[{"date_created":"2021-04-30T11:54:03Z","file":[{"creator":"fossie","date_created":"2021-04-30T11:57:14Z","date_updated":"2021-04-30T11:57:14Z","relation":"main_file","file_size":1963211,"access_level":"open_access","file_name":"oamex.pdf","content_type":"application/pdf","file_id":"21933"},{"file_size":7750006,"date_updated":"2021-04-30T11:59:16Z","embargo":"2022-05-01","relation":"main_file","content_type":"application/pdf","file_id":"21934","creator":"fossie","access_level":"local","file_name":"2021-04 Hammer - JOSA B - Resonant evanescent excitation of guides waves with high-order angular momentum.pdf","embargo_to":"open_access","date_created":"2021-04-30T11:59:16Z"}],"department":[{"_id":"61"},{"_id":"230"}],"type":"journal_article","keyword":["tet_topic_waveguides"],"publication":"Journal of the Optical Society of America B","issue":"5","abstract":[{"lang":"eng","text":"Gaussian-beam-like bundles of semi-guided waves propagating in a dielectric slab can excite modes with high-order optical angular momentum supported by a circular fiber. We consider a multimode step-index fiber with a high-index coating, where the waves in the slab are evanescently coupled to the modes of the fiber. Conditions for effective resonant interaction are identified. Based on a hybrid analytical–numerical coupled mode model, our simulations predict that substantial fractions of the input power can be focused into waves with specific orbital angular momentum, of excellent purity, with a clear distinction between degenerate modes with opposite vorticity."}],"language":[{"iso":"eng"}],"doi":"10.1364/josab.422731","publication_identifier":{"issn":["0740-3224","1520-8540"]},"author":[{"last_name":"Hammer","orcid":"0000-0002-6331-9348","first_name":"Manfred","full_name":"Hammer, Manfred","id":"48077"},{"last_name":"Ebers","first_name":"Lena","full_name":"Ebers, Lena","id":"40428"},{"id":"158","full_name":"Förstner, Jens","first_name":"Jens","orcid":"0000-0001-7059-9862","last_name":"Förstner"}],"title":"Resonant evanescent excitation of guided waves with high-order optical angular momentum","year":"2021","intvolume":"        38","publication_status":"published","date_updated":"2022-01-06T06:55:20Z","oa":"1","citation":{"apa":"Hammer, M., Ebers, L., &#38; Förstner, J. (2021). Resonant evanescent excitation of guided waves with high-order optical angular momentum. <i>Journal of the Optical Society of America B</i>, <i>38</i>(5), 1717. <a href=\"https://doi.org/10.1364/josab.422731\">https://doi.org/10.1364/josab.422731</a>","ieee":"M. Hammer, L. Ebers, and J. Förstner, “Resonant evanescent excitation of guided waves with high-order optical angular momentum,” <i>Journal of the Optical Society of America B</i>, vol. 38, no. 5, p. 1717, 2021.","short":"M. Hammer, L. Ebers, J. Förstner, Journal of the Optical Society of America B 38 (2021) 1717.","chicago":"Hammer, Manfred, Lena Ebers, and Jens Förstner. “Resonant Evanescent Excitation of Guided Waves with High-Order Optical Angular Momentum.” <i>Journal of the Optical Society of America B</i> 38, no. 5 (2021): 1717. <a href=\"https://doi.org/10.1364/josab.422731\">https://doi.org/10.1364/josab.422731</a>.","mla":"Hammer, Manfred, et al. “Resonant Evanescent Excitation of Guided Waves with High-Order Optical Angular Momentum.” <i>Journal of the Optical Society of America B</i>, vol. 38, no. 5, 2021, p. 1717, doi:<a href=\"https://doi.org/10.1364/josab.422731\">10.1364/josab.422731</a>.","ama":"Hammer M, Ebers L, Förstner J. Resonant evanescent excitation of guided waves with high-order optical angular momentum. <i>Journal of the Optical Society of America B</i>. 2021;38(5):1717. doi:<a href=\"https://doi.org/10.1364/josab.422731\">10.1364/josab.422731</a>","bibtex":"@article{Hammer_Ebers_Förstner_2021, title={Resonant evanescent excitation of guided waves with high-order optical angular momentum}, volume={38}, DOI={<a href=\"https://doi.org/10.1364/josab.422731\">10.1364/josab.422731</a>}, number={5}, journal={Journal of the Optical Society of America B}, author={Hammer, Manfred and Ebers, Lena and Förstner, Jens}, year={2021}, pages={1717} }"},"file_date_updated":"2021-04-30T11:59:16Z","project":[{"_id":"56","name":"TRR 142 - Project Area C"},{"name":"TRR 142","_id":"53"},{"name":"TRR 142 - Subproject C5","_id":"75"}],"_id":"21932","page":"1717","volume":38,"user_id":"158","ddc":["530"],"status":"public","has_accepted_license":"1"},{"date_created":"2020-04-27T09:11:22Z","type":"journal_article","department":[{"_id":"101"}],"publication":"Journal of Optimization Theory and Applications","abstract":[{"text":"In this article, we present an efficient descent method for locally Lipschitz\r\ncontinuous multiobjective optimization problems (MOPs). The method is realized\r\nby combining a theoretical result regarding the computation of descent\r\ndirections for nonsmooth MOPs with a practical method to approximate the\r\nsubdifferentials of the objective functions. We show convergence to points\r\nwhich satisfy a necessary condition for Pareto optimality. Using a set of test\r\nproblems, we compare our method to the multiobjective proximal bundle method by\r\nM\\\"akel\\\"a. The results indicate that our method is competitive while being\r\neasier to implement. While the number of objective function evaluations is\r\nlarger, the overall number of subgradient evaluations is lower. Finally, we\r\nshow that our method can be combined with a subdivision algorithm to compute\r\nentire Pareto sets of nonsmooth MOPs.","lang":"eng"}],"main_file_link":[{"open_access":"1","url":"https://link.springer.com/content/pdf/10.1007/s10957-020-01803-w.pdf"}],"language":[{"iso":"eng"}],"doi":"10.1007/s10957-020-01803-w","title":"An efficient descent method for locally Lipschitz multiobjective optimization problems","year":"2021","author":[{"id":"32643","last_name":"Gebken","first_name":"Bennet","full_name":"Gebken, Bennet"},{"id":"47427","full_name":"Peitz, Sebastian","first_name":"Sebastian","orcid":"0000-0002-3389-793X","last_name":"Peitz"}],"publication_status":"published","date_updated":"2022-01-06T06:52:57Z","intvolume":"       188","oa":"1","citation":{"apa":"Gebken, B., &#38; Peitz, S. (2021). An efficient descent method for locally Lipschitz multiobjective optimization problems. <i>Journal of Optimization Theory and Applications</i>, <i>188</i>, 696–723. <a href=\"https://doi.org/10.1007/s10957-020-01803-w\">https://doi.org/10.1007/s10957-020-01803-w</a>","ieee":"B. Gebken and S. Peitz, “An efficient descent method for locally Lipschitz multiobjective optimization problems,” <i>Journal of Optimization Theory and Applications</i>, vol. 188, pp. 696–723, 2021.","short":"B. Gebken, S. Peitz, Journal of Optimization Theory and Applications 188 (2021) 696–723.","chicago":"Gebken, Bennet, and Sebastian Peitz. “An Efficient Descent Method for Locally Lipschitz Multiobjective Optimization Problems.” <i>Journal of Optimization Theory and Applications</i> 188 (2021): 696–723. <a href=\"https://doi.org/10.1007/s10957-020-01803-w\">https://doi.org/10.1007/s10957-020-01803-w</a>.","mla":"Gebken, Bennet, and Sebastian Peitz. “An Efficient Descent Method for Locally Lipschitz Multiobjective Optimization Problems.” <i>Journal of Optimization Theory and Applications</i>, vol. 188, 2021, pp. 696–723, doi:<a href=\"https://doi.org/10.1007/s10957-020-01803-w\">10.1007/s10957-020-01803-w</a>.","ama":"Gebken B, Peitz S. An efficient descent method for locally Lipschitz multiobjective optimization problems. <i>Journal of Optimization Theory and Applications</i>. 2021;188:696-723. doi:<a href=\"https://doi.org/10.1007/s10957-020-01803-w\">10.1007/s10957-020-01803-w</a>","bibtex":"@article{Gebken_Peitz_2021, title={An efficient descent method for locally Lipschitz multiobjective optimization problems}, volume={188}, DOI={<a href=\"https://doi.org/10.1007/s10957-020-01803-w\">10.1007/s10957-020-01803-w</a>}, journal={Journal of Optimization Theory and Applications}, author={Gebken, Bennet and Peitz, Sebastian}, year={2021}, pages={696–723} }"},"page":"696-723","_id":"16867","user_id":"47427","volume":188,"status":"public"},{"publication":"Journal of Global Optimization","abstract":[{"text":"It is a challenging task to identify the objectives on which a certain decision was based, in particular if several, potentially conflicting criteria are equally important and a continuous set of optimal compromise decisions exists. This task can be understood as the inverse problem of multiobjective optimization, where the goal is to find the objective function vector of a given Pareto set. To this end, we present a method to construct the objective function vector of an unconstrained multiobjective optimization problem (MOP) such that the Pareto critical set contains a given set of data points with prescribed KKT multipliers. If such an MOP can not be found, then the method instead produces an MOP whose Pareto critical set is at least close to the data points. The key idea is to consider the objective function vector in the multiobjective KKT conditions as variable and then search for the objectives that minimize the Euclidean norm of the resulting system of equations. By expressing the objectives in a finite-dimensional basis, we transform this problem into a homogeneous, linear system of equations that can be solved efficiently. Potential applications of this approach include the identification of objectives (both from clean and noisy data) and the construction of surrogate models for expensive MOPs.","lang":"eng"}],"date_created":"2020-03-13T12:45:05Z","department":[{"_id":"101"}],"type":"journal_article","author":[{"last_name":"Gebken","first_name":"Bennet","full_name":"Gebken, Bennet","id":"32643"},{"first_name":"Sebastian","orcid":"https://orcid.org/0000-0002-3389-793X","last_name":"Peitz","full_name":"Peitz, Sebastian","id":"47427"}],"title":"Inverse multiobjective optimization: Inferring decision criteria from data","year":"2021","intvolume":"        80","date_updated":"2022-01-06T06:52:48Z","language":[{"iso":"eng"}],"main_file_link":[{"url":"https://link.springer.com/content/pdf/10.1007/s10898-020-00983-z.pdf","open_access":"1"}],"doi":"10.1007/s10898-020-00983-z","citation":{"ama":"Gebken B, Peitz S. Inverse multiobjective optimization: Inferring decision criteria from data. <i>Journal of Global Optimization</i>. 