--- _id: '1181' abstract: - lang: eng text: "The main idea in On-The-Fly Computing is to automatically compose existing software services according to the wishes of end-users. However, since user requirements are often ambiguous, vague and incomplete, the selection and composition of suitable software services is a challanging task. In this paper, we present our current approach to improve requirement descriptions before they are used for software composition. This procedure is fully automated, but also has limitations, for example, if necessary information is missing. In addition, and in response to the limitations, we provide insights into our above-mentioned current work that combines the existing optimization approach with a\r\nchatbot solution." author: - first_name: Frederik Simon full_name: Bäumer, Frederik Simon id: '38837' last_name: Bäumer - first_name: Michaela full_name: Geierhos, Michaela id: '42496' last_name: Geierhos orcid: 0000-0002-8180-5606 citation: ama: 'Bäumer FS, Geierhos M. How to Deal with Inaccurate Service Requirements? Insights in Our Current Approach and New Ideas. In: Schmid K, Spoletini P, Ben Charrada E, et al., eds. Joint Proceedings of REFSQ-2018 Workshops, Doctoral Symposium, Live Studies Track, and Poster Track Co-Located with the 23rd International Conference on Requirements Engineering: Foundation for Software Quality (REFSQ 2018). Vol 2075. CEUR Workshop Proceedings. CEUR-WS.org; 2018.' apa: 'Bäumer, F. S., & Geierhos, M. (2018). How to Deal with Inaccurate Service Requirements? Insights in Our Current Approach and New Ideas. In K. Schmid, P. Spoletini, E. Ben Charrada, Y. Chisik, F. Dalpiaz, A. Ferrari, … A. Zamansky (Eds.), Joint Proceedings of REFSQ-2018 Workshops, Doctoral Symposium, Live Studies Track, and Poster Track co-located with the 23rd International Conference on Requirements Engineering: Foundation for Software Quality (REFSQ 2018) (Vol. 2075). Utrecht, The Netherlands: CEUR-WS.org.' bibtex: '@inproceedings{Bäumer_Geierhos_2018, series={CEUR Workshop Proceedings}, title={How to Deal with Inaccurate Service Requirements? Insights in Our Current Approach and New Ideas}, volume={2075}, booktitle={Joint Proceedings of REFSQ-2018 Workshops, Doctoral Symposium, Live Studies Track, and Poster Track co-located with the 23rd International Conference on Requirements Engineering: Foundation for Software Quality (REFSQ 2018)}, publisher={CEUR-WS.org}, author={Bäumer, Frederik Simon and Geierhos, Michaela}, editor={Schmid, Klaus and Spoletini, Paola and Ben Charrada, Eya and Chisik, Yoram and Dalpiaz, Fabiano and Ferrari, Alessio and Forbrig, Peter and Franch, Xavier and Kirikova, Marite and Madhavji, Nazim and et al.Editors}, year={2018}, collection={CEUR Workshop Proceedings} }' chicago: 'Bäumer, Frederik Simon, and Michaela Geierhos. “How to Deal with Inaccurate Service Requirements? Insights in Our Current Approach and New Ideas.” In Joint Proceedings of REFSQ-2018 Workshops, Doctoral Symposium, Live Studies Track, and Poster Track Co-Located with the 23rd International Conference on Requirements Engineering: Foundation for Software Quality (REFSQ 2018), edited by Klaus Schmid, Paola Spoletini, Eya Ben Charrada, Yoram Chisik, Fabiano Dalpiaz, Alessio Ferrari, Peter Forbrig, et al., Vol. 2075. CEUR Workshop Proceedings. CEUR-WS.org, 2018.' ieee: 'F. S. Bäumer and M. Geierhos, “How to Deal with Inaccurate Service Requirements? Insights in Our Current Approach and New Ideas,” in Joint Proceedings of REFSQ-2018 Workshops, Doctoral Symposium, Live Studies Track, and Poster Track co-located with the 23rd International Conference on Requirements Engineering: Foundation for Software Quality (REFSQ 2018), Utrecht, The Netherlands, 2018, vol. 2075.' mla: 'Bäumer, Frederik Simon, and Michaela Geierhos. “How to Deal with Inaccurate Service Requirements? Insights in Our Current Approach and New Ideas.” Joint Proceedings of REFSQ-2018 Workshops, Doctoral Symposium, Live Studies Track, and Poster Track Co-Located with the 23rd International Conference on Requirements Engineering: Foundation for Software Quality (REFSQ 2018), edited by Klaus Schmid et al., vol. 2075, CEUR-WS.org, 2018.' short: 'F.S. Bäumer, M. Geierhos, in: K. Schmid, P. Spoletini, E. Ben Charrada, Y. Chisik, F. Dalpiaz, A. Ferrari, P. Forbrig, X. Franch, M. Kirikova, N. Madhavji, C. Palomares, J. Ralyté, M. Sabetzadeh, P. Sawyer, D. van der Linden, A. Zamansky (Eds.), Joint Proceedings of REFSQ-2018 Workshops, Doctoral Symposium, Live Studies Track, and Poster Track Co-Located with the 23rd International Conference on Requirements Engineering: Foundation for Software Quality (REFSQ 2018), CEUR-WS.org, 2018.' conference: end_date: 2018-03-19 location: Utrecht, The Netherlands name: 1st Workshop on Natural Language Processing for Requirements Engineering (NLP4RE) start_date: 2018-03-19 date_created: 2018-03-02T09:22:12Z date_updated: 2022-01-06T06:51:09Z ddc: - '000' department: - _id: '36' - _id: '1' - _id: '579' editor: - first_name: Klaus full_name: Schmid, Klaus last_name: Schmid - first_name: Paola full_name: Spoletini, Paola last_name: Spoletini - first_name: Eya full_name: Ben Charrada, Eya last_name: Ben Charrada - first_name: Yoram full_name: Chisik, Yoram last_name: Chisik - first_name: Fabiano full_name: Dalpiaz, Fabiano last_name: Dalpiaz - first_name: Alessio full_name: Ferrari, Alessio last_name: Ferrari - first_name: Peter full_name: Forbrig, Peter last_name: Forbrig - first_name: Xavier full_name: Franch, Xavier last_name: Franch - first_name: Marite full_name: Kirikova, Marite last_name: Kirikova - first_name: Nazim full_name: Madhavji, Nazim last_name: Madhavji - first_name: Cristina full_name: Palomares, Cristina last_name: Palomares - first_name: Jolita full_name: Ralyté, Jolita last_name: Ralyté - first_name: Mehrdad full_name: Sabetzadeh, Mehrdad last_name: Sabetzadeh - first_name: Pete full_name: Sawyer, Pete last_name: Sawyer - first_name: Dirk full_name: van der Linden, Dirk last_name: van der Linden - first_name: Anna full_name: Zamansky, Anna last_name: Zamansky file: - access_level: closed content_type: application/pdf creator: ups date_created: 2018-11-02T13:52:54Z date_updated: 2018-11-02T13:52:54Z file_id: '5256' file_name: NLP4RE_paper1.pdf file_size: 1126820 relation: main_file success: 1 file_date_updated: 2018-11-02T13:52:54Z has_accepted_license: '1' intvolume: ' 2075' language: - iso: eng main_file_link: - open_access: '1' url: http://ceur-ws.org/Vol-2075/NLP4RE_paper1.pdf oa: '1' project: - _id: '1' name: SFB 901 - _id: '3' name: SFB 901 - Project Area B - _id: '9' name: SFB 901 - Subproject B1 publication: 'Joint Proceedings of REFSQ-2018 Workshops, Doctoral Symposium, Live Studies Track, and Poster Track co-located with the 23rd International Conference on Requirements Engineering: Foundation for Software Quality (REFSQ 2018)' publication_identifier: issn: - 1613-0073 publication_status: published publisher: CEUR-WS.org quality_controlled: '1' series_title: CEUR Workshop Proceedings status: public title: How to Deal with Inaccurate Service Requirements? Insights in Our Current Approach and New Ideas type: conference user_id: '477' volume: 2075 year: '2018' ... --- _id: '1182' abstract: - lang: eng text: Natural language requirement descriptions are often unstructured, contradictory and incomplete and are therefore challenging for automatic processing. Although many of these deficits can be compensated by means of Natural Language Processing, there still remain cases where interaction with end-users is necessary for clarification. In this paper, we present our idea of using chatbot technology to establish end-user communication in order to support the automatic compensation of some deficits in natural language requirement descriptions. author: - first_name: Edwin full_name: Friesen, Edwin last_name: Friesen - first_name: Frederik Simon full_name: Bäumer, Frederik Simon id: '38837' last_name: Bäumer - first_name: Michaela full_name: Geierhos, Michaela id: '42496' last_name: Geierhos orcid: 0000-0002-8180-5606 citation: ama: 'Friesen E, Bäumer FS, Geierhos M. CORDULA: Software Requirements Extraction Utilizing Chatbot as Communication Interface. In: Schmid K, Spoletini P, Ben Charrada E, et al., eds. Joint Proceedings of REFSQ-2018 Workshops, Doctoral Symposium, Live Studies Track, and Poster Track Co-Located with the 23rd International Conference on Requirements Engineering: Foundation for Software Quality (REFSQ 2018). Vol 2075. CEUR Workshop Proceedings. CEUR-WS.org; 2018.' apa: 'Friesen, E., Bäumer, F. S., & Geierhos, M. (2018). CORDULA: Software Requirements Extraction Utilizing Chatbot as Communication Interface. In K. Schmid, P. Spoletini, E. Ben Charrada, Y. Chisik, F. Dalpiaz, A. Ferrari, … A. Zamansky (Eds.), Joint Proceedings of REFSQ-2018 Workshops, Doctoral Symposium, Live Studies Track, and Poster Track co-located with the 23rd International Conference on Requirements Engineering: Foundation for Software Quality (REFSQ 2018) (Vol. 2075). Utrecht, The Netherlands: CEUR-WS.org.' bibtex: '@inproceedings{Friesen_Bäumer_Geierhos_2018, series={CEUR Workshop Proceedings}, title={CORDULA: Software Requirements Extraction Utilizing Chatbot as Communication Interface}, volume={2075}, booktitle={Joint Proceedings of REFSQ-2018 Workshops, Doctoral Symposium, Live Studies Track, and Poster Track co-located with the 23rd International Conference on Requirements Engineering: Foundation for Software Quality (REFSQ 