Passage retrieval vs. document retrieval for factoid question answering.
Charles L. A. ClarkeEgidio L. TerraPublished in: SIGIR (2003)
Keyphrases
- passage retrieval
- document retrieval
- question answering
- information retrieval
- retrieval model
- language model
- document collections
- text retrieval
- sentence retrieval
- qa systems
- cross language
- relevance feedback
- question answering systems
- natural language
- relevant documents
- natural language processing
- pseudo relevance feedback
- image retrieval
- query terms
- multi modal
- retrieved documents
- syntactic information