--- _id: '31369' author: - first_name: Anja full_name: Panse, Anja last_name: Panse - first_name: Joachim full_name: Hilgert, Joachim id: '220' last_name: Hilgert - first_name: Max full_name: Hoffmann, Max id: '32202' last_name: Hoffmann orcid: 0000-0002-6964-7123 citation: ama: 'Panse A, Hilgert J, Hoffmann M. Handlungsbedarf in fachmathematischen Veranstaltungen? – Spezielle Maßnahmen an der Universität Paderborn. In: Roth J, Ames J, eds. Beiträge zum Mathematikunterricht 2014. WTM-Verlag; 2014:883–886. doi:10.17877/DE290R-15591' apa: Panse, A., Hilgert, J., & Hoffmann, M. (2014). Handlungsbedarf in fachmathematischen Veranstaltungen? – Spezielle Maßnahmen an der Universität Paderborn. In J. Roth & J. Ames (Eds.), Beiträge zum Mathematikunterricht 2014 (pp. 883–886). WTM-Verlag. https://doi.org/10.17877/DE290R-15591 bibtex: '@inproceedings{Panse_Hilgert_Hoffmann_2014, place={Münster}, title={Handlungsbedarf in fachmathematischen Veranstaltungen? – Spezielle Maßnahmen an der Universität Paderborn}, DOI={10.17877/DE290R-15591}, booktitle={Beiträge zum Mathematikunterricht 2014}, publisher={WTM-Verlag}, author={Panse, Anja and Hilgert, Joachim and Hoffmann, Max}, editor={Roth, Jürgen and Ames, Judith}, year={2014}, pages={883–886} }' chicago: 'Panse, Anja, Joachim Hilgert, and Max Hoffmann. “Handlungsbedarf in fachmathematischen Veranstaltungen? – Spezielle Maßnahmen an der Universität Paderborn.” In Beiträge zum Mathematikunterricht 2014, edited by Jürgen Roth and Judith Ames, 883–886. Münster: WTM-Verlag, 2014. https://doi.org/10.17877/DE290R-15591.' ieee: 'A. Panse, J. Hilgert, and M. Hoffmann, “Handlungsbedarf in fachmathematischen Veranstaltungen? – Spezielle Maßnahmen an der Universität Paderborn,” in Beiträge zum Mathematikunterricht 2014, 2014, pp. 883–886, doi: 10.17877/DE290R-15591.' mla: Panse, Anja, et al. “Handlungsbedarf in fachmathematischen Veranstaltungen? – Spezielle Maßnahmen an der Universität Paderborn.” Beiträge zum Mathematikunterricht 2014, edited by Jürgen Roth and Judith Ames, WTM-Verlag, 2014, pp. 883–886, doi:10.17877/DE290R-15591. short: 'A. Panse, J. Hilgert, M. Hoffmann, in: J. Roth, J. Ames (Eds.), Beiträge zum Mathematikunterricht 2014, WTM-Verlag, Münster, 2014, pp. 883–886.' date_created: 2022-05-22T14:23:39Z date_updated: 2024-02-19T06:19:20Z department: - _id: '91' - _id: '97' doi: 10.17877/DE290R-15591 editor: - first_name: Jürgen full_name: Roth, Jürgen last_name: Roth - first_name: Judith full_name: Ames, Judith last_name: Ames language: - iso: ger main_file_link: - open_access: '1' url: https://eldorado.tu-dortmund.de/handle/2003/33279 oa: '1' page: 883–886 place: Münster publication: Beiträge zum Mathematikunterricht 2014 publication_status: published publisher: WTM-Verlag status: public title: Handlungsbedarf in fachmathematischen Veranstaltungen? – Spezielle Maßnahmen an der Universität Paderborn type: conference user_id: '49063' year: '2014' ... --- _id: '2733' author: - first_name: Eugen full_name: Dimant, Eugen last_name: Dimant - first_name: Tim full_name: Krieger, Tim last_name: Krieger - first_name: Margarete full_name: Redlin, Margarete id: '135' last_name: Redlin citation: ama: Dimant E, Krieger T, Redlin M. A Crook Is a Crook … But Is He Still a Crook Abroad? - On the Effect of Immigration on Destination-Country Corruption. Vol 2013-14. Paderborn University, CIE Center for International Economics; 2013. apa: Dimant, E., Krieger, T., & Redlin, M. (2013). A Crook is a Crook … But is He Still a Crook Abroad? - On the Effect of Immigration on Destination-Country Corruption (Vol. 2013–14). Paderborn University, CIE Center for International Economics. bibtex: '@book{Dimant_Krieger_Redlin_2013, series={Working Papers CIE}, title={A Crook is a Crook … But is He Still a Crook Abroad? - On the Effect of Immigration on Destination-Country Corruption}, volume={2013–14}, publisher={Paderborn University, CIE Center for International Economics}, author={Dimant, Eugen and Krieger, Tim and Redlin, Margarete}, year={2013}, collection={Working Papers CIE} }' chicago: Dimant, Eugen, Tim Krieger, and Margarete Redlin. A Crook Is a Crook … But Is He Still a Crook Abroad? - On the Effect of Immigration on Destination-Country Corruption. Vol. 2013–14. Working Papers CIE. Paderborn University, CIE Center for International Economics, 2013. ieee: E. Dimant, T. Krieger, and M. Redlin, A Crook is a Crook … But is He Still a Crook Abroad? - On the Effect of Immigration on Destination-Country Corruption, vol. 2013–14. Paderborn University, CIE Center for International Economics, 2013. mla: Dimant, Eugen, et al. A Crook Is a Crook … But Is He Still a Crook Abroad? - On the Effect of Immigration on Destination-Country Corruption. Vol. 2013–14, Paderborn University, CIE Center for International Economics, 2013. short: E. Dimant, T. Krieger, M. Redlin, A Crook Is a Crook … But Is He Still a Crook Abroad? - On the Effect of Immigration on Destination-Country Corruption, Paderborn University, CIE Center for International Economics, 2013. date_created: 2018-05-14T07:59:13Z date_updated: 2022-01-06T06:57:38Z department: - _id: '475' - _id: '200' - _id: '202' main_file_link: - open_access: '1' url: https://EconPapers.repec.org/RePEc:pdn:ciepap:71 oa: '1' publisher: Paderborn University, CIE Center for International Economics series_title: Working Papers CIE status: public title: A Crook is a Crook … But is He Still a Crook Abroad? - On the Effect of Immigration on Destination-Country Corruption type: working_paper user_id: '135' volume: 2013-14 year: '2013' ... --- _id: '2739' author: - first_name: Eugen full_name: Dimant, Eugen last_name: Dimant - first_name: 'Tim ' full_name: 'Krieger, Tim ' last_name: Krieger - first_name: Margarete full_name: Redlin, Margarete id: '135' last_name: Redlin citation: ama: Dimant E, Krieger T, Redlin M. A Crook Is a Crook ... but Is He Still a Crook Abroad? On the Effect of Immigration on Destination-Country Corruption. Vol 2013-03. Wilfried-Guth-Stiftungsprofessur für Ordnungs- und Wettbewerbspolitik, Universität Freiburg; 2013. apa: Dimant, E., Krieger, T., & Redlin, M. (2013). A crook is a crook ... but is he still a crook abroad? On the effect of immigration on destination-country corruption (Vol. 2013–03). Wilfried-Guth-Stiftungsprofessur für Ordnungs- und Wettbewerbspolitik, Universität Freiburg. bibtex: '@book{Dimant_Krieger_Redlin_2013, series={Discussion Paper Series,}, title={A crook is a crook ... but is he still a crook abroad? On the effect of immigration on destination-country corruption}, volume={2013–03}, publisher={Wilfried-Guth-Stiftungsprofessur für Ordnungs- und Wettbewerbspolitik, Universität Freiburg}, author={Dimant, Eugen and Krieger, Tim and Redlin, Margarete}, year={2013}, collection={Discussion Paper Series,} }' chicago: Dimant, Eugen, Tim Krieger, and Margarete Redlin. A Crook Is a Crook ... but Is He Still a Crook Abroad? On the Effect of Immigration on Destination-Country Corruption. Vol. 2013–03. Discussion Paper Series,. Wilfried-Guth-Stiftungsprofessur für Ordnungs- und Wettbewerbspolitik, Universität Freiburg, 2013. ieee: E. Dimant, T. Krieger, and M. Redlin, A crook is a crook ... but is he still a crook abroad? On the effect of immigration on destination-country corruption, vol. 2013–03. Wilfried-Guth-Stiftungsprofessur für Ordnungs- und Wettbewerbspolitik, Universität Freiburg, 2013. mla: Dimant, Eugen, et al. A Crook Is a Crook ... but Is He Still a Crook Abroad? On the Effect of Immigration on Destination-Country Corruption. Vol. 2013–03, Wilfried-Guth-Stiftungsprofessur für Ordnungs- und Wettbewerbspolitik, Universität Freiburg, 2013. short: E. Dimant, T. Krieger, M. Redlin, A Crook Is a Crook ... but Is He Still a Crook Abroad? On the Effect of Immigration on Destination-Country Corruption, Wilfried-Guth-Stiftungsprofessur für Ordnungs- und Wettbewerbspolitik, Universität Freiburg, 2013. date_created: 