2021;80:3-29. doi:<a href=\"https://doi.org/10.1007/s10898-020-00983-z\">10.1007/s10898-020-00983-z</a>","bibtex":"@article{Gebken_Peitz_2021, title={Inverse multiobjective optimization: Inferring decision criteria from data}, volume={80}, DOI={<a href=\"https://doi.org/10.1007/s10898-020-00983-z\">10.1007/s10898-020-00983-z</a>}, journal={Journal of Global Optimization}, publisher={Springer}, author={Gebken, Bennet and Peitz, Sebastian}, year={2021}, pages={3–29} }","mla":"Gebken, Bennet, and Sebastian Peitz. “Inverse Multiobjective Optimization: Inferring Decision Criteria from Data.” <i>Journal of Global Optimization</i>, vol. 80, Springer, 2021, pp. 3–29, doi:<a href=\"https://doi.org/10.1007/s10898-020-00983-z\">10.1007/s10898-020-00983-z</a>.","short":"B. Gebken, S. Peitz, Journal of Global Optimization 80 (2021) 3–29.","chicago":"Gebken, Bennet, and Sebastian Peitz. “Inverse Multiobjective Optimization: Inferring Decision Criteria from Data.” <i>Journal of Global Optimization</i> 80 (2021): 3–29. <a href=\"https://doi.org/10.1007/s10898-020-00983-z\">https://doi.org/10.1007/s10898-020-00983-z</a>.","apa":"Gebken, B., &#38; Peitz, S. (2021). Inverse multiobjective optimization: Inferring decision criteria from data. <i>Journal of Global Optimization</i>, <i>80</i>, 3–29. <a href=\"https://doi.org/10.1007/s10898-020-00983-z\">https://doi.org/10.1007/s10898-020-00983-z</a>","ieee":"B. Gebken and S. Peitz, “Inverse multiobjective optimization: Inferring decision criteria from data,” <i>Journal of Global Optimization</i>, vol. 80, pp. 3–29, 2021."},"oa":"1","status":"public","_id":"16295","publisher":"Springer","page":"3-29","volume":80,"user_id":"47427"},{"doi":"10.1126/sciadv.abl3903","language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1","url":"https://www.science.org/doi/10.1126/sciadv.abl3903"}],"article_number":"eabl3903","intvolume":"         7","article_type":"original","date_updated":"2022-03-03T07:25:11Z","publication_status":"published","author":[{"full_name":"Lu, Jinlong","first_name":"Jinlong","last_name":"Lu"},{"full_name":"Wirth, Konstantin G.","last_name":"Wirth","first_name":"Konstantin G."},{"first_name":"Wenlong","last_name":"Gao","full_name":"Gao, Wenlong"},{"full_name":"Heßler, Andreas","last_name":"Heßler","first_name":"Andreas"},{"last_name":"Sain","first_name":"Basudeb","full_name":"Sain, Basudeb"},{"first_name":"Thomas","last_name":"Taubner","full_name":"Taubner, Thomas"},{"orcid":"0000-0002-8662-1101","first_name":"Thomas","last_name":"Zentgraf","full_name":"Zentgraf, Thomas","id":"30525"}],"publication_identifier":{"issn":["2375-2548"]},"year":"2021","title":"Observing 0D subwavelength-localized modes at ~100 THz protected by weak topology","department":[{"_id":"15"},{"_id":"230"},{"_id":"289"},{"_id":"623"}],"type":"journal_article","date_created":"2021-12-02T19:40:56Z","file":[{"creator":"zentgraf","date_created":"2022-03-03T07:24:44Z","relation":"main_file","date_updated":"2022-03-03T07:24:44Z","file_name":"2021_ScienceAdv_TopologicalMode_Manuscript_Arxiv.pdf","access_level":"closed","file_size":2609760,"file_id":"30197","content_type":"application/pdf","success":1}],"abstract":[{"lang":"eng","text":"Topological photonic crystals (TPhCs) provide robust manipulation of light with built-in immunity to fabrication tolerances and disorder. Recently, it was shown that TPhCs based on weak topology with a dislocation inherit this robustness and further host topologically protected lower-dimensional localized modes. However, TPhCs with weak topology at optical frequencies have not been demonstrated so far. Here, we use scattering-type scanning near-field optical microscopy to verify mid-bandgap zero-dimensional light localization close to 100 THz in a TPhC with nontrivial Zak phase and an edge dislocation. We show that because of the weak topology, differently extended dislocation centers induce similarly strong light localization. The experimental results are supported by full-field simulations. Along with the underlying fundamental physics, our results lay a foundation for the application of TPhCs based on weak topology in active topological nanophotonics, and nonlinear and quantum optic integrated devices because of their strong and robust light localization."}],"publication":"Science Advances","issue":"49","volume":7,"ddc":["530"],"user_id":"30525","_id":"28255","has_accepted_license":"1","status":"public","oa":"1","quality_controlled":"1","citation":{"mla":"Lu, Jinlong, et al. “Observing 0D Subwavelength-Localized Modes at ~100 THz Protected by Weak Topology.” <i>Science Advances</i>, vol. 7, no. 49, eabl3903, 2021, doi:<a href=\"https://doi.org/10.1126/sciadv.abl3903\">10.1126/sciadv.abl3903</a>.","bibtex":"@article{Lu_Wirth_Gao_Heßler_Sain_Taubner_Zentgraf_2021, title={Observing 0D subwavelength-localized modes at ~100 THz protected by weak topology}, volume={7}, DOI={<a href=\"https://doi.org/10.1126/sciadv.abl3903\">10.1126/sciadv.abl3903</a>}, number={49eabl3903}, journal={Science Advances}, author={Lu, Jinlong and Wirth, Konstantin G. and Gao, Wenlong and Heßler, Andreas and Sain, Basudeb and Taubner, Thomas and Zentgraf, Thomas}, year={2021} }","ama":"Lu J, Wirth KG, Gao W, et al. Observing 0D subwavelength-localized modes at ~100 THz protected by weak topology. <i>Science Advances</i>. 2021;7(49). doi:<a href=\"https://doi.org/10.1126/sciadv.abl3903\">10.1126/sciadv.abl3903</a>","ieee":"J. Lu <i>et al.</i>, “Observing 0D subwavelength-localized modes at ~100 THz protected by weak topology,” <i>Science Advances</i>, vol. 7, no. 49, Art. no. eabl3903, 2021, doi: <a href=\"https://doi.org/10.1126/sciadv.abl3903\">10.1126/sciadv.abl3903</a>.","apa":"Lu, J., Wirth, K. G., Gao, W., Heßler, A., Sain, B., Taubner, T., &#38; Zentgraf, T. (2021). Observing 0D subwavelength-localized modes at ~100 THz protected by weak topology. <i>Science Advances</i>, <i>7</i>(49), Article eabl3903. <a href=\"https://doi.org/10.1126/sciadv.abl3903\">https://doi.org/10.1126/sciadv.abl3903</a>","short":"J. Lu, K.G. Wirth, W. Gao, A. Heßler, B. Sain, T. Taubner, T. Zentgraf, Science Advances 7 (2021).","chicago":"Lu, Jinlong, Konstantin G. Wirth, Wenlong Gao, Andreas Heßler, Basudeb Sain, Thomas Taubner, and Thomas Zentgraf. “Observing 0D Subwavelength-Localized Modes at ~100 THz Protected by Weak Topology.” <i>Science Advances</i> 7, no. 49 (2021). <a href=\"https://doi.org/10.1126/sciadv.abl3903\">https://doi.org/10.1126/sciadv.abl3903</a>."},"file_date_updated":"2022-03-03T07:24:44Z"},{"date_created":"2021-04-08T11:24:59Z","type":"conference","department":[{"_id":"76"}],"oa":"1","publication":"European Conference on Object-Oriented Programming (ECOOP)","citation":{"mla":"Schubert, Philipp, et al. “Lossless, Persisted Summarization of Static Callgraph, Points-To and Data-Flow Analysis.” <i>European Conference on Object-Oriented Programming (ECOOP)</i>, 2021.","apa":"Schubert, P., Hermann, B., &#38; Bodden, E. (2021). Lossless, Persisted Summarization of Static Callgraph, Points-To and Data-Flow Analysis. <i>European Conference on Object-Oriented Programming (ECOOP)</i>.","ieee":"P. Schubert, B. Hermann, and E. Bodden, “Lossless, Persisted Summarization of Static Callgraph, Points-To and Data-Flow Analysis,” 2021.","ama":"Schubert P, Hermann B, Bodden E. Lossless, Persisted Summarization of Static Callgraph, Points-To and Data-Flow Analysis. In: <i>European Conference on Object-Oriented Programming (ECOOP)</i>. ; 2021.","short":"P. Schubert, B. Hermann, E. Bodden, in: European Conference on Object-Oriented Programming (ECOOP), 2021.","chicago":"Schubert, Philipp, Ben Hermann, and Eric Bodden. “Lossless, Persisted Summarization of Static Callgraph, Points-To and Data-Flow Analysis.” In <i>European Conference on Object-Oriented Programming (ECOOP)</i>, 2021.","bibtex":"@inproceedings{Schubert_Hermann_Bodden_2021, title={Lossless, Persisted Summarization of Static Callgraph, Points-To and Data-Flow Analysis}, booktitle={European Conference on Object-Oriented Programming (ECOOP)}, author={Schubert, Philipp and Hermann, Ben and Bodden, Eric}, year={2021} }"},"abstract":[{"lang":"eng","text":"Static analysis is used to automatically detect bugs and security breaches, and aids compileroptimization. Whole-program analysis (WPA) can yield high precision, however causes long analysistimes and thus does not match common software-development workflows, making it often impracticalto use for large, real-world applications.This paper thus presents the design and implementation ofModAlyzer, a novel static-analysisapproach that aims at accelerating whole-program analysis by making the analysis modular andcompositional. It shows how to computelossless, persisted summaries for callgraph, points-to anddata-flow information, and it reports under which circumstances this function-level compositionalanalysis outperforms WPA.We implementedModAlyzeras an extension to LLVM and PhASAR, and applied it to 12 real-world C and C++ applications. At analysis time,ModAlyzermodularly and losslessly summarizesthe analysis effect of the library code those applications share, hence avoiding its repeated re-analysis.The experimental results show that the reuse of these summaries can save, on average, 72% ofanalysis time over WPA. Moreover, because it is lossless, the module-wise analysis fully retainsprecision and recall. Surprisingly, as our results show, it sometimes even yields precision superior toWPA. The initial summary generation, on average, takes about 3.67 times as long as WPA."