--- _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' ... --- _id: '11924' author: - first_name: Oliver full_name: Walter, Oliver last_name: Walter - first_name: Timo full_name: Korthals, Timo last_name: Korthals - 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: 'Walter O, Korthals T, Haeb-Umbach R, Raj B. Hierarchical System for Word Discovery Exploiting DTW-Based Initialization. In: Automatic Speech Recognition and Understanding Workshop (ASRU 2013). ; 2013.' apa: Walter, O., Korthals, T., Haeb-Umbach, R., & Raj, B. (2013). Hierarchical System for Word Discovery Exploiting DTW-Based Initialization. In Automatic Speech Recognition and Understanding Workshop (ASRU 2013). bibtex: '@inproceedings{Walter_Korthals_Haeb-Umbach_Raj_2013, title={Hierarchical System for Word Discovery Exploiting DTW-Based Initialization}, booktitle={Automatic Speech Recognition and Understanding Workshop (ASRU 2013)}, author={Walter, Oliver and Korthals, Timo and Haeb-Umbach, Reinhold and Raj, Bhiksha}, year={2013} }' chicago: Walter, Oliver, Timo Korthals, Reinhold Haeb-Umbach, and Bhiksha Raj. “Hierarchical System for Word Discovery Exploiting DTW-Based Initialization.” In Automatic Speech Recognition and Understanding Workshop (ASRU 2013), 2013. ieee: O. Walter, T. Korthals, R. Haeb-Umbach, and B. Raj, “Hierarchical System for Word Discovery Exploiting DTW-Based Initialization,” in Automatic Speech Recognition and Understanding Workshop (ASRU 2013), 2013. mla: Walter, Oliver, et al. “Hierarchical System for Word Discovery Exploiting DTW-Based Initialization.” Automatic Speech Recognition and Understanding Workshop (ASRU 2013), 2013. short: 'O. Walter, T. Korthals, R. Haeb-Umbach, B. Raj, in: Automatic Speech Recognition and Understanding Workshop (ASRU 2013), 2013.' date_created: 2019-07-12T05:30:53Z 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/WaKoHaRa13.pdf oa: '1' publication: Automatic Speech Recognition and Understanding Workshop (ASRU 2013) related_material: link: - description: Award relation: supplementary_material url: https://groups.uni-paderborn.de/nt/pubs/2013/WaKoHaRa13_Award.pdf - description: Poster relation: supplementary_material url: https://groups.uni-paderborn.de/nt/pubs/2013/WaKoHaRa13_Poster.pdf status: public title: Hierarchical System for Word Discovery Exploiting DTW-Based Initialization type: conference user_id: '44006' year: '2013' ... --- _id: '11926' abstract: - lang: eng text: In this paper we present a novel initialization method for unsupervised learning of acoustic patterns in recordings of continuous speech. The pattern discovery task is solved by dynamic time warping whose performance we improve by a smart starting point selection. This enables a more accurate discovery of patterns compared to conventional approaches. After graph-based clustering the patterns are employed for training hidden Markov models for an unsupervised speech acquisition. By iterating between model training and decoding in an EM-like framework the word accuracy is continuously improved. On the TIDIGITS corpus we achieve a word error rate of about 13 percent by the proposed unsupervised pattern discovery approach, which neither assumes knowledge of the acoustic units nor of the labels of the training data. author: - first_name: Oliver full_name: Walter, Oliver last_name: Walter - first_name: Joerg full_name: Schmalenstroeer, Joerg id: '460' last_name: Schmalenstroeer - first_name: Reinhold full_name: Haeb-Umbach, Reinhold id: '242' last_name: Haeb-Umbach citation: ama: Walter O, Schmalenstroeer J, Haeb-Umbach R. A Novel Initialization Method for Unsupervised Learning of Acoustic Patterns in Speech (FGNT-2013-01).; 2013. apa: Walter, O., Schmalenstroeer, J., & Haeb-Umbach, R. (2013). A Novel Initialization Method for Unsupervised Learning of Acoustic Patterns in Speech (FGNT-2013-01). bibtex: '@book{Walter_Schmalenstroeer_Haeb-Umbach_2013, title={A Novel Initialization Method for Unsupervised Learning of Acoustic Patterns in Speech (FGNT-2013-01)}, author={Walter, Oliver and Schmalenstroeer, Joerg and Haeb-Umbach, Reinhold}, year={2013} }' chicago: Walter, Oliver, Joerg Schmalenstroeer, and Reinhold Haeb-Umbach. A Novel Initialization Method for Unsupervised Learning of Acoustic Patterns in Speech (FGNT-2013-01), 2013. ieee: O. Walter, J. Schmalenstroeer, and R. Haeb-Umbach, A Novel Initialization Method for Unsupervised Learning of Acoustic Patterns in Speech (FGNT-2013-01). 