Wikipedia Article Content Based Query Expansion in IR4QA System.
Maofu LiuBin ZhouLiwen QiZilou ZhangPublished in: NTCIR (2010)
Keyphrases
- query expansion
- wikipedia articles
- relevance feedback
- passage retrieval
- information retrieval
- information retrieval systems
- question answering
- retrieval effectiveness
- image retrieval
- semantic relatedness
- text retrieval
- retrieval model
- pseudo relevance feedback
- ad hoc retrieval
- language modeling
- language model
- relevant documents
- document ranking
- multimedia
- link structure
- anchor text
- query terms
- search queries
- document retrieval
- low level features
- natural language processing
- web pages