Answer extraction based on query expansion in Chinese question answering system.
Keliang JiaYongle SunZhinuo LiPublished in: NLPKE (2008)
Keyphrases
- query expansion
- answer extraction
- question answering
- cross lingual
- language modeling
- text summarization
- information retrieval
- cross language
- text retrieval
- information retrieval systems
- qa clef
- retrieval effectiveness
- semantic roles
- syntactic information
- passage retrieval
- language model
- pseudo relevance feedback
- relevance feedback
- retrieval model
- relevant documents
- information extraction
- natural language
- linguistic features
- natural language processing
- information access
- query terms
- document retrieval
- retrieved documents
- question answering systems
- query translation
- text classification
- retrieval systems
- relevance ranking
- probabilistic model