Overview of the NTCIR-7 ACLIA IR4QA Task.
Tetsuya SakaiNoriko KandoChuan-Jie LinTeruko MitamuraHideki ShimaDonghong JiKuang-hua ChenEric NybergPublished in: NTCIR (2008)
Keyphrases
- ir evaluation
- patent retrieval
- test collection
- information retrieval
- question answering
- web retrieval
- passage retrieval
- retrieval effectiveness
- evaluation framework
- relevance assessments
- graded relevance
- retrieval model
- document retrieval
- query expansion
- relevance feedback
- patent documents
- text retrieval
- statistical significance
- cross language
- evaluation metrics
- open domain
- language model
- cross language information retrieval
- question classification
- information access
- retrieval systems
- information retrieval systems
- prior art
- search engine
- query translation
- evaluation methodology
- search tasks
- average precision
- ranking functions
- text categorization
- text classification
- open domain question answering