Keyphrases
- question answering
- information extraction
- information retrieval
- question classification
- natural language processing
- natural language
- cross language
- natural language questions
- passage retrieval
- domain specific
- sentence retrieval
- named entities
- text mining
- question answering systems
- open domain question answering
- semantic roles
- qa clef
- structured data
- relation extraction
- knowledge representation
- answering questions