2018-05-14T08:38:49Z date_updated: 2022-01-06T06:57:38Z department: - _id: '475' - _id: '200' - _id: '202' main_file_link: - open_access: '1' url: http://hdl.handle.net/10419/87673 oa: '1' publisher: Wilfried-Guth-Stiftungsprofessur für Ordnungs- und Wettbewerbspolitik, Universität Freiburg series_title: Discussion Paper Series, status: public title: A crook is a crook ... but is he still a crook abroad? On the effect of immigration on destination-country corruption type: working_paper user_id: '135' volume: 2013-03 year: '2013' ... --- _id: '18476' abstract: - lang: eng text: We investigate the band dispersion and relevant electronic properties of rubrene single crystals within the GW approximation. Due to the self-energy correction, the dispersion of the highest occupied molecular orbital (HOMO) band increases by 0.10 eV compared to the dispersion of the Kohn-Sham eigenvalues within the generalized gradient approximation, and the effective hole mass consequently decreases. The resulting value of 0.90 times the electron rest mass along the Γ-Y direction in the Brillouin zone is closer to experimental measurements than that obtained from density-functional theory. The enhanced bandwidth is explained in terms of the intermolecular hybridization of the HOMO(Y) wave function along the stacking direction of the molecules. Overall, our results support the bandlike interpretation of charge-carrier transport in rubrene. article_number: '115438' article_type: original author: - first_name: Susumu full_name: Yanagisawa, Susumu last_name: Yanagisawa - first_name: Yoshitada full_name: Morikawa, Yoshitada last_name: Morikawa - first_name: Arno full_name: Schindlmayr, Arno id: '458' last_name: Schindlmayr orcid: 0000-0002-4855-071X citation: ama: 'Yanagisawa S, Morikawa Y, Schindlmayr A. HOMO band dispersion of crystalline rubrene: Effects of self-energy corrections within the GW approximation. Physical Review B. 2013;88(11). doi:10.1103/PhysRevB.88.115438' apa: 'Yanagisawa, S., Morikawa, Y., & Schindlmayr, A. (2013). HOMO band dispersion of crystalline rubrene: Effects of self-energy corrections within the GW approximation. Physical Review B, 88(11). https://doi.org/10.1103/PhysRevB.88.115438' bibtex: '@article{Yanagisawa_Morikawa_Schindlmayr_2013, title={HOMO band dispersion of crystalline rubrene: Effects of self-energy corrections within the GW approximation}, volume={88}, DOI={10.1103/PhysRevB.88.115438}, number={11115438}, journal={Physical Review B}, publisher={American Physical Society}, author={Yanagisawa, Susumu and Morikawa, Yoshitada and Schindlmayr, Arno}, year={2013} }' chicago: 'Yanagisawa, Susumu, Yoshitada Morikawa, and Arno Schindlmayr. “HOMO Band Dispersion of Crystalline Rubrene: Effects of Self-Energy Corrections within the GW Approximation.” Physical Review B 88, no. 11 (2013). https://doi.org/10.1103/PhysRevB.88.115438.' ieee: 'S. Yanagisawa, Y. Morikawa, and A. Schindlmayr, “HOMO band dispersion of crystalline rubrene: Effects of self-energy corrections within the GW approximation,” Physical Review B, vol. 88, no. 11, 2013.' mla: 'Yanagisawa, Susumu, et al. “HOMO Band Dispersion of Crystalline Rubrene: Effects of Self-Energy Corrections within the GW Approximation.” Physical Review B, vol. 88, no. 11, 115438, American Physical Society, 2013, doi:10.1103/PhysRevB.88.115438.' short: S. Yanagisawa, Y. Morikawa, A. Schindlmayr, Physical Review B 88 (2013). date_created: 2020-08-27T21:59:44Z date_updated: 2022-01-06T06:53:36Z ddc: - '530' department: - _id: '296' doi: 10.1103/PhysRevB.88.115438 external_id: isi: - '000325175600010' file: - access_level: open_access content_type: application/pdf creator: schindlm date_created: 2020-08-27T22:01:50Z date_updated: 2020-08-30T14:58:43Z description: © 2013 American Physical Society file_id: '18477' file_name: PhysRevB.88.115438.pdf file_size: 4438475 relation: main_file title: 'HOMO band dispersion of crystalline rubrene: Effects of self-energy corrections within the GW approximation' file_date_updated: 2020-08-30T14:58:43Z has_accepted_license: '1' intvolume: ' 88' isi: '1' issue: '11' language: - iso: eng oa: '1' publication: Physical Review B publication_identifier: eissn: - 1550-235X issn: - 1098-0121 publication_status: published publisher: American Physical Society quality_controlled: '1' status: public title: 'HOMO band dispersion of crystalline rubrene: Effects of self-energy corrections within the GW approximation' type: journal_article user_id: '458' volume: 88 year: '2013' ... --- _id: '5682' author: - first_name: Hermann full_name: de Meer, Hermann last_name: de Meer - first_name: Michael full_name: Diener, Michael last_name: Diener - first_name: Ralph full_name: Herkenhöner, Ralph last_name: Herkenhöner - first_name: Markus full_name: Kucera, Markus last_name: Kucera - first_name: Michael full_name: Niedermeier, Michael last_name: Niedermeier - first_name: Andreas full_name: Reisser, Andreas last_name: Reisser - first_name: Guido full_name: Schryen, Guido id: '72850' last_name: Schryen - first_name: Michael full_name: Vetter, Michael last_name: Vetter - first_name: Thomas full_name: Waas, Thomas last_name: Waas - first_name: Emrah full_name: Yasasin, Emrah last_name: Yasasin citation: ama: de Meer H, Diener M, Herkenhöner R, et al. Sicherheitsherausforderungen in hochverteilten Systemen. PIK - Praxis der Informationsverarbeitung und Kommunikation. 2013;36(3):153-159. apa: de Meer, H., Diener, M., Herkenhöner, R., Kucera, M., Niedermeier, M., Reisser, A., … Yasasin, E. (2013). Sicherheitsherausforderungen in hochverteilten Systemen. PIK - Praxis Der Informationsverarbeitung Und Kommunikation, 36(3), 153–159. bibtex: '@article{de Meer_Diener_Herkenhöner_Kucera_Niedermeier_Reisser_Schryen_Vetter_Waas_Yasasin_2013, title={Sicherheitsherausforderungen in hochverteilten Systemen}, volume={36}, number={3}, journal={PIK - Praxis der Informationsverarbeitung und Kommunikation}, publisher={de Gruyter}, author={de Meer, Hermann and Diener, Michael and Herkenhöner, Ralph and Kucera, Markus and Niedermeier, Michael and Reisser, Andreas and Schryen, Guido and Vetter, Michael and Waas, Thomas and Yasasin, Emrah}, year={2013}, pages={153–159} }' chicago: 'Meer, Hermann de, Michael Diener, Ralph Herkenhöner, Markus Kucera, Michael Niedermeier, Andreas Reisser, Guido Schryen, Michael Vetter, Thomas Waas, and Emrah Yasasin. “Sicherheitsherausforderungen in Hochverteilten Systemen.” PIK - Praxis Der Informationsverarbeitung Und Kommunikation 36, no. 3 (2013): 153–59.' ieee: H. de Meer et al., “Sicherheitsherausforderungen in hochverteilten Systemen,” PIK - Praxis der Informationsverarbeitung und Kommunikation, vol. 36, no. 3, pp. 153–159, 2013. mla: de Meer, Hermann, et al. “Sicherheitsherausforderungen in Hochverteilten Systemen.” PIK - Praxis Der Informationsverarbeitung Und Kommunikation, vol. 36, no. 3, de Gruyter, 2013, pp. 153–59. short: H. de Meer, M. Diener, R. Herkenhöner, M. Kucera, M. Niedermeier, A. Reisser, G. Schryen, M. Vetter, T. Waas, E. Yasasin, PIK - Praxis Der Informationsverarbeitung Und Kommunikation 36 (2013) 153–159. date_created: 2018-11-14T15:43:13Z date_updated: 2022-01-06T07:02:32Z ddc: - '000' department: - _id: '277' extern: '1' file: - access_level: open_access content_type: application/pdf creator: hsiemes date_created: 2018-12-07T12:01:06Z date_updated: 2018-12-13T15:12:17Z file_id: '6050' file_name: pik-2013-0015.pdf file_size: 203924 relation: main_file file_date_updated: 2018-12-13T15:12:17Z has_accepted_license: '1' intvolume: ' 36' issue: '3' language: - iso: eng oa: '1' page: 153-159 publication: PIK - Praxis der Informationsverarbeitung und Kommunikation publisher: de Gruyter status: public title: Sicherheitsherausforderungen in hochverteilten Systemen type: journal_article user_id: '61579' volume: 36 year: '2013' ... --- _id: '6166' author: - first_name: Felix full_name: Wex, Felix last_name: Wex - first_name: Guido full_name: Schryen, Guido id: '72850' last_name: Schryen citation: ama: Wex F, Schryen G. Effektiver Einsatz von Rettungskräften bei Naturkatastrophen - Modelle und Verfahren zur Entscheidungsunterstützung. Blick in die Wissenschaft. 