Language model switching based on topic detection for dialog speech recognition.
Ian R. LaneTatsuya KawaharaTomoko MatsuiPublished in: ICASSP (1) (2003)
Keyphrases
- speech recognition
- language model
- topic detection
- document level
- language modeling
- information retrieval
- document retrieval
- query expansion
- document clustering
- probabilistic model
- n gram
- automatic speech recognition
- document collections
- text classification
- test collection
- retrieval model
- text data
- vector space model
- speech signal
- natural language
- pseudo relevance feedback
- mixture model
- pattern recognition
- relevance model
- word error rate
- web documents
- hidden markov models
- keywords
- feature extraction