Automatic Estimation of Word Significance oriented for Speech-based Information Retrieval.
Takashi ShichiriHiroaki NanjoTakehiko YoshimiPublished in: IJCNLP (2008)
Keyphrases
- information retrieval
- spoken document retrieval
- automatic indexing
- term weighting
- language model
- n gram
- speech recognition systems
- speech recognition
- text input
- information retrieval systems
- word sense disambiguation
- multi lingual
- document collections
- co occurrence
- speech recognizer
- speech transcripts
- information access
- search engine
- language modeling
- keywords
- text retrieval
- retrieval systems
- question answering
- word recognition
- relevant documents
- english text
- word error rate
- lexical features
- natural language processing
- speech music discrimination
- prosodic features
- recognition errors
- probabilistic model
- text mining
- spoken language
- speech signal
- vector space model
- retrieval effectiveness