Keyphrases
- question answering
- natural language processing
- information extraction
- visual information
- qa clef
- named entities
- passage retrieval
- natural language
- natural language questions
- question classification
- information retrieval
- open domain question answering
- qa systems
- syntactic information
- relation extraction
- visual features
- answer validation
- visual data
- semantic roles
- question answering systems
- cross language
- textual entailment recognition
- video search
- candidate answers
- automatically generated
- artificial intelligence