2013. mla: Walter, Oliver, et al. A Novel Initialization Method for Unsupervised Learning of Acoustic Patterns in Speech (FGNT-2013-01). 2013. short: O. Walter, J. Schmalenstroeer, R. Haeb-Umbach, A Novel Initialization Method for Unsupervised Learning of Acoustic Patterns in Speech (FGNT-2013-01), 2013. date_created: 2019-07-12T05:30:55Z 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/WaScHa2013.pdf oa: '1' status: public title: A Novel Initialization Method for Unsupervised Learning of Acoustic Patterns in Speech (FGNT-2013-01) type: report user_id: '44006' year: '2013' ... --- _id: '15918' author: - first_name: Tibor full_name: Jager, Tibor last_name: Jager - first_name: Kenneth G. full_name: Paterson, Kenneth G. last_name: Paterson - first_name: Juraj full_name: Somorovsky, Juraj id: '83504' last_name: Somorovsky orcid: 0000-0002-3593-7720 citation: ama: 'Jager T, Paterson KG, Somorovsky J. One Bad Apple: Backwards Compatibility Attacks on State-of-the-Art Cryptography. In: 20th Annual Network and Distributed System Security Symposium, NDSS 2013, San Diego, California, USA, February 24-27, 2013. ; 2013.' apa: 'Jager, T., Paterson, K. G., & Somorovsky, J. (2013). One Bad Apple: Backwards Compatibility Attacks on State-of-the-Art Cryptography. In 20th Annual Network and Distributed System Security Symposium, NDSS 2013, San Diego, California, USA, February 24-27, 2013.' bibtex: '@inproceedings{Jager_Paterson_Somorovsky_2013, title={One Bad Apple: Backwards Compatibility Attacks on State-of-the-Art Cryptography}, booktitle={20th Annual Network and Distributed System Security Symposium, NDSS 2013, San Diego, California, USA, February 24-27, 2013}, author={Jager, Tibor and Paterson, Kenneth G. and Somorovsky, Juraj}, year={2013} }' chicago: 'Jager, Tibor, Kenneth G. Paterson, and Juraj Somorovsky. “One Bad Apple: Backwards Compatibility Attacks on State-of-the-Art Cryptography.” In 20th Annual Network and Distributed System Security Symposium, NDSS 2013, San Diego, California, USA, February 24-27, 2013, 2013.' ieee: 'T. Jager, K. G. Paterson, and J. Somorovsky, “One Bad Apple: Backwards Compatibility Attacks on State-of-the-Art Cryptography,” in 20th Annual Network and Distributed System Security Symposium, NDSS 2013, San Diego, California, USA, February 24-27, 2013, 2013.' mla: 'Jager, Tibor, et al. “One Bad Apple: Backwards Compatibility Attacks on State-of-the-Art Cryptography.” 20th Annual Network and Distributed System Security Symposium, NDSS 2013, San Diego, California, USA, February 24-27, 2013, 2013.' short: 'T. Jager, K.G. Paterson, J. Somorovsky, in: 20th Annual Network and Distributed System Security Symposium, NDSS 2013, San Diego, California, USA, February 24-27, 2013, 2013.' date_created: 2020-02-15T10:35:17Z date_updated: 2022-01-06T06:52:40Z extern: '1' language: - iso: eng main_file_link: - open_access: '1' url: https://www.ndss-symposium.org/ndss2013/ndss-2013-programme/one-bad-apple-backwards-compatibility-attacks-state-art-cryptography/ oa: '1' publication: 20th Annual Network and Distributed System Security Symposium, NDSS 2013, San Diego, California, USA, February 24-27, 2013 status: public title: 'One Bad Apple: Backwards Compatibility Attacks on State-of-the-Art Cryptography' type: conference user_id: '83504' year: '2013' ... --- _id: '9648' author: - first_name: Jarmila full_name: Mildorf, Jarmila id: '356' last_name: Mildorf citation: ama: 'Mildorf J. Book review: Christoph Schubert (2009). “Raumkonstitution durch Sprache: Blickführung, Bildschemata und Kohäsion in Deskriptionssequenzen englischer Texte.” Tübingen: Max Niemeyer. Informationsmittel für Bibliotheken. Published online 2013.' apa: 