}],"project":[{"name":"SFB 901 - Project Area B","_id":"3"},{"_id":"12","name":"SFB 901 - Subproject B4"},{"_id":"1","name":"SFB 901"}],"main_file_link":[{"url":"https://drops.dagstuhl.de/opus/volltexte/2021/14045/","open_access":"1"}],"_id":"21598","language":[{"iso":"eng"}],"user_id":"60543","title":"Lossless, Persisted Summarization of Static Callgraph, Points-To and Data-Flow Analysis","status":"public","year":"2021","author":[{"full_name":"Schubert, Philipp","first_name":"Philipp","orcid":"0000-0002-8674-1859","last_name":"Schubert","id":"60543"},{"id":"66173","full_name":"Hermann, Ben","first_name":"Ben","last_name":"Hermann","orcid":"0000-0001-9848-2017"},{"id":"59256","full_name":"Bodden, Eric","orcid":"0000-0003-3470-3647","first_name":"Eric","last_name":"Bodden"}],"date_updated":"2022-03-25T07:49:35Z"},{"project":[{"name":"TRR 285: TRR 285","grant_number":"418701707","_id":"130"},{"name":"TRR 285 - A: TRR 285 - Project Area A","_id":"131"},{"name":"TRR 285 – A01: TRR 285 - Subproject A01","_id":"135"}],"citation":{"apa":"Bielak, C. R., Böhnke, M., Bobbert, M., &#38; Meschut, G. (n.d.). <i>Further development of a numerical method for analyzing the load capacity of clinched joints in versatile process chains</i>. ESAFORM 2021, Lüttich. <a href=\"https://doi.org/10.25518/esaform21.4298\">https://doi.org/10.25518/esaform21.4298</a>","mla":"Bielak, Christian Roman, et al. <i>Further Development of a Numerical Method for Analyzing the Load Capacity of Clinched Joints in Versatile Process Chains</i>. doi:<a href=\"https://doi.org/10.25518/esaform21.4298\">10.25518/esaform21.4298</a>.","ieee":"C. R. Bielak, M. Böhnke, M. Bobbert, and G. Meschut, “Further development of a numerical method for analyzing the load capacity of clinched joints in versatile process chains,” presented at the ESAFORM 2021, Lüttich, doi: <a href=\"https://doi.org/10.25518/esaform21.4298\">10.25518/esaform21.4298</a>.","chicago":"Bielak, Christian Roman, Max Böhnke, Mathias Bobbert, and Gerson Meschut. “Further Development of a Numerical Method for Analyzing the Load Capacity of Clinched Joints in Versatile Process Chains.” ESAFORM 2021, n.d. <a href=\"https://doi.org/10.25518/esaform21.4298\">https://doi.org/10.25518/esaform21.4298</a>.","ama":"Bielak CR, Böhnke M, Bobbert M, Meschut G. Further development of a numerical method for analyzing the load capacity of clinched joints in versatile process chains. doi:<a href=\"https://doi.org/10.25518/esaform21.4298\">10.25518/esaform21.4298</a>","short":"C.R. Bielak, M. Böhnke, M. Bobbert, G. Meschut, in: ESAFORM 2021, n.d.","bibtex":"@inproceedings{Bielak_Böhnke_Bobbert_Meschut, place={ESAFORM 2021}, title={Further development of a numerical method for analyzing the load capacity of clinched joints in versatile process chains}, DOI={<a href=\"https://doi.org/10.25518/esaform21.4298\">10.25518/esaform21.4298</a>}, author={Bielak, Christian Roman and Böhnke, Max and Bobbert, Mathias and Meschut, Gerson} }"},"oa":"1","department":[{"_id":"157"}],"type":"conference","place":"ESAFORM 2021","date_created":"2020-12-21T08:15:27Z","date_updated":"2022-03-29T12:55:57Z","publication_status":"submitted","conference":{"location":"Lüttich","start_date":"2021 04 14","name":"ESAFORM 2021","end_date":"2021 04 16"},"author":[{"full_name":"Bielak, Christian Roman","first_name":"Christian Roman","last_name":"Bielak","id":"34782"},{"id":"45779","full_name":"Böhnke, Max","last_name":"Böhnke","first_name":"Max"},{"first_name":"Mathias","last_name":"Bobbert","full_name":"Bobbert, Mathias","id":"7850"},{"full_name":"Meschut, Gerson","last_name":"Meschut","orcid":"0000-0002-2763-1246","first_name":"Gerson","id":"32056"}],"year":"2021","title":"Further development of a numerical method for analyzing the load capacity of clinched joints in versatile process chains","status":"public","doi":"10.25518/esaform21.4298","user_id":"34782","_id":"20807","language":[{"iso":"eng"}],"main_file_link":[{"url":"https://popups.uliege.be/esaform21/index.php?id=3418","open_access":"1"}]},{"file_date_updated":"2022-04-13T09:39:56Z","citation":{"ieee":"M. D. Wever, <i>Automated Machine Learning for Multi-Label Classification</i>. 2021.","mla":"Wever, Marcel Dominik. <i>Automated Machine Learning for Multi-Label Classification</i>. 2021, doi:<a href=\"https://doi.org/10.17619/UNIPB/1-1302\">10.17619/UNIPB/1-1302</a>.","apa":"Wever, M. D. (2021). <i>Automated Machine Learning for Multi-Label Classification</i>. <a href=\"https://doi.org/10.17619/UNIPB/1-1302\">https://doi.org/10.17619/UNIPB/1-1302</a>","bibtex":"@book{Wever_2021, title={Automated Machine Learning for Multi-Label Classification}, DOI={<a href=\"https://doi.org/10.17619/UNIPB/1-1302\">10.17619/UNIPB/1-1302</a>}, author={Wever, Marcel Dominik}, year={2021} }","ama":"Wever MD. <i>Automated Machine Learning for Multi-Label Classification</i>.; 2021. doi:<a href=\"https://doi.org/10.17619/UNIPB/1-1302\">10.17619/UNIPB/1-1302</a>","short":"M.D. Wever, Automated Machine Learning for Multi-Label Classification, 2021.","chicago":"Wever, Marcel Dominik. <i>Automated Machine Learning for Multi-Label Classification</i>, 2021. <a href=\"https://doi.org/10.17619/UNIPB/1-1302\">https://doi.org/10.17619/UNIPB/1-1302</a>."},"supervisor":[{"id":"48129","last_name":"Hüllermeier","first_name":"Eyke","full_name":"Hüllermeier, Eyke"}],"project":[{"name":"SFB 901","_id":"1"},{"_id":"3","name":"SFB 901 - Project Area B"},{"name":"SFB 901 - Subproject B2","_id":"10"}],"oa":"1","status":"public","has_accepted_license":"1","_id":"27284","user_id":"33176","ddc":["000"],"file":[{"file_id":"30886","content_type":"application/pdf","file_name":"dissertation_publish_upload.pdf","file_size":8098177,"access_level":"open_access","relation":"main_file","date_updated":"2022-04-13T09:39:56Z","date_created":"2022-04-13T09:35:25Z","creator":"wever"}],"date_created":"2021-11-08T14:05:19Z","type":"dissertation","department":[{"_id":"355"}],"year":"2021","title":"Automated Machine Learning for Multi-Label Classification","author":[{"last_name":"Wever","first_name":"Marcel Dominik","orcid":" https://orcid.org/0000-0001-9782-6818","full_name":"Wever, Marcel Dominik","id":"33176"}],"publication_status":"published","date_updated":"2022-04-13T09:39:56Z","language":[{"iso":"eng"}],"doi":"10.17619/UNIPB/1-1302"},{"_id":"25476","page":"70-76","volume":16,"user_id":"71269","status":"public","oa":"1","citation":{"mla":"Otroshi, Mortaza, et al. “The Influence of Manufacturing Processes and Optical Measurement Methods on the Damage Behavior of HX340LAD Micro-Alloyed Steels.” <i>Journal of Manufacturing Engineering</i>, vol. 16, no. 3, 2021, pp. 70–76, doi:<a href=\"https://doi.org/10.37255/jme.v16i3pp070-076\">https://doi.org/10.37255/jme.v16i3pp070-076</a>.","ama":"Otroshi M, Meschut G, Nesakumar A. The influence of manufacturing processes and optical measurement methods on the damage behavior of HX340LAD micro-alloyed steels. <i>Journal of Manufacturing Engineering</i>. 2021;16(3):70-76. doi:<a href=\"https://doi.org/10.37255/jme.v16i3pp070-076\">https://doi.org/10.37255/jme.v16i3pp070-076</a>","bibtex":"@article{Otroshi_Meschut_Nesakumar_2021, title={The influence of manufacturing processes and optical measurement methods on the damage behavior of HX340LAD micro-alloyed steels}, volume={16}, DOI={<a href=\"https://doi.org/10.37255/jme.v16i3pp070-076\">https://doi.org/10.37255/jme.v16i3pp070-076</a>}, number={3}, journal={Journal of Manufacturing Engineering}, author={Otroshi, Mortaza and Meschut, Gerson and Nesakumar, Aathavan}, year={2021}, pages={70–76} }","apa":"Otroshi, M., Meschut, G., &#38; Nesakumar, A. (2021). The influence of manufacturing processes and optical measurement methods on the damage behavior of HX340LAD micro-alloyed steels. <i>Journal of Manufacturing Engineering</i>, <i>16</i>(3), 70–76. <a href=\"https://doi.org/10.37255/jme.v16i3pp070-076\">https://doi.org/10.37255/jme.v16i3pp070-076</a>","ieee":"M. Otroshi, G. Meschut, and A. Nesakumar, “The influence of manufacturing processes and optical measurement methods on the damage behavior of HX340LAD micro-alloyed steels,” <i>Journal of Manufacturing Engineering</i>, vol. 16, no. 3, pp. 70–76, 2021, doi: <a href=\"https://doi.org/10.37255/jme.v16i3pp070-076\">https://doi.org/10.37255/jme.v16i3pp070-076</a>.","chicago":"Otroshi, Mortaza, Gerson Meschut, and Aathavan Nesakumar. “The Influence of Manufacturing Processes and Optical Measurement Methods on the Damage Behavior of HX340LAD Micro-Alloyed Steels.” <i>Journal of Manufacturing Engineering</i> 16, no. 3 (2021): 70–76. <a href=\"https://doi.org/10.37255/jme.v16i3pp070-076\">https://doi.org/10.37255/jme.v16i3pp070-076</a>.","short":"M. Otroshi, G. Meschut, A. Nesakumar, Journal of Manufacturing Engineering 16 (2021) 70–76."