Using Grammatical Relations, Answer Frequencies and the World Wide Web for TREC Question Answering.
Sabine BuchholzPublished in: TREC (2001)
Keyphrases
- question answering
- question answering systems
- question classification
- natural language questions
- qa systems
- answer validation
- candidate answers
- answering questions
- answer extraction
- question answer pairs
- information retrieval
- information extraction
- passage retrieval
- qa clef
- cross language
- syntactic information
- natural language processing
- sentence retrieval
- named entities
- natural language
- web pages
- machine learning
- open domain question answering
- correct answers
- relation extraction