A System for Answering Non-Factoid Japanese Questions by Using Passage Retrieval Weighted Based on Type of Answer.
Masaki MurataSachiyo TsukawakiToshiyuki KanamaruQing MaHitoshi IsaharaPublished in: NTCIR (2007)
Keyphrases
- passage retrieval
- question answering
- qa systems
- question answering systems
- answer extraction
- document retrieval
- correct answers
- open domain
- language model
- information retrieval
- audio visual
- retrieval model
- evaluation methodology
- syntactic information
- query expansion
- retrieval systems
- quantitative evaluation
- natural language processing
- information extraction
- natural language
- language modeling
- semantic relatedness
- probabilistic model
- text retrieval
- artificial intelligence