},"quality_controlled":"1","language":[{"iso":"eng"}],"main_file_link":[{"url":"http://smenec.org/index.php/1/article/view/187","open_access":"1"}],"doi":"https://doi.org/10.37255/jme.v16i3pp070-076","author":[{"orcid":"0000-0002-8652-9209","first_name":"Mortaza","last_name":"Otroshi","full_name":"Otroshi, Mortaza","id":"71269"},{"full_name":"Meschut, Gerson","orcid":"0000-0002-2763-1246","last_name":"Meschut","first_name":"Gerson","id":"32056"},{"first_name":"Aathavan","last_name":"Nesakumar","full_name":"Nesakumar, Aathavan"}],"year":"2021","title":"The influence of manufacturing processes and optical measurement methods on the damage behavior of HX340LAD micro-alloyed steels","intvolume":"        16","article_type":"original","date_updated":"2022-04-25T07:48:07Z","publication_status":"published","date_created":"2021-10-05T09:11:47Z","department":[{"_id":"157"}],"type":"journal_article","keyword":["Damage behaviour","Stress triaxiality","Manufacturing process and Optical measurement"],"publication":"Journal of Manufacturing Engineering","issue":"3","abstract":[{"lang":"eng","text":"This study deals with the damage behavior of metallic materials by the application of different manufacturing processes and using different optical measurement methods to identify the crack initiation in the damage specimen. The study is intended to highlight the importance of considering manufacturing processes and optical measurement methods in a numerical simulation when analyzing the damage behavior of metallic materials. To describe the damage behavior of the material in the process chain simulations, it is important to calibrate the parameters of damage model more accurately. These parameters are determined using experimental investigation of desired damage specimens. In this regard, a selected damage specimen manufactured by different cutting processes is first experimentally and then numerically investigated. It is shown that the manufacturing process and the optical measurement methods influence the stress state analyzed in the numerical simulation."}]},{"abstract":[{"lang":"eng","text":"Requirements for energy distribution networks are changing fast due to the growing share of renewable energy, increasing electrification, and novel consumer and asset technologies. Since uncertainties about future developments increase planning difficulty, flexibility potentials such as synergies between the electricity, gas, heat, and transport sector often remain unused. In this paper, we therefore present a novel module-based concept for a decision support system that helps distribution network planners to identify cross-sectoral synergies and to select optimal network assets such as transformers, cables, pipes, energy storage systems or energy conversion technology. The concept enables long-term transformation plans and supports distribution network planners in designing reliable, sustainable and cost-efficient distribution networks for future demands."}],"citation":{"bibtex":"@inproceedings{Kirchhoff_Burmeister_Weskamp_Engels_2021, title={Towards a Decision Support System for Cross-Sectoral Energy Distribution Network Planning}, booktitle={Energy Informatics and Electro Mobility ICT}, author={Kirchhoff, Jonas and Burmeister, Sascha Christian and Weskamp, Christoph and Engels, Gregor}, editor={Breitner, Michael H. and Lehnhoff, Sebastian and Nieße, Astrid and Staudt, Philipp and Weinhardt, Christof and Werth, Oliver}, year={2021} }","ama":"Kirchhoff J, Burmeister SC, Weskamp C, Engels G. Towards a Decision Support System for Cross-Sectoral Energy Distribution Network Planning. In: Breitner MH, Lehnhoff S, Nieße A, Staudt P, Weinhardt C, Werth O, eds. <i>Energy Informatics and Electro Mobility ICT</i>. ; 2021.","mla":"Kirchhoff, Jonas, et al. “Towards a Decision Support System for Cross-Sectoral Energy Distribution Network Planning.” <i>Energy Informatics and Electro Mobility ICT</i>, edited by Michael H. Breitner et al., 2021.","chicago":"Kirchhoff, Jonas, Sascha Christian Burmeister, Christoph Weskamp, and Gregor Engels. “Towards a Decision Support System for Cross-Sectoral Energy Distribution Network Planning.” In <i>Energy Informatics and Electro Mobility ICT</i>, edited by Michael H. Breitner, Sebastian Lehnhoff, Astrid Nieße, Philipp Staudt, Christof Weinhardt, and Oliver Werth, 2021.","short":"J. Kirchhoff, S.C. Burmeister, C. Weskamp, G. Engels, in: M.H. Breitner, S. Lehnhoff, A. Nieße, P. Staudt, C. Weinhardt, O. Werth (Eds.), Energy Informatics and Electro Mobility ICT, 2021.","ieee":"J. Kirchhoff, S. C. Burmeister, C. Weskamp, and G. Engels, “Towards a Decision Support System for Cross-Sectoral Energy Distribution Network Planning,” in <i>Energy Informatics and Electro Mobility ICT</i>, 2021.","apa":"Kirchhoff, J., Burmeister, S. C., Weskamp, C., &#38; Engels, G. (2021). Towards a Decision Support System for Cross-Sectoral Energy Distribution Network Planning. In M. H. Breitner, S. Lehnhoff, A. Nieße, P. Staudt, C. Weinhardt, &#38; O. Werth (Eds.), <i>Energy Informatics and Electro Mobility ICT</i>."},"publication":"Energy Informatics and Electro Mobility ICT","oa":"1","department":[{"_id":"534"},{"_id":"66"},{"_id":"277"}],"type":"conference","date_created":"2021-01-28T10:05:44Z","date_updated":"2022-04-30T13:48:49Z","conference":{"start_date":"2021-03-08","name":"Pre-Conference 16. International Congress on Wirtschaftsinformatik Universität Duisburg-Essen","end_date":"2021-03-11"},"author":[{"first_name":"Jonas","last_name":"Kirchhoff","full_name":"Kirchhoff, Jonas","id":"39928"},{"full_name":"Burmeister, Sascha Christian","first_name":"Sascha Christian","last_name":"Burmeister","id":"32685"},{"full_name":"Weskamp, Christoph","last_name":"Weskamp","first_name":"Christoph"},{"last_name":"Engels","first_name":"Gregor","full_name":"Engels, Gregor","id":"107"}],"status":"public","title":"Towards a Decision Support System for Cross-Sectoral Energy Distribution Network Planning","year":"2021","editor":[{"full_name":"Breitner, Michael H.","first_name":"Michael H.","last_name":"Breitner"},{"first_name":"Sebastian","last_name":"Lehnhoff","full_name":"Lehnhoff, Sebastian"},{"full_name":"Nieße, Astrid","last_name":"Nieße","first_name":"Astrid"},{"full_name":"Staudt, Philipp","first_name":"Philipp","last_name":"Staudt"},{"full_name":"Weinhardt, Christof","first_name":"Christof","last_name":"Weinhardt"},{"last_name":"Werth","first_name":"Oliver","full_name":"Werth, Oliver"}],"user_id":"39928","language":[{"iso":"eng"}],"_id":"21093","main_file_link":[{"url":"https://oops.uni-oldenburg.de/5084/7/proceedings_ow_sto_2021.pdf#page=41","open_access":"1"}]},{"_id":"20212","user_id":"72850","ddc":["000"],"volume":140,"status":"public","has_accepted_license":"1","oa":"1","file_date_updated":"2020-10-27T13:31:01Z","citation":{"chicago":"Prester, Julian, Gerit Wagner, Guido Schryen, and Nik Rushdi Hassan. “Classifying the Ideational Impact of Information Systems Review Articles: A Content-Enriched Deep Learning Approach.” <i>Decision Support Systems</i> 140, no. January (2021).","short":"J. Prester, G. Wagner, G. Schryen, N.R. Hassan, Decision Support Systems 140 (2021).","apa":"Prester, J., Wagner, G., Schryen, G., &#38; Hassan, N. R. (2021). Classifying the Ideational Impact of Information Systems Review Articles: A Content-Enriched Deep Learning Approach. <i>Decision Support Systems</i>, <i>140</i>(January), Article 113432.","ieee":"J. Prester, G. Wagner, G. Schryen, and N. R. Hassan, “Classifying the Ideational Impact of Information Systems Review Articles: A Content-Enriched Deep Learning Approach,” <i>Decision Support Systems</i>, vol. 140, no. January, Art. no. 113432, 2021.","ama":"Prester J, Wagner G, Schryen G, Hassan NR. Classifying the Ideational Impact of Information Systems Review Articles: A Content-Enriched Deep Learning Approach. <i>Decision Support Systems</i>. 2021;140(January).","bibtex":"@article{Prester_Wagner_Schryen_Hassan_2021, title={Classifying the Ideational Impact of Information Systems Review Articles: A Content-Enriched Deep Learning Approach}, volume={140}, number={January113432}, journal={Decision Support Systems}, author={Prester, Julian and Wagner, Gerit and Schryen, Guido and Hassan, Nik Rushdi}, year={2021} }","mla":"Prester, Julian, et al. “Classifying the Ideational Impact of Information Systems Review Articles: A Content-Enriched Deep Learning Approach.” <i>Decision Support Systems</i>, vol. 140, no. January, 113432, 2021."},"article_number":"113432","language":[{"iso":"eng"}],"title":"Classifying the Ideational Impact of Information Systems Review Articles: A Content-Enriched Deep Learning Approach","year":"2021","author":[{"full_name":"Prester, Julian","last_name":"Prester","first_name":"Julian"},{"first_name":"Gerit","last_name":"Wagner","full_name":"Wagner, Gerit"},{"full_name":"Schryen, Guido","last_name":"Schryen","first_name":"Guido","id":"72850"},{"first_name":"Nik Rushdi","last_name":"Hassan","full_name":"Hassan, Nik Rushdi"}],"date_updated":"2022-06-10T06:55:32Z","intvolume":"       140","file":[{"relation":"main_file","date_updated":"2020-10-27T13:31:01Z","file_name":"DECSUP-D-20-00312 - PREPUBLICATION.pdf","file_size":440903,"access_level":"open_access","file_id":"20213","content_type":"application/pdf","creator":"hsiemes","date_created":"2020-10-27T13:31:01Z"}],"date_created":"2020-10-27T13:28:21Z","keyword":["Ideational impact","citation classification","academic recommender systems","natural language processing","deep learning","cumulative tradition"],"type":"journal_article","department":[{"_id":"277"}],"issue":"January","publication":"Decision Support Systems","abstract":[{"lang":"eng","text":"Ideational impact refers to the uptake of a paper's ideas and concepts by subsequent research. It is defined in stark contrast to total citation impact, a measure predominantly used in research evaluation that assumes that all citations are equal. Understanding ideational impact is critical for evaluating research impact and understanding how scientific disciplines build a cumulative tradition. Research has only recently developed automated citation classification techniques to distinguish between different types of citations and generally does not emphasize the conceptual content of the citations and its ideational impact. To address this problem, we develop Deep Content-enriched Ideational Impact Classification (Deep-CENIC) as the first automated approach for ideational impact classification to support researchers' literature search practices. We evaluate Deep-CENIC on 1,256 papers citing 24 information systems review articles from the IT business value domain. We show that Deep-CENIC significantly outperforms state-of-the-art benchmark models. We contribute to information systems research by operationalizing the concept of ideational impact, designing a recommender system for academic papers based on deep learning techniques, and empirically exploring the ideational impact of the IT business value domain.