DCU's Experiments for the NTCIR-8 IR4QA Task.
Jinming MinJie JiangJohannes LevelingGareth J. F. JonesAndy WayPublished in: NTCIR (2010)
Keyphrases
- ir evaluation
- test collection
- patent retrieval
- information retrieval
- web retrieval
- question answering
- passage retrieval
- retrieval effectiveness
- evaluation framework
- retrieval model
- graded relevance
- relevance assessments
- information retrieval systems
- prior art
- open domain question answering
- dublin city university
- query expansion
- text retrieval
- relevant documents
- qa clef
- language model
- answer extraction
- evaluation metrics
- open domain
- patent documents
- document retrieval
- retrieval systems
- digital libraries
- average precision
- interactive question answering
- cross language ir
- answer validation
- search tasks
- information access
- language modeling
- ranking functions
- search engine