Learning Named Entity Hyponyms for Question Answering.
Paul McNameeRion SnowPatrick SchoneJames MayfieldPublished in: IJCNLP (2008)
Keyphrases
- question answering
- named entities
- information extraction
- natural language processing
- relation extraction
- learning algorithm
- named entity recognition
- co occurrence
- information retrieval
- question classification
- cross language
- natural language
- active learning
- natural language questions
- qa clef
- question answering systems
- reinforcement learning
- text documents
- feature space
- unsupervised learning
- passage retrieval
- semantic roles
- text mining
- semi supervised