'Mildorf, J. (2013). Book review: Christoph Schubert (2009). “Raumkonstitution durch Sprache: Blickführung, Bildschemata und Kohäsion in Deskriptionssequenzen englischer Texte.” Tübingen: Max Niemeyer. In Informationsmittel für Bibliotheken.' bibtex: '@article{Mildorf_2013, title={Book review: Christoph Schubert (2009). “Raumkonstitution durch Sprache: Blickführung, Bildschemata und Kohäsion in Deskriptionssequenzen englischer Texte.” Tübingen: Max Niemeyer}, journal={Informationsmittel für Bibliotheken}, author={Mildorf, Jarmila}, year={2013} }' chicago: 'Mildorf, Jarmila. “Book Review: Christoph Schubert (2009). ‘Raumkonstitution Durch Sprache: Blickführung, Bildschemata Und Kohäsion in Deskriptionssequenzen Englischer Texte.’ Tübingen: Max Niemeyer.” Informationsmittel Für Bibliotheken, 2013.' ieee: 'J. Mildorf, “Book review: Christoph Schubert (2009). ‘Raumkonstitution durch Sprache: Blickführung, Bildschemata und Kohäsion in Deskriptionssequenzen englischer Texte.’ Tübingen: Max Niemeyer,” Informationsmittel für Bibliotheken. 2013.' mla: 'Mildorf, Jarmila. “Book Review: Christoph Schubert (2009). ‘Raumkonstitution Durch Sprache: Blickführung, Bildschemata Und Kohäsion in Deskriptionssequenzen Englischer Texte.’ Tübingen: Max Niemeyer.” Informationsmittel Für Bibliotheken, 2013.' short: J. Mildorf, Informationsmittel Für Bibliotheken (2013). date_created: 2019-05-07T09:33:30Z date_updated: 2022-01-16T11:35:05Z department: - _id: '1' language: - iso: eng main_file_link: - open_access: '1' url: http://ifb.bsz-bw.de/bsz306346060rez-1.pdf oa: '1' publication: Informationsmittel für Bibliotheken status: public title: 'Book review: Christoph Schubert (2009). ''Raumkonstitution durch Sprache: Blickführung, Bildschemata und Kohäsion in Deskriptionssequenzen englischer Texte.'' Tübingen: Max Niemeyer' type: review user_id: '356' year: '2013' ... --- _id: '28688' abstract: - lang: eng text: Why are nearly simultaneous stimuli frequently perceived in reversed order? The origin of errors in temporal judgments is a question older than experimental psychology itself. One of the earliest suspects is attention. According to the concept of prior entry, attention accelerates attended stimuli; thus they have “prior entry” to perceptive processing stages, including consciousness. Although latency advantages for attended stimuli have been revealed in psychophysical studies many times, these measures (e.g. temporal order judgments, simultaneity judgments) cannot test the prior-entry hypothesis completely. Since they assess latency differences between an attended and an unattended stimulus, they cannot distinguish between faster processing of attended stimuli and slower processing of unattended stimuli. Therefore, we present a novel paradigm providing separate estimates for processing advantages respectively disadvantages of attended and unattended stimuli. We found that deceleration of unattended stimuli contributes more strongly to the prior-entry illusion than acceleration of attended stimuli. Thus, in the temporal domain, attention fulfills its selective function primarily by deceleration of unattended stimuli. That means it is actually posterior entry, not prior entry which accounts for the largest part of the effect. article_number: e54257 author: - first_name: Katharina full_name: Weiß, Katharina last_name: Weiß - first_name: Frederic full_name: Hilkenmeier, Frederic last_name: Hilkenmeier - first_name: Ingrid full_name: Scharlau, Ingrid id: '451' last_name: Scharlau orcid: 0000-0003-2364-9489 citation: ama: 'Weiß K, Hilkenmeier F, Scharlau I. Attention and the Speed of Information Processing: Posterior Entry for Unattended Stimuli Instead of Prior Entry for Attended Stimuli. PLoS ONE. 2013;8. doi:10.1371/journal.pone.0054257' apa: 'Weiß, K., Hilkenmeier, F., & Scharlau, I. (2013). Attention and the Speed of Information Processing: Posterior Entry for Unattended Stimuli Instead of Prior Entry for Attended Stimuli. PLoS ONE, 8, Article e54257. https://doi.org/10.1371/journal.pone.0054257' bibtex: '@article{Weiß_Hilkenmeier_Scharlau_2013, title={Attention