[{"date_created":"2019-07-11T08:25:41Z","type":"journal_article","department":[{"_id":"198"}],"publication":"European Journal of Information Systems","issue":"4","citation":{"ieee":"G. F. Khan and M. Trier, “Assessing the long-term fragmentation of information systems research with a longitudinal multi-network analysis,” <i>European Journal of Information Systems</i>, vol. 28, no. 4, pp. 370–393, 2019.","apa":"Khan, G. F., &#38; Trier, M. (2019). Assessing the long-term fragmentation of information systems research with a longitudinal multi-network analysis. <i>European Journal of Information Systems</i>, <i>28</i>(4), 370–393. <a href=\"https://doi.org/10.1080/0960085x.2018.1547853\">https://doi.org/10.1080/0960085x.2018.1547853</a>","short":"G.F. Khan, M. Trier, European Journal of Information Systems 28 (2019) 370–393.","chicago":"Khan, Gohar Feroz, and Matthias Trier. “Assessing the Long-Term Fragmentation of Information Systems Research with a Longitudinal Multi-Network Analysis.” <i>European Journal of Information Systems</i> 28, no. 4 (2019): 370–93. <a href=\"https://doi.org/10.1080/0960085x.2018.1547853\">https://doi.org/10.1080/0960085x.2018.1547853</a>.","mla":"Khan, Gohar Feroz, and Matthias Trier. “Assessing the Long-Term Fragmentation of Information Systems Research with a Longitudinal Multi-Network Analysis.” <i>European Journal of Information Systems</i>, vol. 28, no. 4, 2019, pp. 370–93, doi:<a href=\"https://doi.org/10.1080/0960085x.2018.1547853\">10.1080/0960085x.2018.1547853</a>.","bibtex":"@article{Khan_Trier_2019, title={Assessing the long-term fragmentation of information systems research with a longitudinal multi-network analysis}, volume={28}, DOI={<a href=\"https://doi.org/10.1080/0960085x.2018.1547853\">10.1080/0960085x.2018.1547853</a>}, number={4}, journal={European Journal of Information Systems}, author={Khan, Gohar Feroz and Trier, Matthias}, year={2019}, pages={370–393} }","ama":"Khan GF, Trier M. Assessing the long-term fragmentation of information systems research with a longitudinal multi-network analysis. <i>European Journal of Information Systems</i>. 2019;28(4):370-393. doi:<a href=\"https://doi.org/10.1080/0960085x.2018.1547853\">10.1080/0960085x.2018.1547853</a>"},"page":"370-393","_id":"10792","language":[{"iso":"eng"}],"doi":"10.1080/0960085x.2018.1547853","user_id":"72744","volume":28,"status":"public","title":"Assessing the long-term fragmentation of information systems research with a longitudinal multi-network analysis","year":"2019","publication_identifier":{"issn":["0960-085X","1476-9344"]},"author":[{"full_name":"Khan, Gohar Feroz","last_name":"Khan","first_name":"Gohar Feroz"},{"id":"72744","full_name":"Trier, Matthias","last_name":"Trier","first_name":"Matthias"}],"date_updated":"2022-01-06T06:50:50Z","publication_status":"published","intvolume":"        28"},{"main_file_link":[{"url":"https://dl.acm.org/doi/pdf/10.1145/3331184.3331327"}],"page":"1117 - 1120","publisher":"ACM","_id":"11709","language":[{"iso":"eng"}],"doi":"10.1145/3331184.3331327","user_id":"82920","title":"Argument Search: Assessing Argument Relevance","year":"2019","status":"public","author":[{"full_name":"Potthast, Martin","first_name":"Martin","last_name":"Potthast"},{"full_name":"Gienapp, Lukas","last_name":"Gienapp","first_name":"Lukas"},{"last_name":"Euchner","first_name":"Florian","full_name":"Euchner, Florian"},{"full_name":"Heilenkötter, Nick","last_name":"Heilenkötter","first_name":"Nick"},{"full_name":"Weidmann, Nico","last_name":"Weidmann","first_name":"Nico"},{"id":"3900","full_name":"Wachsmuth, Henning","first_name":"Henning","last_name":"Wachsmuth"},{"first_name":"Benno","last_name":"Stein","full_name":"Stein, Benno"},{"first_name":"Matthias","last_name":"Hagen","full_name":"Hagen, Matthias"}],"date_updated":"2022-01-06T06:51:06Z","date_created":"2019-07-11T13:09:41Z","type":"conference","department":[{"_id":"600"},{"_id":"568"}],"publication":"42nd International ACM Conference on Research and Development in Information Retrieval (SIGIR 2019)","citation":{"chicago":"Potthast, Martin, Lukas Gienapp, Florian Euchner, Nick Heilenkötter, Nico Weidmann, Henning Wachsmuth, Benno Stein, and Matthias Hagen. “Argument Search: Assessing Argument Relevance.” In <i>42nd International ACM Conference on Research and Development in Information Retrieval (SIGIR 2019)</i>, 1117–20. ACM, 2019. <a href=\"https://doi.org/10.1145/3331184.3331327\">https://doi.org/10.1145/3331184.3331327</a>.","short":"M. Potthast, L. Gienapp, F. Euchner, N. Heilenkötter, N. Weidmann, H. Wachsmuth, B. Stein, M. Hagen, in: 42nd International ACM Conference on Research and Development in Information Retrieval (SIGIR 2019), ACM, 2019, pp. 1117–1120.","apa":"Potthast, M., Gienapp, L., Euchner, F., Heilenkötter, N., Weidmann, N., Wachsmuth, H., … Hagen, M. (2019). Argument Search: Assessing Argument Relevance. In <i>42nd International ACM Conference on Research and Development in Information Retrieval (SIGIR 2019)</i> (pp. 1117–1120). ACM. <a href=\"https://doi.org/10.1145/3331184.3331327\">https://doi.org/10.1145/3331184.3331327</a>","ieee":"M. Potthast <i>et al.</i>, “Argument Search: Assessing Argument Relevance,” in <i>42nd International ACM Conference on Research and Development in Information Retrieval (SIGIR 2019)</i>, 2019, pp. 1117–1120.","ama":"Potthast M, Gienapp L, Euchner F, et al. Argument Search: Assessing Argument Relevance. In: <i>42nd International ACM Conference on Research and Development in Information Retrieval (SIGIR 2019)</i>. ACM; 2019:1117-1120. doi:<a href=\"https://doi.org/10.1145/3331184.3331327\">10.1145/3331184.3331327</a>","bibtex":"@inproceedings{Potthast_Gienapp_Euchner_Heilenkötter_Weidmann_Wachsmuth_Stein_Hagen_2019, title={Argument Search: Assessing Argument Relevance}, DOI={<a href=\"https://doi.org/10.1145/3331184.3331327\">10.1145/3331184.3331327</a>}, booktitle={42nd International ACM Conference on Research and Development in Information Retrieval (SIGIR 2019)}, publisher={ACM}, author={Potthast, Martin and Gienapp, Lukas and Euchner, Florian and Heilenkötter, Nick and Weidmann, Nico and Wachsmuth, Henning and Stein, Benno and Hagen, Matthias}, year={2019}, pages={1117–1120} }","mla":"Potthast, Martin, et al. “Argument Search: Assessing Argument Relevance.” <i>42nd International ACM Conference on Research and Development in Information Retrieval (SIGIR 2019)</i>, ACM, 2019, pp. 1117–20, doi:<a href=\"https://doi.org/10.1145/3331184.3331327\">10.1145/3331184.3331327</a>."}},{"date_created":"2019-07-11T13:29:48Z","type":"review","department":[{"_id":"600"}],"issue":"3","publication":"Computational Linguistics","citation":{"chicago":"Wachsmuth, Henning. “Book Review: Argumentation Mining.” <i>Computational Linguistics</i>. ACL, 2019.","short":"H. Wachsmuth, Computational Linguistics 45 (2019) 603–606.","ieee":"H. Wachsmuth, “Book Review: Argumentation Mining,” <i>Computational Linguistics</i>, vol. 45, no. 3. ACL, pp. 603–606, 2019.","apa":"Wachsmuth, H. (2019). Book Review: Argumentation Mining. <i>Computational Linguistics</i>. ACL.","bibtex":"@article{Wachsmuth_2019, title={Book Review: Argumentation Mining}, volume={45}, number={3}, journal={Computational Linguistics}, publisher={ACL}, author={Wachsmuth, Henning}, year={2019}, pages={603–606} }","ama":"Wachsmuth H. Book Review: Argumentation Mining. <i>Computational Linguistics</i>. 2019;45(3):603-606.","mla":"Wachsmuth, Henning. “Book Review: Argumentation Mining.” <i>Computational Linguistics</i>, vol. 45, no. 3, ACL, 2019, pp. 603–06."