2018)}, publisher={CEUR-WS.org}, author={Friesen, Edwin and Bäumer, Frederik Simon and Geierhos, Michaela}, editor={Schmid, Klaus and Spoletini, Paola and Ben Charrada, Eya and Chisik, Yoram and Dalpiaz, Fabiano and Ferrari, Alessio and Forbrig, Peter and Franch, Xavier and Kirikova, Marite and Madhavji, Nazim and et al.Editors}, year={2018}, collection={CEUR Workshop Proceedings} }' chicago: 'Friesen, Edwin, Frederik Simon Bäumer, and Michaela Geierhos. “CORDULA: Software Requirements Extraction Utilizing Chatbot as Communication Interface.” In Joint Proceedings of REFSQ-2018 Workshops, Doctoral Symposium, Live Studies Track, and Poster Track Co-Located with the 23rd International Conference on Requirements Engineering: Foundation for Software Quality (REFSQ 2018), edited by Klaus Schmid, Paola Spoletini, Eya Ben Charrada, Yoram Chisik, Fabiano Dalpiaz, Alessio Ferrari, Peter Forbrig, et al., Vol. 2075. CEUR Workshop Proceedings. CEUR-WS.org, 2018.' ieee: 'E. Friesen, F. S. Bäumer, and M. Geierhos, “CORDULA: Software Requirements Extraction Utilizing Chatbot as Communication Interface,” in Joint Proceedings of REFSQ-2018 Workshops, Doctoral Symposium, Live Studies Track, and Poster Track co-located with the 23rd International Conference on Requirements Engineering: Foundation for Software Quality (REFSQ 2018), Utrecht, The Netherlands, 2018, vol. 2075.' mla: 'Friesen, Edwin, et al. “CORDULA: Software Requirements Extraction Utilizing Chatbot as Communication Interface.” Joint Proceedings of REFSQ-2018 Workshops, Doctoral Symposium, Live Studies Track, and Poster Track Co-Located with the 23rd International Conference on Requirements Engineering: Foundation for Software Quality (REFSQ 2018), edited by Klaus Schmid et al., vol. 2075, CEUR-WS.org, 2018.' short: 'E. Friesen, F.S. Bäumer, M. Geierhos, in: K. Schmid, P. Spoletini, E. Ben Charrada, Y. Chisik, F. Dalpiaz, A. Ferrari, P. Forbrig, X. Franch, M. Kirikova, N. Madhavji, C. Palomares, J. Ralyté, M. Sabetzadeh, P. Sawyer, D. van der Linden, A. Zamansky (Eds.), Joint Proceedings of REFSQ-2018 Workshops, Doctoral Symposium, Live Studies Track, and Poster Track Co-Located with the 23rd International Conference on Requirements Engineering: Foundation for Software Quality (REFSQ 2018), CEUR-WS.org, 2018.' conference: end_date: 2018-03-19 location: Utrecht, The Netherlands name: 1st Workshop on Natural Language Processing for Requirements Engineering (NLP4RE) start_date: 2018-03-19 date_created: 2018-03-02T09:27:12Z date_updated: 2022-01-06T06:51:10Z ddc: - '000' department: - _id: '36' - _id: '1' - _id: '579' editor: - first_name: 'Klaus ' full_name: 'Schmid, Klaus ' last_name: Schmid - first_name: 'Paola ' full_name: 'Spoletini, Paola ' last_name: Spoletini - first_name: 'Eya ' full_name: 'Ben Charrada, Eya ' last_name: Ben Charrada - first_name: 'Yoram ' full_name: 'Chisik, Yoram ' last_name: Chisik - first_name: 'Fabiano ' full_name: 'Dalpiaz, Fabiano ' last_name: Dalpiaz - first_name: 'Alessio ' full_name: 'Ferrari, Alessio ' last_name: Ferrari - first_name: 'Peter ' full_name: 'Forbrig, Peter ' last_name: Forbrig - first_name: 'Xavier ' full_name: 'Franch, Xavier ' last_name: Franch - first_name: 'Marite ' full_name: 'Kirikova, Marite ' last_name: Kirikova - first_name: 'Nazim ' full_name: 'Madhavji, Nazim ' last_name: Madhavji - first_name: 'Cristina ' full_name: 'Palomares, Cristina ' last_name: Palomares - first_name: 'Jolita ' full_name: 'Ralyté, Jolita ' last_name: Ralyté - first_name: 'Mehrdad ' full_name: 'Sabetzadeh, Mehrdad ' last_name: Sabetzadeh - first_name: 'Pete ' full_name: 'Sawyer, Pete ' last_name: Sawyer - first_name: 'Dirk ' full_name: 'van der Linden, Dirk ' last_name: van der Linden - first_name: 'Anna ' full_name: 'Zamansky, Anna ' last_name: Zamansky file: - access_level: closed content_type: application/pdf creator: ups date_created: 2018-11-02T14:36:55Z date_updated: 2018-11-02T14:36:55Z file_id: '5276' file_name: NLP4RE_paper3.pdf file_size: 530902 relation: main_file success: 1 file_date_updated: 2018-11-02T14:36:55Z has_accepted_license: '1' intvolume: ' 2075' language: - iso: eng main_file_link: - open_access: '1' url: http://ceur-ws.org/Vol-2075/NLP4RE_paper3.pdf oa: '1' project: - _id: '1' name: SFB 901 - _id: '3' name: SFB 901 - Project Area B - _id: '9' name: SFB 901 - Subproject B1 publication: 'Joint Proceedings of REFSQ-2018 Workshops, Doctoral Symposium, Live Studies Track, and Poster Track co-located with the 23rd International Conference on Requirements Engineering: Foundation for Software Quality (REFSQ 2018)' publication_identifier: issn: - 1613-0073 publication_status: published publisher: CEUR-WS.org quality_controlled: '1' series_title: CEUR Workshop Proceedings status: public title: 'CORDULA: Software Requirements Extraction Utilizing Chatbot as Communication Interface' type: conference user_id: '477' volume: 2075 year: '2018' ... --- _id: '1183' abstract: - lang: eng text: "As our world grows in complexity, companies and employees alike need, more than ever before, solutions tailored to their exact needs. Since such tools cannot always be purchased off-the-shelf and need to be designed from the ground up, developers rely on software requirements. In this paper, we present our vision of a syntactic rule-based extraction\r\ntool for software requirements specification documents. In contrast to other methods, our tool will allow stakeholders to express their needs and wishes in unfiltered natural language, which we believe is essential for non-expert users." author: - first_name: Matthew full_name: Caron, Matthew last_name: Caron - first_name: Frederik Simon full_name: Bäumer, Frederik Simon id: '38837' last_name: Bäumer - first_name: Michaela full_name: Geierhos, Michaela id: '42496' last_name: Geierhos orcid: 0000-0002-8180-5606 citation: ama: 'Caron M, Bäumer FS, Geierhos M. Back to Basics: Extracting Software Requirements with a Syntactic Approach. In: Schmid K, Spoletini P, Ben Charrada E, et al., eds. Joint Proceedings of REFSQ-2018 Workshops, Doctoral Symposium, Live Studies Track, and Poster Track Co-Located with the 23rd International Conference on Requirements Engineering: Foundation for Software Quality (REFSQ 2018). Vol 2075. CEUR Workshop Proceedings. CEUR-WS.org; 2018.' apa: 'Caron, M., Bäumer, F. S., & Geierhos, M. (2018). Back to Basics: Extracting Software Requirements with a Syntactic Approach. In K. Schmid, P. Spoletini, E. Ben Charrada, Y. Chisik, F. Dalpiaz, A. Ferrari, … A. Zamansky (Eds.), Joint Proceedings of REFSQ-2018 Workshops, Doctoral Symposium, Live Studies Track, and Poster Track co-located with the 23rd International Conference on Requirements Engineering: Foundation for Software Quality (REFSQ 2018) (Vol. 2075). Utrecht, The Netherlands: CEUR-WS.org.' bibtex: '@inproceedings{Caron_Bäumer_Geierhos_2018, series={CEUR Workshop Proceedings}, title={Back to Basics: Extracting Software Requirements with a Syntactic Approach}, volume={2075}, booktitle={Joint Proceedings of REFSQ-2018 Workshops, Doctoral Symposium, Live Studies Track, and Poster Track co-located with the 23rd International Conference on Requirements Engineering: Foundation for Software Quality (REFSQ 2018)}, publisher={CEUR-WS.org}, author={Caron, Matthew and Bäumer, Frederik Simon and Geierhos, Michaela}, editor={Schmid, Klaus and Spoletini, Paola and Ben Charrada, Eya and Chisik, Yoram and Dalpiaz, Fabiano and Ferrari, Alessio and Forbrig, Peter and Franch, Xavier and Kirikova, Marite and Madhavji, Nazim and et al.Editors}, year={2018}, collection={CEUR Workshop Proceedings} }' chicago: 'Caron, Matthew, Frederik Simon Bäumer, and Michaela Geierhos. “Back to Basics: Extracting Software Requirements with a Syntactic Approach.” In Joint Proceedings of REFSQ-2018 Workshops, Doctoral Symposium, Live Studies Track, and Poster Track Co-Located with the 23rd International Conference on Requirements Engineering: Foundation for Software Quality (REFSQ 2018), edited by Klaus Schmid, Paola Spoletini, Eya Ben Charrada, Yoram Chisik, Fabiano Dalpiaz, Alessio Ferrari, Peter Forbrig, et al., Vol. 2075. CEUR Workshop Proceedings. CEUR-WS.org, 2018.' ieee: 'M. Caron, F. S. Bäumer, and M. Geierhos, “Back to Basics: Extracting Software Requirements with a Syntactic Approach,” in Joint Proceedings of REFSQ-2018 Workshops, Doctoral Symposium, Live Studies Track, and Poster Track co-located with the 23rd International Conference on Requirements Engineering: Foundation for Software Quality (REFSQ 2018), Utrecht, The Netherlands, 2018, vol. 2075.' mla: 'Caron, Matthew, et al. “Back to Basics: Extracting Software Requirements with a Syntactic Approach.” Joint Proceedings of REFSQ-2018 Workshops, Doctoral Symposium, Live Studies Track, and Poster Track Co-Located with the 23rd International Conference on Requirements Engineering: Foundation for Software Quality (REFSQ 2018), edited by Klaus Schmid et al., vol. 2075, CEUR-WS.org, 2018.' short: 'M. Caron, F.S. Bäumer, M. Geierhos, in: K. Schmid, P. Spoletini, E. Ben Charrada, Y. Chisik, F. Dalpiaz, A. Ferrari, P. Forbrig, X. Franch, M. Kirikova, N. Madhavji, C. Palomares, J. Ralyté, M. Sabetzadeh, P. Sawyer, D. van der Linden, A. Zamansky (Eds.), Joint Proceedings of REFSQ-2018 Workshops, Doctoral Symposium, Live Studies Track, and Poster Track Co-Located with the 23rd International Conference on Requirements Engineering: Foundation for Software Quality (REFSQ 2018), CEUR-WS.org, 2018.' conference: end_date: 2018-03-19 location: Utrecht, The