and the Speed of Information Processing: Posterior Entry for Unattended Stimuli Instead of Prior Entry for Attended Stimuli}, volume={8}, DOI={10.1371/journal.pone.0054257}, number={e54257}, journal={PLoS ONE}, author={Weiß, Katharina and Hilkenmeier, Frederic and Scharlau, Ingrid}, year={2013} }' chicago: 'Weiß, Katharina, Frederic Hilkenmeier, and Ingrid Scharlau. “Attention and the Speed of Information Processing: Posterior Entry for Unattended Stimuli Instead of Prior Entry for Attended Stimuli.” PLoS ONE 8 (2013). https://doi.org/10.1371/journal.pone.0054257.' ieee: 'K. Weiß, F. Hilkenmeier, and I. Scharlau, “Attention and the Speed of Information Processing: Posterior Entry for Unattended Stimuli Instead of Prior Entry for Attended Stimuli,” PLoS ONE, vol. 8, Art. no. e54257, 2013, doi: 10.1371/journal.pone.0054257.' mla: 'Weiß, Katharina, et al. “Attention and the Speed of Information Processing: Posterior Entry for Unattended Stimuli Instead of Prior Entry for Attended Stimuli.” PLoS ONE, vol. 8, e54257, 2013, doi:10.1371/journal.pone.0054257.' short: K. Weiß, F. Hilkenmeier, I. Scharlau, PLoS ONE 8 (2013). date_created: 2021-12-13T10:02:05Z date_updated: 2022-06-07T00:13:12Z department: - _id: '424' doi: 10.1371/journal.pone.0054257 funded_apc: '1' intvolume: ' 8' language: - iso: eng main_file_link: - open_access: '1' url: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0054257 oa: '1' publication: PLoS ONE publication_identifier: issn: - 1932-6203 publication_status: published status: public title: 'Attention and the Speed of Information Processing: Posterior Entry for Unattended Stimuli Instead of Prior Entry for Attended Stimuli' type: journal_article user_id: '42165' volume: 8 year: '2013' ... --- _id: '11832' abstract: - lang: eng text: In this paper we propose an approach to retrieve the absolute geometry of an acoustic sensor network, consisting of spatially distributed microphone arrays, from reverberant speech input. The calibration relies on direction of arrival measurements of the individual arrays. The proposed calibration algorithm is derived from a maximum-likelihood approach employing circular statistics. Since a sensor node consists of a microphone array with known intra-array geometry, we are able to obtain an absolute geometry estimate, including angles and distances. Simulation results demonstrate the effectiveness of the approach. author: - first_name: Florian full_name: Jacob, Florian last_name: Jacob - first_name: Joerg full_name: Schmalenstroeer, Joerg id: '460' last_name: Schmalenstroeer - first_name: Reinhold full_name: Haeb-Umbach, Reinhold id: '242' last_name: Haeb-Umbach citation: ama: 'Jacob F, Schmalenstroeer J, Haeb-Umbach R. DoA-Based Microphone Array Position Self-Calibration Using Circular Statistic. In: 38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013). ; 2013:116-120. doi:10.1109/ICASSP.2013.6637620' apa: Jacob, F., Schmalenstroeer, J., & Haeb-Umbach, R. (2013). DoA-Based Microphone Array Position Self-Calibration Using Circular Statistic. 38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013), 116–120. https://doi.org/10.1109/ICASSP.2013.6637620 bibtex: '@inproceedings{Jacob_Schmalenstroeer_Haeb-Umbach_2013, title={DoA-Based Microphone Array Position Self-Calibration Using Circular Statistic}, DOI={10.1109/ICASSP.2013.6637620}, booktitle={38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013)}, author={Jacob, Florian and Schmalenstroeer, Joerg and Haeb-Umbach, Reinhold}, year={2013}, pages={116–120} }' chicago: Jacob, Florian, Joerg Schmalenstroeer, and Reinhold Haeb-Umbach. “DoA-Based Microphone Array Position Self-Calibration Using Circular Statistic.” In 38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013), 116–20, 2013. https://doi.org/10.1109/ICASSP.2013.6637620. ieee: 'F. Jacob, J. Schmalenstroeer, and R. Haeb-Umbach, “DoA-Based Microphone Array Position Self-Calibration Using Circular Statistic,” in 38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013), 2013, pp. 116–120, doi: 10.1109/ICASSP.2013.6637620.' mla: Jacob, Florian, et al. “DoA-Based Microphone Array Position Self-Calibration Using Circular Statistic.” 