},"page":"603 - 606","language":[{"iso":"eng"}],"_id":"11713","publisher":"ACL","user_id":"3900","volume":45,"title":"Book Review: Argumentation Mining","year":"2019","status":"public","author":[{"full_name":"Wachsmuth, Henning","last_name":"Wachsmuth","first_name":"Henning","id":"3900"}],"date_updated":"2022-01-06T06:51:07Z","intvolume":"        45"},{"page":"48-59","main_file_link":[{"url":"https://webis.de/downloads/publications/papers/stein_2019p.pdf"}],"language":[{"iso":"eng"}],"_id":"11714","user_id":"82920","year":"2019","status":"public","title":"Data Acquisition for Argument Search: The args.me Corpus","author":[{"first_name":"Yamen","last_name":"Ajjour","full_name":"Ajjour, Yamen"},{"full_name":"Wachsmuth, Henning","last_name":"Wachsmuth","first_name":"Henning","id":"3900"},{"last_name":" Kiesel","first_name":"Johannes","full_name":" Kiesel, Johannes"},{"last_name":"Potthast","first_name":"Martin","full_name":"Potthast, Martin"},{"full_name":"Hagen, Matthias","last_name":"Hagen","first_name":"Matthias"},{"first_name":"Benno","last_name":"Stein","full_name":"Stein, Benno"}],"date_updated":"2022-01-06T06:51:07Z","date_created":"2019-07-11T13:43:15Z","type":"conference","department":[{"_id":"600"},{"_id":"568"}],"publication":"Proceedings of the 42nd Edition of the German Conference on Artificial Intelligence","citation":{"chicago":"Ajjour, Yamen, Henning Wachsmuth, Johannes  Kiesel, Martin Potthast, Matthias Hagen, and Benno Stein. “Data Acquisition for Argument Search: The Args.Me Corpus.” In <i>Proceedings of the 42nd Edition of the German Conference on Artificial Intelligence</i>, 48–59, 2019.","short":"Y. Ajjour, H. Wachsmuth, J.  Kiesel, M. Potthast, M. Hagen, B. Stein, in: Proceedings of the 42nd Edition of the German Conference on Artificial Intelligence, 2019, pp. 48–59.","apa":"Ajjour, Y., Wachsmuth, H.,  Kiesel, J., Potthast, M., Hagen, M., &#38; Stein, B. (2019). Data Acquisition for Argument Search: The args.me Corpus. In <i>Proceedings of the 42nd Edition of the German Conference on Artificial Intelligence</i> (pp. 48–59).","ieee":"Y. Ajjour, H. Wachsmuth, J.  Kiesel, M. Potthast, M. Hagen, and B. Stein, “Data Acquisition for Argument Search: The args.me Corpus,” in <i>Proceedings of the 42nd Edition of the German Conference on Artificial Intelligence</i>, 2019, pp. 48–59.","ama":"Ajjour Y, Wachsmuth H,  Kiesel J, Potthast M, Hagen M, Stein B. Data Acquisition for Argument Search: The args.me Corpus. In: <i>Proceedings of the 42nd Edition of the German Conference on Artificial Intelligence</i>. ; 2019:48-59.","bibtex":"@inproceedings{Ajjour_Wachsmuth_ Kiesel_Potthast_Hagen_Stein_2019, title={Data Acquisition for Argument Search: The args.me Corpus}, booktitle={Proceedings of the 42nd Edition of the German Conference on Artificial Intelligence}, author={Ajjour, Yamen and Wachsmuth, Henning and  Kiesel, Johannes and Potthast, Martin and Hagen, Matthias and Stein, Benno}, year={2019}, pages={48–59} }","mla":"Ajjour, Yamen, et al. “Data Acquisition for Argument Search: The Args.Me Corpus.” <i>Proceedings of the 42nd Edition of the German Conference on Artificial Intelligence</i>, 2019, pp. 48–59."}},{"abstract":[{"lang":"eng","text":"Advances in electromyographic (EMG) sensor technology and machine learning algorithms have led to an increased research effort into high density EMG-based pattern recognition methods for prosthesis control. With the goal set on an autonomous multi-movement prosthesis capable of performing training and classification of an amputee’s EMG signals, the focus of this paper lies in the acceleration of the embedded signal processing chain. We present two Xilinx Zynq-based architectures for accelerating two inherently different high density EMG-based control algorithms. The first hardware accelerated design achieves speed-ups of up to 4.8 over the software-only solution, allowing for a processing delay lower than the sample period of 1 ms. The second system achieved a speed-up of 5.5 over the software-only version and operates at a still satisfactory low processing delay of up to 15 ms while providing a higher reliability and robustness against electrode shift and noisy channels."}],"publication":"Journal of Parallel and Distributed Computing","type":"journal_article","keyword":["High density electromyography","FPGA acceleration","Medical signal processing","Pattern recognition","Prosthetics"],"department":[{"_id":"78"}],"date_created":"2019-07-12T13:13:55Z","date_updated":"2022-01-06T06:51:13Z","publication_status":"published","intvolume":"       123","title":"Zynq-based acceleration of robust high density myoelectric signal processing","year":"2019","publication_identifier":{"issn":["0743-7315"]},"author":[{"full_name":"Boschmann, Alexander","last_name":"Boschmann","first_name":"Alexander"},{"first_name":"Andreas","last_name":"Agne","full_name":"Agne, Andreas"},{"first_name":"Georg","last_name":"Thombansen","full_name":"Thombansen, Georg"},{"full_name":"Witschen, Linus Matthias","last_name":"Witschen","first_name":"Linus Matthias","id":"49051"},{"full_name":"Kraus, Florian","last_name":"Kraus","first_name":"Florian"},{"full_name":"Platzner, Marco","last_name":"Platzner","first_name":"Marco","id":"398"}],"doi":"10.1016/j.jpdc.2018.07.004","language":[{"iso":"eng"}],"citation":{"chicago":"Boschmann, Alexander, Andreas Agne, Georg Thombansen, Linus Matthias Witschen, Florian Kraus, and Marco Platzner. “Zynq-Based Acceleration of Robust High Density Myoelectric Signal Processing.” <i>Journal of Parallel and Distributed Computing</i> 123 (2019): 77–89. <a href=\"https://doi.org/10.1016/j.jpdc.2018.07.004\">https://doi.org/10.1016/j.jpdc.2018.07.004</a>.","short":"A. Boschmann, A. Agne, G. Thombansen, L.M. Witschen, F. Kraus, M. Platzner, Journal of Parallel and Distributed Computing 123 (2019) 77–89.","ieee":"A. Boschmann, A. Agne, G. Thombansen, L. M. Witschen, F. Kraus, and M. Platzner, “Zynq-based acceleration of robust high density myoelectric signal processing,” <i>Journal of Parallel and Distributed Computing</i>, vol. 123, pp. 77–89, 2019.","apa":"Boschmann, A., Agne, A., Thombansen, G., Witschen, L. M., Kraus, F., &#38; Platzner, M. (2019). Zynq-based acceleration of robust high density myoelectric signal processing. <i>Journal of Parallel and Distributed Computing</i>, <i>123</i>, 77–89. <a href=\"https://doi.org/10.1016/j.jpdc.2018.07.004\">https://doi.org/10.1016/j.jpdc.2018.07.004</a>","bibtex":"@article{Boschmann_Agne_Thombansen_Witschen_Kraus_Platzner_2019, title={Zynq-based acceleration of robust high density myoelectric signal processing}, volume={123}, DOI={<a href=\"https://doi.org/10.1016/j.jpdc.2018.07.004\">10.1016/j.jpdc.2018.07.004</a>}, journal={Journal of Parallel and Distributed Computing}, publisher={Elsevier}, author={Boschmann, Alexander and Agne, Andreas and Thombansen, Georg and Witschen, Linus Matthias and Kraus, Florian and Platzner, Marco}, year={2019}, pages={77–89} }","ama":"Boschmann A, Agne A, Thombansen G, Witschen LM, Kraus F, Platzner M. Zynq-based acceleration of robust high density myoelectric signal processing. <i>Journal of Parallel and Distributed Computing</i>. 2019;123:77-89. doi:<a href=\"https://doi.org/10.1016/j.jpdc.2018.07.004\">10.1016/j.jpdc.2018.07.004</a>","mla":"Boschmann, Alexander, et al. “Zynq-Based Acceleration of Robust High Density Myoelectric Signal Processing.” <i>Journal of Parallel and Distributed Computing</i>, vol. 123, Elsevier, 2019, pp. 77–89, doi:<a href=\"https://doi.org/10.1016/j.jpdc.2018.07.004\">10.1016/j.jpdc.2018.07.004</a>."