Structured use of external knowledge for event-based open domain question answering.
Hui YangTat-Seng ChuaShuguang WangChun-Keat KohPublished in: SIGIR (2003)
Keyphrases
- external knowledge
- open domain question answering
- domain knowledge
- wordnet
- question answering
- text categorization
- document clustering
- textual information
- structured data
- bag of words
- semantic features
- knowledge sources
- information retrieval
- action recognition
- effective retrieval
- web directories
- domain specific
- natural language