38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013), 2013, pp. 116–20, doi:10.1109/ICASSP.2013.6637620. short: 'F. Jacob, J. Schmalenstroeer, R. Haeb-Umbach, in: 38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013), 2013, pp. 116–120.' date_created: 2019-07-12T05:29:07Z date_updated: 2023-10-26T08:11:12Z department: - _id: '54' doi: 10.1109/ICASSP.2013.6637620 keyword: - Geometry calibration - microphone arrays - position self-calibration language: - iso: eng main_file_link: - open_access: '1' url: https://groups.uni-paderborn.de/nt/pubs/2013/JacSchHae_ICASSP2013_Rev2.pdf oa: '1' page: 116-120 publication: 38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013) publication_identifier: issn: - 1520-6149 quality_controlled: '1' related_material: link: - description: Presentation relation: supplementary_material url: https://groups.uni-paderborn.de/nt/pubs/2013/JaScHa13_Presentation.pdf status: public title: DoA-Based Microphone Array Position Self-Calibration Using Circular Statistic type: conference user_id: '460' year: '2013' ... --- _id: '11891' abstract: - lang: eng text: In this paper we present a combined hardware/software approach for synchronizing the sampling clocks of an acoustic sensor network. A first clock frequency offset estimate is obtained by a time stamp exchange protocol with a low data rate and computational requirements. The estimate is then postprocessed by a Kalman filter which exploits the specific properties of the statistics of the frequency offset estimation error. In long term experiments the deviation between the sampling oscillators of two sensor nodes never exceeded half a sample with a wired and with a wireless link between the nodes. The achieved precision enables the estimation of time difference of arrival values across different hardware devices without sharing a common sampling hardware. author: - first_name: Joerg full_name: Schmalenstroeer, Joerg id: '460' last_name: Schmalenstroeer - first_name: Reinhold full_name: Haeb-Umbach, Reinhold id: '242' last_name: Haeb-Umbach citation: ama: 'Schmalenstroeer J, Haeb-Umbach R. Sampling Rate Synchronisation in Acoustic Sensor Networks with a Pre-Trained Clock Skew Error Model. In: 21th European Signal Processing Conference (EUSIPCO 2013). ; 2013.' apa: Schmalenstroeer, J., & Haeb-Umbach, R. (2013). Sampling Rate Synchronisation in Acoustic Sensor Networks with a Pre-Trained Clock Skew Error Model. 21th European Signal Processing Conference (EUSIPCO 2013). bibtex: '@inproceedings{Schmalenstroeer_Haeb-Umbach_2013, title={Sampling Rate Synchronisation in Acoustic Sensor Networks with a Pre-Trained Clock Skew Error Model}, booktitle={21th European Signal Processing Conference (EUSIPCO 2013)}, author={Schmalenstroeer, Joerg and Haeb-Umbach, Reinhold}, year={2013} }' chicago: Schmalenstroeer, Joerg, and Reinhold Haeb-Umbach. “Sampling Rate Synchronisation in Acoustic Sensor Networks with a Pre-Trained Clock Skew Error Model.” In 21th European Signal Processing Conference (EUSIPCO 2013), 2013. ieee: J. Schmalenstroeer and R. Haeb-Umbach, “Sampling Rate Synchronisation in Acoustic Sensor Networks with a Pre-Trained Clock Skew Error Model,” 2013. mla: Schmalenstroeer, Joerg, and Reinhold Haeb-Umbach. “Sampling Rate Synchronisation in Acoustic Sensor Networks with a Pre-Trained Clock Skew Error Model.” 