},"status":"public","user_id":"398","volume":123,"page":"77-89","publisher":"Elsevier","_id":"11950"},{"language":[{"iso":"eng"}],"_id":"11952","doi":"10.1007/978-3-030-23535-2_27","user_id":"9109","conference":{"end_date":"2019-07-31","location":"Orlando, FL, USA","name":"21st International Conference on Human-Computer Interaction","start_date":"2019-07-26"},"author":[{"id":"9109","last_name":"Senft","first_name":"Björn","full_name":"Senft, Björn"},{"last_name":"Rittmeier","first_name":"Florian","full_name":"Rittmeier, Florian","id":"5281"},{"full_name":"Fischer, Holger Gerhard","first_name":"Holger Gerhard","last_name":"Fischer","id":"30457"},{"id":"383","first_name":"Simon","last_name":"Oberthür","full_name":"Oberthür, Simon"}],"publication_identifier":{"isbn":["9783030235345","9783030235352"],"issn":["0302-9743","1611-3349"]},"year":"2019","title":"A Value-Centered Approach for Unique and Novel Software Applications","status":"public","date_updated":"2022-01-06T06:51:13Z","publication_status":"published","place":"Cham","date_created":"2019-07-14T07:57:53Z","department":[{"_id":"66"}],"type":"book_chapter","citation":{"bibtex":"@inbook{Senft_Rittmeier_Fischer_Oberthür_2019, place={Cham}, title={A Value-Centered Approach for Unique and Novel Software Applications}, DOI={<a href=\"https://doi.org/10.1007/978-3-030-23535-2_27\">10.1007/978-3-030-23535-2_27</a>}, booktitle={Design, User Experience, and Usability. Practice and Case Studies}, author={Senft, Björn and Rittmeier, Florian and Fischer, Holger Gerhard and Oberthür, Simon}, year={2019} }","ama":"Senft B, Rittmeier F, Fischer HG, Oberthür S. A Value-Centered Approach for Unique and Novel Software Applications. In: <i>Design, User Experience, and Usability. Practice and Case Studies</i>. Cham; 2019. doi:<a href=\"https://doi.org/10.1007/978-3-030-23535-2_27\">10.1007/978-3-030-23535-2_27</a>","mla":"Senft, Björn, et al. “A Value-Centered Approach for Unique and Novel Software Applications.” <i>Design, User Experience, and Usability. Practice and Case Studies</i>, 2019, doi:<a href=\"https://doi.org/10.1007/978-3-030-23535-2_27\">10.1007/978-3-030-23535-2_27</a>.","short":"B. Senft, F. Rittmeier, H.G. Fischer, S. Oberthür, in: Design, User Experience, and Usability. Practice and Case Studies, Cham, 2019.","chicago":"Senft, Björn, Florian Rittmeier, Holger Gerhard Fischer, and Simon Oberthür. “A Value-Centered Approach for Unique and Novel Software Applications.” In <i>Design, User Experience, and Usability. Practice and Case Studies</i>. Cham, 2019. <a href=\"https://doi.org/10.1007/978-3-030-23535-2_27\">https://doi.org/10.1007/978-3-030-23535-2_27</a>.","ieee":"B. Senft, F. Rittmeier, H. G. Fischer, and S. Oberthür, “A Value-Centered Approach for Unique and Novel Software Applications,” in <i>Design, User Experience, and Usability. Practice and Case Studies</i>, Cham, 2019.","apa":"Senft, B., Rittmeier, F., Fischer, H. G., &#38; Oberthür, S. (2019). A Value-Centered Approach for Unique and Novel Software Applications. In <i>Design, User Experience, and Usability. Practice and Case Studies</i>. Cham. <a href=\"https://doi.org/10.1007/978-3-030-23535-2_27\">https://doi.org/10.1007/978-3-030-23535-2_27</a>"},"publication":"Design, User Experience, and Usability. Practice and Case Studies"},{"external_id":{"pmid":["31050899"]},"citation":{"bibtex":"@article{Frese_Wei_Wang_Huang_Zentgraf_2019, title={Nonreciprocal Asymmetric Polarization Encryption by Layered Plasmonic Metasurfaces}, volume={19}, DOI={<a href=\"https://doi.org/10.1021/acs.nanolett.9b01298\">10.1021/acs.nanolett.9b01298</a>}, number={6}, journal={Nano Letters}, author={Frese, Daniel and Wei, Qunshuo and Wang, Yongtian and Huang, Lingling and Zentgraf, Thomas}, year={2019}, pages={3976–3980} }","ama":"Frese D, Wei Q, Wang Y, Huang L, Zentgraf T. Nonreciprocal Asymmetric Polarization Encryption by Layered Plasmonic Metasurfaces. <i>Nano Letters</i>. 2019;19(6):3976-3980. doi:<a href=\"https://doi.org/10.1021/acs.nanolett.9b01298\">10.1021/acs.nanolett.9b01298</a>","mla":"Frese, Daniel, et al. “Nonreciprocal Asymmetric Polarization Encryption by Layered Plasmonic Metasurfaces.” <i>Nano Letters</i>, vol. 19, no. 6, 2019, pp. 3976–80, doi:<a href=\"https://doi.org/10.1021/acs.nanolett.9b01298\">10.1021/acs.nanolett.9b01298</a>.","chicago":"Frese, Daniel, Qunshuo Wei, Yongtian Wang, Lingling Huang, and Thomas Zentgraf. “Nonreciprocal Asymmetric Polarization Encryption by Layered Plasmonic Metasurfaces.” <i>Nano Letters</i> 19, no. 6 (2019): 3976–80. <a href=\"https://doi.org/10.1021/acs.nanolett.9b01298\">https://doi.org/10.1021/acs.nanolett.9b01298</a>.","short":"D. Frese, Q. Wei, Y. Wang, L. Huang, T. Zentgraf, Nano Letters 19 (2019) 3976–3980.","ieee":"D. Frese, Q. Wei, Y. Wang, L. Huang, and T. Zentgraf, “Nonreciprocal Asymmetric Polarization Encryption by Layered Plasmonic Metasurfaces,” <i>Nano Letters</i>, vol. 19, no. 6, pp. 3976–3980, 2019, doi: <a href=\"https://doi.org/10.1021/acs.nanolett.9b01298\">10.1021/acs.nanolett.9b01298</a>.","apa":"Frese, D., Wei, Q., Wang, Y., Huang, L., &#38; Zentgraf, T. (2019). Nonreciprocal Asymmetric Polarization Encryption by Layered Plasmonic Metasurfaces. <i>Nano Letters</i>, <i>19</i>(6), 3976–3980. <a href=\"https://doi.org/10.1021/acs.nanolett.9b01298\">https://doi.org/10.1021/acs.nanolett.9b01298</a>"},"quality_controlled":"1","project":[{"_id":"54","name":"TRR 142 - Project Area A"},{"_id":"65","name":"TRR 142 - Subproject A8"},{"_id":"53","name":"TRR 142"}],"page":"3976-3980","_id":"11953","funded_apc":"1","user_id":"30525","volume":19,"status":"public","date_created":"2019-07-15T07:55:26Z","type":"journal_article","department":[{"_id":"15"},{"_id":"230"},{"_id":"289"},{"_id":"429"}],"publication":"Nano Letters","issue":"6","abstract":[{"text":"As flexible optical devices that can manipulate the phase and amplitude of light, metasurfaces would clearly benefit from directional optical properties. However, single layer metasurface systems consisting of two-dimensional nanoparticle arrays exhibit only a weak spatial asymmetry perpendicular to the surface and therefore have mostly symmetric transmission features. Here, we present a metasurface design principle for nonreciprocal polarization encryption of holographic images. Our approach is based on a two-layer plasmonic metasurface design that introduces a local asymmetry and generates a bidirectional functionality with full phase and amplitude control of the transmitted light. The encoded hologram is designed to appear in a particular linear cross-polarization channel, while it is disappearing in the reverse propagation direction. Hence, layered metasurface systems can feature asymmetric transmission with full phase and amplitude control and therefore expand the design freedom in nanoscale optical devices toward asymmetric information processing and security features for anticounterfeiting applications.","lang":"eng"}],"language":[{"iso":"eng"}],"pmid":"1","doi":"10.1021/acs.nanolett.9b01298","title":"Nonreciprocal Asymmetric Polarization Encryption by Layered Plasmonic Metasurfaces","year":"2019","publication_identifier":{"issn":["1530-6984","1530-6992"]},"author":[{"full_name":"Frese, Daniel","first_name":"Daniel","last_name":"Frese"},{"full_name":"Wei, Qunshuo","last_name":"Wei","first_name":"Qunshuo"},{"full_name":"Wang, Yongtian","first_name":"Yongtian","last_name":"Wang"},{"last_name":"Huang","first_name":"Lingling","full_name":"Huang, Lingling"},{"orcid":"0000-0002-8662-1101","last_name":"Zentgraf","first_name":"Thomas","full_name":"Zentgraf, Thomas","id":"30525"}],"publication_status":"published","date_updated":"2022-01-06T06:51:13Z","article_type":"original","intvolume":"        19"},{"file_date_updated":"2019-07-16T06:11:30Z","citation":{"ama":"Li T, Wei Q, Reineke B, et al. Reconfigurable metasurface hologram by utilizing addressable dynamic pixels. <i>Optics Express</i>. 