Netherlands name: 1st Workshop on Natural Language Processing for Requirements Engineering (NLP4RE) start_date: 2018-03-19 date_created: 2018-03-02T09:28:59Z date_updated: 2022-01-06T06:51:11Z ddc: - '000' department: - _id: '36' - _id: '1' - _id: '579' editor: - first_name: Klaus full_name: Schmid, Klaus last_name: Schmid - first_name: Paola full_name: Spoletini, Paola last_name: Spoletini - first_name: Eya full_name: Ben Charrada, Eya last_name: Ben Charrada - first_name: Yoram full_name: Chisik, Yoram last_name: Chisik - first_name: Fabiano full_name: Dalpiaz, Fabiano last_name: Dalpiaz - first_name: Alessio full_name: Ferrari, Alessio last_name: Ferrari - first_name: Peter full_name: Forbrig, Peter last_name: Forbrig - first_name: Xavier full_name: Franch, Xavier last_name: Franch - first_name: Marite full_name: Kirikova, Marite last_name: Kirikova - first_name: Nazim full_name: Madhavji, Nazim last_name: Madhavji - first_name: Cristina full_name: Palomares, Cristina last_name: Palomares - first_name: Jolita full_name: Ralyté, Jolita last_name: Ralyté - first_name: Mehrdad full_name: Sabetzadeh, Mehrdad last_name: Sabetzadeh - first_name: Pete full_name: Sawyer, Pete last_name: Sawyer - first_name: Dirk full_name: van der Linden, Dirk last_name: van der Linden - first_name: Anna full_name: Zamansky, Anna last_name: Zamansky file: - access_level: closed content_type: application/pdf creator: ups date_created: 2018-11-02T14:40:58Z date_updated: 2018-11-02T14:40:58Z file_id: '5279' file_name: NLP4RE_paper5.pdf file_size: 254814 relation: main_file success: 1 file_date_updated: 2018-11-02T14:40:58Z has_accepted_license: '1' intvolume: ' 2075' language: - iso: eng main_file_link: - open_access: '1' url: http://ceur-ws.org/Vol-2075/NLP4RE_paper5.pdf oa: '1' project: - _id: '1' name: SFB 901 - _id: '3' name: SFB 901 - Project Area B - _id: '9' name: SFB 901 - Subproject B1 publication: 'Joint Proceedings of REFSQ-2018 Workshops, Doctoral Symposium, Live Studies Track, and Poster Track co-located with the 23rd International Conference on Requirements Engineering: Foundation for Software Quality (REFSQ 2018)' publication_identifier: issn: - 1613-0073 publication_status: published publisher: CEUR-WS.org quality_controlled: '1' series_title: CEUR Workshop Proceedings status: public title: 'Back to Basics: Extracting Software Requirements with a Syntactic Approach' type: conference user_id: '477' volume: 2075 year: '2018' ... --- _id: '11835' abstract: - lang: eng 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. But in its original formulation, WPE requires multiple iterations over a sufficiently long utterance, rendering it unsuitable for online low-latency applications. Recently, two methods have been proposed to overcome this limitation. One utilizes a neural network to estimate the power spectral density (PSD) of the target signal and works in a block-online fashion. The other method relies on a rather simple PSD estimation which smoothes the observed PSD and utilizes a recursive formulation which enables it to work on a frame-by-frame basis. In this paper, we integrate a deep neural network (DNN) based estimator into the recursive frame-online formulation. We evaluate the performance of the recursive system with different PSD estimators in comparison to the block-online and offline variant on two distinct corpora. The REVERB challenge data, where the signal is mainly deteriorated by reverberation, and a database which combines WSJ and VoiceHome to also consider (directed) noise sources. The results show that although smoothing works surprisingly well, the more sophisticated DNN based estimator shows promising improvements and shortens the performance gap between online and offline processing. author: - first_name: Jahn full_name: Heymann, Jahn id: '9168' last_name: Heymann - first_name: Lukas full_name: Drude, Lukas id: '11213' last_name: Drude - first_name: Reinhold full_name: Haeb-Umbach, Reinhold id: '242' last_name: Haeb-Umbach - first_name: Keisuke full_name: Kinoshita, Keisuke last_name: Kinoshita - first_name: Tomohiro full_name: Nakatani, Tomohiro last_name: Nakatani citation: ama: 'Heymann J, Drude L, Haeb-Umbach R, Kinoshita K, Nakatani T. Frame-Online DNN-WPE Dereverberation. In: IWAENC 2018, Tokio, Japan. ; 2018.' apa: Heymann, J., Drude, L., Haeb-Umbach, R., Kinoshita, K., & Nakatani, T. (2018). Frame-Online DNN-WPE Dereverberation. In IWAENC 2018, Tokio, Japan. bibtex: '@inproceedings{Heymann_Drude_Haeb-Umbach_Kinoshita_Nakatani_2018, title={Frame-Online DNN-WPE Dereverberation}, booktitle={IWAENC 2018, Tokio, Japan}, author={Heymann, Jahn and Drude, Lukas and Haeb-Umbach, Reinhold and Kinoshita, Keisuke and Nakatani, Tomohiro}, year={2018} }' chicago: Heymann, Jahn, Lukas Drude, Reinhold Haeb-Umbach, Keisuke Kinoshita, and Tomohiro Nakatani. “Frame-Online DNN-WPE Dereverberation.” In IWAENC 2018, Tokio, Japan, 2018. ieee: J. Heymann, L. Drude, R. Haeb-Umbach, K. Kinoshita, and T. Nakatani, “Frame-Online DNN-WPE Dereverberation,” in IWAENC 2018, Tokio, Japan, 2018. mla: Heymann, Jahn, et al. “Frame-Online DNN-WPE Dereverberation.” IWAENC 2018, Tokio, Japan, 2018. short: 'J. Heymann, L. Drude, R. Haeb-Umbach, K. Kinoshita, T. Nakatani, in: IWAENC 2018, Tokio, Japan, 2018.' date_created: 2019-07-12T05:29:10Z date_updated: 2022-01-06T06:51:11Z department: - _id: '54' language: - iso: eng main_file_link: - open_access: '1' url: https://groups.uni-paderborn.de/nt/pubs/2018/IWAENC_2018_Heymann_Paper.pdf oa: '1' publication: IWAENC 2018, Tokio, Japan related_material: link: - description: Poster relation: supplementary_material url: https://groups.uni-paderborn.de/nt/pubs/2018/IWAENC_2018_Heymann_Poster.pdf status: public title: Frame-Online DNN-WPE Dereverberation type: conference user_id: '44006' year: '2018' ... --- _id: '11837' abstract: - lang: eng text: We present a block-online multi-channel front end for automatic speech recognition in noisy and reverberated environments. It is an online version of our earlier proposed neural network supported acoustic beamformer, whose coefficients are calculated from noise and speech spatial covariance matrices which are estimated utilizing a neural mask estimator. However, the sparsity of speech in the STFT domain causes problems for the initial beamformer coefficients estimation in some frequency bins due to lack of speech observations. We propose two methods to mitigate this issue. The first is to lower the frequency resolution of the STFT, which comes with the additional advantage of a reduced time window, thus lowering the latency introduced by block processing. The second approach is to smooth beamforming coefficients along the frequency axis, thus exploiting their high interfrequency correlation. With both approaches the gap between offline and block-online beamformer performance, as measured by the word error rate achieved by a downstream speech recognizer, is significantly reduced. Experiments are carried out on two copora, representing noisy (CHiME-4) and noisy reverberant (voiceHome) environments. author: - first_name: Jens full_name: Heitkaemper, Jens id: '27643' last_name: Heitkaemper - first_name: Jahn full_name: Heymann, Jahn id: '9168' last_name: Heymann - first_name: Reinhold full_name: Haeb-Umbach, Reinhold id: '242' last_name: Haeb-Umbach citation: ama: 'Heitkaemper J, Heymann J, Haeb-Umbach R. Smoothing along Frequency in Online Neural Network Supported Acoustic Beamforming. In: ITG 2018, Oldenburg, Germany. ; 2018.' apa: Heitkaemper, J., Heymann, J., & Haeb-Umbach, R. (2018). Smoothing along Frequency in Online Neural Network Supported Acoustic Beamforming. In ITG 2018, Oldenburg, Germany. bibtex: '@inproceedings{Heitkaemper_Heymann_Haeb-Umbach_2018, title={Smoothing along Frequency in Online Neural Network Supported Acoustic Beamforming}, booktitle={ITG 2018, Oldenburg, Germany}, author={Heitkaemper, Jens and Heymann, Jahn and Haeb-Umbach, Reinhold}, year={2018} }' chicago: Heitkaemper, Jens, Jahn Heymann, and Reinhold Haeb-Umbach. “Smoothing along Frequency in Online Neural Network Supported Acoustic Beamforming.” In ITG 2018, Oldenburg, Germany, 2018. ieee: J. Heitkaemper, J. Heymann, and R. Haeb-Umbach, “Smoothing along Frequency in Online Neural Network Supported Acoustic Beamforming,” in ITG 2018, Oldenburg, Germany, 2018. mla: Heitkaemper, Jens, et al. “Smoothing along Frequency in Online Neural Network Supported Acoustic Beamforming.” ITG 2018, Oldenburg, Germany, 2018. short: 'J. Heitkaemper, J. Heymann, R. Haeb-Umbach, in: ITG 2018, Oldenburg, Germany, 2018.' date_created: 2019-07-12T05:29:13Z date_updated: 2022-01-06T06:51:11Z department: - _id: '54' language: - iso: eng main_file_link: - open_access: '1' url: https://groups.uni-paderborn.de/nt/pubs/2018/ITG_2018_Heitkaemper_Paper.pdf oa: '1' publication: ITG 2018, Oldenburg, Germany related_material: link: - description: Slides relation: supplementary_material url: https://groups.uni-paderborn.de/nt/pubs/2018/ITG_2018_Heitkaemper_Slides.pdf status: public title: Smoothing along Frequency in Online Neural Network Supported Acoustic Beamforming type: conference user_id: '44006' year: '2018' ... --- _id: '11872' abstract: - lang: eng text: 'The weighted prediction error (WPE) algorithm has proven to be a very successful dereverberation method for the REVERB challenge. Likewise, neural network based mask estimation for beamforming demonstrated very good noise suppression in the CHiME 3 and CHiME 4 challenges. Recently, it