[{"intvolume":"        19","page":"206-219","citation":{"mla":"Krueger, Alexander, et al. “Speech Enhancement With a GSC-Like Structure Employing Eigenvector-Based Transfer Function Ratios Estimation.” <i>IEEE Transactions on Audio, Speech, and Language Processing</i>, vol. 19, no. 1, 2011, pp. 206–19, doi:<a href=\"https://doi.org/10.1109/TASL.2010.2047324\">10.1109/TASL.2010.2047324</a>.","bibtex":"@article{Krueger_Warsitz_Haeb-Umbach_2011, title={Speech Enhancement With a GSC-Like Structure Employing Eigenvector-Based Transfer Function Ratios Estimation}, volume={19}, DOI={<a href=\"https://doi.org/10.1109/TASL.2010.2047324\">10.1109/TASL.2010.2047324</a>}, number={1}, journal={IEEE Transactions on Audio, Speech, and Language Processing}, author={Krueger, Alexander and Warsitz, Ernst and Haeb-Umbach, Reinhold}, year={2011}, pages={206–219} }","short":"A. Krueger, E. Warsitz, R. Haeb-Umbach, IEEE Transactions on Audio, Speech, and Language Processing 19 (2011) 206–219.","apa":"Krueger, A., Warsitz, E., &#38; Haeb-Umbach, R. (2011). Speech Enhancement With a GSC-Like Structure Employing Eigenvector-Based Transfer Function Ratios Estimation. <i>IEEE Transactions on Audio, Speech, and Language Processing</i>, <i>19</i>(1), 206–219. <a href=\"https://doi.org/10.1109/TASL.2010.2047324\">https://doi.org/10.1109/TASL.2010.2047324</a>","ama":"Krueger A, Warsitz E, Haeb-Umbach R. Speech Enhancement With a GSC-Like Structure Employing Eigenvector-Based Transfer Function Ratios Estimation. <i>IEEE Transactions on Audio, Speech, and Language Processing</i>. 2011;19(1):206-219. doi:<a href=\"https://doi.org/10.1109/TASL.2010.2047324\">10.1109/TASL.2010.2047324</a>","chicago":"Krueger, Alexander, Ernst Warsitz, and Reinhold Haeb-Umbach. “Speech Enhancement With a GSC-Like Structure Employing Eigenvector-Based Transfer Function Ratios Estimation.” <i>IEEE Transactions on Audio, Speech, and Language Processing</i> 19, no. 1 (2011): 206–19. <a href=\"https://doi.org/10.1109/TASL.2010.2047324\">https://doi.org/10.1109/TASL.2010.2047324</a>.","ieee":"A. Krueger, E. Warsitz, and R. Haeb-Umbach, “Speech Enhancement With a GSC-Like Structure Employing Eigenvector-Based Transfer Function Ratios Estimation,” <i>IEEE Transactions on Audio, Speech, and Language Processing</i>, vol. 19, no. 1, pp. 206–219, 2011."},"volume":19,"author":[{"full_name":"Krueger, Alexander","last_name":"Krueger","first_name":"Alexander"},{"first_name":"Ernst","last_name":"Warsitz","full_name":"Warsitz, Ernst"},{"first_name":"Reinhold","id":"242","full_name":"Haeb-Umbach, Reinhold","last_name":"Haeb-Umbach"}],"oa":"1","date_updated":"2022-01-06T06:51:11Z","doi":"10.1109/TASL.2010.2047324","main_file_link":[{"url":"https://groups.uni-paderborn.de/nt/pubs/2011/KrWaHa11.pdf","open_access":"1"}],"type":"journal_article","status":"public","department":[{"_id":"54"}],"user_id":"44006","_id":"11850","issue":"1","year":"2011","date_created":"2019-07-12T05:29:28Z","title":"Speech Enhancement With a GSC-Like Structure Employing Eigenvector-Based Transfer Function Ratios Estimation","publication":"IEEE Transactions on Audio, Speech, and Language Processing","abstract":[{"text":"In this paper, we present a novel blocking matrix and fixed beamformer design for a generalized sidelobe canceler for speech enhancement in a reverberant enclosure. They are based on a new method for estimating the acoustical transfer function ratios in the presence of stationary noise. The estimation method relies on solving a generalized eigenvalue problem in each frequency bin. An adaptive eigenvector tracking utilizing the power iteration method is employed and shown to achieve a high convergence speed. Simulation results demonstrate that the proposed beamformer leads to better noise and interference reduction and reduced speech distortions compared to other blocking matrix designs from the literature.","lang":"eng"}],"language":[{"iso":"eng"}],"keyword":["acoustical transfer function ratio","adaptive eigenvector