2019;27(15):21153-21162. doi:<a href=\"https://doi.org/10.1364/oe.27.021153\">10.1364/oe.27.021153</a>","bibtex":"@article{Li_Wei_Reineke_Walter_Wang_Zentgraf_Huang_2019, title={Reconfigurable metasurface hologram by utilizing addressable dynamic pixels}, volume={27}, DOI={<a href=\"https://doi.org/10.1364/oe.27.021153\">10.1364/oe.27.021153</a>}, number={15}, journal={Optics Express}, author={Li, Tianyou and Wei, Qunshuo and Reineke, Bernhard and Walter, Felicitas and Wang, Yongtian and Zentgraf, Thomas and Huang, Lingling}, year={2019}, pages={21153–21162} }","mla":"Li, Tianyou, et al. “Reconfigurable Metasurface Hologram by Utilizing Addressable Dynamic Pixels.” <i>Optics Express</i>, vol. 27, no. 15, 2019, pp. 21153–62, doi:<a href=\"https://doi.org/10.1364/oe.27.021153\">10.1364/oe.27.021153</a>.","chicago":"Li, Tianyou, Qunshuo Wei, Bernhard Reineke, Felicitas Walter, Yongtian Wang, Thomas Zentgraf, and Lingling Huang. “Reconfigurable Metasurface Hologram by Utilizing Addressable Dynamic Pixels.” <i>Optics Express</i> 27, no. 15 (2019): 21153–62. <a href=\"https://doi.org/10.1364/oe.27.021153\">https://doi.org/10.1364/oe.27.021153</a>.","short":"T. Li, Q. Wei, B. Reineke, F. Walter, Y. Wang, T. Zentgraf, L. Huang, Optics Express 27 (2019) 21153–21162.","apa":"Li, T., Wei, Q., Reineke, B., Walter, F., Wang, Y., Zentgraf, T., &#38; Huang, L. (2019). Reconfigurable metasurface hologram by utilizing addressable dynamic pixels. <i>Optics Express</i>, <i>27</i>(15), 21153–21162. <a href=\"https://doi.org/10.1364/oe.27.021153\">https://doi.org/10.1364/oe.27.021153</a>","ieee":"T. Li <i>et al.</i>, “Reconfigurable metasurface hologram by utilizing addressable dynamic pixels,” <i>Optics Express</i>, vol. 27, no. 15, pp. 21153–21162, 2019."},"quality_controlled":"1","page":"21153-21162","_id":"11955","user_id":"30525","ddc":["530"],"volume":27,"status":"public","has_accepted_license":"1","file":[{"file_name":"OptExpress_Li_2019.pdf","access_level":"closed","file_size":1585168,"relation":"main_file","date_updated":"2019-07-16T06:11:30Z","file_id":"11957","success":1,"content_type":"application/pdf","creator":"zentgraf","date_created":"2019-07-16T06:11:30Z"}],"date_created":"2019-07-16T06:01:18Z","type":"journal_article","department":[{"_id":"15"},{"_id":"230"},{"_id":"289"}],"publication":"Optics Express","issue":"15","language":[{"iso":"eng"}],"doi":"10.1364/oe.27.021153","title":"Reconfigurable metasurface hologram by utilizing addressable dynamic pixels","year":"2019","publication_identifier":{"issn":["1094-4087"]},"author":[{"full_name":"Li, Tianyou","first_name":"Tianyou","last_name":"Li"},{"full_name":"Wei, Qunshuo","first_name":"Qunshuo","last_name":"Wei"},{"last_name":"Reineke","first_name":"Bernhard","full_name":"Reineke, Bernhard"},{"first_name":"Felicitas","last_name":"Walter","full_name":"Walter, Felicitas"},{"first_name":"Yongtian","last_name":"Wang","full_name":"Wang, Yongtian"},{"full_name":"Zentgraf, Thomas","first_name":"Thomas","last_name":"Zentgraf","orcid":"0000-0002-8662-1101","id":"30525"},{"first_name":"Lingling","last_name":"Huang","full_name":"Huang, Lingling"}],"publication_status":"published","date_updated":"2022-01-06T06:51:14Z","article_type":"original","intvolume":"        27"},{"status":"public","has_accepted_license":"1","_id":"11965","user_id":"59789","ddc":["000"],"citation":{"apa":"Drude, L., Heymann, J., &#38; Haeb-Umbach, R. (2019). Unsupervised training of neural mask-based beamforming. In <i>INTERSPEECH 2019, Graz, Austria</i>.","ieee":"L. Drude, J. Heymann, and R. Haeb-Umbach, “Unsupervised training of neural mask-based beamforming,” in <i>INTERSPEECH 2019, Graz, Austria</i>, 2019.","chicago":"Drude, Lukas, Jahn Heymann, and Reinhold Haeb-Umbach. “Unsupervised Training of Neural Mask-Based Beamforming.” In <i>INTERSPEECH 2019, Graz, Austria</i>, 2019.","short":"L. Drude, J. Heymann, R. Haeb-Umbach, in: INTERSPEECH 2019, Graz, Austria, 2019.","mla":"Drude, Lukas, et al. “Unsupervised Training of Neural Mask-Based Beamforming.” <i>INTERSPEECH 2019, Graz, Austria</i>, 2019.","ama":"Drude L, Heymann J, Haeb-Umbach R. Unsupervised training of neural mask-based beamforming. In: <i>INTERSPEECH 2019, Graz, Austria</i>. ; 2019.","bibtex":"@inproceedings{Drude_Heymann_Haeb-Umbach_2019, title={Unsupervised training of neural mask-based beamforming}, booktitle={INTERSPEECH 2019, Graz, Austria}, author={Drude, Lukas and Heymann, Jahn and Haeb-Umbach, Reinhold}, year={2019} }"},"file_date_updated":"2019-08-13T06:41:35Z","project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"oa":"1","author":[{"last_name":"Drude","first_name":"Lukas","full_name":"Drude, Lukas","id":"11213"},{"id":"9168","full_name":"Heymann, Jahn","first_name":"Jahn","last_name":"Heymann"},{"full_name":"Haeb-Umbach, Reinhold","first_name":"Reinhold","last_name":"Haeb-Umbach","id":"242"}],"title":"Unsupervised training of neural mask-based beamforming","year":"2019","date_updated":"2022-01-06T06:51:14Z","language":[{"iso":"eng"}],"publication":"INTERSPEECH 2019, Graz, Austria","abstract":[{"text":"We present an unsupervised training approach for a neural network-based mask estimator in an acoustic beamforming application. The network is trained to maximize a likelihood criterion derived from a spatial mixture model of the observations. It is trained from scratch without requiring any parallel data consisting of degraded input and clean training targets. Thus, training can be carried out on real recordings of noisy speech rather than simulated ones. In contrast to previous work on unsupervised training of neural mask estimators, our approach avoids the need for a possibly pre-trained teacher model entirely. We demonstrate the effectiveness of our approach by speech recognition experiments on two different datasets: one mainly deteriorated by noise (CHiME 4) and one by reverberation (REVERB). The results show that the performance of the proposed system is on par with a supervised system using oracle target masks for training and with a system trained using a model-based teacher.","lang":"eng"}],"date_created":"2019-07-18T09:11:39Z","file":[{"file_id":"12914","content_type":"application/pdf","file_name":"INTERSPEECH_2019_Drude_Paper.pdf","file_size":223413,"access_level":"open_access","relation":"main_file","date_updated":"2019-08-13T06:41:35Z","date_created":"2019-08-13T06:36:44Z","creator":"huesera"}],"department":[{"_id":"54"}],"type":"conference"},{"publication":"2018 IEEE Vehicular Networking Conference (VNC)","citation":{"mla":"Bronner, Fabian, and Christoph Sommer. “Efficient Multi-Channel Simulation of Wireless Communications.” <i>2018 IEEE Vehicular Networking Conference (VNC)</i>, 2019, doi:<a href=\"https://doi.org/10.1109/vnc.2018.8628350\">10.1109/vnc.2018.8628350</a>.","bibtex":"@inproceedings{Bronner_Sommer_2019, title={Efficient Multi-Channel Simulation of Wireless Communications}, DOI={<a href=\"https://doi.org/10.1109/vnc.2018.8628350\">10.1109/vnc.2018.8628350</a>}, booktitle={2018 IEEE Vehicular Networking Conference (VNC)}, author={Bronner, Fabian and Sommer, Christoph}, year={2019} }","ama":"Bronner F, Sommer C. 