An answer passage retrieval strategy for web-based question answering.
Xin LiDawei HuTianyong HaoEnhong ChenLiu WenyinPublished in: Infoscale (2007)
Keyphrases
- question answering
- retrieval strategies
- question classification
- natural language questions
- question answering systems
- qa systems
- information retrieval
- answer extraction
- answer validation
- candidate answers
- answering questions
- passage retrieval
- document retrieval
- question answer pairs
- retrieval effectiveness
- natural language
- qa clef
- information extraction
- text retrieval
- natural language processing
- cross language
- structured queries
- semantic roles
- syntactic information
- test collection
- relation extraction
- multimedia
- named entities
- retrieval systems
- active learning
- machine learning
- retrieval model
- semantic network