21th European Signal Processing Conference (EUSIPCO 2013), 2013. short: 'J. Schmalenstroeer, R. Haeb-Umbach, in: 21th European Signal Processing Conference (EUSIPCO 2013), 2013.' date_created: 2019-07-12T05:30:15Z date_updated: 2023-10-26T08:11:01Z department: - _id: '54' keyword: - synchronization - acoustic sensor network language: - iso: eng main_file_link: - open_access: '1' url: https://groups.uni-paderborn.de/nt/pubs/2013/SchHaeb2013.pdf oa: '1' publication: 21th European Signal Processing Conference (EUSIPCO 2013) quality_controlled: '1' related_material: link: - description: Presentation relation: supplementary_material url: https://groups.uni-paderborn.de/nt/pubs/2013/SchHaeb2013_Presentation.pdf status: public title: Sampling Rate Synchronisation in Acoustic Sensor Networks with a Pre-Trained Clock Skew Error Model type: conference user_id: '460' year: '2013' ... --- _id: '47940' abstract: - lang: eng text: Copper oxide and cobalt oxide (CuO, Co3O4) nanocrystals (NCs) have been successfully prepared in a short time using microwave irradiation without any postannealing treatment. Both kinds of nanocrystals (NCs) have been prepared using copper nitrate and cobalt nitrate as the starting materials and distilled water as the solvent. The resulted powders of nanocrystals (NCs) were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and atomic force microscopy (AFM) measurements. The obtained results confirm the presence of the both of oxides nanopowders produced during chemical precipitation using microwave irradiation. A strong emission under UV excitation is obtained from the prepared CuO and Co3O4 nanoparticles. The results show that the nanoparticles have high dispersion and narrow size distribution. The line scans of atomic force microscopy (AFM) images of the nanocrystals (NCs) sprayed on GaAs substrates confirm the results of both X-ray diffraction and transmission electron microscopy. Furthermore, vibrational studies have been carried out using Raman spectroscopic technique. Specific Raman peaks have been observed in the CuO and Co3O4 nanostructures, and the full width at half maximum (FWHM) of the peaks indicates a small particle size of the nanocrystals. article_type: original author: - first_name: M. full_name: Rashad, M. last_name: Rashad - first_name: Michael full_name: Rüsing, Michael id: '22501' last_name: Rüsing orcid: 0000-0003-4682-4577 - first_name: Gerhard full_name: Berth, Gerhard id: '53' last_name: Berth - first_name: K. full_name: Lischka, K. last_name: Lischka - first_name: A. full_name: Pawlis, A. last_name: Pawlis citation: ama: 'Rashad M, Rüsing M, Berth G, Lischka K, Pawlis A. CuO and Co3O4 Nanoparticles: Synthesis, Characterizations, and Raman Spectroscopy. Journal of Nanomaterials. 2013;2013:714853. doi:10.1155/2013/714853' apa: 'Rashad, M., Rüsing, M., Berth, G., Lischka, K., & Pawlis, A. (2013). CuO and Co3O4 Nanoparticles: Synthesis, Characterizations, and Raman Spectroscopy. Journal of Nanomaterials, 2013, 714853. https://doi.org/10.1155/2013/714853' bibtex: '@article{Rashad_Rüsing_Berth_Lischka_Pawlis_2013, title={CuO and Co3O4 Nanoparticles: Synthesis, Characterizations, and Raman Spectroscopy}, volume={2013}, DOI={10.1155/2013/714853}, journal={Journal of Nanomaterials}, publisher={Hindawi Limited}, author={Rashad, M. and Rüsing, Michael and Berth, Gerhard and Lischka, K. and Pawlis, A.}, year={2013}, pages={714853} }' chicago: 'Rashad, M., Michael Rüsing, Gerhard Berth, K. Lischka, and A. Pawlis. “CuO and Co3O4 Nanoparticles: Synthesis, Characterizations, and Raman Spectroscopy.” Journal of Nanomaterials 2013 (2013): 714853. https://doi.org/10.1155/2013/714853.' ieee: 'M. Rashad, M. Rüsing, G. Berth, K. Lischka, and A. Pawlis, “CuO and Co3O4 Nanoparticles: Synthesis, Characterizations, and Raman Spectroscopy,” Journal of Nanomaterials, vol. 2013, p. 714853, 2013, doi: 10.1155/2013/714853.' mla: 'Rashad, M., et al. “CuO and Co3O4 Nanoparticles: Synthesis, Characterizations, and Raman Spectroscopy.” Journal of Nanomaterials, vol. 2013, Hindawi Limited, 2013, p. 714853, doi:10.1155/2013/714853.' short: M. Rashad, M. Rüsing, G. Berth, K. Lischka, A. Pawlis, Journal of Nanomaterials 2013 (2013) 714853. date_created: 2023-10-11T07:09:27Z date_updated: 2023-10-11T07:24:25Z department: - _id: '15' doi: 10.1155/2013/714853 intvolume: ' 2013' keyword: - General Materials Science language: - iso: eng main_file_link: - open_access: '1' url: https://dl.acm.org/doi/pdf/10.1155/2013/714853 oa: '1' page: '714853' publication: Journal of Nanomaterials publication_identifier: eissn: - 1687-4129 issn: - 1687-4110 publication_status: published publisher: Hindawi Limited