Passage Reranking for Question Answering Using Syntactic Structures and Answer Types.
Elif AktolgaJames AllanDavid A. SmithPublished in: ECIR (2011)
Keyphrases
- question answering
- question classification
- syntactic structures
- question answering systems
- natural language
- passage retrieval
- qa systems
- information retrieval
- natural language questions
- syntactic information
- information extraction
- candidate answers
- cross language
- answer extraction
- named entities
- natural language processing
- answering questions
- question answer pairs
- relation extraction
- semantic roles
- feature weighting
- search engine
- artificial intelligence