Improving Question Answering Using Named Entity Recognition.
Antonio ToralElisa NogueraFernando LlopisRafael MuñozPublished in: NLDB (2005)
Keyphrases
- question answering
- named entity recognition
- named entities
- information extraction
- natural language processing
- text summarization
- relation extraction
- passage retrieval
- information retrieval
- natural language
- conditional random fields
- cross language
- text documents
- semantic role labeling
- qa clef
- maximum entropy
- question answering systems
- noun phrases
- linguistic features
- co occurrence
- text mining
- semi supervised
- answer extraction
- natural language questions