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Andert, in: Proceedings, Wiesbaden, 2019.","mla":"Reinold, Peter, et al. “Verkehrssimulation Im Hardware-in-the-Loop-Steuergerätetest.” <i>Proceedings</i>, 2019, doi:<a href=\"https://doi.org/10.1007/978-3-658-25294-6_15\">10.1007/978-3-658-25294-6_15</a>.","bibtex":"@inbook{Reinold_Meyer_Buse_Klingler_Sommer_Dressler_Eisenbarth_Andert_2019, place={Wiesbaden}, title={Verkehrssimulation im Hardware-in-the-Loop-Steuergerätetest}, DOI={<a href=\"https://doi.org/10.1007/978-3-658-25294-6_15\">10.1007/978-3-658-25294-6_15</a>}, booktitle={Proceedings}, author={Reinold, Peter and Meyer, Norbert and Buse, Dominik and Klingler, Florian and Sommer, Christoph and Dressler, Falko and Eisenbarth, Markus and Andert, Jakob}, year={2019} }","ama":"Reinold P, Meyer N, Buse D, et al. Verkehrssimulation im Hardware-in-the-Loop-Steuergerätetest. In: <i>Proceedings</i>. Wiesbaden; 2019. doi:<a href=\"https://doi.org/10.1007/978-3-658-25294-6_15\">10.1007/978-3-658-25294-6_15</a>"},"publication":"Proceedings"},{"title":"Veins: The Open Source Vehicular Network Simulation Framework","status":"public","year":"2019","author":[{"first_name":"Christoph","last_name":"Sommer","orcid":"0000-0002-4336-7350","full_name":"Sommer, Christoph","id":"49154"},{"full_name":"Eckhoff, David","first_name":"David","last_name":"Eckhoff"},{"full_name":"Brummer, Alexander","first_name":"Alexander","last_name":"Brummer"},{"full_name":"Buse, Dominik S.","last_name":"Buse","first_name":"Dominik S."},{"last_name":"Hagenauer","first_name":"Florian","full_name":"Hagenauer, Florian"},{"last_name":"Joerer","first_name":"Stefan","full_name":"Joerer, Stefan"},{"last_name":"Segata","first_name":"Michele","full_name":"Segata, Michele"}],"publication_identifier":{"issn":["2522-8595","2522-8609"],"isbn":["9783030128418","9783030128425"]},"publication_status":"published","date_updated":"2022-01-06T06:51:16Z","_id":"12072","language":[{"iso":"eng"}],"user_id":"49154","doi":"10.1007/978-3-030-12842-5_6","publication":"Recent Advances in Network Simulation","citation":{"short":"C. Sommer, D. Eckhoff, A. Brummer, D.S. Buse, F. Hagenauer, S. Joerer, M. Segata, in: Recent Advances in Network Simulation, Cham, 2019.","chicago":"Sommer, Christoph, David Eckhoff, Alexander Brummer, Dominik S. Buse, Florian Hagenauer, Stefan Joerer, and Michele Segata. “Veins: The Open Source Vehicular Network Simulation Framework.” In <i>Recent Advances in Network Simulation</i>. Cham, 2019. <a href=\"https://doi.org/10.1007/978-3-030-12842-5_6\">https://doi.org/10.1007/978-3-030-12842-5_6</a>.","apa":"Sommer, C., Eckhoff, D., Brummer, A., Buse, D. S., Hagenauer, F., Joerer, S., &#38; Segata, M. (2019). Veins: The Open Source Vehicular Network Simulation Framework. In <i>Recent Advances in Network Simulation</i>. Cham. <a href=\"https://doi.org/10.1007/978-3-030-12842-5_6\">https://doi.org/10.1007/978-3-030-12842-5_6</a>","ieee":"C. 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Cham; 2019. doi:<a href=\"https://doi.org/10.1007/978-3-030-12842-5_6\">10.1007/978-3-030-12842-5_6</a>","bibtex":"@inbook{Sommer_Eckhoff_Brummer_Buse_Hagenauer_Joerer_Segata_2019, place={Cham}, title={Veins: The Open Source Vehicular Network Simulation Framework}, DOI={<a href=\"https://doi.org/10.1007/978-3-030-12842-5_6\">10.1007/978-3-030-12842-5_6</a>}, booktitle={Recent Advances in Network Simulation}, author={Sommer, Christoph and Eckhoff, David and Brummer, Alexander and Buse, Dominik S. and Hagenauer, Florian and Joerer, Stefan and Segata, Michele}, year={2019} }","mla":"Sommer, Christoph, et al. “Veins: The Open Source Vehicular Network Simulation Framework.” <i>Recent Advances in Network Simulation</i>, 2019, doi:<a href=\"https://doi.org/10.1007/978-3-030-12842-5_6\">10.1007/978-3-030-12842-5_6</a>."},"date_created":"2019-07-18T09:55:53Z","place":"Cham","type":"book_chapter","department":[{"_id":"589"}]},{"status":"public","year":"2019","title":"A Context-aware Virtual Reality First Aid Training Application","author":[{"full_name":"Yigitbas, Enes","last_name":"Yigitbas","orcid":"0000-0002-5967-833X","first_name":"Enes","id":"8447"},{"last_name":"Heindörfer","first_name":"Joshua","full_name":"Heindörfer, Joshua"},{"id":"107","first_name":"Gregor","last_name":"Engels","full_name":"Engels, Gregor"}],"date_updated":"2022-01-06T06:51:16Z","page":"885--888","publisher":"ACM","_id":"12076","language":[{"iso":"eng"}],"user_id":"8447","publication":"Proceedings of the Mensch und Computer 2019 (MuC ’19)","citation":{"ama":"Yigitbas E, Heindörfer J, Engels G. A Context-aware Virtual Reality First Aid Training Application. In: <i>Proceedings of the Mensch Und Computer 2019 (MuC ’19)</i>. ACM; 2019:885--888.","bibtex":"@inproceedings{Yigitbas_Heindörfer_Engels_2019, title={A Context-aware Virtual Reality First Aid Training Application}, booktitle={Proceedings of the Mensch und Computer 2019 (MuC ’19)}, publisher={ACM}, author={Yigitbas, Enes and Heindörfer, Joshua and Engels, Gregor}, year={2019}, pages={885--888} }","mla":"Yigitbas, Enes, et al. “A Context-Aware Virtual Reality First Aid Training Application.” <i>Proceedings of the Mensch Und Computer 2019 (MuC ’19)</i>, ACM, 2019, pp. 885--888.","short":"E. Yigitbas, J. Heindörfer, G. Engels, in: Proceedings of the Mensch Und Computer 2019 (MuC ’19), ACM, 2019, pp. 885--888.","chicago":"Yigitbas, Enes, Joshua Heindörfer, and Gregor Engels. “A Context-Aware Virtual Reality First Aid Training Application.” In <i>Proceedings of the Mensch Und Computer 2019 (MuC ’19)</i>, 885--888. ACM, 2019.","apa":"Yigitbas, E., Heindörfer, J., &#38; Engels, G. (2019). A Context-aware Virtual Reality First Aid Training Application. In <i>Proceedings of the Mensch und Computer 2019 (MuC ’19)</i> (pp. 885--888). ACM.","ieee":"E. Yigitbas, J. Heindörfer, and G. Engels, “A Context-aware Virtual Reality First Aid Training Application,” in <i>Proceedings of the Mensch und Computer 2019 (MuC ’19)</i>, 2019, pp. 885--888."},"date_created":"2019-07-18T13:59:33Z","type":"conference","department":[{"_id":"66"},{"_id":"534"}]},{"publication_status":"submitted","date_updated":"2022-01-06T06:51:17Z","has_accepted_license":"1","year":"2019","title":"Steuerkomplexität im Vergleich zwischen Deutschland und Österreich – Eine Analyse des Status quo","status":"public","author":[{"first_name":"Thomas","last_name":"Hoppe","full_name":"Hoppe, Thomas","id":"22671"},{"full_name":"Rechbauer, Martina","last_name":"Rechbauer","first_name":"Martina"},{"last_name":"Sturm","first_name":"Susann","full_name":"Sturm, Susann"}],"user_id":"68607","ddc":["330"],"language":[{"iso":"ger"}],"_id":"12077","abstract":[{"lang":"ger","text":"Die Komplexität von Steuersystemen gewinnt in der Debatte um den internationalen Steuerwettbewerb zunehmend an Bedeutung. Im vorliegenden Beitrag erfolgt, basierend auf den Daten, die dem Tax Complexity Index (www.taxcomplexity.org) zugrunde liegen, eine umfassende Gegenüberstellung der Komplexität der Steuersysteme von Deutschland und Öster-reich unter Berücksichtigung der Mittelwerte aller Länder. Die Steuergesetze weisen sowohl in Deutschland als auch in Österreich einen verhältnismäßig hohen Grad an Komplexität auf. Bei den steuerlichen Rahmenbedingungen fällt der Grad an Komplexität in beiden Ländern dagegen niedrig aus, wobei Österreich im Durchschnitt weniger komplex ist als Deutschland."