Keyphrases
- semantic web
- question answering
- natural language
- information retrieval
- passage retrieval
- knowledge representation
- information extraction
- named entities
- linked data
- relation extraction
- natural language processing
- question answering systems
- knowledge management
- description logics
- qa clef
- natural language questions
- semi structured
- web services
- artificial intelligence
- answer extraction
- data mining
- database