TY - CHAP A1 - Fischer, Julia A1 - Haas, Jürgen A1 - Nöth, Elmar A1 - Niemann, Heinrich A1 - Deinzer, Frank T1 - Empowering Knowledge Based Speech Understanding through Statistics T2 - 5th Interational Conference on Spoken Language Processing Y1 - 1998 UR - https://www.academia.edu/download/42129006/Empowering_Knowledge_Based_Speech_Unders20160205-16348-1ph4ycn.pdf VL - 5 SP - 2231 EP - 2235 ER - TY - JOUR A1 - Deinzer, Frank A1 - Fischer, Julia A1 - Ahlrichs, Ulrike A1 - Nöth, Elmar T1 - Learning of Domain Dependent Knowledge in Semantic Networks JF - Eurospeech N2 - For an effcient linguistic analysis of spoken queries a lot of domain specific knowledge is needed and usually has to be entered manually into the knowledge base of each domain. This makes the adaption of dialogue systems which base on explicit knowledge representation to new domains a very costly pro cedure. We use a frequency based statistical method combined with general hidden markov models in order to learn domain specific knowledge within a semantic network formalism. As a framework we use a dialogue system for German train timetable information. By means of experiments we show that our statistical approach is not only able to reach, but even outperforms previous results with manually entered restrictions. Y1 - 1999 UR - https://www.isca-speech.org/archive/pdfs/eurospeech_1999/deinzer99_eurospeech.pdf VL - 5 SP - 1987 EP - 1990 ER -