}],"project":[{"name":"Der Einfluss von steuerlicher Regulierung auf multinationale Unternehmen","grant_number":"P01","_id":"37"}],"file_date_updated":"2019-07-18T22:05:23Z","citation":{"bibtex":"@book{Hoppe_Rechbauer_Sturm, title={Steuerkomplexität im Vergleich zwischen Deutschland und Österreich – Eine Analyse des Status quo}, author={Hoppe, Thomas and Rechbauer, Martina and Sturm, Susann} }","ama":"Hoppe T, Rechbauer M, Sturm S. <i>Steuerkomplexität im Vergleich zwischen Deutschland und Österreich – Eine Analyse des Status quo</i>.","mla":"Hoppe, Thomas, et al. <i>Steuerkomplexität im Vergleich zwischen Deutschland und Österreich – Eine Analyse des Status quo</i>.","short":"T. Hoppe, M. Rechbauer, S. Sturm, Steuerkomplexität im Vergleich zwischen Deutschland und Österreich – Eine Analyse des Status quo, n.d.","chicago":"Hoppe, Thomas, Martina Rechbauer, and Susann Sturm. <i>Steuerkomplexität im Vergleich zwischen Deutschland und Österreich – Eine Analyse des Status quo</i>, n.d.","ieee":"T. Hoppe, M. Rechbauer, and S. Sturm, <i>Steuerkomplexität im Vergleich zwischen Deutschland und Österreich – Eine Analyse des Status quo</i>. .","apa":"Hoppe, T., Rechbauer, M., &#38; Sturm, S. (n.d.). <i>Steuerkomplexität im Vergleich zwischen Deutschland und Österreich – Eine Analyse des Status quo</i>."},"type":"working_paper","department":[{"_id":"187"}],"file":[{"file_id":"12078","success":1,"content_type":"application/pdf","relation":"main_file","date_updated":"2019-07-18T22:05:23Z","file_name":"Hoppe Rechbauer Sturm 2019.pdf","file_size":679552,"access_level":"closed","date_created":"2019-07-18T22:05:23Z","creator":"hoppet"}],"date_created":"2019-07-18T22:07:02Z"},{"author":[{"id":"22704","full_name":"Feldkord, Björn","first_name":"Björn","last_name":"Feldkord"},{"id":"39241","full_name":"Knollmann, Till","orcid":"0000-0003-2014-4696","first_name":"Till","last_name":"Knollmann"},{"full_name":"Malatyali, Manuel","first_name":"Manuel","last_name":"Malatyali"},{"full_name":"Meyer auf der Heide, Friedhelm","last_name":"Meyer auf der Heide","first_name":"Friedhelm","id":"15523"}],"year":"2019","title":"Managing Multiple Mobile Resources","status":"public","date_updated":"2022-01-06T06:51:20Z","publication_status":"published","language":[{"iso":"eng"}],"_id":"12870","publisher":"Springer","page":"120 - 137","doi":"10.1007/978-3-030-39479-0_9","user_id":"22704","citation":{"mla":"Feldkord, Björn, et al. “Managing Multiple Mobile Resources.” <i>Proceedings of the 17th Workshop on Approximation and Online Algorithms (WAOA)</i>, Springer, 2019, pp. 120–37, doi:<a href=\"https://doi.org/10.1007/978-3-030-39479-0_9\">10.1007/978-3-030-39479-0_9</a>.","ama":"Feldkord B, Knollmann T, Malatyali M, Meyer auf der Heide F. Managing Multiple Mobile Resources. In: <i>Proceedings of the 17th Workshop on Approximation and Online Algorithms (WAOA)</i>. Springer; 2019:120-137. doi:<a href=\"https://doi.org/10.1007/978-3-030-39479-0_9\">10.1007/978-3-030-39479-0_9</a>","bibtex":"@inproceedings{Feldkord_Knollmann_Malatyali_Meyer auf der Heide_2019, title={Managing Multiple Mobile Resources}, DOI={<a href=\"https://doi.org/10.1007/978-3-030-39479-0_9\">10.1007/978-3-030-39479-0_9</a>}, booktitle={Proceedings of the 17th Workshop on Approximation and Online Algorithms (WAOA)}, publisher={Springer}, author={Feldkord, Björn and Knollmann, Till and Malatyali, Manuel and Meyer auf der Heide, Friedhelm}, year={2019}, pages={120–137} }","apa":"Feldkord, B., Knollmann, T., Malatyali, M., &#38; Meyer auf der Heide, F. (2019). Managing Multiple Mobile Resources. In <i>Proceedings of the 17th Workshop on Approximation and Online Algorithms (WAOA)</i> (pp. 120–137). Springer. <a href=\"https://doi.org/10.1007/978-3-030-39479-0_9\">https://doi.org/10.1007/978-3-030-39479-0_9</a>","ieee":"B. Feldkord, T. Knollmann, M. Malatyali, and F. Meyer auf der Heide, “Managing Multiple Mobile Resources,” in <i>Proceedings of the 17th Workshop on Approximation and Online Algorithms (WAOA)</i>, 2019, pp. 120–137.","chicago":"Feldkord, Björn, Till Knollmann, Manuel Malatyali, and Friedhelm Meyer auf der Heide. “Managing Multiple Mobile Resources.” In <i>Proceedings of the 17th Workshop on Approximation and Online Algorithms (WAOA)</i>, 120–37. Springer, 2019. <a href=\"https://doi.org/10.1007/978-3-030-39479-0_9\">https://doi.org/10.1007/978-3-030-39479-0_9</a>.","short":"B. Feldkord, T. Knollmann, M. Malatyali, F. Meyer auf der Heide, in: Proceedings of the 17th Workshop on Approximation and Online Algorithms (WAOA), Springer, 2019, pp. 120–137."},"publication":"Proceedings of the 17th Workshop on Approximation and Online Algorithms (WAOA)","project":[{"name":"SFB 901","_id":"1"},{"_id":"2","name":"SFB 901 - Project Area A"},{"name":"SFB 901 - Subproject A1","_id":"5"}],"date_created":"2019-07-22T09:00:05Z","external_id":{"arxiv":["1907.09834"]},"department":[{"_id":"63"}],"type":"conference"},{"file_date_updated":"2019-08-14T07:19:13Z","publication":"ICASSP 2019, Brighton, UK","citation":{"bibtex":"@inproceedings{Drude_Hasenklever_Haeb-Umbach_2019, title={Unsupervised Training of a Deep Clustering Model for Multichannel Blind Source Separation}, booktitle={ICASSP 2019, Brighton, UK}, author={Drude, Lukas and Hasenklever, Daniel and Haeb-Umbach, Reinhold}, year={2019} }","ama":"Drude L, Hasenklever D, Haeb-Umbach R. Unsupervised Training of a Deep Clustering Model for Multichannel Blind Source Separation. In: <i>ICASSP 2019, Brighton, UK</i>. ; 2019.","mla":"Drude, Lukas, et al. “Unsupervised Training of a Deep Clustering Model for Multichannel Blind Source Separation.” <i>ICASSP 2019, Brighton, UK</i>, 2019.","short":"L. Drude, D. Hasenklever, R. Haeb-Umbach, in: ICASSP 2019, Brighton, UK, 2019.","chicago":"Drude, Lukas, Daniel Hasenklever, and Reinhold Haeb-Umbach. “Unsupervised Training of a Deep Clustering Model for Multichannel Blind Source Separation.” In <i>ICASSP 2019, Brighton, UK</i>, 2019.","ieee":"L. Drude, D. Hasenklever, and R. Haeb-Umbach, “Unsupervised Training of a Deep Clustering Model for Multichannel Blind Source Separation,” in <i>ICASSP 2019, Brighton, UK</i>, 2019.","apa":"Drude, L., Hasenklever, D., &#38; Haeb-Umbach, R. (2019). Unsupervised Training of a Deep Clustering Model for Multichannel Blind Source Separation. In <i>ICASSP 2019, Brighton, UK</i>."},"abstract":[{"lang":"eng","text":"We propose a training scheme to train neural network-based source separation algorithms from scratch when parallel clean data is unavailable. In particular, we demonstrate that an unsupervised spatial clustering algorithm is sufficient to guide the training of a deep clustering system. We argue that previous work on deep clustering requires strong supervision and elaborate on why this is a limitation. We demonstrate that (a) the single-channel deep clustering system trained according to the proposed scheme alone is able to achieve a similar performance as the multi-channel teacher in terms of word error rates and (b) initializing the spatial clustering approach with the deep clustering result yields a relative word error rate reduction of 26% over the unsupervised teacher."