A Pattern Based Approach to Factoid, List and Definition Question Answering.
Mark A. GreenwoodHoracio SaggionPublished in: RIAO (2004)
Keyphrases
- question answering
- information retrieval
- information extraction
- natural language processing
- open domain
- natural language
- passage retrieval
- named entities
- syntactic information
- question classification
- natural language questions
- cross language
- machine learning
- sentence retrieval
- relation extraction
- evaluation metrics
- semantic roles
- ranked list
- visual information
- knowledge base