Keyphrases
- question answering
- domain adaptation
- question classification
- question answering systems
- qa clef
- answer extraction
- qa systems
- natural language questions
- answer validation
- candidate answers
- answering questions
- question answer pairs
- semi supervised
- multiple sources
- labeled data
- cross domain
- named entities
- information extraction
- test data
- transfer learning
- natural language
- semi supervised learning
- natural language processing
- passage retrieval
- information retrieval
- unlabeled data
- sentiment classification
- target domain
- document classification
- cross lingual
- active learning
- databases
- training data