tracking","array signal processing","beamformer design","blocking matrix","eigenvalues and eigenfunctions","eigenvector-based transfer function ratios estimation","generalized sidelobe canceler","interference reduction","iterative methods","power iteration method","reduced speech distortions","reverberant enclosure","reverberation","speech enhancement","stationary noise"]},{"main_file_link":[{"open_access":"1","url":"https://groups.uni-paderborn.de/nt/pubs/2008/WaKrHa08.pdf"}],"doi":"10.1109/ICASSP.2008.4517549","title":"Speech enhancement with a new generalized eigenvector blocking matrix for application in a generalized sidelobe canceller","date_created":"2019-07-12T05:31:06Z","author":[{"first_name":"Ernst","last_name":"Warsitz","full_name":"Warsitz, Ernst"},{"full_name":"Krueger, Alexander","last_name":"Krueger","first_name":"Alexander"},{"first_name":"Reinhold","id":"242","full_name":"Haeb-Umbach, Reinhold","last_name":"Haeb-Umbach"}],"oa":"1","date_updated":"2022-01-06T06:51:12Z","citation":{"short":"E. Warsitz, A. Krueger, R. Haeb-Umbach, in: IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008), 2008, pp. 73–76.","bibtex":"@inproceedings{Warsitz_Krueger_Haeb-Umbach_2008, title={Speech enhancement with a new generalized eigenvector blocking matrix for application in a generalized sidelobe canceller}, DOI={<a href=\"https://doi.org/10.1109/ICASSP.2008.4517549\">10.1109/ICASSP.2008.4517549</a>}, booktitle={IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008)}, author={Warsitz, Ernst and Krueger, Alexander and Haeb-Umbach, Reinhold}, year={2008}, pages={73–76} }","mla":"Warsitz, Ernst, et al. “Speech Enhancement with a New Generalized Eigenvector Blocking Matrix for Application in a Generalized Sidelobe Canceller.” <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008)</i>, 2008, pp. 73–76, doi:<a href=\"https://doi.org/10.1109/ICASSP.2008.4517549\">10.1109/ICASSP.2008.4517549</a>.","apa":"Warsitz, E., Krueger, A., &#38; Haeb-Umbach, R. (2008). Speech enhancement with a new generalized eigenvector blocking matrix for application in a generalized sidelobe canceller. In <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008)</i> (pp. 73–76). <a href=\"https://doi.org/10.1109/ICASSP.2008.4517549\">https://doi.org/10.1109/ICASSP.2008.4517549</a>","ama":"Warsitz E, Krueger A, Haeb-Umbach R. Speech enhancement with a new generalized eigenvector blocking matrix for application in a generalized sidelobe canceller. In: <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008)</i>. ; 2008:73-76. doi:<a href=\"https://doi.org/10.1109/ICASSP.2008.4517549\">10.1109/ICASSP.2008.4517549</a>","ieee":"E. Warsitz, A. Krueger, and R. Haeb-Umbach, “Speech enhancement with a new generalized eigenvector blocking matrix for application in a generalized sidelobe canceller,” in <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008)</i>, 2008, pp. 73–76.","chicago":"Warsitz, Ernst, Alexander Krueger, and Reinhold Haeb-Umbach. “Speech Enhancement with a New Generalized Eigenvector Blocking Matrix for Application in a Generalized Sidelobe Canceller.” In <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008)</i>, 73–76, 2008. <a href=\"https://doi.org/10.1109/ICASSP.2008.4517549\">https://doi.org/10.1109/ICASSP.2008.4517549</a>."},"page":"73-76","year":"2008","language":[{"iso":"eng"}],"keyword":["adaptive interference canceller","adaptive signal processing","array signal processing","beamforming method","eigenvalues and eigenfunctions","generalized eigenvector blocking matrix","generalized sidelobe canceller","interference suppression","matrix algebra","noise suppression","speech enhancement","transfer function estimation","transfer functions"],"user_id":"44006","department":[{"_id":"54"}],"_id":"11935","status":"public","abstract":[{"text":"The generalized sidelobe canceller by Griffith and Jim is a robust beamforming method to enhance a desired (speech) signal in the presence of stationary noise. Its performance depends