Keyphrases
- question answering
- natural language
- knowledge base
- conversational agent
- natural language processing
- knowledge representation
- question classification
- cross language
- syntactic information
- information extraction
- named entities
- information retrieval
- relation extraction
- qa clef
- natural language questions
- multi modal
- passage retrieval
- logic programming
- wordnet
- expert systems
- answer extraction
- sentence retrieval
- open domain question answering
- textual entailment recognition
- candidate answers