has been shown that this estimator can also be trained to perform dereverberation and denoising jointly. However, up to now a comparison of a neural beamformer and WPE is still missing, so is an investigation into a combination of the two. Therefore, we here provide an extensive evaluation of both and consequently propose variants to integrate deep neural network based beamforming with WPE. For these integrated variants we identify a consistent word error rate (WER) reduction on two distinct databases. In particular, our study shows that deep learning based beamforming benefits from a model-based dereverberation technique (i.e. WPE) and vice versa. Our key findings are: (a) Neural beamforming yields the lower WERs in comparison to WPE the more channels and noise are present. (b) Integration of WPE and a neural beamformer consistently outperforms all stand-alone systems.' author: - first_name: Lukas full_name: Drude, Lukas id: '11213' last_name: Drude - first_name: Christoph full_name: Boeddeker, Christoph id: '40767' last_name: Boeddeker - first_name: Jahn full_name: Heymann, Jahn id: '9168' last_name: Heymann - first_name: Keisuke full_name: Kinoshita, Keisuke last_name: Kinoshita - first_name: Marc full_name: Delcroix, Marc last_name: Delcroix - first_name: Tomohiro full_name: Nakatani, Tomohiro last_name: Nakatani - first_name: Reinhold full_name: Haeb-Umbach, Reinhold id: '242' last_name: Haeb-Umbach citation: ama: 'Drude L, Boeddeker C, Heymann J, et al. Integration neural network based beamforming and weighted prediction error dereverberation. In: INTERSPEECH 2018, Hyderabad, India. ; 2018.' apa: Drude, L., Boeddeker, C., Heymann, J., Kinoshita, K., Delcroix, M., Nakatani, T., & Haeb-Umbach, R. (2018). Integration neural network based beamforming and weighted prediction error dereverberation. In INTERSPEECH 2018, Hyderabad, India. bibtex: '@inproceedings{Drude_Boeddeker_Heymann_Kinoshita_Delcroix_Nakatani_Haeb-Umbach_2018, title={Integration neural network based beamforming and weighted prediction error dereverberation}, booktitle={INTERSPEECH 2018, Hyderabad, India}, author={Drude, Lukas and Boeddeker, Christoph and Heymann, Jahn and Kinoshita, Keisuke and Delcroix, Marc and Nakatani, Tomohiro and Haeb-Umbach, Reinhold}, year={2018} }' chicago: Drude, Lukas, Christoph Boeddeker, Jahn Heymann, Keisuke Kinoshita, Marc Delcroix, Tomohiro Nakatani, and Reinhold Haeb-Umbach. “Integration Neural Network Based Beamforming and Weighted Prediction Error Dereverberation.” In INTERSPEECH 2018, Hyderabad, India, 2018. ieee: L. Drude et al., “Integration neural network based beamforming and weighted prediction error dereverberation,” in INTERSPEECH 2018, Hyderabad, India, 2018. mla: Drude, Lukas, et al. “Integration Neural Network Based Beamforming and Weighted Prediction Error Dereverberation.” INTERSPEECH 2018, Hyderabad, India, 2018. short: 'L. Drude, C. Boeddeker, J. Heymann, K. Kinoshita, M. Delcroix, T. Nakatani, R. Haeb-Umbach, in: INTERSPEECH 2018, Hyderabad, India, 2018.' date_created: 2019-07-12T05:29:53Z date_updated: 2022-01-06T06:51:11Z department: - _id: '54' language: - iso: eng main_file_link: - open_access: '1' url: https://groups.uni-paderborn.de/nt/pubs/2018/INTERSPEECH_2018_Drude_Paper.pdf oa: '1' project: - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: INTERSPEECH 2018, Hyderabad, India related_material: link: - description: Slides relation: supplementary_material url: https://groups.uni-paderborn.de/nt/pubs/2018/INTERSPEECH_2018_Drude_Slides.pdf status: public title: Integration neural network based beamforming and weighted prediction error dereverberation type: conference user_id: '40767' year: '2018' ... --- _id: '11873' abstract: - lang: eng text: NARA-WPE is a Python software package providing implementations of the weighted prediction error (WPE) dereverberation algorithm. WPE has been shown to be a highly effective tool for speech dereverberation, thus improving the perceptual quality of the signal and improving the recognition performance of downstream automatic speech recognition (ASR). It is suitable both for single-channel and multi-channel applications. The package consist of (1) a Numpy implementation which can easily be integrated into a custom Python toolchain, and (2) a TensorFlow implementation which allows integration into larger computational graphs and enables backpropagation through WPE to train more advanced front-ends. This package comprises of an iterative offline (batch) version, a block-online version, and a frame-online version which can be used in moderately low latency applications, e.g. digital speech assistants. author: - first_name: Lukas full_name: Drude, Lukas id: '11213' last_name: Drude - first_name: Jahn full_name: Heymann, Jahn id: '9168' last_name: Heymann - first_name: Christoph full_name: Boeddeker, Christoph id: '40767' last_name: Boeddeker - first_name: Reinhold full_name: Haeb-Umbach, Reinhold id: '242' last_name: Haeb-Umbach citation: ama: 'Drude L, Heymann J, Boeddeker C, Haeb-Umbach R. NARA-WPE: A Python package for weighted prediction error dereverberation in Numpy and Tensorflow for online and offline processing. In: ITG 2018, Oldenburg, Germany. ; 2018.' apa: 'Drude, L., Heymann, J., Boeddeker, C., & Haeb-Umbach, R. (2018). NARA-WPE: A Python package for weighted prediction error dereverberation in Numpy and Tensorflow for online and offline processing. In ITG 2018, Oldenburg, Germany.' bibtex: '@inproceedings{Drude_Heymann_Boeddeker_Haeb-Umbach_2018, title={NARA-WPE: A Python package for weighted prediction error dereverberation in Numpy and Tensorflow for online and offline processing}, booktitle={ITG 2018, Oldenburg, Germany}, author={Drude, Lukas and Heymann, Jahn and Boeddeker, Christoph and Haeb-Umbach, Reinhold}, year={2018} }' chicago: 'Drude, Lukas, Jahn Heymann, Christoph Boeddeker, and Reinhold Haeb-Umbach. “NARA-WPE: A Python Package for Weighted Prediction Error Dereverberation in Numpy and Tensorflow for Online and Offline Processing.” In ITG 2018, Oldenburg, Germany, 2018.' ieee: 'L. Drude, J. Heymann, C. Boeddeker, and R. Haeb-Umbach, “NARA-WPE: A Python package for weighted prediction error dereverberation in Numpy and Tensorflow for online and offline processing,” in ITG 2018, Oldenburg, Germany, 2018.' mla: 'Drude, Lukas, et al. “NARA-WPE: A Python Package for Weighted Prediction Error Dereverberation in Numpy and Tensorflow for Online and Offline Processing.” ITG 2018, Oldenburg, Germany, 2018.' short: 'L. Drude, J. Heymann, C. Boeddeker, R. Haeb-Umbach, in: ITG 2018, Oldenburg, Germany, 2018.' date_created: 2019-07-12T05:29:54Z date_updated: 2022-01-06T06:51:11Z department: - _id: '54' language: - iso: eng main_file_link: - open_access: '1' url: https://groups.uni-paderborn.de/nt/pubs/2018/ITG_2018_Drude_Paper.pdf oa: '1' project: - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: ITG 2018, Oldenburg, Germany related_material: link: - description: Poster relation: supplementary_material url: https://groups.uni-paderborn.de/nt/pubs/2018/ITG_2018_Drude_Poster.pdf status: public title: 'NARA-WPE: A Python package for weighted prediction error dereverberation in Numpy and Tensorflow for online and offline processing' type: conference user_id: '40767' year: '2018' ... --- _id: '11916' abstract: - lang: eng text: We present an experimental comparison of seven state-of-the-art machine learning algorithms for the task of semantic analysis of spoken input, with a special emphasis on applications for dysarthric speech. Dysarthria is a motor speech disorder, which is characterized by poor articulation of phonemes. In order to cater for these noncanonical phoneme realizations, we employed an unsupervised learning approach to estimate the acoustic models for speech recognition, which does not require a literal transcription of the training data. Even for the subsequent task of semantic analysis, only weak supervision is employed, whereby the training utterance is accompanied by a semantic label only, rather than a literal transcription. Results on two databases, one of them containing dysarthric speech, are presented showing that Markov logic networks and conditional random fields substantially outperform other machine learning approaches. Markov logic networks have proved to be especially robust to recognition errors, which are caused by imprecise articulation in dysarthric speech. author: - first_name: Vladimir full_name: Despotovic, Vladimir last_name: Despotovic - first_name: Oliver full_name: Walter, Oliver last_name: Walter - first_name: Reinhold full_name: Haeb-Umbach, Reinhold id: '242' last_name: Haeb-Umbach citation: ama: 'Despotovic V, Walter O, Haeb-Umbach R. Machine learning techniques for semantic analysis of dysarthric speech: An experimental study. Speech Communication 99 (2018) 242-251 (Elsevier BV). 2018.' apa: 'Despotovic, V., Walter, O., & Haeb-Umbach, R. (2018). Machine learning techniques for semantic analysis of dysarthric speech: An experimental study. Speech Communication 99 (2018) 242-251 (Elsevier B.V.).' bibtex: '@article{Despotovic_Walter_Haeb-Umbach_2018, title={Machine learning techniques for semantic analysis of dysarthric speech: An experimental study}, journal={Speech Communication 99 (2018) 242-251 (Elsevier B.V.)