Information retrieval for question answering a SIGIR 2004 workshop.
Robert J. GaizauskasMark HeppleMark A. GreenwoodPublished in: SIGIR Forum (2004)
Keyphrases
- question answering
- information retrieval
- information extraction
- passage retrieval
- named entities
- cross language
- information retrieval systems
- question classification
- query expansion
- qa clef
- relevant documents
- document collections
- syntactic information
- natural language questions
- language modeling
- information access
- sentence retrieval
- question answering systems
- text retrieval
- learning to rank
- retrieval model
- test collection
- data mining
- qa systems
- document retrieval
- wordnet
- natural language processing
- open domain question answering