\r\n"}]},{"abstract":[{"text":"Review papers are essential for knowledge development in IS. While some are cited twice a day, others accumulate single digit citations over a decade. The magnitude of these differences prompts us to analyze what distinguishes those reviews that have proven to be integral to scientific progress from those that might be considered less impactful. Our results highlight differences between reviews aimed at describing, understanding, explaining, and theory testing. Beyond the control variables, they demonstrate the importance of methodological transparency and the development of research agendas. These insights inform all stakeholders involved in the development and publication of review papers.","lang":"eng"}],"issue":"3","publication":"Information & Management","type":"journal_article","keyword":["Literature review","review papers","scientometric","scientific impact","citation analysis"],"department":[{"_id":"277"}],"file":[{"file_id":"20845","content_type":"application/pdf","file_name":"INFMAN_Scientific Impact of Review Papers - Prepublication version.pdf","file_size":1584950,"access_level":"open_access","relation":"main_file","date_updated":"2020-12-29T11:49:57Z","date_created":"2020-12-29T11:49:57Z","creator":"hsiemes"}],"date_created":"2020-12-29T11:52:03Z","date_updated":"2022-06-10T06:53:12Z","intvolume":"        58","year":"2021","title":"Which Factors Affect the Scientific Impact of Review Papers in IS Research? A Scientometric Study","author":[{"first_name":"Gerit","last_name":"Wagner","full_name":"Wagner, Gerit"},{"full_name":"Prester, Julian","last_name":"Prester","first_name":"Julian"},{"full_name":"Roche, Maria","first_name":"Maria","last_name":"Roche"},{"id":"72850","last_name":"Schryen","first_name":"Guido","full_name":"Schryen, Guido"},{"full_name":"Benlian, Alexander","last_name":"Benlian","first_name":"Alexander"},{"last_name":"Paré","first_name":"Guy","full_name":"Paré, Guy"},{"first_name":"Mathieu","last_name":"Templier","full_name":"Templier, Mathieu"}],"article_number":"103427","language":[{"iso":"eng"}],"file_date_updated":"2020-12-29T11:49:57Z","citation":{"bibtex":"@article{Wagner_Prester_Roche_Schryen_Benlian_Paré_Templier_2021, title={Which Factors Affect the Scientific Impact of Review Papers in IS Research? A Scientometric Study}, volume={58}, number={3103427}, journal={Information &#38; Management}, author={Wagner, Gerit and Prester, Julian and Roche, Maria and Schryen, Guido and Benlian, Alexander and Paré, Guy and Templier, Mathieu}, year={2021} }","ama":"Wagner G, Prester J, Roche M, et al. Which Factors Affect the Scientific Impact of Review Papers in IS Research? A Scientometric Study. <i>Information &#38; Management</i>. 2021;58(3).","mla":"Wagner, Gerit, et al. “Which Factors Affect the Scientific Impact of Review Papers in IS Research? A Scientometric Study.” <i>Information &#38; Management</i>, vol. 58, no. 3, 103427, 2021.","short":"G. Wagner, J. Prester, M. Roche, G. Schryen, A. Benlian, G. Paré, M. Templier, Information &#38; Management 58 (2021).","chicago":"Wagner, Gerit, Julian Prester, Maria Roche, Guido Schryen, Alexander Benlian, Guy Paré, and Mathieu Templier. “Which Factors Affect the Scientific Impact of Review Papers in IS Research? A Scientometric Study.” <i>Information &#38; Management</i> 58, no. 3 (2021).","ieee":"G. Wagner <i>et al.</i>, “Which Factors Affect the Scientific Impact of Review Papers in IS Research? A Scientometric Study,” <i>Information &#38; Management</i>, vol. 58, no. 3, Art. no. 103427, 2021.","apa":"Wagner, G., Prester, J., Roche, M., Schryen, G., Benlian, A., Paré, G., &#38; Templier, M. (2021). Which Factors Affect the Scientific Impact of Review Papers in IS Research? A Scientometric Study. <i>Information &#38; Management</i>, <i>58</i>(3), Article 103427."},"oa":"1","has_accepted_license":"1","status":"public","user_id":"72850","ddc":["000"],"volume":58,"_id":"20844"},{"has_accepted_license":"1","status":"public","user_id":"72850","ddc":["000"],"volume":10,"_id":"23494","project":[{"grant_number":"619543","_id":"21","name":"An integrated development environment for portable network applications","call_identifier":"FP7-ICT-2013-11"}],"file_date_updated":"2022-06-09T11:20:09Z","citation":{"ama":"Stumpe M, Rößler D, Schryen G, Kliewer N. Study on Sensitivity of Electric Bus Systems under Simultaneous Optimization of Charging Infrastructure and Vehicle Schedules. <i>EURO Journal on Transportation and Logistics</i>. 2021;10. doi:<a href=\"https://doi.org/10.1016/j.ejtl.2021.100049\">https://doi.org/10.1016/j.ejtl.2021.100049</a>","bibtex":"@article{Stumpe_Rößler_Schryen_Kliewer_2021, title={Study on Sensitivity of Electric Bus Systems under Simultaneous Optimization of Charging Infrastructure and Vehicle Schedules}, volume={10}, DOI={<a href=\"https://doi.org/10.1016/j.ejtl.2021.100049\">https://doi.org/10.1016/j.ejtl.2021.100049</a>}, number={100049}, journal={EURO Journal on Transportation and Logistics}, author={Stumpe, Miriam and Rößler, David and Schryen, Guido and Kliewer, Natalia}, year={2021} }","mla":"Stumpe, Miriam, et al. “Study on Sensitivity of Electric Bus Systems under Simultaneous Optimization of Charging Infrastructure and Vehicle Schedules.” <i>EURO Journal on Transportation and Logistics</i>, vol. 10, 100049, 2021, doi:<a href=\"https://doi.org/10.1016/j.ejtl.2021.100049\">https://doi.org/10.1016/j.ejtl.2021.100049</a>.","short":"M. Stumpe, D. Rößler, G. Schryen, N. Kliewer, EURO Journal on Transportation and Logistics 10 (2021).","chicago":"Stumpe, Miriam, David Rößler, Guido Schryen, and Natalia Kliewer. “Study on Sensitivity of Electric Bus Systems under Simultaneous Optimization of Charging Infrastructure and Vehicle Schedules.” <i>EURO Journal on Transportation and Logistics</i> 10 (2021). <a href=\"https://doi.org/10.1016/j.ejtl.2021.100049\">https://doi.org/10.1016/j.ejtl.2021.100049</a>.","apa":"Stumpe, M., Rößler, D., Schryen, G., &#38; Kliewer, N. (2021). Study on Sensitivity of Electric Bus Systems under Simultaneous Optimization of Charging Infrastructure and Vehicle Schedules. <i>EURO Journal on Transportation and Logistics</i>, <i>10</i>, Article 100049. <a href=\"https://doi.org/10.1016/j.ejtl.2021.100049\">https://doi.org/10.1016/j.ejtl.2021.100049</a>","ieee":"M. Stumpe, D. Rößler, G. Schryen, and N. Kliewer, “Study on Sensitivity of Electric Bus Systems under Simultaneous Optimization of Charging Infrastructure and Vehicle Schedules,” <i>EURO Journal on Transportation and Logistics</i>, vol. 10, Art. no. 100049, 2021, doi: <a href=\"https://doi.org/10.1016/j.ejtl.2021.100049\">https://doi.org/10.1016/j.ejtl.2021.100049</a>."},"oa":"1","date_updated":"2022-06-10T06:49:27Z","intvolume":"        10","year":"2021","title":"Study on Sensitivity of Electric Bus Systems under Simultaneous Optimization of Charging Infrastructure and Vehicle Schedules","author":[{"id":"64135","first_name":"Miriam","last_name":"Stumpe","full_name":"Stumpe, Miriam"},{"full_name":"Rößler, David","last_name":"Rößler","first_name":"David"},{"last_name":"Schryen","first_name":"Guido","full_name":"Schryen, Guido","id":"72850"},{"last_name":"Kliewer","first_name":"Natalia","full_name":"Kliewer, Natalia"}],"doi":"https://doi.org/10.1016/j.ejtl.2021.100049","article_number":"100049","language":[{"iso":"eng"}],"publication":"EURO Journal on Transportation and Logistics","ec_funded":"1","type":"journal_article","department":[{"_id":"277"}],"file":[{"creator":"hsiemes","date_created":"2022-06-09T11:20:09Z","relation":"main_file","date_updated":"2022-06-09T11:20:09Z","file_name":"1-s2.0-S2192437621000200-main.pdf","file_size":4966940,"access_level":"open_access","file_id":"31846","content_type":"application/pdf"}],"date_created":"2021-08-24T09:20:08Z"},{"language":[{"iso":"eng"}],"article_number":"37","intvolume":"        48","date_updated":"2022-06-09T11:12:05Z","author":[{"full_name":"Wagner, Gerit","first_name":"Gerit","last_name":"Wagner"},{"full_name":"Prester, Julian","first_name":"Julian","last_name":"Prester"},{"full_name":"Schryen, Guido","last_name":"Schryen","first_name":"Guido","id":"72850"}],"year":"2021","title":"Exploring the Scientific Impact of Information Systems Design Science Research","department":[{"_id":"277"}],"type":"journal_article","date_created":"2020-08-14T06:37:43Z","file":[{"date_updated":"2022-06-09T11:09:05Z","relation":"main_file","access_level":"open_access","file_size":1354076,"file_name":"Exploring the Scientific Impact of Information Systems Design Sci.pdf","content_type":"application/pdf","file_id":"31845","creator":"hsiemes","date_created":"2022-06-09T11:09:05Z"}],"issue":"1","publication":"Communications of the Association for Information Systems","volume":48,"user_id":"61579","ddc":["000"],"_id":"17934","has_accepted_license":"1","status":"public","oa":"1","citation":{"ama":"Wagner G, Prester J, Schryen G. Exploring the Scientific Impact of Information Systems Design Science Research. <i>Communications of the Association for Information Systems</i>. 