TY - CHAP A1 - Tschöpe, Constanze A1 - Hentschel, Dieter A1 - Wolff, Matthias A1 - Eichner, Matthias A1 - Hoffmann, Rüdiger T1 - Classification of non-speech acoustic signals using structure models T2 - Proceedings, 2004 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), May 17 - 21, 2004, Montreal, Canada, vol. 5 N2 - Non-speech acoustic signals are widely used as the input of systems for non-destructive testing. In this rapidly growing field, the signals have an increasing complexity leading to the fact that powerful models are required. Methods like DTW and HMM, which are established in speech recognition, have been successfully used but are not sufficient in all cases. We propose the application of generalized structured Markov graphs (SMG). We describe a task independent structure learning technique which automatically adapts the models to the structure of the test signals. We demonstrate that our solution outperforms hand-tuned HMM structures in terms of class discrimination by two case studies using data from real applications. Y1 - 2004 SN - 0-7803-8484-9 U6 - https://doi.org/10.1109/ICASSP.2004.1327195 VL - 5 SP - 653 EP - 656 PB - IEEE Operations Center CY - Piscataway, NJ ER - TY - CHAP A1 - Hoffmann, Rüdiger A1 - Eichner, Matthias A1 - Kordon, Ulrich A1 - Tschöpe, Constanze A1 - Wolff, Matthias ED - Hentschel, Christian T1 - Anwendung von Spracherkennungsalgorithmen auf nichtsprachliche akustische Signale T2 - Sprachsignalverarbeitung : Analyse und Anwendungen ; zum 65. Geburtstag von Klaus Fellbaum Y1 - 2007 SN - 978-3-940046-02-4 SP - 46 EP - 57 PB - TUDpress CY - Dresden ER -