}, author={Despotovic, Vladimir and Walter, Oliver and Haeb-Umbach, Reinhold}, year={2018} }' chicago: 'Despotovic, Vladimir, Oliver Walter, and Reinhold Haeb-Umbach. “Machine Learning Techniques for Semantic Analysis of Dysarthric Speech: An Experimental Study.” Speech Communication 99 (2018) 242-251 (Elsevier B.V.), 2018.' ieee: 'V. Despotovic, O. Walter, and R. Haeb-Umbach, “Machine learning techniques for semantic analysis of dysarthric speech: An experimental study,” Speech Communication 99 (2018) 242-251 (Elsevier B.V.), 2018.' mla: 'Despotovic, Vladimir, et al. “Machine Learning Techniques for Semantic Analysis of Dysarthric Speech: An Experimental Study.” Speech Communication 99 (2018) 242-251 (Elsevier B.V.), 2018.' short: V. Despotovic, O. Walter, R. Haeb-Umbach, Speech Communication 99 (2018) 242-251 (Elsevier B.V.) (2018). date_created: 2019-07-12T05:30:44Z date_updated: 2022-01-06T06:51:12Z department: - _id: '54' language: - iso: eng main_file_link: - open_access: '1' url: https://groups.uni-paderborn.de/nt/pubs/2018/SpeechCommunication_2018_Walter_Paper.pdf oa: '1' publication: Speech Communication 99 (2018) 242-251 (Elsevier B.V.) status: public title: 'Machine learning techniques for semantic analysis of dysarthric speech: An experimental study' type: journal_article user_id: '44006' year: '2018' ... --- _id: '12898' abstract: - lang: eng text: Deep clustering (DC) and deep attractor networks (DANs) are a data-driven way to monaural blind source separation. Both approaches provide astonishing single channel performance but have not yet been generalized to block-online processing. When separating speech in a continuous stream with a block-online algorithm, it needs to be determined in each block which of the output streams belongs to whom. In this contribution we solve this block permutation problem by introducing an additional speaker identification embedding to the DAN model structure. We motivate this model decision by analyzing the embedding topology of DC and DANs and show, that DC and DANs themselves are not sufficient for speaker identification. This model structure (a) improves the signal to distortion ratio (SDR) over a DAN baseline and (b) provides up to 61% and up to 34% relative reduction in permutation error rate and re-identification error rate compared to an i-vector baseline, respectively. author: - first_name: Lukas full_name: Drude, Lukas id: '11213' last_name: Drude - first_name: Thilo full_name: von Neumann, Thilo last_name: von Neumann - first_name: Reinhold full_name: Haeb-Umbach, Reinhold id: '242' last_name: Haeb-Umbach citation: ama: 'Drude L, von Neumann T, Haeb-Umbach R. Deep Attractor Networks for Speaker Re-Identifikation and Blind Source Separation. In: ICASSP 2018, Calgary, Canada. ; 2018.' apa: Drude, L., von Neumann, T., & Haeb-Umbach, R. (2018). Deep Attractor Networks for Speaker Re-Identifikation and Blind Source Separation. In ICASSP 2018, Calgary, Canada. bibtex: '@inproceedings{Drude_von Neumann_Haeb-Umbach_2018, title={Deep Attractor Networks for Speaker Re-Identifikation and Blind Source Separation}, booktitle={ICASSP 2018, Calgary, Canada}, author={Drude, Lukas and von Neumann, Thilo and Haeb-Umbach, Reinhold}, year={2018} }' chicago: Drude, Lukas, Thilo von Neumann, and Reinhold Haeb-Umbach. “Deep Attractor Networks for Speaker Re-Identifikation and Blind Source Separation.” In ICASSP 2018, Calgary, Canada, 2018. ieee: L. Drude, T. von Neumann, and R. Haeb-Umbach, “Deep Attractor Networks for Speaker Re-Identifikation and Blind Source Separation,” in ICASSP 2018, Calgary, Canada, 2018. mla: Drude, Lukas, et al. “Deep Attractor Networks for Speaker Re-Identifikation and Blind Source Separation.” ICASSP 2018, Calgary, Canada, 2018. short: 'L. Drude, T. von Neumann, R. Haeb-Umbach, in: ICASSP 2018, Calgary, Canada, 2018.' date_created: 2019-07-30T14:22:53Z date_updated: 2022-01-06T06:51:24Z department: - _id: '54' language: - iso: eng main_file_link: - open_access: '1' url: https://groups.uni-paderborn.de/nt/pubs/2018/ICASSP_2018_Drude2_Paper.pdf oa: '1' publication: ICASSP 2018, Calgary, Canada related_material: link: - description: Slides relation: supplementary_material url: https://groups.uni-paderborn.de/nt/pubs/2018/ICASSP_2018_Drude2_Slides.pdf status: public title: Deep Attractor Networks for Speaker Re-Identifikation and Blind Source Separation type: conference user_id: '44006' year: '2018' ... --- _id: '12900' abstract: - lang: eng text: 'Deep attractor networks (DANs) are a recently introduced method to blindly separate sources from spectral features of a monaural recording using bidirectional long short-term memory networks (BLSTMs). Due to the nature of BLSTMs, this is inherently not online-ready and resorting to operating on blocks yields a block permutation problem in that the index of each speaker may change between blocks. We here propose the joint modeling of spatial and spectral features to solve the block permutation problem and generalize DANs to multi-channel meeting recordings: The DAN acts as a spectral feature extractor for a subsequent model-based clustering approach. We first analyze different joint models in batch-processing scenarios and finally propose a block-online blind source separation algorithm. The efficacy of the proposed models is demonstrated on reverberant mixtures corrupted by real recordings of multi-channel background noise. We demonstrate that both the proposed batch-processing and the proposed block-online system outperform (a) a spatial-only model with a state-of-the-art frequency permutation solver and (b) a spectral-only model with an oracle block permutation solver in terms of signal to distortion ratio (SDR) gains.' author: - first_name: Lukas full_name: Drude, Lukas id: '11213' last_name: Drude - first_name: ' Takuya ' full_name: 'Higuchi,, Takuya ' last_name: Higuchi, - first_name: 'Keisuke ' full_name: 'Kinoshita, Keisuke ' last_name: Kinoshita - first_name: 'Tomohiro ' full_name: 'Nakatani, Tomohiro ' last_name: Nakatani - first_name: Reinhold full_name: Haeb-Umbach, Reinhold id: '242' last_name: Haeb-Umbach citation: ama: 'Drude L, Higuchi, Takuya , Kinoshita K, Nakatani T, Haeb-Umbach R. Dual Frequency- and Block-Permutation Alignment for Deep Learning Based Block-Online Blind Source Separation. In: ICASSP 2018, Calgary, Canada. ; 2018.' apa: Drude, L., Higuchi, Takuya , Kinoshita, K., Nakatani, T., & Haeb-Umbach, R. (2018). Dual Frequency- and Block-Permutation Alignment for Deep Learning Based Block-Online Blind Source Separation. In ICASSP 2018, Calgary, Canada. bibtex: '@inproceedings{Drude_Higuchi,_Kinoshita_Nakatani_Haeb-Umbach_2018, title={Dual Frequency- and Block-Permutation Alignment for Deep Learning Based Block-Online Blind Source Separation}, booktitle={ICASSP 2018, Calgary, Canada}, author={Drude, Lukas and Higuchi, Takuya and Kinoshita, Keisuke and Nakatani, Tomohiro and Haeb-Umbach, Reinhold}, year={2018} }' chicago: Drude, Lukas, Takuya Higuchi, Keisuke Kinoshita, Tomohiro Nakatani, and Reinhold Haeb-Umbach. “Dual Frequency- and Block-Permutation Alignment for Deep Learning Based Block-Online Blind Source Separation.” In ICASSP 2018, Calgary, Canada, 2018. ieee: L. Drude, Takuya Higuchi, K. Kinoshita, T. Nakatani, and R. Haeb-Umbach, “Dual Frequency- and Block-Permutation Alignment for Deep Learning Based Block-Online Blind Source Separation,” in ICASSP 2018, Calgary, Canada, 2018. mla: Drude, Lukas, et al. “Dual Frequency- and Block-Permutation Alignment for Deep Learning Based Block-Online Blind Source Separation.” ICASSP 2018, Calgary, Canada, 2018. short: 'L. Drude, Takuya Higuchi, K. Kinoshita, T. Nakatani, R. Haeb-Umbach, in: ICASSP 2018, Calgary, Canada, 2018.' date_created: 2019-07-30T14:42:15Z date_updated: 2022-01-06T06:51:24Z department: - _id: '54' language: - iso: eng main_file_link: - open_access: '1' url: https://groups.uni-paderborn.de/nt/pubs/2018/ICASSP_2018_Drude_Paper.pdf oa: '1' publication: ICASSP 2018, Calgary, Canada related_material: link: - description: Poster relation: supplementary_material url: https://groups.uni-paderborn.de/nt/pubs/2018/ICASSP_2018_Drude_Poster.pdf status: public title: Dual Frequency- and Block-Permutation Alignment for Deep Learning Based Block-Online Blind Source Separation type: conference user_id: '44006' year: '2018' ... --- _id: '12901' abstract: - lang: eng text: This work examines acoustic beamformers employing neural networks (NNs) for mask prediction as front-end for automatic speech recognition (ASR) systems for practical scenarios like voice-enabled home devices. To test the versatility of the mask predicting network, the system is evaluated with different recording hardware, different microphone array designs, and different acoustic models of the downstream ASR system. Significant gains in recognition accuracy are obtained in all configurations despite the fact that the NN had been trained on mismatched data. Unlike previous work, the NN is trained on a feature level objective, which gives some performance advantage over a mask related criterion. Furthermore, different approaches for realizing online, or adaptive, NN-based beamforming are explored, where the online algorithms still show significant gains compared to the baseline performance. author: - first_name: Christoph full_name: Boeddeker, Christoph id: '40767' last_name: Boeddeker - first_name: Hakan full_name: Erdogan, Hakan last_name: Erdogan - first_name: Takuya full_name: Yoshioka, Takuya last_name: Yoshioka - first_name: Reinhold full_name: Haeb-Umbach, Reinhold id: '242' last_name: Haeb-Umbach citation: ama: 'Boeddeker C, Erdogan H, Yoshioka T, Haeb-Umbach R. Exploring Practical Aspects of Neural