2021;48(1).","bibtex":"@article{Wagner_Prester_Schryen_2021, title={Exploring the Scientific Impact of Information Systems Design Science Research}, volume={48}, number={137}, journal={Communications of the Association for Information Systems}, author={Wagner, Gerit and Prester, Julian and Schryen, Guido}, year={2021} }","mla":"Wagner, Gerit, et al. “Exploring the Scientific Impact of Information Systems Design Science Research.” <i>Communications of the Association for Information Systems</i>, vol. 48, no. 1, 37, 2021.","chicago":"Wagner, Gerit, Julian Prester, and Guido Schryen. “Exploring the Scientific Impact of Information Systems Design Science Research.” <i>Communications of the Association for Information Systems</i> 48, no. 1 (2021).","short":"G. Wagner, J. Prester, G. Schryen, Communications of the Association for Information Systems 48 (2021).","apa":"Wagner, G., Prester, J., &#38; Schryen, G. (2021). Exploring the Scientific Impact of Information Systems Design Science Research. <i>Communications of the Association for Information Systems</i>, <i>48</i>(1), Article 37.","ieee":"G. Wagner, J. Prester, and G. Schryen, “Exploring the Scientific Impact of Information Systems Design Science Research,” <i>Communications of the Association for Information Systems</i>, vol. 48, no. 1, Art. no. 37, 2021."},"file_date_updated":"2022-06-09T11:09:05Z"},{"oa":"1","department":[{"_id":"101"}],"type":"dissertation","date_created":"2022-06-20T09:54:24Z","abstract":[{"lang":"ger","text":"Ein zentraler Aspekt bei der Untersuchung dynamischer Systeme ist die Analyse ihrer invarianten Mengen wie des globalen Attraktors und (in)stabiler Mannigfaltigkeiten. Insbesondere wenn das zugrunde liegende System von einem Parameter abhängt, ist es entscheidend, sie im Bezug auf diesen Parameter effizient zu verfolgen. Für die Berechnung invarianter Mengen stützen wir uns für ihre Approximation auf numerische Algorithmen. Typischerweise können diese Methoden jedoch nur auf endlich-dimensionale dynamische Systeme angewendet werden. In dieser Arbeit präsentieren wir daher einen numerischen Rahmen für die globale dynamische Analyse unendlich-dimensionaler Systeme. Wir werden Einbettungstechniken verwenden, um das core dynamical system (CDS) zu definieren, welches ein dynamisch äquivalentes endlich-dimensionales System ist.Das CDS wird dann verwendet, um eingebettete invariante Mengen, also eins-zu-eins Bilder, mittels Mengen-orientierten numerischen Methoden zu approximieren. Bei der Konstruktion des CDS ist es entscheidend, eine geeignete Beobachtungsabbildung auszuwählen und die geeignete inverse Abbildung zu entwerfen. Dazu werden wir geeignete numerische Implementierungen des CDS für DDEs und PDEs vorstellen. Für eine nachfolgende geometrische Analyse der eingebetteten invarianten Menge betrachten wir eine Lerntechnik namens diffusion maps, die ihre intrinsische Geometrie enthüllt sowie ihre Dimension schätzt. Schließlich wenden wir unsere entwickelten numerischen Methoden an einigen bekannten unendlich-dimensionale dynamischen Systeme an, wie die Mackey-Glass-Gleichung, die Kuramoto-Sivashinsky-Gleichung und die Navier-Stokes-Gleichung."},{"text":"One central aspect in the study of dynamical systems is the analysis of its invariant sets such as the global attractor and (un)stable manifolds. In particular, when the underlying system depends on a parameter it is crucial to efficiently track those set with respect to this parameter. For the computation of invariant sets we rely on numerical algorithms for their approximation but typically those tools can only be applied to finite-dimensional dynamical systems. Thus, in thesis we present a numerical framework for the global dynamical analysis of infinite-dimensional systems. We will use embedding techniques for the definition of the core dynamical system (CDS) which is a dynamically equivalent finite-dimensional system. The CDS is then used for the approximation of related embedded invariant sets, i.e, one-to-one images, by set-oriented numerical methods. For the construction of the CDS it is crucial to choose an appropriate observation map and to design its corresponding inverse. Therefore, we will present suitable numerical realizations of the CDS for DDEs and PDEs. For a subsequent geometric analysis of the embedded invariant set we will consider a manifold learning technique called diffusion maps which reveals its intrinsic geometry and estimates its dimension. Finally, we apply our develop numerical tools on some well-known infinite-dimensional dynamical systems such as the Mackey-Glass equation, the Kuramoto-Sivashinsky equation and the Navier-Stokes equation.","lang":"eng"}],"supervisor":[{"last_name":"Dellnitz ","first_name":"Michael","full_name":"Dellnitz , Michael"},{"full_name":"Koltai, Péter","last_name":"Koltai","first_name":"Péter"}],"citation":{"bibtex":"@book{Gerlach_2021, title={The Computation and Analysis of Invariant Sets of Infinite-Dimensional Systems}, DOI={<a href=\"https://doi.org/10.17619/UNIPB/1-1278\">10.17619/UNIPB/1-1278</a>}, author={Gerlach, Raphael}, year={2021} }","ama":"Gerlach R. <i>The Computation and Analysis of Invariant Sets of Infinite-Dimensional Systems</i>.; 2021. doi:<a href=\"https://doi.org/10.17619/UNIPB/1-1278\">10.17619/UNIPB/1-1278</a>","mla":"Gerlach, Raphael. <i>The Computation and Analysis of Invariant Sets of Infinite-Dimensional Systems</i>. 2021, doi:<a href=\"https://doi.org/10.17619/UNIPB/1-1278\">10.17619/UNIPB/1-1278</a>.","chicago":"Gerlach, Raphael. <i>The Computation and Analysis of Invariant Sets of Infinite-Dimensional Systems</i>, 2021. <a href=\"https://doi.org/10.17619/UNIPB/1-1278\">https://doi.org/10.17619/UNIPB/1-1278</a>.","short":"R. Gerlach, The Computation and Analysis of Invariant Sets of Infinite-Dimensional Systems, 2021.","ieee":"R. Gerlach, <i>The Computation and Analysis of Invariant Sets of Infinite-Dimensional Systems</i>. 2021.","apa":"Gerlach, R. (2021). <i>The Computation and Analysis of Invariant Sets of Infinite-Dimensional Systems</i>. <a href=\"https://doi.org/10.17619/UNIPB/1-1278\">https://doi.org/10.17619/UNIPB/1-1278</a>"},"doi":"10.17619/UNIPB/1-1278","user_id":"32643","language":[{"iso":"eng"}],"_id":"32057","main_file_link":[{"open_access":"1","url":"https://digital.ub.uni-paderborn.de/hs/download/pdf/6214949"}],"date_updated":"2022-06-20T13:40:30Z","author":[{"full_name":"Gerlach, Raphael","first_name":"Raphael","last_name":"Gerlach","id":"32655"}],"title":"The Computation and Analysis of Invariant Sets of Infinite-Dimensional Systems","year":"2021","status":"public"},{"department":[{"_id":"424"}],"type":"book_chapter","date_created":"2022-06-24T09:29:02Z","publication":"Schreiblehrkonzepte an Hochschulen. Fallstudien und Reflexionen zum fachspezifischen Schreibenlehren und -lernen","doi":"10.3278/6004807w277","series_title":"TeachingXchange","language":[{"iso":"ger"}],"main_file_link":[{"url":"https://www.wbv.de/download/shop/download/0/_/0/0/listview/file/-direct%406004807w277/area/openaccess.html?cHash=ab41136af8a1b429df6a2c30b8530251","open_access":"1"}],"intvolume":"         4","date_updated":"2022-07-18T09:15:37Z","publication_status":"published","author":[{"id":"53917","last_name":"Karsten","first_name":"Andrea","full_name":"Karsten, Andrea"}],"year":"2021","title":"Einblicke in explizite und implizite Erwartungen Lehrender an Studierendentexte. Textbasierte Interviews zu Zielen und Erträgen von fachsensiblem Peer-Textfeedback","oa":"1","place":"Bielefeld","citation":{"ama":"Karsten A. Einblicke in explizite und implizite Erwartungen Lehrender an Studierendentexte. Textbasierte Interviews zu Zielen und Erträgen von fachsensiblem Peer-Textfeedback. In: Lahm S, Meyhöfer F, Neumann F, eds. <i>Schreiblehrkonzepte an Hochschulen. Fallstudien und Reflexionen zum fachspezifischen Schreibenlehren und -lernen</i>. Vol 4. TeachingXchange. wbv; 2021:277-288. doi:<a href=\"https://doi.org/10.3278/6004807w277\">10.3278/6004807w277</a>","short":"A. Karsten, in: S. Lahm, F. Meyhöfer, F. Neumann (Eds.), Schreiblehrkonzepte an Hochschulen. Fallstudien und Reflexionen zum fachspezifischen Schreibenlehren und -lernen, wbv, Bielefeld, 2021, pp. 277–288.","chicago":"Karsten, Andrea. “Einblicke in explizite und implizite Erwartungen Lehrender an Studierendentexte. Textbasierte Interviews zu Zielen und Erträgen von fachsensiblem Peer-Textfeedback.” In <i>Schreiblehrkonzepte an Hochschulen. Fallstudien und Reflexionen zum fachspezifischen Schreibenlehren und -lernen</i>, edited by Swantje Lahm, Frank Meyhöfer, and Friederike Neumann, 4:277–88. TeachingXchange. Bielefeld: wbv, 2021. <a href=\"https://doi.org/10.3278/6004807w277\">https://doi.org/10.3278/6004807w277</a>.","bibtex":"@inbook{Karsten_2021, place={Bielefeld}, series={TeachingXchange}, title={Einblicke in explizite und implizite Erwartungen Lehrender an Studierendentexte. Textbasierte Interviews zu Zielen und Erträgen von fachsensiblem Peer-Textfeedback}, volume={4}, DOI={<a href=\"https://doi.org/10.3278/6004807w277\">10.3278/6004807w277</a>}, booktitle={Schreiblehrkonzepte an Hochschulen. Fallstudien und Reflexionen zum fachspezifischen Schreibenlehren und -lernen}, publisher={wbv}, author={Karsten, Andrea}, editor={Lahm, Swantje and Meyhöfer, Frank and Neumann, Friederike}, year={2021}, pages={277–288}, collection={TeachingXchange} }","apa":"Karsten, A. (2021). Einblicke in explizite und implizite Erwartungen Lehrender an Studierendentexte. Textbasierte Interviews zu Zielen und Erträgen von fachsensiblem Peer-Textfeedback. In S. Lahm, F. Meyhöfer, &#38; F. Neumann (Eds.), <i>Schreiblehrkonzepte an Hochschulen. Fallstudien und Reflexionen zum fachspezifischen Schreibenlehren und -lernen</i> (Vol. 4, pp. 277–288). wbv. <a href=\"https://doi.org/10.3278/6004807w277\">https://doi.org/10.3278/6004807w277</a>","mla":"Karsten, Andrea. “Einblicke in explizite und implizite Erwartungen Lehrender an Studierendentexte. Textbasierte Interviews zu Zielen und Erträgen von fachsensiblem Peer-Textfeedback.” <i>Schreiblehrkonzepte an Hochschulen. Fallstudien und Reflexionen zum fachspezifischen Schreibenlehren und -lernen</i>, edited by Swantje Lahm et al., vol. 4, wbv, 2021, pp. 277–88, doi:<a href=\"https://doi.org/10.3278/6004807w277\">10.3278/6004807w277</a>.","ieee":"A. Karsten, “Einblicke in explizite und implizite Erwartungen Lehrender an Studierendentexte. Textbasierte Interviews zu Zielen und Erträgen von fachsensiblem Peer-Textfeedback,” in <i>Schreiblehrkonzepte an Hochschulen. Fallstudien und Reflexionen zum fachspezifischen Schreibenlehren und -lernen</i>, vol. 4, S. Lahm, F. Meyhöfer, and F. Neumann, Eds. Bielefeld: wbv, 2021, pp. 277–288."