TY - CHAP AU - Meyer auf der Heide, Friedhelm AU - Oesterdiekhoff, Brigitte AU - Wanka, Rolf ID - 16730 SN - 0302-9743 T2 - Automata, Languages and Programming TI - Strongly adaptive token distribution ER - TY - CONF AU - Dietzfelbinger, Martin AU - Meyer auf der Heide, Friedhelm ID - 16731 SN - 0897915992 T2 - Proceedings of the fifth annual ACM symposium on Parallel algorithms and architectures - SPAA '93 TI - Simple, efficient shared memory simulations ER - TY - CHAP AU - Lürwer-Brüggemeier, Katharina AU - Meyer auf der Heide, Friedhelm ID - 16732 SN - 0302-9743 T2 - Lecture Notes in Computer Science TI - Capabilities and complexity of computations with integer division ER - TY - CONF AU - Domik, Gitta ED - D. Franklin, Stephen ED - R. Stubberud, Allen ED - P. Wiedeman, Lyle ID - 16828 T2 - University Education Uses of Visualization in Scientific Computing, Proceedings of the {IFIP} {WG3.2} Working Conference on Visualization in Scientific Computing: Uses in University Education, Irvine, CA, USA, 28-30 July, 1993 TI - Education in Scientific Visualization VL - {A-48} ER - TY - CONF AU - Domik, Gitta ED - Maurer, H. ID - 16906 T2 - Proceedings of ED Media '93 TI - Scientific Visualization ER - TY - JOUR AU - Dellnitz, Michael ID - 17013 JF - Lectures in Applied Mathematics TI - The equivariant Darboux theorem VL - 29 ER - TY - CONF AB - Linear discriminant analysis (LDA) experiments reported previously (ICASSP-92 vol.1, p.13-16), are extended to context-dependent models and speaker-independent large vocabulary continuous speech recognition. Two variants of using mixture densities are compared: state-specific modeling and the monophone-tying approach where densities are shared across the states relevant to the same phoneme. Results are presented on the DARPA Resource Management (RM) task for both speaker-dependent (SD) and speaker-independent (SI) parts. Using triphone models based on LDA and continuous mixture densities, significant improvements have been observed and the following word error rates have been achieved: for the SD part, 7.8% without grammar and 1.5% with word pair; and for the SI part, 17.2% and 4.6%, respectively. These scores are averaged over 1200 SD or SI evaluation sentences and are among the best published so far on the RM database. AU - Aubert, Xavier L. AU - Haeb-Umbach, Reinhold AU - Ney, Hermann ID - 11718 T2 - ICASSP, Minneapolis TI - Continuous Mixture Densities and Linear Discriminant Analysis for Improved Context-Dependent Acoustic Models ER - TY - JOUR AB - To decrease the hazards of using mobile phones while driving, voice processing provides several tools that simplify their use: echo cancellation allows comfortable hands-free conversation, feedback and user guidance by voice allow to operate the phone in eyes-busy situations, and last not least speech recognition frees from keypad data entry to operate the telephone. A comprehensive view of a device incorporating the above mentioned technologies, which has been realized as an add-on for the Philips car telephone family, will be presented. Emphasis is placed on the speech recognition algorithms. Robustness of the algorithms to changing acoustic environment was improved by estimating and subtracting the long-term spectrum. We will show that, if this operation is done recursively, it is equivalent to the high-pass filtering or RASTA (Relative Spectral Approaches) methods recently proposed in the literature. AU - Dobler, Stefan AU - Geller, Dieter AU - Haeb-Umbach, Reinhold AU - Meyer, Peter AU - Ney, Hermann AU - Ruehl, Hans Wilhelm ID - 11749 JF - Speech Communication TI - Design and use of speech recognition algorithms for a mobile radio telephone ER - TY - CONF AB - Four methods were used to reduce the error rate of a continuous-density hidden Markov-model-based speech recognizer on the TI/NIST connected-digits recognition task. Energy thresholding sets a lower limit on the energy in each frequency channel to suppress spurious distortion accumulation caused by random noise. This led to an improvement in error rate by 15%. Spectrum normalization was used to