to a high degree on the construction of the blocking matrix which produces noise reference signals for the subsequent adaptive interference canceller. Especially in reverberated environments the beamformer may suffer from signal leakage and reduced noise suppression. In this paper a new blocking matrix is proposed. It is based on a generalized eigenvalue problem whose solution provides an indirect estimation of the transfer functions from the source to the sensors. The quality of the new generalized eigenvector blocking matrix is studied in simulated rooms with different reverberation times and is compared to alternatives proposed in the literature.","lang":"eng"}],"type":"conference","publication":"IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008)"},{"status":"public","editor":[{"last_name":"Isaias","full_name":"Isaias, Pedro","first_name":"Pedro"}],"type":"conference","file_date_updated":"2018-12-18T13:33:30Z","extern":"1","department":[{"_id":"277"}],"user_id":"61579","_id":"5663","page":"937-940","citation":{"apa":"Schryen, G. (2004). Fighting Spam: Motivating an Account-based Approach. In P. Isaias (Ed.), <i>Proceedings of the IADIS International Conference WWW/Internet 2004. vol. 2</i> (pp. 937–940). Madrid: IADIS Press.","mla":"Schryen, Guido. “Fighting Spam: Motivating an Account-Based Approach.” <i>Proceedings of the IADIS International Conference WWW/Internet 2004. Vol. 2</i>, edited by Pedro Isaias, IADIS Press, 2004, pp. 937–40.","short":"G. Schryen, in: P. Isaias (Ed.), Proceedings of the IADIS International Conference WWW/Internet 2004. Vol. 2, IADIS Press, Madrid, 2004, pp. 937–940.","bibtex":"@inproceedings{Schryen_2004, place={Madrid}, title={Fighting Spam: Motivating an Account-based Approach}, booktitle={Proceedings of the IADIS International Conference WWW/Internet 2004. vol. 2}, publisher={IADIS Press}, author={Schryen, Guido}, editor={Isaias, PedroEditor}, year={2004}, pages={937–940} }","ama":"Schryen G. Fighting Spam: Motivating an Account-based Approach. In: Isaias P, ed. <i>Proceedings of the IADIS International Conference WWW/Internet 2004. Vol. 2</i>. Madrid: IADIS Press; 2004:937-940.","chicago":"Schryen, Guido. “Fighting Spam: Motivating an Account-Based Approach.” In <i>Proceedings of the IADIS International Conference WWW/Internet 2004. Vol. 2</i>, edited by Pedro Isaias, 937–40. Madrid: IADIS Press, 2004.","ieee":"G. Schryen, “Fighting Spam: Motivating an Account-based Approach,” in <i>Proceedings of the IADIS International Conference WWW/Internet 2004. vol. 2</i>, 2004, pp. 937–940."},"place":"Madrid","has_accepted_license":"1","author":[{"last_name":"Schryen","full_name":"Schryen, Guido","id":"72850","first_name":"Guido"}],"oa":"1","date_updated":"2022-01-06T07:02:25Z","file":[{"relation":"main_file","content_type":"application/pdf","file_size":46083,"access_level":"open_access","file_id":"6333","file_name":"Fighting Spam_Motivating an account-based approach.pdf","date_updated":"2018-12-18T13:33:30Z","date_created":"2018-12-18T13:33:30Z","creator":"hsiemes"}],"abstract":[{"lang":"eng","text":"Spam as unsolicited e-mail to a large number of recipients is known to ecome an increasingly disturbing and costly issue of electronic business and internet traffic. Mainly technical-oriented approaches are applied with a focus on blocking, filtering, and authentication mechanisms based on the domain name system. They come along with different drawbacks and have all low effectiveness in common. The article sketches these approaches, shows its limitations, and proposes an account-based approach where the number of e-mails per day and account is restricted."}],"publication":"Proceedings of the IADIS International Conference WWW/Internet 2004. vol. 2","language":[{"iso":"eng"}],"keyword":["e-mail","spam","filtering","blocking","LMAP","SMTP account"],"ddc":["000"],"year":"2004","title":"Fighting Spam: Motivating an Account-based Approach","date_created":"2018-11-14T14:59:03Z","publisher":"IADIS Press"}]