian","last_name":"Peitz","first_name":"Sebastian","orcid":"https://orcid.org/0000-0002-3389-793X"}],"date_updated":"2022-01-21T09:55:39Z","date_created":"2020-03-13T12:45:56Z","type":"journal_article","department":[{"_id":"101"}],"publication":"International Journal of Robust and Nonlinear Control","citation":{"mla":"Hernández Castellanos, Carlos Ignacio, et al. “Explicit Multi-Objective Model Predictive Control for Nonlinear Systems  Under Uncertainty.” <i>International Journal of Robust and Nonlinear Control</i>, vol. 30(17), 2020, pp. 7593–618, doi:<a href=\"https://doi.org/10.1002/rnc.5197\">10.1002/rnc.5197</a>.","ama":"Hernández Castellanos CI, Ober-Blöbaum S, Peitz S. Explicit Multi-objective Model Predictive Control for Nonlinear Systems  Under Uncertainty. <i>International Journal of Robust and Nonlinear Control</i>. 2020;30(17):7593-7618. doi:<a href=\"https://doi.org/10.1002/rnc.5197\">10.1002/rnc.5197</a>","bibtex":"@article{Hernández Castellanos_Ober-Blöbaum_Peitz_2020, title={Explicit Multi-objective Model Predictive Control for Nonlinear Systems  Under Uncertainty}, volume={30(17)}, DOI={<a href=\"https://doi.org/10.1002/rnc.5197\">10.1002/rnc.5197</a>}, journal={International Journal of Robust and Nonlinear Control}, author={Hernández Castellanos, Carlos Ignacio and Ober-Blöbaum, Sina and Peitz, Sebastian}, year={2020}, pages={7593–7618} }","apa":"Hernández Castellanos, C. I., Ober-Blöbaum, S., &#38; Peitz, S. (2020). Explicit Multi-objective Model Predictive Control for Nonlinear Systems  Under Uncertainty. <i>International Journal of Robust and Nonlinear Control</i>, <i>30(17)</i>, 7593–7618. <a href=\"https://doi.org/10.1002/rnc.5197\">https://doi.org/10.1002/rnc.5197</a>","ieee":"C. I. Hernández Castellanos, S. Ober-Blöbaum, and S. Peitz, “Explicit Multi-objective Model Predictive Control for Nonlinear Systems  Under Uncertainty,” <i>International Journal of Robust and Nonlinear Control</i>, vol. 30(17), pp. 7593–7618, 2020, doi: <a href=\"https://doi.org/10.1002/rnc.5197\">10.1002/rnc.5197</a>.","short":"C.I. Hernández Castellanos, S. Ober-Blöbaum, S. Peitz, International Journal of Robust and Nonlinear Control 30(17) (2020) 7593–7618.","chicago":"Hernández Castellanos, Carlos Ignacio, Sina Ober-Blöbaum, and Sebastian Peitz. “Explicit Multi-Objective Model Predictive Control for Nonlinear Systems  Under Uncertainty.” <i>International Journal of Robust and Nonlinear Control</i> 30(17) (2020): 7593–7618. <a href=\"https://doi.org/10.1002/rnc.5197\">https://doi.org/10.1002/rnc.5197</a>."},"abstract":[{"lang":"eng","text":"In real-world problems, uncertainties (e.g., errors in the measurement,\r\nprecision errors) often lead to poor performance of numerical algorithms when\r\nnot explicitly taken into account. This is also the case for control problems,\r\nwhere optimal solutions can degrade in quality or even become infeasible. Thus,\r\nthere is the need to design methods that can handle uncertainty. In this work,\r\nwe consider nonlinear multi-objective optimal control problems with uncertainty\r\non the initial conditions, and in particular their incorporation into a\r\nfeedback loop via model predictive control (MPC). In multi-objective optimal\r\ncontrol, an optimal compromise between multiple conflicting criteria has to be\r\nfound. For such problems, not much has been reported in terms of uncertainties.\r\nTo address this problem class, we design an offline/online framework to compute\r\nan approximation of efficient control strategies. This approach is closely\r\nrelated to explicit MPC for nonlinear systems, where the potentially expensive\r\noptimization problem is solved in an offline phase in order to enable fast\r\nsolutions in the online phase. In order to reduce the numerical cost of the\r\noffline phase, we exploit symmetries in the control problems. Furthermore, in\r\norder to ensure optimality of the solutions, we include an additional online\r\noptimization step, which is considerably cheaper than the original\r\nmulti-objective optimization problem. We test our framework on a car\r\nmaneuvering problem where safety and speed are the objectives. The\r\nmulti-objective framework allows for online adaptations of the desired\r\nobjective. Alternatively, an automatic scalarizing procedure yields very\r\nefficient feedback controls. Our results show that the method is capable of\r\ndesigning driving strategies that deal better with uncertainties in the initial\r\nconditions, which translates into potentially safer and faster driving\r\nstrategies."}]}]