compensate for across-speaker variations, resulting in an additional improvement by 20%. The acoustic resolution was increased up to 32 component densities per mixture. Each doubling of the number of component densities yielded a reduction in error rate by roughly 20%. Linear discriminant analysis was used for improved feature selection. A single class-independent transformation matrix was applied to a large input vector consisting of several adjacent frames, resulting in an improvement by 20% for high acoustic resolution. The final string error rate was 0.84%. AU - Haeb-Umbach, Reinhold AU - Geller, Dieter AU - Ney, Hermann ID - 11788 T2 - ICASSP, Minneapolis TI - Improvements in Connected Digit Recognition Using Linear Discriminant Analysis and Mixture Densities ER - TY - CONF AB - This paper gives a status report of the Philips research system for phoneme-based, large-vocabulary, continuous-speech recognition. Like for many other systems, the recognition architecture is based on an integrated statistical approach. We describe the characteristic features of the system as opposed to other systems: 1. The Viterbi criterion is consistently applied both in training and testing. 2. Continuous mixture densities are used without tying or smoothing. 3. Time-synchronous beam search in connection with a phoneme look-ahead is applied to a tree-organized lexicon. The system has been successfully applied to the American English DARPA RM task. Here, we report experimental results for a German 13 000-word Philips internal dictation task. In addition to the scientific prototype, a PC version has been set up which is described here for the first time. AU - Steinbiss, Volker AU - Ney, Hermann AU - Haeb-Umbach, Reinhold AU - Train, B.-H. AU - Essen, U. AU - Kneser, Reinhard AU - Oerder, Martin AU - Meier, H. G. AU - Aubert, X. AU - Dugast, Christian AU - Geller, Dieter AU - Hoellerbauer, W. AU - Bartosik, H. ID - 11904 T2 - EUROSPEECH, Berlin TI - The Philips Research System for Large-Vocabulary Continuous-Speech Recognition ER - TY - JOUR AU - Domik, Gitta ID - 15045 JF - COMPUTER GRAPHICS-NEW YORK-ASSOCIATION FOR COMPUTING MACHINERY- TI - An Agenda for Education in Scientific Visualization, Visualization'92 Workshop Report VL - 27 ER - TY - JOUR AU - Domik, Gitta ID - 15273 IS - 2 JF - Computers & Graphics SN - 1017-4656 TI - Guidelines for a curriculum in scientific visualization VL - 17 ER - TY - CONF AU - Domik, Gitta AU - Joslyn, C AU - Segura, T ID - 15275 T2 - Proceedings of the Vienna Conference on Human Computer Interaction TI - Macroscopic and Microscopic Aspects of Glyphs ER - TY - JOUR AU - Schmidt, Wolf Gero AU - Srivastava, G P ID - 13857 IS - 49 JF - Journal of Physics: Condensed Matter SN - 0953-8984 TI - Chemisorption of aluminium on GaAs(110) VL - 5 ER - TY - JOUR AU - Schmidt, Wolf Gero AU - Wenzien, Bernd AU - Bechstedt, Friedhelm ID - 13858 IS - 9-10 JF - Czechoslovak Journal of Physics SN - 0011-4626 TI - AB initio calculation of the atomic and electronic structure for Sb adsorbed on GaAs(110) VL - 43 ER - TY - GEN AU - Hellebrand, Sybille AU - Tarnick, Steffen AU - Rajski, Janusz AU - Courtois, Bernard ID - 13081 KW - WORKSHOP TI - Effiziente Erzeugung deterministischer Muster im Selbsttest ER - TY - GEN AU - Hellebrand, Sybille AU - Wunderlich, Hans-Joachim ID - 13082 KW - WORKSHOP TI - Synthesis of Self-Testable Controllers ER - TY - JOUR AU - Platzner, Marco AU - Steger, Christian ID - 13466 JF - Mikroelektronik TI - Erfahrungen mit einer Multi-Signalprozessorarchitektur (TMS320C40) ER - TY - CONF AU - Platzner, Marco AU - Steger, Christian AU - Weiss, Reinhold ID - 13467 T2 - Proceedings of the 4th International Conference on Signal Processing Applications & Technology (ICSPAT) TI - Performance Measurements on a Multi-DSP Architecture with TMS320C40 ER - TY - CONF AU - Lüdeke, H.-P. AU - Maas, Jürgen AU - Fröhleke, Norbert AU - Grotstollen, Horst ID - 30015 T2 - Conference Record of the 1993 IEEE Industry Applications Conference Twenty-Eighth IAS Annual Meeting TI - Controller design for resonant converters by automatable techniques ER -