quality_controlled: '1' status: public title: 'CuO and Co3O4 Nanoparticles: Synthesis, Characterizations, and Raman Spectroscopy' type: journal_article user_id: '22501' volume: 2013 year: '2013' ... --- _id: '11818' abstract: - lang: eng text: In this paper we present a system for indoor navigation based on received signal strength index information of Wireless-LAN access points and relative position estimates. The relative position information is gathered from inertial smartphone sensors using a step detection and an orientation estimate. Our map data is hosted on a server employing a map renderer and a SQL database. The database includes a complete multilevel office building, within which the user can navigate. During navigation, the client retrieves the position estimate from the server, together with the corresponding map tiles to visualize the user's position on the smartphone display. author: - first_name: Manh Kha full_name: Hoang, Manh Kha last_name: Hoang - first_name: Sarah full_name: Schmitz, Sarah last_name: Schmitz - first_name: Christian full_name: Drueke, Christian last_name: Drueke - first_name: Dang Hai Tran full_name: Vu, Dang Hai Tran last_name: Vu - first_name: Joerg full_name: Schmalenstroeer, Joerg id: '460' last_name: Schmalenstroeer - first_name: Reinhold full_name: Haeb-Umbach, Reinhold id: '242' last_name: Haeb-Umbach citation: ama: 'Hoang MK, Schmitz S, Drueke C, Vu DHT, Schmalenstroeer J, Haeb-Umbach R. Server based indoor navigation using RSSI and inertial sensor information. In: Positioning Navigation and Communication (WPNC), 2013 10th Workshop On. ; 2013:1-6. doi:10.1109/WPNC.2013.6533263' apa: Hoang, M. K., Schmitz, S., Drueke, C., Vu, D. H. T., Schmalenstroeer, J., & Haeb-Umbach, R. (2013). Server based indoor navigation using RSSI and inertial sensor information. Positioning Navigation and Communication (WPNC), 2013 10th Workshop On, 1–6. https://doi.org/10.1109/WPNC.2013.6533263 bibtex: '@inproceedings{Hoang_Schmitz_Drueke_Vu_Schmalenstroeer_Haeb-Umbach_2013, title={Server based indoor navigation using RSSI and inertial sensor information}, DOI={10.1109/WPNC.2013.6533263}, booktitle={Positioning Navigation and Communication (WPNC), 2013 10th Workshop on}, author={Hoang, Manh Kha and Schmitz, Sarah and Drueke, Christian and Vu, Dang Hai Tran and Schmalenstroeer, Joerg and Haeb-Umbach, Reinhold}, year={2013}, pages={1–6} }' chicago: Hoang, Manh Kha, Sarah Schmitz, Christian Drueke, Dang Hai Tran Vu, Joerg Schmalenstroeer, and Reinhold Haeb-Umbach. “Server Based Indoor Navigation Using RSSI and Inertial Sensor Information.” In Positioning Navigation and Communication (WPNC), 2013 10th Workshop On, 1–6, 2013. https://doi.org/10.1109/WPNC.2013.6533263. ieee: 'M. K. Hoang, S. Schmitz, C. Drueke, D. H. T. Vu, J. Schmalenstroeer, and R. Haeb-Umbach, “Server based indoor navigation using RSSI and inertial sensor information,” in Positioning Navigation and Communication (WPNC), 2013 10th Workshop on, 2013, pp. 1–6, doi: 10.1109/WPNC.2013.6533263.' mla: Hoang, Manh Kha, et al. “Server Based Indoor Navigation Using RSSI and Inertial Sensor Information.” Positioning Navigation and Communication (WPNC), 2013 10th Workshop On, 2013, pp. 1–6, doi:10.1109/WPNC.2013.6533263. short: 'M.K. Hoang, S. Schmitz, C. Drueke, D.H.T. Vu, J. Schmalenstroeer, R. Haeb-Umbach, in: Positioning Navigation and Communication (WPNC), 2013 10th Workshop On, 2013, pp. 1–6.' date_created: 2019-07-12T05:28:51Z date_updated: 2023-10-26T08:09:36Z department: - _id: '54' doi: 10.1109/WPNC.2013.6533263 keyword: - SQL - navigation - smart phones - wireless LAN - RSSI - SQL database - complete multilevel office building - inertial sensor information - inertial smartphone sensors - map renderer - received signal strength index information - relative position estimates - server based indoor navigation - step detection - wireless-LAN access points - Smartphone - fingerprint - indoor navigation - map tile language: - iso: eng main_file_link: - open_access: '1' url: https://groups.uni-paderborn.de/nt/pubs/2013/HoScDrTrScHa2013.pdf