Mask-Based Beamforming for Far-Field Speech Recognition. In: ICASSP 2018, Calgary, Canada. ; 2018.' apa: Boeddeker, C., Erdogan, H., Yoshioka, T., & Haeb-Umbach, R. (2018). Exploring Practical Aspects of Neural Mask-Based Beamforming for Far-Field Speech Recognition. In ICASSP 2018, Calgary, Canada. bibtex: '@inproceedings{Boeddeker_Erdogan_Yoshioka_Haeb-Umbach_2018, title={Exploring Practical Aspects of Neural Mask-Based Beamforming for Far-Field Speech Recognition}, booktitle={ICASSP 2018, Calgary, Canada}, author={Boeddeker, Christoph and Erdogan, Hakan and Yoshioka, Takuya and Haeb-Umbach, Reinhold}, year={2018} }' chicago: Boeddeker, Christoph, Hakan Erdogan, Takuya Yoshioka, and Reinhold Haeb-Umbach. “Exploring Practical Aspects of Neural Mask-Based Beamforming for Far-Field Speech Recognition.” In ICASSP 2018, Calgary, Canada, 2018. ieee: C. Boeddeker, H. Erdogan, T. Yoshioka, and R. Haeb-Umbach, “Exploring Practical Aspects of Neural Mask-Based Beamforming for Far-Field Speech Recognition,” in ICASSP 2018, Calgary, Canada, 2018. mla: Boeddeker, Christoph, et al. “Exploring Practical Aspects of Neural Mask-Based Beamforming for Far-Field Speech Recognition.” ICASSP 2018, Calgary, Canada, 2018. short: 'C. Boeddeker, H. Erdogan, T. Yoshioka, R. Haeb-Umbach, in: ICASSP 2018, Calgary, Canada, 2018.' date_created: 2019-07-30T14:53:58Z date_updated: 2022-01-06T06:51:24Z department: - _id: '54' language: - iso: eng main_file_link: - open_access: '1' url: https://groups.uni-paderborn.de/nt/pubs/2018/ICASSP_2018_Boeddeker_Paper.pdf oa: '1' publication: ICASSP 2018, Calgary, Canada related_material: link: - description: Poster relation: supplementary_material url: https://groups.uni-paderborn.de/nt/pubs/2018/ICASSP_2018_Boeddeker_Slides.pdf status: public title: Exploring Practical Aspects of Neural Mask-Based Beamforming for Far-Field Speech Recognition type: conference user_id: '44006' year: '2018' ... --- _id: '15905' author: - first_name: Damian full_name: Poddebniak, Damian last_name: Poddebniak - first_name: Christian full_name: Dresen, Christian last_name: Dresen - first_name: Jens full_name: Müller, Jens last_name: Müller - first_name: Fabian full_name: Ising, Fabian last_name: Ising - first_name: Sebastian full_name: Schinzel, Sebastian last_name: Schinzel - first_name: Simon full_name: Friedberger, Simon last_name: Friedberger - first_name: Juraj full_name: Somorovsky, Juraj id: '83504' last_name: Somorovsky orcid: 0000-0002-3593-7720 - first_name: Jörg full_name: Schwenk, Jörg last_name: Schwenk citation: ama: 'Poddebniak D, Dresen C, Müller J, et al. Efail: Breaking S/MIME and OpenPGP Email Encryption using Exfiltration Channels. In: 27th {USENIX} Security Symposium ({USENIX} Security 18). Baltimore, MD: {USENIX} Association; 2018:549-566.' apa: 'Poddebniak, D., Dresen, C., Müller, J., Ising, F., Schinzel, S., Friedberger, S., … Schwenk, J. (2018). Efail: Breaking S/MIME and OpenPGP Email Encryption using Exfiltration Channels. In 27th {USENIX} Security Symposium ({USENIX} Security 18) (pp. 549–566). Baltimore, MD: {USENIX} Association.' bibtex: '@inproceedings{Poddebniak_Dresen_Müller_Ising_Schinzel_Friedberger_Somorovsky_Schwenk_2018, place={Baltimore, MD}, title={Efail: Breaking S/MIME and OpenPGP Email Encryption using Exfiltration Channels}, booktitle={27th {USENIX} Security Symposium ({USENIX} Security 18)}, publisher={{USENIX} Association}, author={Poddebniak, Damian and Dresen, Christian and Müller, Jens and Ising, Fabian and Schinzel, Sebastian and Friedberger, Simon and Somorovsky, Juraj and Schwenk, Jörg}, year={2018}, pages={549–566} }' chicago: 'Poddebniak, Damian, Christian Dresen, Jens Müller, Fabian Ising, Sebastian Schinzel, Simon Friedberger, Juraj Somorovsky, and Jörg Schwenk. “Efail: Breaking S/MIME and OpenPGP Email Encryption Using Exfiltration Channels.” In 27th {USENIX} Security Symposium ({USENIX} Security 18), 549–66. Baltimore, MD: {USENIX} Association, 2018.' ieee: 'D. Poddebniak et al., “Efail: Breaking S/MIME and OpenPGP Email Encryption using Exfiltration Channels,” in 27th {USENIX} Security Symposium ({USENIX} Security 18), 2018, pp. 549–566.' mla: 'Poddebniak, Damian, et al. “Efail: Breaking S/MIME and OpenPGP Email Encryption Using Exfiltration Channels.” 27th {USENIX} Security Symposium ({USENIX} Security 18), {USENIX} Association, 2018, pp. 549–66.' short: 'D. Poddebniak, C. Dresen, J. Müller, F. Ising, S. Schinzel, S. Friedberger, J. Somorovsky, J. Schwenk, in: 27th {USENIX} Security Symposium ({USENIX} Security 18), {USENIX} Association, Baltimore, MD, 2018, pp. 549–566.' date_created: 2020-02-15T09:49:36Z date_updated: 2022-01-06T06:52:40Z extern: '1' language: - iso: eng main_file_link: - open_access: '1' url: https://www.usenix.org/node/217635 oa: '1' page: 549-566 place: Baltimore, MD publication: 27th {USENIX} Security Symposium ({USENIX} Security 18) publication_identifier: isbn: - 978-1-939133-04-5 publisher: '{USENIX} Association' status: public title: 'Efail: Breaking S/MIME and OpenPGP Email Encryption using Exfiltration Channels' type: conference user_id: '83504' year: '2018' ... --- _id: '15906' author: - first_name: Hanno full_name: Böck, Hanno last_name: Böck - first_name: Juraj full_name: Somorovsky, Juraj id: '83504' last_name: Somorovsky orcid: 0000-0002-3593-7720 - first_name: Craig full_name: Young, Craig last_name: Young citation: ama: 'Böck H, Somorovsky J, Young C. Return Of Bleichenbacher\textquoterights Oracle Threat (ROBOT). In: 27th {USENIX} Security Symposium ({USENIX} Security 18). Baltimore, MD: {USENIX} Association; 2018:817-849.' apa: 'Böck, H., Somorovsky, J., & Young, C. (2018). Return Of Bleichenbacher\textquoterights Oracle Threat (ROBOT). In 27th {USENIX} Security Symposium ({USENIX} Security 18) (pp. 817–849). Baltimore, MD: {USENIX} Association.' bibtex: '@inproceedings{Böck_Somorovsky_Young_2018, place={Baltimore, MD}, title={Return Of Bleichenbacher\textquoterights Oracle Threat (ROBOT)}, booktitle={27th {USENIX} Security Symposium ({USENIX} Security 18)}, publisher={{USENIX} Association}, author={Böck, Hanno and Somorovsky, Juraj and Young, Craig}, year={2018}, pages={817–849} }' chicago: 'Böck, Hanno, Juraj Somorovsky, and Craig Young. “Return Of Bleichenbacher\textquoterights Oracle Threat (ROBOT).” In 27th {USENIX} Security Symposium ({USENIX} Security 18), 817–49. Baltimore, MD: {USENIX} Association, 2018.' ieee: H. Böck, J. Somorovsky, and C. Young, “Return Of Bleichenbacher\textquoterights Oracle Threat (ROBOT),” in 27th {USENIX} Security Symposium ({USENIX} Security 18), 2018, pp. 817–849. mla: Böck, Hanno, et al. “Return Of Bleichenbacher\textquoterights Oracle Threat (ROBOT).” 27th {USENIX} Security Symposium ({USENIX} Security 18), {USENIX} Association, 2018, pp. 817–49. short: 'H. Böck, J. Somorovsky, C. Young, in: 27th {USENIX} Security Symposium ({USENIX} Security 18), {USENIX} Association, Baltimore, MD, 2018, pp. 817–849.' date_created: 2020-02-15T09:49:57Z date_updated: 2022-01-06T06:52:40Z language: - iso: eng main_file_link: - open_access: '1' url: https://www.usenix.org/node/217495 oa: '1' page: 817-849 place: Baltimore, MD publication: 27th {USENIX} Security Symposium ({USENIX} Security 18) publication_identifier: isbn: - 978-1-939133-04-5 publisher: '{USENIX} Association' status: public title: Return Of Bleichenbacher\textquoterights Oracle Threat (ROBOT) type: conference user_id: '83504' year: '2018' ... --- _id: '15914' author: - first_name: Nils full_name: Engelbertz, Nils last_name: Engelbertz - first_name: Nurullah full_name: Erinola, Nurullah last_name: Erinola - first_name: David full_name: Herring, David last_name: Herring - first_name: Juraj full_name: Somorovsky, Juraj id: '83504' last_name: Somorovsky orcid: 0000-0002-3593-7720 - first_name: Vladislav full_name: Mladenov, Vladislav last_name: Mladenov - first_name: Jörg full_name: Schwenk, Jörg last_name: Schwenk citation: ama: 'Engelbertz N, Erinola N, Herring D, Somorovsky J, Mladenov V, Schwenk J. Security Analysis of eIDAS -- The Cross-Country Authentication Scheme in Europe. In: 12th {USENIX} Workshop on Offensive Technologies ({WOOT} 18). Baltimore, MD: {USENIX} Association; 2018.' apa: 'Engelbertz, N., Erinola, N., Herring, D., Somorovsky, J., Mladenov, V., & Schwenk, J. (2018). Security Analysis of eIDAS -- The Cross-Country Authentication Scheme in Europe. In 12th {USENIX} Workshop on Offensive Technologies ({WOOT} 18). Baltimore, MD: {USENIX} Association.' bibtex: '@inproceedings{Engelbertz_Erinola_Herring_Somorovsky_Mladenov_Schwenk_2018, place={Baltimore, MD}, title={Security Analysis of eIDAS -- The Cross-Country Authentication Scheme in Europe}, booktitle={12th {USENIX} Workshop on Offensive Technologies ({WOOT} 18)}, publisher={{USENIX} Association}, author={Engelbertz, Nils and Erinola, Nurullah and Herring, David and Somorovsky, Juraj and Mladenov, Vladislav and Schwenk, Jörg}, year={2018} }' chicago: 'Engelbertz, Nils, Nurullah Erinola, David Herring, Juraj Somorovsky, Vladislav Mladenov, and Jörg Schwenk. “Security Analysis of EIDAS -- The Cross-Country Authentication Scheme in Europe.” In 12th {USENIX} Workshop on Offensive Technologies ({WOOT} 18). Baltimore, MD: {USENIX} Association, 2018.' ieee: N. Engelbertz, N. Erinola, D. Herring, J. Somorovsky, V. Mladenov, and J. Schwenk, “Security Analysis of eIDAS -- The Cross-Country Authentication Scheme in Europe,” in 12th {USENIX} Workshop on Offensive Technologies ({WOOT} 18), 2018. mla: Engelbertz, Nils, et al. “Security Analysis of EIDAS -- The Cross-Country Authentication Scheme in Europe.” 