NTUBROWS System for NTCIR-7 Information Retrieval for Question Answering.
I-Chien LiuLun-Wei KuKuang-hua ChenHsin-Hsi ChenPublished in: NTCIR (2008)
Keyphrases
- question answering
- information retrieval
- test collection
- passage retrieval
- information extraction
- question classification
- named entities
- natural language processing
- cross language
- sentence retrieval
- relevant documents
- natural language
- retrieval model
- open domain question answering
- retrieval effectiveness
- question answering systems
- natural language questions
- retrieval systems
- document retrieval
- text retrieval
- language model
- syntactic information
- search engine
- vector space model
- document collections
- text categorization
- information retrieval systems
- answer extraction
- co occurrence
- knowledge base