Natural Language Based Reformulation Resource and Wide Exploitation for Question Answering.
Ulf HermjakobAbdessamad EchihabiDaniel MarcuPublished in: TREC (2002)
Keyphrases
- question answering
- natural language
- natural language processing
- natural language questions
- question answering systems
- information extraction
- question classification
- named entities
- qa clef
- cross language
- information retrieval
- machine learning
- syntactic information
- relation extraction
- open domain question answering
- knowledge representation
- passage retrieval
- semantic representation
- semantic analysis
- language processing
- conceptual graphs
- answer extraction
- multi modal
- textual entailment recognition