Semantic query expansion and context-based discriminative term modeling for spoken document retrieval.
Tsung-wei TuHung-yi LeeYu-Yu ChouLin-Shan LeePublished in: ICASSP (2012)
Keyphrases
- query expansion
- spoken document retrieval
- query expansion methods
- expansion terms
- information retrieval
- query terms
- information retrieval systems
- retrieval effectiveness
- language model
- pseudo relevance feedback
- relevance model
- language modeling
- text retrieval
- out of vocabulary
- relevant documents
- relevance feedback
- retrieval model
- automatic query expansion
- test collection
- query translation
- broadcast news
- natural language
- machine learning
- cross language
- speech recognition
- retrieved documents
- vector space model
- machine translation
- image retrieval
- visual features
- active learning
- text mining