Keyphrases
- question answering
- information retrieval
- cross language
- information extraction
- natural language processing
- question classification
- natural language
- question answering systems
- visual features
- named entities
- answer validation
- open domain question answering
- image database
- visual information
- syntactic information
- natural language questions
- high level
- passage retrieval
- relation extraction
- qa systems
- low level
- semantic roles
- answering questions
- candidate answers
- visual data
- qa clef
- image retrieval
- textual entailment recognition
- video sequences