2013;(28):27-32. apa: Wex, F., & Schryen, G. (2013). Effektiver Einsatz von Rettungskräften bei Naturkatastrophen - Modelle und Verfahren zur Entscheidungsunterstützung. Blick in Die Wissenschaft, (28), 27–32. bibtex: '@article{Wex_Schryen_2013, title={Effektiver Einsatz von Rettungskräften bei Naturkatastrophen - Modelle und Verfahren zur Entscheidungsunterstützung}, number={28}, journal={Blick in die Wissenschaft}, author={Wex, Felix and Schryen, Guido}, year={2013}, pages={27–32} }' chicago: 'Wex, Felix, and Guido Schryen. “Effektiver Einsatz von Rettungskräften Bei Naturkatastrophen - Modelle Und Verfahren Zur Entscheidungsunterstützung.” Blick in Die Wissenschaft, no. 28 (2013): 27–32.' ieee: F. Wex and G. Schryen, “Effektiver Einsatz von Rettungskräften bei Naturkatastrophen - Modelle und Verfahren zur Entscheidungsunterstützung,” Blick in die Wissenschaft, no. 28, pp. 27–32, 2013. mla: Wex, Felix, and Guido Schryen. “Effektiver Einsatz von Rettungskräften Bei Naturkatastrophen - Modelle Und Verfahren Zur Entscheidungsunterstützung.” Blick in Die Wissenschaft, no. 28, 2013, pp. 27–32. short: F. Wex, G. Schryen, Blick in Die Wissenschaft (2013) 27–32. date_created: 2018-12-11T13:43:18Z date_updated: 2022-01-06T07:02:55Z ddc: - '000' department: - _id: '277' extern: '1' file: - access_level: open_access content_type: application/pdf creator: hsiemes date_created: 2018-12-11T13:44:17Z date_updated: 2018-12-13T15:20:50Z file_id: '6167' file_name: Schreyen_Wex.pdf file_size: 835076 relation: main_file file_date_updated: 2018-12-13T15:20:50Z has_accepted_license: '1' issue: '28' language: - iso: eng oa: '1' page: 27-32 publication: Blick in die Wissenschaft status: public title: Effektiver Einsatz von Rettungskräften bei Naturkatastrophen - Modelle und Verfahren zur Entscheidungsunterstützung type: journal_article user_id: '61579' year: '2013' ... --- _id: '487' author: - first_name: Jan full_name: Bobolz, Jan id: '27207' last_name: Bobolz citation: ama: Bobolz J. Security Proofs for Pairing-Based Cryptography in the Generic Group Model. Universität Paderborn; 2013. apa: Bobolz, J. (2013). Security Proofs for Pairing-Based Cryptography in the Generic Group Model. Universität Paderborn. bibtex: '@book{Bobolz_2013, title={Security Proofs for Pairing-Based Cryptography in the Generic Group Model}, publisher={Universität Paderborn}, author={Bobolz, Jan}, year={2013} }' chicago: Bobolz, Jan. Security Proofs for Pairing-Based Cryptography in the Generic Group Model. Universität Paderborn, 2013. ieee: J. Bobolz, Security Proofs for Pairing-Based Cryptography in the Generic Group Model. Universität Paderborn, 2013. mla: Bobolz, Jan. Security Proofs for Pairing-Based Cryptography in the Generic Group Model. Universität Paderborn, 2013. short: J. Bobolz, Security Proofs for Pairing-Based Cryptography in the Generic Group Model, Universität Paderborn, 2013. date_created: 2017-10-17T12:42:27Z date_updated: 2022-01-06T07:01:28Z ddc: - '000' department: - _id: '64' file: - access_level: open_access content_type: application/pdf creator: jbobolz date_created: 2018-04-13T11:42:08Z date_updated: 2018-06-29T09:56:54Z file_id: '2346' file_name: thesis_jbobolz_final.pdf file_size: 874286 relation: main_file file_date_updated: 2018-06-29T09:56:54Z has_accepted_license: '1' oa: '1' project: - _id: '1' name: SFB 901 - _id: '4' name: SFB 901 - Project Area C - _id: '13' name: SFB 901 - Subproject C1 publisher: Universität Paderborn status: public title: Security Proofs for Pairing-Based Cryptography in the Generic Group Model type: bachelorsthesis urn: '4875' user_id: '27207' year: '2013' ... --- _id: '3963' abstract: - lang: eng text: "Whispering gallery modes (WGMs) were observed in 60 nm thin cubic AlN microdisk resonators containing a single layer of non-polar cubic GaN quantum dots. Freestanding microdisks were patterned by means of electron beam lithography and a two step reactive ion etching process. Micro-photoluminescence spectroscopy investigations were performed for optical characterization. We analyzed the mode spacing for disk diameters ranging from 2-4 lm. Numerical investigations using three dimensional finite difference time domain calculations were in good agreement\r\nwith the experimental data. Whispering gallery modes of the radial orders 1 and 2 were identified by means of simulated mode field distributions." article_type: original author: - first_name: M. full_name: Bürger, M. last_name: Bürger - first_name: M. full_name: Ruth, M. last_name: Ruth - first_name: S. full_name: Declair, S. last_name: Declair - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 - first_name: Cedrik full_name: Meier, Cedrik id: '20798' last_name: Meier orcid: https://orcid.org/0000-0002-3787-3572 - first_name: Donat Josef full_name: As, Donat Josef id: '14' last_name: As orcid: 0000-0003-1121-3565 citation: ama: Bürger M, Ruth M, Declair S, Förstner J, Meier C, As DJ. Whispering gallery modes in zinc-blende AlN microdisks containing non-polar GaN quantum dots. Applied Physics Letters. 2013;102(8):081105. doi:10.1063/1.4793653 apa: Bürger, M., Ruth, M., Declair, S., Förstner, J., Meier, C., & As, D. J. (2013). Whispering gallery modes in zinc-blende AlN microdisks containing non-polar GaN quantum dots. Applied Physics Letters, 102(8), 081105. https://doi.org/10.1063/1.4793653 bibtex: '@article{Bürger_Ruth_Declair_Förstner_Meier_As_2013, title={Whispering gallery modes in zinc-blende AlN microdisks containing non-polar GaN quantum dots}, volume={102}, DOI={10.1063/1.4793653}, number={8}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Bürger, M. and Ruth, M. and Declair, S. and Förstner, Jens and Meier, Cedrik and As, Donat Josef}, year={2013}, pages={081105} }' chicago: 'Bürger, M., M. Ruth, S. Declair, Jens Förstner, Cedrik Meier, and Donat Josef As. “Whispering Gallery Modes in Zinc-Blende AlN Microdisks Containing Non-Polar GaN Quantum Dots.” Applied Physics Letters 102, no. 8 (2013): 081105. https://doi.org/10.1063/1.4793653.' ieee: M. Bürger, M. Ruth, S. Declair, J. Förstner, C. Meier, and D. J. As, “Whispering gallery modes in zinc-blende AlN microdisks containing non-polar GaN quantum dots,” Applied Physics Letters, vol. 102, no. 8, p. 081105, 2013. mla: Bürger, M., et al. “Whispering Gallery Modes in Zinc-Blende AlN Microdisks Containing Non-Polar GaN Quantum Dots.” Applied Physics Letters, vol. 102, no. 8, AIP Publishing, 2013, p. 081105, doi:10.1063/1.4793653. short: M. Bürger, M. Ruth, S. Declair, J. Förstner, C. Meier, D.J. As, Applied Physics Letters 102 (2013) 081105. date_created: 2018-08-21T07:43:22Z date_updated: 2022-01-06T07:00:01Z ddc: - '530' department: - _id: '15' - _id: '287' - _id: '284' - _id: '230' - _id: '35' doi: 10.1063/1.4793653 file: - access_level: open_access content_type: application/pdf creator: hclaudia date_created: 2018-08-21T07:47:02Z date_updated: 2018-09-04T20:08:52Z file_id: '3964' file_name: 2013-02 Bürger,Ruth,Declair,Förstner,Meier,As_Whispering gallery modes in zinc-blende AlN microdisks containing non-polar GaN quantum dots.pdf file_size: 935911 relation: main_file file_date_updated: 2018-09-04T20:08:52Z has_accepted_license: '1' intvolume: ' 102' issue: '8' keyword: - tet_topic_qd - tet_topic_microdisk language: - iso: eng oa: '1' page: '081105' publication: Applied Physics Letters publication_identifier: issn: - 0003-6951 - 1077-3118 publication_status: published publisher: AIP Publishing status: public title: Whispering gallery modes in zinc-blende AlN microdisks containing non-polar GaN quantum dots type: journal_article urn: '39635' user_id: '14' volume: 102 year: '2013' ... --- _id: '538' abstract: - lang: eng text: 'We present a