Two Phase Indexes Based Passage Retrieval in Biomedical Texts.
Ran ChenHongfei LinZhihao YangPublished in: LSMS (1) (2007)
Keyphrases
- passage retrieval
- question answering
- document retrieval
- language model
- information extraction
- audio visual
- query expansion
- information retrieval
- natural language
- retrieval model
- text mining
- retrieval systems
- semantic relatedness
- quantitative evaluation
- relevance feedback
- text documents
- free text
- natural language processing
- visual information
- n gram
- feature space
- keywords
- query processing
- multi modal
- multimedia