Keyphrases
- question answering
- information extraction
- natural language
- question classification
- information retrieval
- natural language processing
- natural language questions
- qa clef
- cross language
- passage retrieval
- syntactic information
- test set
- named entities
- question answering systems
- qa systems
- sentence retrieval
- speech transcripts
- semantic roles
- relation extraction
- multi modal
- knowledge representation