Keyphrases
- question answering
- benchmark datasets
- information retrieval
- syntactic information
- text summarization
- information extraction
- textual entailment recognition
- semantic parsing
- natural language
- natural language processing
- text retrieval
- cross language
- question classification
- free text
- named entities
- qa clef
- open domain question answering
- text mining
- semantic roles
- question answering systems
- passage retrieval
- text documents
- answer validation
- question answer pairs
- natural language questions
- relation extraction
- sentence retrieval
- candidate answers
- keywords
- search engine