new technique to realize attribute-based encryption (ABE) schemes secure in the standard model against chosen-ciphertext attacks (CCA-secure). Our approach is to extend certain concrete chosen-plaintext secure (CPA-secure) ABE schemes to achieve more efficient constructions than the known generic constructions of CCA-secure ABE schemes. We restrict ourselves to the construction of attribute-based key encapsulation mechanisms (KEMs) and present two concrete CCA-secure schemes: a key-policy attribute-based KEM that is based on Goyal''s key-policy ABE and a ciphertext-policy attribute-based KEM that is based on Waters'' ciphertext-policy ABE. To achieve our goals, we use an appropriate hash function and need to extend the public parameters and the ciphertexts of the underlying CPA-secure encryption schemes only by a single group element. Moreover, we use the same hardness assumptions as the underlying CPA-secure encryption schemes.' author: - first_name: Johannes full_name: Blömer, Johannes id: '23' last_name: Blömer - first_name: Gennadij full_name: Liske, Gennadij last_name: Liske citation: ama: Blömer J, Liske G. Direct Chosen-Ciphertext Secure Attribute-Based Key Encapsulations without Random Oracles. 2013. apa: Blömer, J., & Liske, G. (2013). Direct Chosen-Ciphertext Secure Attribute-Based Key Encapsulations without Random Oracles. Universität Paderborn. bibtex: '@article{Blömer_Liske_2013, title={Direct Chosen-Ciphertext Secure Attribute-Based Key Encapsulations without Random Oracles}, publisher={Universität Paderborn}, author={Blömer, Johannes and Liske, Gennadij}, year={2013} }' chicago: Blömer, Johannes, and Gennadij Liske. “Direct Chosen-Ciphertext Secure Attribute-Based Key Encapsulations without Random Oracles.” Universität Paderborn, 2013. ieee: J. Blömer and G. Liske, “Direct Chosen-Ciphertext Secure Attribute-Based Key Encapsulations without Random Oracles.” Universität Paderborn, 2013. mla: Blömer, Johannes, and Gennadij Liske. Direct Chosen-Ciphertext Secure Attribute-Based Key Encapsulations without Random Oracles. Universität Paderborn, 2013. short: J. Blömer, G. Liske, (2013). date_created: 2017-10-17T12:42:37Z date_updated: 2022-01-06T07:01:51Z ddc: - '040' department: - _id: '64' file: - access_level: closed content_type: application/pdf creator: florida date_created: 2018-03-15T10:35:04Z date_updated: 2018-03-15T10:35:04Z file_id: '1292' file_name: 538-AB-KEM_01.pdf file_size: 389797 relation: main_file success: 1 file_date_updated: 2018-03-15T10:35:04Z has_accepted_license: '1' main_file_link: - open_access: '1' url: https://eprint.iacr.org/2013/646 oa: '1' project: - _id: '1' name: SFB 901 - _id: '13' name: SFB 901 - Subprojekt C1 - _id: '4' name: SFB 901 - Project Area C - _id: '43' name: Securing the Financial Cloud publisher: Universität Paderborn status: public title: Direct Chosen-Ciphertext Secure Attribute-Based Key Encapsulations without Random Oracles type: preprint user_id: '25078' year: '2013' ... --- _id: '5575' author: - first_name: Felix full_name: Wex, Felix last_name: Wex - first_name: Guido full_name: Schryen, Guido id: '72850' last_name: Schryen - first_name: Dirk full_name: Neumann, Dirk last_name: Neumann citation: ama: Wex F, Schryen G, Neumann D. Assignments of Collaborative Rescue Units during Emergency Response. International Journal of Information Systems for Crisis Response and Management. 2013;5(4):63-80. apa: Wex, F., Schryen, G., & Neumann, D. (2013). Assignments of Collaborative Rescue Units during Emergency Response. International Journal of Information Systems for Crisis Response and Management, 5(4), 63–80. bibtex: '@article{Wex_Schryen_Neumann_2013, title={Assignments of Collaborative Rescue Units during Emergency Response}, volume={5}, number={4}, journal={International Journal of Information Systems for Crisis Response and Management}, publisher={IGI Publ.}, author={Wex, Felix and Schryen, Guido and Neumann, Dirk}, year={2013}, pages={63–80} }' chicago: 'Wex, Felix, Guido Schryen, and Dirk Neumann. “Assignments of Collaborative Rescue Units during Emergency Response.” International Journal of Information Systems for Crisis Response and Management 5, no. 4 (2013): 63–80.' ieee: F. Wex, G. Schryen, and D. Neumann, “Assignments of Collaborative Rescue Units during Emergency Response,” International Journal of Information Systems for Crisis Response and Management, vol. 5, no. 4, pp. 63–80, 2013. mla: Wex, Felix, et al. “Assignments of Collaborative Rescue Units during Emergency Response.” International Journal of Information Systems for Crisis Response and Management, vol. 5, no. 4, IGI Publ., 2013, pp. 63–80. short: F. Wex, G. Schryen, D. Neumann, International Journal of Information Systems for Crisis Response and Management 5 (2013) 63–80. date_created: 2018-11-14T11:14:07Z date_updated: 2022-01-06T07:02:00Z ddc: - '000' department: - _id: '277' extern: '1' file: - access_level: open_access content_type: application/pdf creator: hsiemes date_created: 2018-12-11T14:25:51Z date_updated: 2018-12-13T15:13:02Z file_id: '6168' file_name: ERS_IJISCRAM2013_Revision 1.pdf file_size: 493113 relation: main_file file_date_updated: 2018-12-13T15:13:02Z has_accepted_license: '1' intvolume: ' 5' issue: '4' language: - iso: eng oa: '1' page: 63-80 publication: International Journal of Information Systems for Crisis Response and Management publisher: IGI Publ. status: public title: Assignments of Collaborative Rescue Units during Emergency Response type: journal_article user_id: '61579' volume: 5 year: '2013' ... --- _id: '5576' author: - first_name: Felix full_name: Wex, Felix last_name: Wex - first_name: Guido full_name: Schryen, Guido id: '72850' last_name: Schryen - first_name: Dirk full_name: Neumann, Dirk last_name: Neumann citation: ama: 'Wex F, Schryen G, Neumann D. Decision Modeling for Assignments of Collaborative Rescue Units during Emergency Response. In: Proceedings of the 46th Hawaii International Conference on System Science. ; 2013.' apa: Wex, F., Schryen, G., & Neumann, D. (2013). Decision Modeling for Assignments of Collaborative Rescue Units during Emergency Response. In Proceedings of the 46th Hawaii International Conference on System Science. bibtex: '@inproceedings{Wex_Schryen_Neumann_2013, title={Decision Modeling for Assignments of Collaborative Rescue Units during Emergency Response}, booktitle={Proceedings of the 46th Hawaii International Conference on System Science}, author={Wex, Felix and Schryen, Guido and Neumann, Dirk}, year={2013} }' chicago: Wex, Felix, Guido Schryen, and Dirk Neumann. “Decision Modeling for Assignments of Collaborative Rescue Units during Emergency Response.” In Proceedings of the 46th Hawaii International Conference on System Science, 2013. ieee: F. Wex, G. Schryen, and D. Neumann, “Decision Modeling for Assignments of Collaborative Rescue Units during Emergency Response,” in Proceedings of the 46th Hawaii International Conference on System Science, 2013. mla: Wex, Felix, et al. “Decision Modeling for Assignments of Collaborative Rescue Units during Emergency Response.” Proceedings of the 46th Hawaii International Conference on System Science, 2013. short: 'F. Wex, G. Schryen, D. Neumann, in: Proceedings of the 46th Hawaii International Conference on System Science, 2013.' date_created: 2018-11-14T11:14:56Z date_updated: 2022-01-06T07:02:00Z ddc: - '000' department: - _id: '277' extern: '1' file: - access_level: open_access content_type: application/pdf creator: hsiemes date_created: 2018-12-07T12:00:30Z date_updated: 2018-12-13T15:12:05Z file_id: '6049' file_name: ERS_HICSS2013_revised_v11-ACM [number].pdf file_size: 394101 relation: main_file file_date_updated: 2018-12-13T15:12:05Z has_accepted_license: '1' language: - iso: eng oa: '1' publication: Proceedings of the 46th Hawaii International Conference on System Science status: public title: Decision Modeling for Assignments of Collaborative Rescue Units during Emergency Response type: conference user_id: '61579' year: '2013' ... --- _id: '5637' author: - first_name: Guido full_name: Schryen, Guido id: '72850' last_name: Schryen citation: ama: 'Schryen G. Revisiting IS Business Value Research: What we already know, what we still need to know, and how we can get there. European Journal of Information Systems (EJIS). 