}],"project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"file":[{"creator":"huesera","date_created":"2019-08-14T07:19:13Z","file_name":"ICASSP_2019_Drude_Paper.pdf","file_size":368225,"access_level":"open_access","relation":"main_file","date_updated":"2019-08-14T07:19:13Z","file_id":"12925","content_type":"application/pdf"}],"date_created":"2019-07-23T07:37:54Z","type":"conference","department":[{"_id":"54"}],"oa":"1","status":"public","year":"2019","title":"Unsupervised Training of a Deep Clustering Model for Multichannel Blind Source Separation","author":[{"id":"11213","last_name":"Drude","first_name":"Lukas","full_name":"Drude, Lukas"},{"full_name":"Hasenklever, Daniel","last_name":"Hasenklever","first_name":"Daniel"},{"full_name":"Haeb-Umbach, Reinhold","last_name":"Haeb-Umbach","first_name":"Reinhold","id":"242"}],"date_updated":"2022-01-06T06:51:21Z","has_accepted_license":"1","language":[{"iso":"eng"}],"_id":"12874","user_id":"59789","ddc":["000"]},{"oa":"1","department":[{"_id":"54"}],"type":"conference","date_created":"2019-07-23T07:42:26Z","file":[{"date_updated":"2019-12-17T07:28:06Z","relation":"main_file","access_level":"open_access","file_size":199109,"file_name":"ICASSP_2019_Heymann_Paper.pdf","content_type":"application/pdf","file_id":"15334","creator":"huesera","date_created":"2019-12-17T07:28:06Z"}],"project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"abstract":[{"text":"Signal dereverberation using the Weighted Prediction Error (WPE) method has been proven to be an effective means to raise the accuracy of far-field speech recognition. First proposed as an iterative algorithm, follow-up works have reformulated it as a recursive least squares algorithm and therefore enabled its use in online applications. For this algorithm, the estimation of the power spectral density (PSD) of the anechoic signal plays an important role and strongly influences its performance. Recently, we showed that using a neural network PSD estimator leads to improved performance for online automatic speech recognition. This, however, comes at a price. To train the network, we require parallel data, i.e., utterances simultaneously available in clean and reverberated form. Here we propose to overcome this limitation by training the network jointly with the acoustic model of the speech recognizer. To be specific, the gradients computed from the cross-entropy loss between the target senone sequence and the acoustic model network output is backpropagated through the complex-valued dereverberation filter estimation to the neural network for PSD estimation. Evaluation on two databases demonstrates improved performance for on-line processing scenarios while imposing fewer requirements on the available training data and thus widening the range of applications.","lang":"eng"}],"citation":{"ieee":"J. Heymann, L. Drude, R. Haeb-Umbach, K. Kinoshita, and T. Nakatani, “Joint Optimization of Neural Network-based WPE Dereverberation and Acoustic Model for Robust Online ASR,” in <i>ICASSP 2019, Brighton, UK</i>, 2019.","apa":"Heymann, J., Drude, L., Haeb-Umbach, R., Kinoshita, K., &#38; Nakatani, T. (2019). Joint Optimization of Neural Network-based WPE Dereverberation and Acoustic Model for Robust Online ASR. In <i>ICASSP 2019, Brighton, UK</i>.","chicago":"Heymann, Jahn, Lukas Drude, Reinhold Haeb-Umbach, Keisuke Kinoshita, and Tomohiro Nakatani. “Joint Optimization of Neural Network-Based WPE Dereverberation and Acoustic Model for Robust Online ASR.” In <i>ICASSP 2019, Brighton, UK</i>, 2019.","short":"J. Heymann, L. Drude, R. Haeb-Umbach, K. Kinoshita, T. Nakatani, in: ICASSP 2019, Brighton, UK, 2019.","mla":"Heymann, Jahn, et al. “Joint Optimization of Neural Network-Based WPE Dereverberation and Acoustic Model for Robust Online ASR.” <i>ICASSP 2019, Brighton, UK</i>, 2019.","bibtex":"@inproceedings{Heymann_Drude_Haeb-Umbach_Kinoshita_Nakatani_2019, title={Joint Optimization of Neural Network-based WPE Dereverberation and Acoustic Model for Robust Online ASR}, booktitle={ICASSP 2019, Brighton, UK}, author={Heymann, Jahn and Drude, Lukas and Haeb-Umbach, Reinhold and Kinoshita, Keisuke and Nakatani, Tomohiro}, year={2019} }","ama":"Heymann J, Drude L, Haeb-Umbach R, Kinoshita K, Nakatani T. Joint Optimization of Neural Network-based WPE Dereverberation and Acoustic Model for Robust Online ASR. In: <i>ICASSP 2019, Brighton, UK</i>. ; 2019."},"publication":"ICASSP 2019, Brighton, UK","file_date_updated":"2019-12-17T07:28:06Z","ddc":["000"],"user_id":"59789","language":[{"iso":"eng"}],"_id":"12875","has_accepted_license":"1","date_updated":"2022-01-06T06:51:22Z","author":[{"full_name":"Heymann, Jahn","first_name":"Jahn","last_name":"Heymann","id":"9168"},{"full_name":"Drude, Lukas","first_name":"Lukas","last_name":"Drude","id":"11213"},{"full_name":"Haeb-Umbach, Reinhold","first_name":"Reinhold","last_name":"Haeb-Umbach","id":"242"},{"first_name":"Keisuke","last_name":"Kinoshita","full_name":"Kinoshita, Keisuke"},{"first_name":"Tomohiro","last_name":"Nakatani","full_name":"Nakatani, Tomohiro"}],"title":"Joint Optimization of Neural Network-based WPE Dereverberation and Acoustic Model for Robust Online ASR","status":"public","year":"2019"},{"type":"conference","oa":"1","department":[{"_id":"54"}],"file":[{"file_name":"JournalofStatisticalSoftware_2019_Drude_Paper.pdf","file_size":1522964,"access_level":"open_access","relation":"main_file","date_updated":"2019-08-14T07:16:05Z","file_id":"12923","content_type":"application/pdf","creator":"huesera","date_created":"2019-08-14T07:16:05Z"}],"date_created":"2019-07-23T07:44:59Z","abstract":[{"lang":"eng","text":"In this paper, we present libDirectional, a MATLAB library for directional statistics and directional estimation. It supports a variety of commonly used distributions on the unit circle, such as the von Mises, wrapped normal, and wrapped Cauchy distributions. Furthermore, various distributions on higher-dimensional manifolds such as the unit hypersphere and the hypertorus are available. Based on these distributions, several recursive filtering algorithms in libDirectional allow estimation on these manifolds. The functionality is implemented in a clear, well-documented, and object-oriented structure that is both easy to use and easy to extend."}],"publication":"Journal of Statistical Software 89(4)","file_date_updated":"2019-08-14T07:16:05Z","citation":{"ieee":"G. Kurz <i>et al.</i>, “Directional Statistics and Filtering Using libDirectional,” in <i>Journal of Statistical Software 89(4)</i>, 2019.","apa":"Kurz, G., Gilitschenski, I., Pfaff, F., Drude, L., Hanebeck, U. D., Haeb-Umbach, R., &#38; Siegwart, R. Y. (2019). Directional Statistics and Filtering Using libDirectional. In <i>Journal of Statistical Software 89(4)</i>.","mla":"Kurz, Gerhard, et al. “Directional Statistics and Filtering Using LibDirectional.” <i>Journal of Statistical Software 89(4)</i>, 2019.","bibtex":"@inproceedings{Kurz_Gilitschenski_Pfaff_Drude_Hanebeck_Haeb-Umbach_Siegwart_2019, title={Directional Statistics and Filtering Using libDirectional}, booktitle={Journal of Statistical Software 89(4)}, author={Kurz, Gerhard and Gilitschenski, Igor and Pfaff, Florian and Drude, Lukas and Hanebeck, Uwe D. and Haeb-Umbach, Reinhold and Siegwart, Roland Y.}, year={2019} }","chicago":"Kurz, Gerhard, Igor Gilitschenski, Florian Pfaff, Lukas Drude, Uwe D. Hanebeck, Reinhold Haeb-Umbach, and Roland Y. Siegwart. “Directional Statistics and Filtering Using LibDirectional.” In <i>Journal of Statistical Software 89(4)</i>, 2019.","ama":"Kurz G, Gilitschenski I, Pfaff F, et al. Directional Statistics and Filtering Using libDirectional. In: <i>Journal of Statistical Software 89(4)</i>. ; 2019.","short":"G. Kurz, I. Gilitschenski, F. Pfaff, L. Drude, U.D. Hanebeck, R. Haeb-Umbach, R.Y. Siegwart, in: Journal of Statistical Software 89(4), 2019."},"ddc":["000"],"user_id":"59789","language":[{"iso":"eng"}],"_id":"12876","date_updated":"2022-01-06T06:51:22Z","has_accepted_license":"1","title":"Directional Statistics and Filtering Using libDirectional","year":"2019","status":"public","author":[{"full_name":"Kurz, Gerhard","first_name":"Gerhard","last_name":"Kurz"},{"full_name":"Gilitschenski, Igor","last_name":"Gilitschenski","first_name":"Igor"},{"full_name":"Pfaff, Florian","first_name":"Florian","last_name":"Pfaff"},{"id":"11213","full_name":"Drude, Lukas","last_name":"Drude","first_name":"Lukas"},{"last_name":"Hanebeck","first_name":"Uwe D.","full_name":"Hanebeck, Uwe D."},{"first_name":"Reinhold","last_name":"Haeb-Umbach","full_name":"Haeb-Umbach, Reinhold","id":"242"},{"full_name":"Siegwart, Roland Y.","last_name":"Siegwart","first_name":"Roland Y."