Evaluation of Complex Temporal Questions in CLEF-QA.
Estela SaqueteJosé Luis Vicedo GonzálezPatricio Martínez-BarcoRafael MuñozFernando LlopisPublished in: CLEF (2004)
Keyphrases
- question answering
- qa systems
- qa clef
- evaluation campaigns
- spatio temporal
- open domain
- question answering systems
- complex systems
- high level
- information retrieval
- question answer
- answer extraction
- natural language questions
- cross language
- temporal constraints
- temporal reasoning
- speech transcripts
- query expansion
- candidate answers
- question classification
- natural language processing
- open domain question answering
- passage retrieval
- scientific data
- temporal patterns
- evaluation metrics
- spatial and temporal
- image sequences