Dialogue Speech Recognition by Combining Hierarchical Topic Classification and Language Model Switching.
Ian R. LaneTatsuya KawaharaTomoko MatsuiSatoshi NakamuraPublished in: IEICE Trans. Inf. Syst. (2005)
Keyphrases
- speech recognition
- language model
- pattern recognition
- language modeling
- document retrieval
- n gram
- probabilistic model
- retrieval model
- information retrieval
- automatic speech recognition
- classification accuracy
- speech signal
- machine learning
- word error rate
- query terms
- query expansion
- test collection
- hidden markov models
- noisy environments
- speech recognition systems
- handwriting recognition
- speaker independent
- image classification
- mixture model
- text classification
- support vector machine
- speaker identification
- feature selection
- model selection
- feature extraction
- unsupervised learning
- keywords
- spoken language
- neural network