Keyphrases
- question answering
- incomplete knowledge
- information retrieval
- question classification
- natural language processing
- information extraction
- cross language
- syntactic information
- natural language
- description logics
- qa clef
- named entities
- relation extraction
- passage retrieval
- natural language questions
- textual entailment recognition
- open domain question answering
- candidate answers
- sentence retrieval
- question answering systems
- multi modal
- artificial intelligence