The University of Sheffield's TREC 2004 QA Experiments.
Robert J. GaizauskasMark A. GreenwoodMark HeppleIan RobertsHoracio SaggionPublished in: TREC (2004)
Keyphrases
- question answering
- information retrieval
- question answering systems
- question classification
- qa clef
- qa systems
- natural language
- information extraction
- test collection
- retrieval effectiveness
- cross language
- hong kong
- passage retrieval
- stanford university
- open domain question answering
- ir evaluation
- answer validation
- pseudo relevance feedback
- natural language processing
- case study
- e learning
- state university
- ad hoc retrieval
- computer science
- machine learning
- biomedical information retrieval
- neural network