2013;22(2):139-169.' apa: 'Schryen, G. (2013). Revisiting IS Business Value Research: What we already know, what we still need to know, and how we can get there. European Journal of Information Systems (EJIS), 22(2), 139–169.' bibtex: '@article{Schryen_2013, title={Revisiting IS Business Value Research: What we already know, what we still need to know, and how we can get there}, volume={22}, number={2}, journal={European Journal of Information Systems (EJIS)}, author={Schryen, Guido}, year={2013}, pages={139–169} }' chicago: 'Schryen, Guido. “Revisiting IS Business Value Research: What We Already Know, What We Still Need to Know, and How We Can Get There.” European Journal of Information Systems (EJIS) 22, no. 2 (2013): 139–69.' ieee: 'G. Schryen, “Revisiting IS Business Value Research: What we already know, what we still need to know, and how we can get there,” European Journal of Information Systems (EJIS), vol. 22, no. 2, pp. 139–169, 2013.' mla: 'Schryen, Guido. “Revisiting IS Business Value Research: What We Already Know, What We Still Need to Know, and How We Can Get There.” European Journal of Information Systems (EJIS), vol. 22, no. 2, 2013, pp. 139–69.' short: G. Schryen, European Journal of Information Systems (EJIS) 22 (2013) 139–169. date_created: 2018-11-14T14:31:37Z date_updated: 2022-01-06T07:02:16Z ddc: - '000' department: - _id: '277' extern: '1' file: - access_level: open_access content_type: application/pdf creator: hsiemes date_created: 2018-12-07T11:59:54Z date_updated: 2018-12-13T15:11:53Z file_id: '6048' file_name: EJIS-PAPER.pdf file_size: 792102 relation: main_file file_date_updated: 2018-12-13T15:11:53Z has_accepted_license: '1' intvolume: ' 22' issue: '2' language: - iso: eng oa: '1' page: 139-169 publication: European Journal of Information Systems (EJIS) status: public title: 'Revisiting IS Business Value Research: What we already know, what we still need to know, and how we can get there' type: journal_article user_id: '61579' volume: 22 year: '2013' ... --- _id: '11740' abstract: - lang: eng text: In this contribution we derive the Maximum A-Posteriori (MAP) estimates of the parameters of a Gaussian Mixture Model (GMM) in the presence of noisy observations. We assume the distortion to be white Gaussian noise of known mean and variance. An approximate conjugate prior of the GMM parameters is derived allowing for a computationally efficient implementation in a sequential estimation framework. Simulations on artificially generated data demonstrate the superiority of the proposed method compared to the Maximum Likelihood technique and to the ordinary MAP approach, whose estimates are corrected by the known statistics of the distortion in a straightforward manner. author: - first_name: Aleksej full_name: Chinaev, Aleksej last_name: Chinaev - first_name: Reinhold full_name: Haeb-Umbach, Reinhold id: '242' last_name: Haeb-Umbach citation: ama: 'Chinaev A, Haeb-Umbach R. MAP-based Estimation of the Parameters of a Gaussian Mixture Model in the Presence of Noisy Observations. In: 38th International Conference on Acoustics, Speech and Signal Processing (ICASSP 2013). ; 2013:3352-3356. doi:10.1109/ICASSP.2013.6638279' apa: Chinaev, A., & Haeb-Umbach, R. (2013). MAP-based Estimation of the Parameters of a Gaussian Mixture Model in the Presence of Noisy Observations. In 38th International Conference on Acoustics, Speech and Signal Processing (ICASSP 2013) (pp. 3352–3356). https://doi.org/10.1109/ICASSP.2013.6638279 bibtex: '@inproceedings{Chinaev_Haeb-Umbach_2013, title={MAP-based Estimation of the Parameters of a Gaussian Mixture Model in the Presence of Noisy Observations}, DOI={10.1109/ICASSP.2013.6638279}, booktitle={38th International Conference on Acoustics, Speech and Signal Processing (ICASSP 2013)}, author={Chinaev, Aleksej and Haeb-Umbach, Reinhold}, year={2013}, pages={3352–3356} }' chicago: Chinaev, Aleksej, and Reinhold Haeb-Umbach. “MAP-Based Estimation of the Parameters of a Gaussian Mixture Model in the Presence of Noisy Observations.” In 38th International Conference on Acoustics, Speech and Signal Processing (ICASSP 2013), 3352–56, 2013. https://doi.org/10.1109/ICASSP.2013.6638279. ieee: A. Chinaev and R. Haeb-Umbach, “MAP-based Estimation of the Parameters of a Gaussian Mixture Model in the Presence of Noisy Observations,” in 38th International Conference on Acoustics, Speech and Signal Processing (ICASSP 2013), 2013, pp. 3352–3356. mla: Chinaev, Aleksej, and Reinhold Haeb-Umbach. “MAP-Based Estimation of the Parameters of a Gaussian Mixture Model in the Presence of Noisy Observations.” 38th International Conference on Acoustics, Speech and Signal Processing (ICASSP 2013), 2013, pp. 3352–56, doi:10.1109/ICASSP.2013.6638279. short: 'A. Chinaev, R. Haeb-Umbach, in: 38th International Conference on Acoustics, Speech and Signal Processing (ICASSP 2013), 2013, pp. 3352–3356.' date_created: 2019-07-12T05:27:20Z date_updated: 2022-01-06T06:51:08Z department: - _id: '54' doi: 10.1109/ICASSP.2013.6638279 keyword: - Gaussian noise - maximum likelihood estimation - parameter estimation - GMM parameter - Gaussian mixture model - MAP estimation - Map-based estimation - maximum a-posteriori estimation - maximum likelihood technique - noisy observation - sequential estimation framework - white Gaussian noise - Additive noise - Gaussian mixture model - Maximum likelihood estimation - Noise measurement - Gaussian mixture model - Maximum a posteriori estimation - Maximum likelihood estimation language: - iso: eng main_file_link: - open_access: '1' url: https://groups.uni-paderborn.de/nt/pubs/2013/ChHa13.pdf oa: '1' page: 3352-3356 publication: 38th International Conference on Acoustics, Speech and Signal Processing (ICASSP 2013) publication_identifier: issn: - 1520-6149 related_material: link: - description: Poster relation: supplementary_material url: https://groups.uni-paderborn.de/nt/pubs/2013/ChHa13_Poster.pdf status: public title: MAP-based Estimation of the Parameters of a Gaussian Mixture Model in the Presence of Noisy Observations type: conference user_id: '44006' year: '2013' ... --- _id: '11742' abstract: - lang: eng text: In this paper we present an improved version of the recently proposed Maximum A-Posteriori (MAP) based noise power spectral density estimator. An empirical bias compensation and bandwidth adjustment reduce bias and variance of the noise variance estimates. The main advantage of the MAP-based postprocessor is its low estimation variance. The estimator is employed in the second stage of a two-stage single-channel speech enhancement system, where eight different state-of-the-art noise tracking algorithms were tested in the first stage. While the postprocessor hardly affects the results in stationary noise scenarios, it becomes the more effective the more nonstationary the noise is. The proposed postprocessor was able to improve all systems in babble noise w.r.t. the perceptual evaluation of speech quality performance. author: - first_name: Aleksej full_name: Chinaev, Aleksej last_name: Chinaev - first_name: Reinhold full_name: Haeb-Umbach, Reinhold id: '242' last_name: Haeb-Umbach - first_name: Jalal full_name: Taghia, Jalal last_name: Taghia - first_name: Rainer full_name: Martin, Rainer last_name: Martin citation: ama: 'Chinaev A, Haeb-Umbach R, Taghia J, Martin R. Improved Single-Channel Nonstationary Noise Tracking by an Optimized MAP-based Postprocessor. In: 38th International Conference on Acoustics, Speech and Signal Processing (ICASSP 2013). ; 2013:7477-7481. doi:10.1109/ICASSP.2013.6639116' apa: Chinaev, A., Haeb-Umbach, R., Taghia, J., & Martin, R. (2013). Improved Single-Channel Nonstationary Noise Tracking by an Optimized MAP-based Postprocessor. In 38th International Conference on Acoustics, Speech and Signal Processing (ICASSP 2013) (pp. 7477–7481). https://doi.org/10.1109/ICASSP.2013.6639116 bibtex: '@inproceedings{Chinaev_Haeb-Umbach_Taghia_Martin_2013, title={Improved Single-Channel Nonstationary Noise Tracking by an Optimized MAP-based Postprocessor}, DOI={10.1109/ICASSP.2013.6639116}, booktitle={38th International Conference on Acoustics, Speech and Signal Processing (ICASSP 2013)}, author={Chinaev, Aleksej and Haeb-Umbach, Reinhold and Taghia, Jalal and Martin, Rainer}, year={2013}, pages={7477–7481} }' chicago: Chinaev, Aleksej, Reinhold Haeb-Umbach, Jalal Taghia, and Rainer Martin. “Improved Single-Channel Nonstationary Noise Tracking by an Optimized MAP-Based Postprocessor.” In 38th International Conference on Acoustics, Speech and Signal Processing (ICASSP 2013), 7477–81, 2013. https://doi.org/10.1109/ICASSP.2013.6639116. ieee: A. Chinaev, R. Haeb-Umbach, J. Taghia, and R. Martin, “Improved Single-Channel Nonstationary Noise Tracking by an Optimized MAP-based Postprocessor,” in 38th International Conference on Acoustics, Speech and Signal Processing (ICASSP 2013), 2013, pp. 7477–7481. mla: Chinaev, Aleksej, et al. “Improved Single-Channel Nonstationary Noise Tracking by an Optimized MAP-Based Postprocessor.” 38th International Conference on Acoustics, Speech and Signal Processing (ICASSP 2013), 2013, pp. 7477–81, doi:10.1109/ICASSP.2013.6639116. short: 'A. Chinaev, R. Haeb-Umbach, J. Taghia, R. Martin, in: 38th International Conference on Acoustics, Speech and Signal Processing (ICASSP 2013), 2013, pp. 7477–7481.' date_created: 2019-07-12T05:27:23Z date_updated: 2022-01-06T06:51:08Z department: - _id: '54' doi: 10.1109/ICASSP.2013.6639116 language: - iso: eng main_file_link: - open_access: '1' url: https://groups.uni-paderborn.de/nt/pubs/2013/ChHaTaRa13.pdf oa: '1' page: 7477-7481 publication: 38th International Conference on Acoustics, Speech and Signal Processing (ICASSP 2013) publication_identifier: issn: - 1520-6149 related_material: link: - description: Poster relation: supplementary_material url: https://groups.uni-paderborn.de/nt/pubs/2013/ChHaTaRa13_Poster.pdf status: public title: Improved Single-Channel Nonstationary Noise Tracking by an Optimized MAP-based Postprocessor type: conference user_id: '44006' year: '2013' ... --- _id: '11762' abstract: - lang: eng text: Among the different configurations of multi-microphone systems, e.g., in applications of speech dereverberation or denoising, we consider the case without a priori information of the microphone-array geometry. This naturally invokes explicit or implicit identification of source-receiver transfer functions as an indirect description of the microphone-array configuration. However, this blind channel identification (BCI) has been difficult due to the lack of unique identifiability in the presence of observation noise or near-common channel zeros. In this paper, we study the implicit BCI performance of blind signal enhancement techniques such as the adaptive principal component analysis (PCA) or the iterative blind equalization and channel identification (BENCH). To this end, we make use of a recently proposed metric, the normalized filter-projection misalignment (NFPM), which is tailored for BCI evaluation in ill-conditioned (e.g., noisy) scenarios. The resulting understanding of implicit BCI performance can help to judge the behavior of multi-microphone speech enhancement systems and the suitability of implicit BCI to serve channel-based (i.e., channel-informed) enhancement. author: - first_name: Gerald full_name: Enzner, Gerald last_name: Enzner - first_name: Dominic full_name: Schmid, Dominic last_name: Schmid - first_name: Reinhold full_name: Haeb-Umbach, Reinhold id: '242' last_name: Haeb-Umbach citation: ama: 'Enzner G, Schmid D, Haeb-Umbach R. On the Acoustic Channel Identification in Multi-Microphone Systems via Adaptive Blind Signal Enhancement Techniques. In: 21th European Signal Processing Conference (EUSIPCO 2013). ; 2013.' apa: Enzner, G., Schmid, D., & Haeb-Umbach, R. (2013). On the Acoustic Channel Identification in Multi-Microphone Systems via Adaptive Blind Signal Enhancement Techniques. In 21th European Signal Processing Conference (EUSIPCO 2013). bibtex: '@inproceedings{Enzner_Schmid_Haeb-Umbach_2013, title={On the Acoustic Channel Identification in Multi-Microphone Systems via Adaptive Blind Signal Enhancement Techniques}, booktitle={21th European Signal Processing Conference (EUSIPCO 2013)}, author={Enzner, Gerald and Schmid, Dominic and Haeb-Umbach, Reinhold}, year={2013} }' chicago: Enzner, Gerald, Dominic Schmid, and Reinhold Haeb-Umbach. “On the Acoustic Channel Identification in Multi-Microphone Systems via Adaptive Blind Signal Enhancement Techniques.” In 21th European Signal Processing Conference (EUSIPCO 2013), 2013. ieee: G. Enzner, D. Schmid, and R. Haeb-Umbach, “On the Acoustic Channel Identification in Multi-Microphone Systems via Adaptive Blind Signal Enhancement Techniques,” in 21th European Signal Processing Conference (EUSIPCO 2013), 2013. mla: Enzner, Gerald, et al. “On the Acoustic Channel Identification in Multi-Microphone Systems via Adaptive Blind Signal Enhancement Techniques.” 21th European Signal Processing Conference (EUSIPCO 2013), 2013. short: 'G. Enzner, D. Schmid, R. Haeb-Umbach, in: 21th European Signal Processing Conference (EUSIPCO 2013), 2013.' date_created: 2019-07-12T05:27:46Z date_updated: 2022-01-06T06:51:08Z department: - _id: '54' language: - iso: eng main_file_link: - open_access: '1' url: https://groups.uni-paderborn.de/nt/pubs/2013/EnScHa2013.pdf oa: '1' publication: 21th European Signal Processing Conference (EUSIPCO 2013) status: public title: On the Acoustic Channel Identification in Multi-Microphone Systems via Adaptive Blind Signal Enhancement Techniques type: conference user_id: '44006' year: '2013' ... --- _id: '11815' author: - first_name: Jahn full_name: Heymann, Jahn id: '9168' last_name: Heymann - first_name: Oliver full_name: Walter, Oliver last_name: Walter - first_name: Reinhold full_name: Haeb-Umbach, Reinhold id: '242' last_name: Haeb-Umbach - first_name: Bhiksha full_name: Raj, Bhiksha last_name: Raj citation: ama: 'Heymann J, Walter O, Haeb-Umbach R, Raj B. Unsupervised Word Segmentation from Noisy Input. In: Automatic Speech Recognition and Understanding Workshop (ASRU 2013). ; 2013.' apa: Heymann, J., Walter, O., Haeb-Umbach, R., & Raj, B. (2013). Unsupervised Word Segmentation from Noisy Input. In Automatic Speech Recognition and Understanding Workshop (ASRU 2013). bibtex: '@inproceedings{Heymann_Walter_Haeb-Umbach_Raj_2013, title={Unsupervised Word Segmentation from Noisy Input}, booktitle={Automatic Speech Recognition and Understanding Workshop (ASRU 2013)}, author={Heymann, Jahn and Walter, Oliver and Haeb-Umbach, Reinhold and Raj, Bhiksha}, year={2013} }' chicago: Heymann, Jahn, Oliver Walter, Reinhold Haeb-Umbach, and Bhiksha Raj. “Unsupervised Word Segmentation from Noisy Input.” In Automatic Speech Recognition and Understanding Workshop (ASRU 2013), 2013. ieee: J. Heymann, O. Walter, R. Haeb-Umbach, and B. Raj, “Unsupervised Word Segmentation from Noisy Input,” in Automatic Speech Recognition and Understanding Workshop (ASRU 2013), 2013. mla: Heymann, Jahn, et al. “Unsupervised Word Segmentation from Noisy Input.” Automatic Speech Recognition and Understanding Workshop (ASRU 2013), 2013. short: 'J. Heymann, O. Walter, R. Haeb-Umbach, B. Raj, in: Automatic Speech Recognition and Understanding Workshop (ASRU 2013), 2013.' date_created: 2019-07-12T05:28:47Z date_updated: 2022-01-06T06:51:09Z department: - _id: '54' language: - iso: eng main_file_link: - open_access: '1' url: https://groups.uni-paderborn.de/nt/pubs/2013/HeWaHaRa13.pdf oa: '1' publication: Automatic Speech Recognition and Understanding Workshop (ASRU 2013) related_material: link: - description: Poster relation: supplementary_material url: https://groups.uni-paderborn.de/nt/pubs/2013/HeWaHaRa_Poster.pdf status: public title: Unsupervised Word Segmentation from Noisy Input type: conference user_id: '44006' year: '2013' ... --- _id: '11816' abstract: - lang: eng text: In this paper, we consider the Maximum Likelihood (ML) estimation of the parameters of a GAUSSIAN in the presence of censored, i.e., clipped data. We show that the resulting Expectation Maximization (EM) algorithm delivers virtually biasfree and efficient estimates, and we discuss its convergence properties. We also discuss optimal classification in the presence of censored data. Censored data are frequently encountered in wireless LAN positioning systems based on the fingerprinting method employing signal strength measurements, due to the limited sensitivity of the portable devices. Experiments both on simulated and real-world data demonstrate the effectiveness of the proposed algorithms. author: - first_name: Manh Kha full_name: Hoang, Manh Kha last_name: Hoang - first_name: Reinhold full_name: Haeb-Umbach, Reinhold id: '242' last_name: Haeb-Umbach citation: ama: 'Hoang MK, Haeb-Umbach R. Parameter estimation and classification of censored Gaussian data with application to WiFi indoor positioning. In: 38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013). ; 2013:3721-3725. doi:10.1109/ICASSP.2013.6638353' apa: Hoang, M. K., & Haeb-Umbach, R. (2013). Parameter estimation and classification of censored Gaussian data with application to WiFi indoor positioning. In 38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013) (pp. 3721–3725). https://doi.org/10.1109/ICASSP.2013.6638353 bibtex: '@inproceedings{Hoang_Haeb-Umbach_2013, title={Parameter estimation and classification of censored Gaussian data with application to WiFi indoor positioning}, DOI={10.1109/ICASSP.2013.6638353}, booktitle={38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013)}, author={Hoang, Manh Kha and Haeb-Umbach, Reinhold}, year={2013}, pages={3721–3725} }' chicago: Hoang, Manh Kha, and Reinhold Haeb-Umbach. “Parameter Estimation and Classification of Censored Gaussian Data with Application to WiFi Indoor Positioning.” In 38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013), 3721–25, 2013. https://doi.org/10.1109/ICASSP.2013.6638353. ieee: M. K. Hoang and R. Haeb-Umbach, “Parameter estimation and classification of censored Gaussian data with application to WiFi indoor positioning,” in 38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013), 2013, pp. 3721–3725. mla: Hoang, Manh Kha, and Reinhold Haeb-Umbach. “Parameter Estimation and Classification of Censored Gaussian Data with Application to WiFi Indoor Positioning.” 38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013), 2013, pp. 3721–25, doi:10.1109/ICASSP.2013.6638353. short: 'M.K. Hoang, R. Haeb-Umbach, in: 38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013), 2013, pp. 3721–3725.' date_created: 2019-07-12T05:28:48Z date_updated: 2022-01-06T06:51:09Z department: - _id: '54' doi: 10.1109/ICASSP.2013.6638353 keyword: - Gaussian processes - Global Positioning System - convergence - expectation-maximisation algorithm - fingerprint identification - indoor radio - signal classification - wireless LAN - EM algorithm - ML estimation - WiFi indoor positioning - censored Gaussian data classification - clipped data - convergence properties - expectation maximization algorithm - fingerprinting method - maximum likelihood estimation - optimal classification - parameters estimation - portable devices sensitivity - signal strength measurements - wireless LAN positioning systems - Convergence - IEEE 802.11 Standards - Maximum likelihood estimation - Parameter estimation - Position measurement - Training - Indoor positioning - censored data - expectation maximization - signal strength - wireless LAN language: - iso: eng main_file_link: - open_access: '1' url: https://groups.uni-paderborn.de/nt/pubs/2013/HoHa2013.pdf oa: '1' page: 3721-3725 publication: 38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013) publication_identifier: issn: - 1520-6149 related_material: link: - description: Poster relation: supplementary_material url: https://groups.uni-paderborn.de/nt/pubs/2013/HoHa2013_Poster.pdf status: public title: Parameter estimation and classification of censored Gaussian data with application to WiFi indoor positioning type: conference user_id: '44006' year: '2013' ... --- _id: '11841' abstract: - lang: eng text: Recently, substantial progress has been made in the field of reverberant speech signal processing, including both single- and multichannel de-reverberation techniques, and automatic speech recognition (ASR) techniques robust to reverberation. To evaluate state-of-the-art algorithms and obtain new insights regarding potential future research directions, we propose a common evaluation framework including datasets, tasks, and evaluation metrics for both speech enhancement and ASR techniques. The proposed framework will be used as a common basis for the REVERB (REverberant Voice Enhancement and Recognition Benchmark) challenge. This paper describes the rationale behind the challenge, and provides a detailed description of the evaluation framework and benchmark results. author: - first_name: Keisuke full_name: Kinoshita, Keisuke last_name: Kinoshita - first_name: Marc full_name: Delcroix, Marc last_name: Delcroix - first_name: Takuya full_name: Yoshioka, Takuya last_name: Yoshioka - first_name: Tomohiro full_name: Nakatani, Tomohiro last_name: Nakatani - first_name: Emanuel full_name: Habets, Emanuel last_name: Habets - first_name: Reinhold full_name: Haeb-Umbach, Reinhold id: '242' last_name: Haeb-Umbach - first_name: Volker full_name: Leutnant, Volker last_name: Leutnant - first_name: Armin full_name: Sehr, Armin last_name: Sehr - first_name: Walter full_name: Kellermann, Walter last_name: Kellermann - first_name: Roland full_name: Maas, Roland last_name: Maas - first_name: Sharon full_name: Gannot, Sharon last_name: Gannot - first_name: Bhiksha full_name: Raj, Bhiksha last_name: Raj citation: ama: 'Kinoshita K, Delcroix M, Yoshioka T, et al. The reverb challenge: a common evaluation framework for dereverberation and recognition of reverberant speech. In: IEEE Workshop on Applications of Signal Processing to Audio and Acoustics . ; 2013:22-23.' apa: 'Kinoshita, K., Delcroix, M., Yoshioka, T., Nakatani, T., Habets, E., Haeb-Umbach, R., … Raj, B. (2013). The reverb challenge: a common evaluation framework for dereverberation and recognition of reverberant speech. In IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (pp. 22–23).' bibtex: '@inproceedings{Kinoshita_Delcroix_Yoshioka_Nakatani_Habets_Haeb-Umbach_Leutnant_Sehr_Kellermann_Maas_et al._2013, title={The reverb challenge: a common evaluation framework for dereverberation and recognition of reverberant speech}, booktitle={ IEEE Workshop on Applications of Signal Processing to Audio and Acoustics }, author={Kinoshita, Keisuke and Delcroix, Marc and Yoshioka, Takuya and Nakatani, Tomohiro and Habets, Emanuel and Haeb-Umbach, Reinhold and Leutnant, Volker and Sehr, Armin and Kellermann, Walter and Maas, Roland and et al.