Keyphrases
- question answering
- information retrieval
- qa clef
- question classification
- natural language
- natural language processing
- information extraction
- passage retrieval
- natural language questions
- cross language
- visual features
- named entities
- semantic roles
- open domain question answering
- sentence retrieval
- question answering systems
- visual information
- syntactic information
- relation extraction
- candidate answers
- low level
- multi modal