Keyphrases
- question answering
- natural language processing
- information retrieval
- question classification
- natural language
- qa clef
- open domain question answering
- sentence retrieval
- cross language
- information extraction
- visual information
- passage retrieval
- named entities
- natural language questions
- visual features
- question answering systems
- syntactic information
- semantic roles
- relation extraction
- answer validation
- textual entailment recognition
- answer extraction
- low level
- answering questions
- sql queries