The Role of Lexico-Semantic Feedback in Open-Domain Textual Question-Answering.
Sanda M. HarabagiuDan I. MoldovanMarius PascaRada MihalceaMihai SurdeanuRazvan C. BunescuRoxana GirjuVasile RusPaul MorarescuPublished in: ACL (2001)
Keyphrases
- question answering
- open domain
- natural language
- information extraction
- question answering systems
- named entities
- information retrieval
- natural language processing
- cross language
- free text
- passage retrieval
- qa clef
- multimedia
- qa systems
- answer extraction
- natural language questions
- keywords
- text mining
- co occurrence
- metadata
- feature selection
- machine learning