What Can Be Learned from Previously Answered Questions? A Corpus-Based Approach to Question Answering.
Marcin SkowronKenji ArakiPublished in: Intelligent Information Systems (2004)
Keyphrases
- question answering
- open domain
- question answer pairs
- question answering systems
- qa systems
- natural language questions
- answering questions
- candidate answers
- information extraction
- semantic roles
- qa clef
- natural language processing
- natural language
- information retrieval
- question classification
- answer extraction
- open domain question answering
- passage retrieval
- named entities
- syntactic information
- relation extraction
- semantic parsing
- cross language
- test collection
- speech transcripts
- relational databases
- keywords