},"editor":[{"full_name":"Lahm, Swantje","first_name":"Swantje","last_name":"Lahm"},{"last_name":"Meyhöfer","first_name":"Frank","full_name":"Meyhöfer, Frank"},{"full_name":"Neumann, Friederike","last_name":"Neumann","first_name":"Friederike"}],"volume":4,"user_id":"42165","_id":"32150","publisher":"wbv","page":"277 - 288","status":"public"},{"date_created":"2021-09-09T11:49:38Z","file":[{"access_level":"open_access","file_size":571976,"file_name":"RD_2021_HolisticChangePropagation_ShortCompetitivePaper_graessler.pdf","date_updated":"2022-11-11T12:20:11Z","relation":"main_file","content_type":"application/pdf","file_id":"30912","creator":"dpreuss","date_created":"2022-04-19T07:59:22Z"}],"oa":"1","department":[{"_id":"152"}],"type":"conference","citation":{"chicago":"Gräßler, Iris, Christian Oleff, and Daniel Preuß. “Holistic Change Propagation and Impact Analysis in Requirements Management.” edited by Beverly Wagner and Juliette Wilson, 2021.","short":"I. Gräßler, C. Oleff, D. Preuß, in: B. Wagner, J. Wilson (Eds.), 2021.","apa":"Gräßler, I., Oleff, C., &#38; Preuß, D. (2021). <i>Holistic change propagation and impact analysis in requirements management</i> (B. Wagner &#38; J. Wilson, Eds.).","ieee":"I. Gräßler, C. Oleff, and D. Preuß, “Holistic change propagation and impact analysis in requirements management,” Strathclyde/Glasgow, 2021.","ama":"Gräßler I, Oleff C, Preuß D. Holistic change propagation and impact analysis in requirements management. In: Wagner B, Wilson J, eds. ; 2021.","bibtex":"@inproceedings{Gräßler_Oleff_Preuß_2021, title={Holistic change propagation and impact analysis in requirements management}, author={Gräßler, Iris and Oleff, Christian and Preuß, Daniel}, editor={Wagner, Beverly and Wilson, Juliette}, year={2021} }","mla":"Gräßler, Iris, et al. <i>Holistic Change Propagation and Impact Analysis in Requirements Management</i>. Edited by Beverly Wagner and Juliette Wilson, 2021."},"file_date_updated":"2022-11-11T12:20:11Z","abstract":[{"text":"In developing complex technical systems, requirements are subject to continuous change. Systematic and holistic change impact analysis and proactive measures are required for reducing the number of requirement changes and their negative impact. There is no method to analyse the holistic impact of a requirement change in the context of developing complex technical systems. Holistic analysis requires to consider the local effects of requirement changes as well as effects from change propagation. To develop an approach for holistic change propagation and impact analysis, twelve performance goals are defined. Those are derived from a state of research analysis as well as an industry workshop. A three-step method is proposed. Firstly, requirement dependencies that cause change propagation are detected. Secondly, critical requirements are automatically identified based on a Page Rank algorithm. Thirdly, change impact of critical requirements is analysed based on a guideline. Validation proves that ten goals are fulfilled and two are partly fulfilled. The method addresses major shortcomings of preceding research and enables sound decision making for development engineers both before a change occurs and during decision process on a change request. This helps to reduce negative change impact in development projects and the risk of project failure.","lang":"eng"}],"language":[{"iso":"eng"}],"_id":"24017","editor":[{"full_name":"Wagner, Beverly","last_name":"Wagner","first_name":"Beverly"},{"last_name":"Wilson","first_name":"Juliette","full_name":"Wilson, Juliette"}],"ddc":["620"],"user_id":"40253","conference":{"location":"Strathclyde/Glasgow","name":"R&D Management Conference","start_date":"2021-07-07","end_date":"2021-07-08"},"author":[{"id":"47565","full_name":"Gräßler, Iris","last_name":"Gräßler","orcid":"0000-0001-5765-971X","first_name":"Iris"},{"id":"41188","last_name":"Oleff","first_name":"Christian","full_name":"Oleff, Christian"},{"id":"40253","first_name":"Daniel","last_name":"Preuß","full_name":"Preuß, Daniel"}],"year":"2021","title":"Holistic change propagation and impact analysis in requirements management","status":"public","has_accepted_license":"1","date_updated":"2022-11-11T12:20:12Z"},{"main_file_link":[{"open_access":"1","url":"https://eprint.iacr.org/2021/961"}],"_id":"26645","publisher":"IACR eprint","language":[{"iso":"eng"}],"user_id":"477","year":"2021","status":"public","title":"Cryptimeleon: A Library for Fast Prototyping of Privacy-Preserving Cryptographic Schemes","author":[{"id":"27207","first_name":"Jan","last_name":"Bobolz","full_name":"Bobolz, Jan"},{"first_name":"Fabian","last_name":"Eidens","full_name":"Eidens, Fabian","id":"25078"},{"last_name":"Heitjohann","first_name":"Raphael","full_name":"Heitjohann, Raphael"},{"full_name":"Fell, Jeremy","last_name":"Fell","first_name":"Jeremy"}],"date_updated":"2022-11-18T09:38:42Z","date_created":"2021-10-21T07:51:32Z","type":"preprint","department":[{"_id":"64"}],"oa":"1","citation":{"ama":"Bobolz J, Eidens F, Heitjohann R, Fell J. Cryptimeleon: A Library for Fast Prototyping of Privacy-Preserving Cryptographic Schemes. Published online 2021.","bibtex":"@article{Bobolz_Eidens_Heitjohann_Fell_2021, title={Cryptimeleon: A Library for Fast Prototyping of Privacy-Preserving Cryptographic Schemes}, publisher={IACR eprint}, author={Bobolz, Jan and Eidens, Fabian and Heitjohann, Raphael and Fell, Jeremy}, year={2021} }","mla":"Bobolz, Jan, et al. <i>Cryptimeleon: A Library for Fast Prototyping of Privacy-Preserving Cryptographic Schemes</i>. IACR eprint, 2021.","chicago":"Bobolz, Jan, Fabian Eidens, Raphael Heitjohann, and Jeremy Fell. “Cryptimeleon: A Library for Fast Prototyping of Privacy-Preserving Cryptographic Schemes.” IACR eprint, 2021.","short":"J. Bobolz, F. Eidens, R. Heitjohann, J. Fell, (2021).","apa":"Bobolz, J., Eidens, F., Heitjohann, R., &#38; Fell, J. (2021). <i>Cryptimeleon: A Library for Fast Prototyping of Privacy-Preserving Cryptographic Schemes</i>. IACR eprint.","ieee":"J. Bobolz, F. Eidens, R. Heitjohann, and J. Fell, “Cryptimeleon: A Library for Fast Prototyping of Privacy-Preserving Cryptographic Schemes.” IACR eprint, 2021."},"project":[{"_id":"4","name":"SFB 901 - Project Area C"},{"name":"SFB 901 - Project Area T","_id":"82"},{"name":"SFB 901 -Subproject T2","_id":"84"},{"name":"SFB 901: SFB 901","_id":"1"},{"_id":"13","name":"SFB 901 - C1: SFB 901 - Subproject C1"}]},{"_id":"28196","page":"3081","volume":4,"user_id":"477","ddc":["530"],"status":"public","has_accepted_license":"1","oa":"1","citation":{"ieee":"M. Hammer, L. Ebers, and J. Förstner, “Configurable lossless broadband beam splitters for semi-guided waves in integrated silicon photonics,” <i>OSA Continuum</i>, vol. 4, no. 12, p. 3081, 2021, doi: <a href=\"https://doi.org/10.1364/osac.437549\">10.1364/osac.437549</a>.","apa":"Hammer, M., Ebers, L., &#38; Förstner, J. (2021). Configurable lossless broadband beam splitters for semi-guided waves in integrated silicon photonics. <i>OSA Continuum</i>, <i>4</i>(12), 3081. <a href=\"https://doi.org/10.1364/osac.437549\">https://doi.org/10.1364/osac.437549</a>","short":"M. Hammer, L. Ebers, J. Förstner, OSA Continuum 4 (2021) 3081.","chicago":"Hammer, Manfred, Lena Ebers, and Jens Förstner. “Configurable Lossless Broadband Beam Splitters for Semi-Guided Waves in Integrated Silicon Photonics.” <i>OSA Continuum</i> 4, no. 12 (2021): 3081. <a href=\"https://doi.org/10.1364/osac.437549\">https://doi.org/10.1364/osac.437549</a>.","mla":"Hammer, Manfred, et al. “Configurable Lossless Broadband Beam Splitters for Semi-Guided Waves in Integrated Silicon Photonics.” <i>OSA Continuum</i>, vol. 4, no. 12, 2021, p. 3081, doi:<a href=\"https://doi.org/10.1364/osac.437549\">10.1364/osac.437549</a>.","bibtex":"@article{Hammer_Ebers_Förstner_2021, title={Configurable lossless broadband beam splitters for semi-guided waves in integrated silicon photonics}, volume={4}, DOI={<a href=\"https://doi.org/10.1364/osac.437549\">10.1364/osac.437549</a>}, number={12}, journal={OSA Continuum}, author={Hammer, Manfred and Ebers, Lena and Förstner, Jens}, year={2021}, pages={3081} }","ama":"Hammer M, Ebers L, Förstner J. Configurable lossless broadband beam splitters for semi-guided waves in integrated silicon photonics. <i>OSA Continuum</i>. 