}, year={2013}, pages={22–23} }' chicago: 'Kinoshita, Keisuke, Marc Delcroix, Takuya Yoshioka, Tomohiro Nakatani, Emanuel Habets, Reinhold Haeb-Umbach, Volker Leutnant, et al. “The Reverb Challenge: A Common Evaluation Framework for Dereverberation and Recognition of Reverberant Speech.” In IEEE Workshop on Applications of Signal Processing to Audio and Acoustics , 22–23, 2013.' ieee: 'K. Kinoshita et al., “The reverb challenge: a common evaluation framework for dereverberation and recognition of reverberant speech,” in IEEE Workshop on Applications of Signal Processing to Audio and Acoustics , 2013, pp. 22–23.' mla: 'Kinoshita, Keisuke, et al. “The Reverb Challenge: A Common Evaluation Framework for Dereverberation and Recognition of Reverberant Speech.” IEEE Workshop on Applications of Signal Processing to Audio and Acoustics , 2013, pp. 22–23.' short: 'K. Kinoshita, M. Delcroix, T. Yoshioka, T. Nakatani, E. Habets, R. Haeb-Umbach, V. Leutnant, A. Sehr, W. Kellermann, R. Maas, S. Gannot, B. Raj, in: IEEE Workshop on Applications of Signal Processing to Audio and Acoustics , 2013, pp. 22–23.' date_created: 2019-07-12T05:29:17Z date_updated: 2022-01-06T06:51:11Z department: - _id: '54' keyword: - Reverberant speech - dereverberation - ASR - evaluation - challenge language: - iso: eng main_file_link: - open_access: '1' url: https://groups.uni-paderborn.de/nt/pubs/2013/Reverb2013.pdf oa: '1' page: ' 22-23 ' publication: ' IEEE Workshop on Applications of Signal Processing to Audio and Acoustics ' status: public title: 'The reverb challenge: a common evaluation framework for dereverberation and recognition of reverberant speech' type: conference user_id: '44006' year: '2013' ... --- _id: '11909' abstract: - lang: eng text: 'We present a novel method to exploit correlations of adjacent time-frequency (TF)-slots for a sparseness-based blind speech separation (BSS) system. Usually, these correlations are exploited by some heuristic smoothing techniques in the post-processing of the estimated soft TF masks. We propose a different approach: Based on our previous work with one-dimensional (1D)-hidden Markov models (HMMs) along the time axis we extend the modeling to two-dimensional (2D)-HMMs to exploit both temporal and spectral correlations in the speech signal. Based on the principles of turbo decoding we solved the complex inference of 2D-HMMs by a modified forward-backward algorithm which operates alternatingly along the time and the frequency axis. Extrinsic information is exchanged between these steps such that increasingly better soft time-frequency masks are obtained, leading to improved speech separation performance in highly reverberant recording conditions.' author: - first_name: Dang Hai full_name: Tran Vu, Dang Hai last_name: Tran Vu - first_name: Reinhold full_name: Haeb-Umbach, Reinhold id: '242' last_name: Haeb-Umbach citation: ama: 'Tran Vu DH, Haeb-Umbach R. Blind Speech Separation Exploiting Temporal and Spectral Correlations Using Turbo Decoding of 2D-HMMs. In: 21th European Signal Processing Conference (EUSIPCO 2013). ; 2013.' apa: Tran Vu, D. H., & Haeb-Umbach, R. (2013). Blind Speech Separation Exploiting Temporal and Spectral Correlations Using Turbo Decoding of 2D-HMMs. In 21th European Signal Processing Conference (EUSIPCO 2013). bibtex: '@inproceedings{Tran Vu_Haeb-Umbach_2013, title={Blind Speech Separation Exploiting Temporal and Spectral Correlations Using Turbo Decoding of 2D-HMMs}, booktitle={21th European Signal Processing Conference (EUSIPCO 2013)}, author={Tran Vu, Dang Hai and Haeb-Umbach, Reinhold}, year={2013} }' chicago: Tran Vu, Dang Hai, and Reinhold Haeb-Umbach. “Blind Speech Separation Exploiting Temporal and Spectral Correlations Using Turbo Decoding of 2D-HMMs.” In 21th European Signal Processing Conference (EUSIPCO 2013), 2013. ieee: D. H. Tran Vu and R. Haeb-Umbach, “Blind Speech Separation Exploiting Temporal and Spectral Correlations Using Turbo Decoding of 2D-HMMs,” in 21th European Signal Processing Conference (EUSIPCO 2013), 2013. mla: Tran Vu, Dang Hai, and Reinhold Haeb-Umbach. “Blind Speech Separation Exploiting Temporal and Spectral Correlations Using Turbo Decoding of 2D-HMMs.” 21th European Signal Processing Conference (EUSIPCO 2013), 2013. short: 'D.H. Tran Vu, R. Haeb-Umbach, in: 21th European Signal Processing Conference (EUSIPCO 2013), 2013.' date_created: 2019-07-12T05:30:36Z 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/2013/TrHa2013_01.pdf oa: '1' publication: 21th European Signal Processing Conference (EUSIPCO 2013) related_material: link: - description: Presentation relation: supplementary_material url: https://groups.uni-paderborn.de/nt/pubs/2013/TrHa2013_01_Presentation.pdf status: public title: Blind Speech Separation Exploiting Temporal and Spectral Correlations Using Turbo Decoding of 2D-HMMs type: conference user_id: '44006' year: '2013' ... --- _id: '11921' abstract: - lang: eng text: In this paper we consider the unsupervised word discovery from phonetic input. We employ a word segmentation algorithm which simultaneously develops a lexicon, i.e., the transcription of a word in terms of a phone sequence, learns a n-gram language model describing word and word sequence probabilities, and carries out the segmentation itself. The underlying statistical model is that of a Pitman-Yor process, a concept known from Bayesian non-parametrics, which allows for an a priori unknown and unlimited number of different words. Using a hierarchy of Pitman-Yor processes, language models of different order can be employed and nesting it with another hierarchy of Pitman-Yor processes on the phone level allows for backing off unknown word unigrams by phone m-grams. We present results on a large-vocabulary task, assuming an error-free phone sequence is given. We finish by discussing options how to cope with noisy phone sequences. author: - first_name: Oliver full_name: Walter, Oliver last_name: Walter - first_name: Reinhold full_name: Haeb-Umbach, Reinhold id: '242' last_name: Haeb-Umbach - first_name: Sourish full_name: Chaudhuri, Sourish last_name: Chaudhuri - first_name: Bhiksha full_name: Raj, Bhiksha last_name: Raj citation: ama: 'Walter O, Haeb-Umbach R, Chaudhuri S, Raj B. Unsupervised Word Discovery from Phonetic Input Using Nested Pitman-Yor Language Modeling. In: IEEE International Conference on Robotics and Automation (ICRA 2013). ; 2013.' apa: Walter, O., Haeb-Umbach, R., Chaudhuri, S., & Raj, B. (2013). Unsupervised Word Discovery from Phonetic Input Using Nested Pitman-Yor Language Modeling. In IEEE International Conference on Robotics and Automation (ICRA 2013). bibtex: '@inproceedings{Walter_Haeb-Umbach_Chaudhuri_Raj_2013, title={Unsupervised Word Discovery from Phonetic Input Using Nested Pitman-Yor Language Modeling}, booktitle={IEEE International Conference on Robotics and Automation (ICRA 2013)}, author={Walter, Oliver and Haeb-Umbach, Reinhold and Chaudhuri, Sourish and Raj, Bhiksha}, year={2013} }' chicago: Walter, Oliver, Reinhold Haeb-Umbach, Sourish Chaudhuri, and Bhiksha Raj. “Unsupervised Word Discovery from Phonetic Input Using Nested Pitman-Yor Language Modeling.” In IEEE International Conference on Robotics and Automation (ICRA 2013), 2013. ieee: O. Walter, R. Haeb-Umbach, S. Chaudhuri, and B. Raj, “Unsupervised Word Discovery from Phonetic Input Using Nested Pitman-Yor Language Modeling,” in IEEE International Conference on Robotics and Automation (ICRA 2013), 2013. mla: Walter, Oliver, et al. “Unsupervised Word Discovery from Phonetic Input Using Nested Pitman-Yor Language Modeling.” IEEE International Conference on Robotics and Automation (ICRA 2013), 2013. short: 'O. Walter, R. Haeb-Umbach, S. Chaudhuri, B. Raj, in: IEEE International Conference on Robotics and Automation (ICRA 2013), 2013.' date_created: 2019-07-12T05:30:50Z 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/2013/WaHaChRa2013.pdf oa: '1' publication: IEEE International Conference on Robotics and Automation (ICRA 2013) related_material: link: - description: Poster relation: supplementary_material url: https://groups.uni-paderborn.de/nt/pubs/2013/WaHaChRa2013_Poster.pdf - description: Spotlight relation: supplementary_material url: https://groups.uni-paderborn.de/nt/pubs/2013/WaHaChRa2013_Spotlight.pdf status: public title: Unsupervised Word Discovery from Phonetic Input Using Nested Pitman-Yor Language Modeling type: conference user_id: '44006' year: '2013' ...