12th {USENIX} Workshop on Offensive Technologies ({WOOT} 18), {USENIX} Association, 2018. short: 'N. Engelbertz, N. Erinola, D. Herring, J. Somorovsky, V. Mladenov, J. Schwenk, in: 12th {USENIX} Workshop on Offensive Technologies ({WOOT} 18), {USENIX} Association, Baltimore, MD, 2018.' date_created: 2020-02-15T10:07:49Z date_updated: 2022-01-06T06:52:40Z extern: '1' language: - iso: eng main_file_link: - open_access: '1' url: https://www.usenix.org/node/220571 oa: '1' place: Baltimore, MD publication: 12th {USENIX} Workshop on Offensive Technologies ({WOOT} 18) publisher: '{USENIX} Association' status: public title: Security Analysis of eIDAS -- The Cross-Country Authentication Scheme in Europe type: conference user_id: '83504' year: '2018' ... --- _id: '16042' author: - first_name: Marcel full_name: Triebus, Marcel id: '66036' last_name: Triebus - first_name: Thomas full_name: Tröster, Thomas id: '553' last_name: Tröster - first_name: Alan Adam full_name: Camberg, Alan Adam id: '60544' last_name: Camberg - first_name: S. full_name: Bienia, S. last_name: Bienia - first_name: K. full_name: Dröder, K. last_name: Dröder citation: ama: 'Triebus M, Tröster T, Camberg AA, Bienia S, Dröder K. Modelling the Interface of Hybrid Metal-FRP Components Joint by Form Closures. In: 15. Deutsches LS-Dyna Forum. ; 2018.' apa: Triebus, M., Tröster, T., Camberg, A. A., Bienia, S., & Dröder, K. (2018). Modelling the Interface of Hybrid Metal-FRP Components Joint by Form Closures. In 15. Deutsches LS-Dyna Forum. Bamberg. bibtex: '@inproceedings{Triebus_Tröster_Camberg_Bienia_Dröder_2018, title={Modelling the Interface of Hybrid Metal-FRP Components Joint by Form Closures}, booktitle={15. Deutsches LS-Dyna Forum}, author={Triebus, Marcel and Tröster, Thomas and Camberg, Alan Adam and Bienia, S. and Dröder, K.}, year={2018} }' chicago: Triebus, Marcel, Thomas Tröster, Alan Adam Camberg, S. Bienia, and K. Dröder. “Modelling the Interface of Hybrid Metal-FRP Components Joint by Form Closures.” In 15. Deutsches LS-Dyna Forum, 2018. ieee: M. Triebus, T. Tröster, A. A. Camberg, S. Bienia, and K. Dröder, “Modelling the Interface of Hybrid Metal-FRP Components Joint by Form Closures,” in 15. Deutsches LS-Dyna Forum, Bamberg, 2018. mla: Triebus, Marcel, et al. “Modelling the Interface of Hybrid Metal-FRP Components Joint by Form Closures.” 15. Deutsches LS-Dyna Forum, 2018. short: 'M. Triebus, T. Tröster, A.A. Camberg, S. Bienia, K. Dröder, in: 15. Deutsches LS-Dyna Forum, 2018.' conference: end_date: 2018-10-17 location: Bamberg name: 15. Deutsches LS-Dyna Forum start_date: 2018-10-15 date_created: 2020-02-24T16:03:13Z date_updated: 2022-01-06T06:52:42Z department: - _id: '9' - _id: '321' - _id: '149' language: - iso: eng main_file_link: - open_access: '1' url: https://www.dynamore.de/de/download/papers/2018-ls-dyna-forum/papers-2018/montag-15.-oktober-2018/crash-lightweight-composites/modelling-the-interface-of-hybrid-metal-frp-components-joint-by-form-closures oa: '1' popular_science: '1' publication: 15. Deutsches LS-Dyna Forum status: public title: Modelling the Interface of Hybrid Metal-FRP Components Joint by Form Closures type: conference user_id: '60544' year: '2018' ... --- _id: '16043' author: - first_name: Alan Adam full_name: Camberg, Alan Adam id: '60544' last_name: Camberg - first_name: Thomas full_name: Tröster, Thomas id: '553' last_name: Tröster - first_name: A. full_name: Schneidt , A. last_name: 'Schneidt ' - first_name: N. full_name: Sotirov , N. last_name: 'Sotirov ' - first_name: J. full_name: Tölle, J. last_name: Tölle citation: ama: 'Camberg AA, Tröster T, Schneidt A, Sotirov N, Tölle J. The influence of damage accumulation on failure prediction: a comparative assessment of *MAT_224 and *MAT_024 + GISSMO for the application in non-isothermal sheet metal forming. In: 15. Deutsches LS-Dyna Forum. ; 2018.' apa: 'Camberg, A. A., Tröster, T., Schneidt , A., Sotirov , N., & Tölle, J. (2018). The influence of damage accumulation on failure prediction: a comparative assessment of *MAT_224 and *MAT_024 + GISSMO for the application in non-isothermal sheet metal forming. In 15. Deutsches LS-Dyna Forum. Bamberg.' bibtex: '@inproceedings{Camberg_Tröster_Schneidt _Sotirov _Tölle_2018, title={The influence of damage accumulation on failure prediction: a comparative assessment of *MAT_224 and *MAT_024 + GISSMO for the application in non-isothermal sheet metal forming}, booktitle={15. Deutsches LS-Dyna Forum}, author={Camberg, Alan Adam and Tröster, Thomas and Schneidt , A. and Sotirov , N. and Tölle, J.}, year={2018} }' chicago: 'Camberg, Alan Adam, Thomas Tröster, A. Schneidt , N. Sotirov , and J. Tölle. “The Influence of Damage Accumulation on Failure Prediction: A Comparative Assessment of *MAT_224 and *MAT_024 + GISSMO for the Application in Non-Isothermal Sheet Metal Forming.” In 15. Deutsches LS-Dyna Forum, 2018.' ieee: 'A. A. Camberg, T. Tröster, A. Schneidt , N. Sotirov , and J. Tölle, “The influence of damage accumulation on failure prediction: a comparative assessment of *MAT_224 and *MAT_024 + GISSMO for the application in non-isothermal sheet metal forming,” in 15. Deutsches LS-Dyna Forum, Bamberg, 2018.' mla: 'Camberg, Alan Adam, et al. “The Influence of Damage Accumulation on Failure Prediction: A Comparative Assessment of *MAT_224 and *MAT_024 + GISSMO for the Application in Non-Isothermal Sheet Metal Forming.” 15. Deutsches LS-Dyna Forum, 2018.' short: 'A.A. Camberg, T. Tröster, A. Schneidt , N. Sotirov , J. Tölle, in: 15. Deutsches LS-Dyna Forum, 2018.' conference: end_date: 2018-10-17 location: Bamberg name: 15. Deutsches LS-Dyna Forum start_date: 2018-10-15 date_created: 2020-02-24T16:05:37Z date_updated: 2022-01-06T06:52:42Z department: - _id: '9' - _id: '321' - _id: '149' language: - iso: eng main_file_link: - open_access: '1' url: https://www.dynamore.de/de/download/papers/2018-ls-dyna-forum/papers-2018/dienstag-16.-oktober/process-metal-forming-iii/the-influence-of-damage-accumulation-on-failure-prediction-a-comparative-assessment-of-mat_224-and-mat_024-gissmo-for-the-application-in-non-isothermal-sheet-metal-forming oa: '1' popular_science: '1' publication: 15. Deutsches LS-Dyna Forum status: public title: 'The influence of damage accumulation on failure prediction: a comparative assessment of *MAT_224 and *MAT_024 + GISSMO for the application in non-isothermal sheet metal forming' type: conference user_id: '60544' year: '2018' ... --- _id: '16292' abstract: - lang: eng text: "In a recent article, we presented a framework to control nonlinear partial\r\ndifferential equations (PDEs) by means of Koopman operator based reduced models\r\nand concepts from switched systems. The main idea was to transform a control\r\nsystem into a set of autonomous systems for which the optimal switching\r\nsequence has to be computed. These individual systems can be approximated very\r\nefficiently by reduced order models obtained from data, and one can guarantee\r\nequality of the full and the reduced objective function under certain\r\nassumptions. In this article, we extend these results to continuous control\r\ninputs using convex combinations of multiple Koopman operators corresponding to\r\nconstant controls, which results in a bilinear control system. Although\r\nequality of the objectives can be carried over when the PDE depends linearly on\r\nthe control, we show that this approach is also valid in other scenarios using\r\nseveral flow control examples of varying complexity." author: - first_name: Sebastian full_name: Peitz, Sebastian id: '47427' last_name: Peitz orcid: https://orcid.org/0000-0002-3389-793X citation: ama: Peitz S. Controlling nonlinear PDEs using low-dimensional bilinear approximations  obtained from data. arXiv:180106419. 2018. apa: Peitz, S. (2018). Controlling nonlinear PDEs using low-dimensional bilinear approximations  obtained from data. ArXiv:1801.06419. bibtex: '@article{Peitz_2018, title={Controlling nonlinear PDEs using low-dimensional bilinear approximations  obtained from data}, journal={arXiv:1801.06419}, author={Peitz, Sebastian}, year={2018} }' chicago: Peitz, Sebastian. “Controlling Nonlinear PDEs Using Low-Dimensional Bilinear Approximations  Obtained from Data.” ArXiv:1801.06419, 2018. ieee: S. Peitz, “Controlling nonlinear PDEs using low-dimensional bilinear approximations  obtained from data,” arXiv:1801.06419. 2018. mla: Peitz, Sebastian. “Controlling Nonlinear PDEs Using Low-Dimensional Bilinear Approximations  Obtained from Data.” ArXiv:1801.06419, 2018. short: S. Peitz, ArXiv:1801.06419 (2018). date_created: 2020-03-13T12:43:14Z date_updated: 2022-01-06T06:52:48Z department: - _id: '101' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/pdf/1801.06419.pdf oa: '1' publication: arXiv:1801.06419 status: public title: Controlling nonlinear PDEs using low-dimensional bilinear approximations obtained from data type: preprint user_id: '47427' year: '2018' ... --- _id: '16293' abstract: - lang: eng text: "Kernel transfer operators, which can be regarded as approximations of\r\ntransfer operators such as the Perron-Frobenius or Koopman operator in\r\nreproducing kernel Hilbert spaces, are defined in terms of covariance and\r\ncross-covariance operators and have been shown to be closely related to the\r\nconditional mean embedding framework developed by the machine learning\r\ncommunity. The goal of this paper is to show how the dominant eigenfunctions of\r\nthese operators in combination with gradient-based optimization techniques can\r\nbe used to detect long-lived coherent patterns in high-dimensional time-series\r\ndata. The results will be illustrated using video data and a fluid flow\r\nexample." author: - first_name: Stefan full_name: Klus, Stefan last_name: Klus - first_name: Sebastian full_name: Peitz, Sebastian id: '47427' last_name: Peitz orcid: https://orcid.org/0000-0002-3389-793X - first_name: Ingmar full_name: Schuster, Ingmar last_name: Schuster citation: ama: Klus S, Peitz S, Schuster I. Analyzing high-dimensional time-series data using kernel transfer  operator eigenfunctions. arXiv:180510118. 