2021;4(12):3081. doi:<a href=\"https://doi.org/10.1364/osac.437549\">10.1364/osac.437549</a>"},"file_date_updated":"2021-11-30T20:19:15Z","project":[{"_id":"53","name":"TRR 142"},{"name":"TRR 142 - Project Area C","_id":"56"}],"language":[{"iso":"eng"}],"doi":"10.1364/osac.437549","author":[{"id":"48077","full_name":"Hammer, Manfred","orcid":"0000-0002-6331-9348","first_name":"Manfred","last_name":"Hammer"},{"id":"40428","last_name":"Ebers","first_name":"Lena","full_name":"Ebers, Lena"},{"last_name":"Förstner","orcid":"0000-0001-7059-9862","first_name":"Jens","full_name":"Förstner, Jens","id":"158"}],"publication_identifier":{"issn":["2578-7519"]},"year":"2021","title":"Configurable lossless broadband beam splitters for semi-guided waves in integrated silicon photonics","intvolume":"         4","publication_status":"published","date_updated":"2022-11-18T09:58:03Z","date_created":"2021-11-30T20:04:57Z","file":[{"file_id":"28197","content_type":"application/pdf","file_name":"2021-11 Hammer - OSA Continuum - Trenches.pdf","file_size":6618403,"access_level":"open_access","relation":"main_file","date_updated":"2021-11-30T20:19:15Z","date_created":"2021-11-30T20:07:53Z","creator":"fossie"}],"department":[{"_id":"61"},{"_id":"230"},{"_id":"429"}],"type":"journal_article","keyword":["tet_topic_waveguide"],"publication":"OSA Continuum","issue":"12","abstract":[{"lang":"eng","text":"We show that narrow trenches in a high-contrast silicon-photonics slab can act as lossless power dividers for semi-guided waves. Reflectance and transmittance can be easily configured by selecting the trench width. At sufficiently high angles of incidence, the devices are lossless, apart from material attenuation and scattering due to surface roughness. We numerically simulate a series of devices within the full 0-to-1-range of splitting ratios, for semi-guided plane wave incidence as well as for excitation by focused Gaussian wave bundles. Straightforward cascading of the trenches leads to concepts for 1×M-power dividers and a polarization beam splitter."}]},{"date_updated":"2022-11-18T09:59:27Z","has_accepted_license":"1","year":"2021","status":"public","title":"DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning","author":[{"id":"35343","orcid":"0000-0001-8210-4011","last_name":"Schneider","first_name":"Stefan Balthasar","full_name":"Schneider, Stefan Balthasar"},{"id":"126","full_name":"Karl, Holger","last_name":"Karl","first_name":"Holger"},{"full_name":"Khalili, Ramin","first_name":"Ramin","last_name":"Khalili"},{"first_name":"Artur","last_name":"Hecker","full_name":"Hecker, Artur"}],"ddc":["004"],"user_id":"477","_id":"33854","language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"Macrodiversity is a key technique to increase the capacity of mobile networks. It can be realized using coordinated multipoint (CoMP), simultaneously connecting users to multiple overlapping cells. Selecting which users to serve by how many and which cells is NP-hard but needs to happen continuously in real time as users move and channel state changes. Existing approaches often require strict assumptions about or perfect knowledge of the underlying radio system, its resource allocation scheme, or user movements, none of which is readily available in practice.\r\n\r\nInstead, we propose three novel self-learning and self-adapting approaches using model-free deep reinforcement learning (DRL): DeepCoMP, DD-CoMP, and D3-CoMP. DeepCoMP leverages central observations and control of all users to select cells almost optimally. DD-CoMP and D3-CoMP use multi-agent DRL, which allows distributed, robust, and highly scalable coordination. All three approaches learn from experience and self-adapt to varying scenarios, reaching 2x higher Quality of Experience than other approaches. They have very few built-in assumptions and do not need prior system knowledge, making them more robust to change and better applicable in practice than existing approaches."}],"project":[{"name":"SFB 901 - C: SFB 901 - Project Area C","_id":"4"},{"name":"SFB 901 - C4: SFB 901 - Subproject C4","_id":"16"},{"_id":"1","name":"SFB 901: SFB 901"}],"file_date_updated":"2022-10-20T16:41:10Z","citation":{"chicago":"Schneider, Stefan Balthasar, Holger Karl, Ramin Khalili, and Artur Hecker. <i>DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning</i>, 2021.","short":"S.B. Schneider, H. Karl, R. Khalili, A. Hecker, DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning, 2021.","apa":"Schneider, S. B., Karl, H., Khalili, R., &#38; Hecker, A. (2021). <i>DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning</i>.","ieee":"S. B. Schneider, H. Karl, R. Khalili, and A. Hecker, <i>DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning</i>. 2021.","ama":"Schneider SB, Karl H, Khalili R, Hecker A. <i>DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning</i>.; 2021.","bibtex":"@book{Schneider_Karl_Khalili_Hecker_2021, title={DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning}, author={Schneider, Stefan Balthasar and Karl, Holger and Khalili, Ramin and Hecker, Artur}, year={2021} }","mla":"Schneider, Stefan Balthasar, et al. <i>DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning</i>. 2021."},"type":"working_paper","keyword":["mobility management","coordinated multipoint","CoMP","cell selection","resource management","reinforcement learning","multi agent","MARL","self-learning","self-adaptation","QoE"],"oa":"1","department":[{"_id":"75"}],"file":[{"creator":"stschn","date_created":"2022-10-20T16:41:10Z","file_name":"preprint.pdf","access_level":"open_access","file_size":2521656,"relation":"main_file","date_updated":"2022-10-20T16:41:10Z","file_id":"33855","content_type":"application/pdf"}],"date_created":"2022-10-20T16:44:19Z"},{"type":"journal_article","keyword":["Solar irradiance","MERRA 2","Meteonorm","DWD"],"department":[{"_id":"53"}],"file":[{"date_updated":"2022-01-06T13:33:09Z","relation":"main_file","access_level":"closed","file_size":3837152,"file_name":"energies-14-00882 Khatibi Krauter MERRA 2.pdf","content_type":"application/pdf","success":1,"file_id":"29177","creator":"krauter","date_created":"2022-01-06T13:33:09Z"}],"date_created":"2021-02-23T10:18:05Z","abstract":[{"lang":"eng","text":"<jats:p>Fast-growing energy demand of the world makes the researchers focus on finding new energy sources or optimizing already-developed approaches. For an efficient use of solar and wind energy in an energy system, correct design and sizing of a power system is of high importance and improving or optimizing the process of data obtaining for this purpose leads to higher performance and lower cost per unit of energy. It is essential to have the most precise possible estimation of solar and wind energy potential and other local weather parameters in order to fully feed the demand and avoid extra costs. There are various methods for obtaining local data, such as local measurements, official organizational data, satellite obtained, and reanalysis data. In this paper, the Modern-Era Retrospective analysis for Research and Applications dataset version 2 (MERRA-2) dataset provided by NASA is introduced and its performance is evaluated by comparison to various locally measured datasets offered by meteorological institutions such as Meteonorm and Deutscher Wetterdienst (DWD, or Germany’s National Meteorological Service) around the world. After comparison, correlation coefficients from 0.95 to 0.99 are observed for monthly global horizontal irradiance values. In the case of air temperature, correlation coefficients of 0.99 and for wind speed from 0.81 to 0.99 are observed. High correlation with ground measurements and relatively low errors are confirmed, especially for irradiance and temperature values, that makes MERRA-2 a valuable dataset, considering its world coverage and availability.</jats:p>"}],"issue":"4","publication":"Energies","doi":"10.3390/en14040882","main_file_link":[{"open_access":"1","url":"https://www.mdpi.com/1996-1073/14/4/882/htm"}],"article_number":"882","language":[{"iso":"eng"}],"date_updated":"2022-01-06T13:37:34Z","publication_status":"published","intvolume":"        14","article_type":"original","title":"Validation and Performance of Satellite Meteorological Dataset MERRA-2 for Solar and Wind Applications","year":"2021","author":[{"full_name":"Khatibi, Arash","last_name":"Khatibi","first_name":"Arash","id":"43538"},{"id":"28836","last_name":"Krauter","orcid":"0000-0002-3594-260X","first_name":"Stefan","full_name":"Krauter, Stefan"}],"publication_identifier":{"issn":["1996-1073"]},"oa":"1","quality_controlled":"1","file_date_updated":"2022-01-06T13:33:09Z","citation":{"apa":"Khatibi, A., &#38; Krauter, S. (2021). Validation and Performance of Satellite Meteorological Dataset MERRA-2 for Solar and Wind Applications. <i>Energies</i>, <i>14</i>(4), Article 882. <a href=\"https://doi.org/10.3390/en14040882\">https://doi.org/10.3390/en14040882</a>","ieee":"A. Khatibi and S. Krauter, “Validation and Performance of Satellite Meteorological Dataset MERRA-2 for Solar and Wind Applications,” <i>Energies</i>, vol. 14, no. 4, Art. no. 882, 2021, doi: <a href=\"https://doi.org/10.3390/en14040882\">10.3390/en14040882</a>.","chicago":"Khatibi, Arash, and Stefan Krauter. “Validation and Performance of Satellite Meteorological Dataset MERRA-2 for Solar and Wind Applications.” <i>Energies</i> 14, no. 4 (2021). <a href=\"https://doi.org/10.3390/en14040882\">https://doi.org/10.3390/en14040882</a>.","short":"A. Khatibi, S. Krauter, Energies 14 (2021).","mla":"Khatibi, Arash, and Stefan Krauter. “Validation and Performance of Satellite Meteorological Dataset MERRA-2 for Solar and Wind Applications.” <i>Energies</i>, vol. 14, no. 4, 882, MDPI, 2021, doi:<a href=\"https://doi.org/10.3390/en14040882\">10.3390/en14040882</a>.","ama":"Khatibi A, Krauter S. Validation and Performance of Satellite Meteorological Dataset MERRA-2 for Solar and Wind Applications. <i>Energies</i>. 2021;14(4). doi:<a href=\"https://doi.org/10.3390/en14040882\">10.3390/en14040882</a>","bibtex":"@article{Khatibi_Krauter_2021, title={Validation and Performance of Satellite Meteorological Dataset MERRA-2 for Solar and Wind Applications}, volume={14}, DOI={<a href=\"https://doi.org/10.3390/en14040882\">10.3390/en14040882</a>}, number={4882}, journal={Energies}, publisher={MDPI}, author={Khatibi, Arash and Krauter, Stefan}, year={2021} }"},"ddc":["620"],"user_id":"28836","volume":14,"_id":"21265","publisher":"MDPI","has_accepted_license":"1","status":"public"}]