oa: '1' page: 1-6 publication: Positioning Navigation and Communication (WPNC), 2013 10th Workshop on quality_controlled: '1' related_material: link: - description: Poster relation: supplementary_material url: https://groups.uni-paderborn.de/nt/pubs/2013/HoScDrTrScHa2013_Poster.pdf status: public title: Server based indoor navigation using RSSI and inertial sensor information type: conference user_id: '460' year: '2013' ... --- _id: '11817' abstract: - lang: eng text: In this paper we present a modified hidden Markov model (HMM) for the fusion of received signal strength index (RSSI) information of WiFi access points and relative position information which is obtained from the inertial sensors of a smartphone for indoor positioning. Since the states of the HMM represent the potential user locations, their number determines the quantization error introduced by discretizing the allowable user positions through the use of the HMM. To reduce this quantization error we introduce â??pseudoâ?? states, whose emission probability, which models the RSSI measurements at this location, is synthesized from those of the neighboring states of which a Gaussian emission probability has been estimated during the training phase. The experimental results demonstrate the effectiveness of this approach. By introducing on average two pseudo states per original HMM state the positioning error could be significantly reduced without increasing the training effort. author: - first_name: Manh Kha full_name: Hoang, Manh Kha last_name: Hoang - first_name: Joerg full_name: Schmalenstroeer, Joerg id: '460' last_name: Schmalenstroeer - first_name: Christian full_name: Drueke, Christian last_name: Drueke - 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: 'Hoang MK, Schmalenstroeer J, Drueke C, Tran Vu DH, Haeb-Umbach R. A Hidden Markov Model for Indoor User Tracking Based on WiFi Fingerprinting and Step Detection. In: 21th European Signal Processing Conference (EUSIPCO 2013). ; 2013.' apa: Hoang, M. K., Schmalenstroeer, J., Drueke, C., Tran Vu, D. H., & Haeb-Umbach, R. (2013). A Hidden Markov Model for Indoor User Tracking Based on WiFi Fingerprinting and Step Detection. 21th European Signal Processing Conference (EUSIPCO 2013). bibtex: '@inproceedings{Hoang_Schmalenstroeer_Drueke_Tran Vu_Haeb-Umbach_2013, title={A Hidden Markov Model for Indoor User Tracking Based on WiFi Fingerprinting and Step Detection}, booktitle={21th European Signal Processing Conference (EUSIPCO 2013)}, author={Hoang, Manh Kha and Schmalenstroeer, Joerg and Drueke, Christian and Tran Vu, Dang Hai and Haeb-Umbach, Reinhold}, year={2013} }' chicago: Hoang, Manh Kha, Joerg Schmalenstroeer, Christian Drueke, Dang Hai Tran Vu, and Reinhold Haeb-Umbach. “A Hidden Markov Model for Indoor User Tracking Based on WiFi Fingerprinting and Step Detection.” In 21th European Signal Processing Conference (EUSIPCO 2013), 2013. ieee: M. K. Hoang, J. Schmalenstroeer, C. Drueke, D. H. Tran Vu, and R. Haeb-Umbach, “A Hidden Markov Model for Indoor User Tracking Based on WiFi Fingerprinting and Step Detection,” 2013. mla: Hoang, Manh Kha, et al. “A Hidden Markov Model for Indoor User Tracking Based on WiFi Fingerprinting and Step Detection.” 21th European Signal Processing Conference (EUSIPCO 2013), 2013. short: 'M.K. Hoang, J. Schmalenstroeer, C. Drueke, D.H. Tran Vu, R. Haeb-Umbach, in: 21th European Signal Processing Conference (EUSIPCO 2013), 2013.' date_created: 2019-07-12T05:28:50Z date_updated: 2023-10-26T08:09:45Z department: - _id: '54' language: - iso: eng main_file_link: - open_access: '1' url: https://groups.uni-paderborn.de/nt/pubs/2013/HoScDrTrHa2013.pdf oa: '1' publication: 21th European Signal Processing Conference (EUSIPCO 2013) quality_controlled: '1' related_material: link: - description: Poster relation: supplementary_material url: https://groups.uni-paderborn.de/nt/pubs/2013/HoScDrTrHa2013_Poster.pdf status: public title: A Hidden Markov Model for Indoor User Tracking Based on WiFi Fingerprinting and Step Detection type: conference user_id: '460' year: '2013' ...