2018. apa: Klus, S., Peitz, S., & Schuster, I. (2018). Analyzing high-dimensional time-series data using kernel transfer  operator eigenfunctions. ArXiv:1805.10118. bibtex: '@article{Klus_Peitz_Schuster_2018, title={Analyzing high-dimensional time-series data using kernel transfer  operator eigenfunctions}, journal={arXiv:1805.10118}, author={Klus, Stefan and Peitz, Sebastian and Schuster, Ingmar}, year={2018} }' chicago: Klus, Stefan, Sebastian Peitz, and Ingmar Schuster. “Analyzing High-Dimensional Time-Series Data Using Kernel Transfer  Operator Eigenfunctions.” ArXiv:1805.10118, 2018. ieee: S. Klus, S. Peitz, and I. Schuster, “Analyzing high-dimensional time-series data using kernel transfer  operator eigenfunctions,” arXiv:1805.10118. 2018. mla: Klus, Stefan, et al. “Analyzing High-Dimensional Time-Series Data Using Kernel Transfer  Operator Eigenfunctions.” ArXiv:1805.10118, 2018. short: S. Klus, S. Peitz, I. Schuster, ArXiv:1805.10118 (2018). date_created: 2020-03-13T12:44:12Z date_updated: 2022-01-06T06:52:48Z department: - _id: '101' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/pdf/1805.10118.pdf oa: '1' project: - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: arXiv:1805.10118 status: public title: Analyzing high-dimensional time-series data using kernel transfer operator eigenfunctions type: preprint user_id: '47427' year: '2018' ... --- _id: '1430' author: - first_name: Sandro P. full_name: Hoffmann, Sandro P. last_name: Hoffmann - first_name: Maximilian full_name: Albert, Maximilian last_name: Albert - first_name: Nils full_name: Weber, Nils last_name: Weber - first_name: Denis full_name: Sievers, Denis last_name: Sievers - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 - first_name: Cedrik full_name: Meier, Cedrik id: '20798' last_name: Meier orcid: https://orcid.org/0000-0002-3787-3572 citation: ama: Hoffmann SP, Albert M, Weber N, et al. Tailored UV Emission by Nonlinear IR Excitation from ZnO Photonic Crystal Nanocavities. ACS Photonics. 2018;5:1933-1942. doi:10.1021/acsphotonics.7b01228 apa: Hoffmann, S. P., Albert, M., Weber, N., Sievers, D., Förstner, J., Zentgraf, T., & Meier, C. (2018). Tailored UV Emission by Nonlinear IR Excitation from ZnO Photonic Crystal Nanocavities. ACS Photonics, 5, 1933–1942. https://doi.org/10.1021/acsphotonics.7b01228 bibtex: '@article{Hoffmann_Albert_Weber_Sievers_Förstner_Zentgraf_Meier_2018, title={Tailored UV Emission by Nonlinear IR Excitation from ZnO Photonic Crystal Nanocavities}, volume={5}, DOI={10.1021/acsphotonics.7b01228}, journal={ACS Photonics}, publisher={American Chemical Society (ACS)}, author={Hoffmann, Sandro P. and Albert, Maximilian and Weber, Nils and Sievers, Denis and Förstner, Jens and Zentgraf, Thomas and Meier, Cedrik}, year={2018}, pages={1933–1942} }' chicago: 'Hoffmann, Sandro P., Maximilian Albert, Nils Weber, Denis Sievers, Jens Förstner, Thomas Zentgraf, and Cedrik Meier. “Tailored UV Emission by Nonlinear IR Excitation from ZnO Photonic Crystal Nanocavities.” ACS Photonics 5 (2018): 1933–42. https://doi.org/10.1021/acsphotonics.7b01228.' ieee: S. P. Hoffmann et al., “Tailored UV Emission by Nonlinear IR Excitation from ZnO Photonic Crystal Nanocavities,” ACS Photonics, vol. 5, pp. 1933–1942, 2018. mla: Hoffmann, Sandro P., et al. “Tailored UV Emission by Nonlinear IR Excitation from ZnO Photonic Crystal Nanocavities.” ACS Photonics, vol. 5, American Chemical Society (ACS), 2018, pp. 1933–42, doi:10.1021/acsphotonics.7b01228. short: S.P. Hoffmann, M. Albert, N. Weber, D. Sievers, J. Förstner, T. Zentgraf, C. Meier, ACS Photonics 5 (2018) 1933–1942. date_created: 2018-03-20T07:39:36Z date_updated: 2022-01-06T06:51:58Z ddc: - '530' department: - _id: '15' - _id: '230' - _id: '61' - _id: '287' - _id: '35' - _id: '289' doi: 10.1021/acsphotonics.7b01228 file: - access_level: open_access content_type: application/pdf creator: fossie date_created: 2018-08-16T07:49:44Z date_updated: 2018-08-21T10:38:31Z file_id: '3915' file_name: 2018-03 Hoffmann ACS Photonics - Tailored UV Emission by nonlinear IR excitation from ZnO photonic crystal nanocavities.pdf file_size: 2935858 relation: main_file file_date_updated: 2018-08-21T10:38:31Z has_accepted_license: '1' intvolume: ' 5' keyword: - tet_topic_phc language: - iso: eng oa: '1' page: 1933-1942 project: - _id: '53' name: TRR 142 - _id: '54' name: TRR 142 - Project Area A - _id: '55' name: TRR 142 - Project Area B - _id: '62' name: TRR 142 - Subproject A5 - _id: '66' name: TRR 142 - Subproject B1 publication: ACS Photonics publication_identifier: issn: - 2330-4022 - 2330-4022 publication_status: published publisher: American Chemical Society (ACS) status: public title: Tailored UV Emission by Nonlinear IR Excitation from ZnO Photonic Crystal Nanocavities type: journal_article urn: '14308' user_id: '30525' volume: 5 year: '2018' ... --- _id: '13410' article_number: '019902' author: - first_name: Michael full_name: Friedrich, Michael last_name: Friedrich - first_name: Wolf Gero full_name: Schmidt, Wolf Gero id: '468' last_name: Schmidt orcid: 0000-0002-2717-5076 - first_name: Arno full_name: Schindlmayr, Arno id: '458' last_name: Schindlmayr orcid: 0000-0002-4855-071X - first_name: Simone full_name: Sanna, Simone last_name: Sanna citation: ama: 'Friedrich M, Schmidt WG, Schindlmayr A, Sanna S. Erratum: Optical properties of titanium-doped lithium niobate from time-dependent density-functional theory [Phys. Rev. Materials 1, 034401 (2017)]. Physical Review Materials. 2018;2(1). doi:10.1103/PhysRevMaterials.2.019902' apa: 'Friedrich, M., Schmidt, W. G., Schindlmayr, A., & Sanna, S. (2018). Erratum: Optical properties of titanium-doped lithium niobate from time-dependent density-functional theory [Phys. Rev. Materials 1, 034401 (2017)]. Physical Review Materials, 2(1). https://doi.org/10.1103/PhysRevMaterials.2.019902' bibtex: '@article{Friedrich_Schmidt_Schindlmayr_Sanna_2018, title={Erratum: Optical properties of titanium-doped lithium niobate from time-dependent density-functional theory [Phys. Rev. Materials 1, 034401 (2017)]}, volume={2}, DOI={10.1103/PhysRevMaterials.2.019902}, number={1019902}, journal={Physical Review Materials}, publisher={American Physical Society}, author={Friedrich, Michael and Schmidt, Wolf Gero and Schindlmayr, Arno and Sanna, Simone}, year={2018} }' chicago: 'Friedrich, Michael, Wolf Gero Schmidt, Arno Schindlmayr, and Simone Sanna. “Erratum: Optical Properties of Titanium-Doped Lithium Niobate from Time-Dependent Density-Functional Theory [Phys. Rev. Materials 1, 034401 (2017)].” Physical Review Materials 2, no. 1 (2018). https://doi.org/10.1103/PhysRevMaterials.2.019902.' ieee: 'M. Friedrich, W. G. Schmidt, A. Schindlmayr, and S. Sanna, “Erratum: Optical properties of titanium-doped lithium niobate from time-dependent density-functional theory [Phys. Rev. Materials 1, 034401 (2017)],” Physical Review Materials, vol. 2, no. 1, 2018.' mla: 'Friedrich, Michael, et al. “Erratum: Optical Properties of Titanium-Doped Lithium Niobate from Time-Dependent Density-Functional Theory [Phys. Rev. Materials 1, 034401 (2017)].” Physical Review Materials, vol. 2, no. 1, 019902, American Physical Society, 2018, doi:10.1103/PhysRevMaterials.2.019902.' short: M. Friedrich, W.G. Schmidt, A. Schindlmayr, S. Sanna, Physical Review Materials 2 (2018). date_created: 2019-09-20T11:28:23Z date_updated: 2022-01-06T06:51:35Z ddc: - '530' department: - _id: '295' - _id: '296' - _id: '230' - _id: '429' doi: 10.1103/PhysRevMaterials.2.019902 external_id: isi: - '000419778500006' file: - access_level: open_access content_type: application/pdf creator: schindlm date_created: 2020-08-28T09:11:59Z date_updated: 2020-08-30T14:34:54Z description: © 2018 American Physical Society file_id: '18536' file_name: PhysRevMaterials.2.019902.pdf file_size: 178961 relation: main_file title: 'Erratum: Optical properties of titanium-doped lithium niobate from time-dependent density-functional theory [Phys. Rev. Materials 1, 034401 (2017)]' file_date_updated: 2020-08-30T14:34:54Z has_accepted_license: '1' intvolume: ' 2' isi: '1' issue: '1' language: - iso: eng oa: '1' project: - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing - _id: '53' name: TRR 142 - _id: '55' name: TRR 142 - Project Area B - _id: '68' name: TRR 142 - Subproject B3 - _id: '69' name: TRR 142 - Subproject B4 publication: Physical Review Materials publication_identifier: eissn: - 2475-9953 publication_status: published publisher: American Physical Society quality_controlled: '1' related_material: record: - id: '10021' relation: other status: public status: public title: 'Erratum: Optical properties of titanium-doped lithium niobate from time-dependent density-functional theory [Phys. Rev. Materials 1, 034401 (2017)]' type: journal_article user_id: '458' volume: 2 year: '2018' ...