Keyphrases
- question answering
- knowledge extraction
- knowledge discovery
- information retrieval
- question classification
- qa clef
- named entities
- natural language processing
- cross language
- information extraction
- question answering systems
- visual features
- data mining
- visual information
- syntactic information
- natural language
- sentence retrieval
- natural language questions
- relation extraction
- passage retrieval
- multi modal
- semantic roles
- low level
- expert systems
- multimedia
- real world
- structured data
- image classification
- answer extraction