}]},{"date_updated":"2022-01-06T06:51:22Z","year":"2019","status":"public","title":"Sparse Adaptation of Distributed Blind Source Separation in Acoustic Sensor Networks","author":[{"full_name":"Guenther, Michael","last_name":"Guenther","first_name":"Michael"},{"id":"65718","last_name":"Afifi","first_name":"Haitham","full_name":"Afifi, Haitham"},{"first_name":"Andreas","last_name":"Brendel","full_name":"Brendel, Andreas"},{"full_name":"Karl, Holger","first_name":"Holger","last_name":"Karl","id":"126"},{"full_name":"Kellermann, Walter","last_name":"Kellermann","first_name":"Walter"}],"user_id":"65718","language":[{"iso":"eng"}],"_id":"12880","abstract":[{"text":"By distributing the computational load over the nodes of a Wireless Acoustic Sensor Network (WASN), the real-time capability of the TRINICON (TRIple-N-Independent component analysis for CONvolutive mixtures) framework for Blind Source Separation (BSS) can be ensured, even if the individual network nodes are not powerful enough to run TRINICON in real-time by themselves. To optimally utilize the limited computing power and data rate in WASNs, the MARVELO (Multicast-Aware Routing for Virtual network Embedding with Loops in Overlays) framework is expanded for use with TRINICON, while a feature-based selection scheme is proposed to exploit the most beneficial parts of the input signal for adapting the demixing system. The simulation results of realistic scenarios show only a minor degradation of the separation performance even in heavily resource-limited situations.","lang":"eng"}],"project":[{"name":"Akustische Sensornetzwerke - Teilprojekt ","_id":"27"},{"name":"Akustische Sensornetzwerke - Teilprojekt \"Verteilte akustische Signalverarbeitung über funkbasierte Sensornetzwerke","_id":"27"}],"publication":"2019 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) (WASPAA 2019)","citation":{"short":"M. Guenther, H. Afifi, A. Brendel, H. Karl, W. Kellermann, in: 2019 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) (WASPAA 2019), New Paltz, USA, 2019.","chicago":"Guenther, Michael, Haitham Afifi, Andreas Brendel, Holger Karl, and Walter Kellermann. “Sparse Adaptation of Distributed Blind Source Separation in Acoustic Sensor Networks.” In <i>2019 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) (WASPAA 2019)</i>. New Paltz, USA, 2019.","ieee":"M. Guenther, H. Afifi, A. Brendel, H. Karl, and W. Kellermann, “Sparse Adaptation of Distributed Blind Source Separation in Acoustic Sensor Networks,” in <i>2019 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) (WASPAA 2019)</i>, 2019.","apa":"Guenther, M., Afifi, H., Brendel, A., Karl, H., &#38; Kellermann, W. (2019). Sparse Adaptation of Distributed Blind Source Separation in Acoustic Sensor Networks. In <i>2019 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) (WASPAA 2019)</i>. New Paltz, USA.","bibtex":"@inproceedings{Guenther_Afifi_Brendel_Karl_Kellermann_2019, place={New Paltz, USA}, title={Sparse Adaptation of Distributed Blind Source Separation in Acoustic Sensor Networks}, booktitle={2019 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) (WASPAA 2019)}, author={Guenther, Michael and Afifi, Haitham and Brendel, Andreas and Karl, Holger and Kellermann, Walter}, year={2019} }","ama":"Guenther M, Afifi H, Brendel A, Karl H, Kellermann W. Sparse Adaptation of Distributed Blind Source Separation in Acoustic Sensor Networks. In: <i>2019 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) (WASPAA 2019)</i>. New Paltz, USA; 2019.","mla":"Guenther, Michael, et al. “Sparse Adaptation of Distributed Blind Source Separation in Acoustic Sensor Networks.” <i>2019 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) (WASPAA 2019)</i>, 2019."},"type":"conference","department":[{"_id":"75"}],"place":"New Paltz, USA","date_created":"2019-07-24T07:25:01Z"},{"user_id":"65718","_id":"12881","language":[{"iso":"eng"}],"date_updated":"2022-01-06T06:51:22Z","status":"public","title":"An Approximate Power Control Algorithm for a Multi-Cast Wireless Virtual Network Embedding","year":"2019","author":[{"full_name":"Afifi, Haitham","first_name":"Haitham","last_name":"Afifi","id":"65718"},{"id":"126","first_name":"Holger","last_name":"Karl","full_name":"Karl, Holger"}],"type":"conference","department":[{"_id":"75"}],"date_created":"2019-07-24T07:25:28Z","place":"Paris, France","abstract":[{"text":"Internet of Things (IoT) applications witness an exceptional evolution of traffic demands, while existing protocols, as seen in wireless sensor networks (WSNs), struggle to cope with these demands. Traditional protocols rely on finding a routing path between sensors generating data and sinks acting as gateway or databases. Meanwhile, the network will suffer from high collisions in case of high data rates. In this context, in-network processing solutions are used to leverage the wireless nodes' computations, by distributing processing tasks on the nodes along the routing path. Although in-network processing solutions are very popular in wired networks (e.g., data centers and wide area networks), there are many challenges to adopt these solutions in wireless networks, due to the interference problem. In this paper, we solve the problem of routing and task distribution jointly using a greedy Virtual Network Embedding (VNE) algorithm, and consider power control as well. Through simulations, we compare the proposed algorithm to optimal solutions and show that it achieves good results in terms of delay. Moreover, we discuss its sub-optimality by driving tight lower bounds and loose upper bounds. We also compare our solution with another wireless VNE solution to show the trade-off between delay and symbol error rate.","lang":"eng"}],"project":[{"name":"Akustische Sensornetzwerke - Teilprojekt \"Verteilte akustische Signalverarbeitung über funkbasierte Sensornetzwerke","_id":"27"}],"publication":"2019 12th IFIP Wireless and Mobile Networking Conference (WMNC) (WMNC'19)","citation":{"ieee":"H. Afifi and H. Karl, “An Approximate Power Control Algorithm for a Multi-Cast Wireless Virtual Network Embedding,” in <i>2019 12th IFIP Wireless and Mobile Networking Conference (WMNC) (WMNC’19)</i>, 2019.","apa":"Afifi, H., &#38; Karl, H. (2019). An Approximate Power Control Algorithm for a Multi-Cast Wireless Virtual Network Embedding. In <i>2019 12th IFIP Wireless and Mobile Networking Conference (WMNC) (WMNC’19)</i>. Paris, France.","short":"H. Afifi, H. Karl, in: 2019 12th IFIP Wireless and Mobile Networking Conference (WMNC) (WMNC’19), Paris, France, 2019.","chicago":"Afifi, Haitham, and Holger Karl. “An Approximate Power Control Algorithm for a Multi-Cast Wireless Virtual Network Embedding.” In <i>2019 12th IFIP Wireless and Mobile Networking Conference (WMNC) (WMNC’19)</i>. Paris, France, 2019.","mla":"Afifi, Haitham, and Holger Karl. “An Approximate Power Control Algorithm for a Multi-Cast Wireless Virtual Network Embedding.” <i>2019 12th IFIP Wireless and Mobile Networking Conference (WMNC) (WMNC’19)</i>, 2019.","bibtex":"@inproceedings{Afifi_Karl_2019, place={Paris, France}, title={An Approximate Power Control Algorithm for a Multi-Cast Wireless Virtual Network Embedding}, booktitle={2019 12th IFIP Wireless and Mobile Networking Conference (WMNC) (WMNC’19)}, author={Afifi, Haitham and Karl, Holger}, year={2019} }","ama":"Afifi H, Karl H. An Approximate Power Control Algorithm for a Multi-Cast Wireless Virtual Network Embedding. In: <i>2019 12th IFIP Wireless and Mobile Networking Conference (WMNC) (WMNC’19)</i>. Paris, France; 2019."}}]