The Report on Subtopic Mining and Document Ranking of NTCIR-9 Intent Task.
Wei-Lun XiaoShih-Hung WuLiang-Pu ChenTsun KuPublished in: NTCIR (2011)
Keyphrases
- document ranking
- test collection
- relevant documents
- relevance assessments
- language model
- retrieved documents
- information retrieval
- evaluation metrics
- document retrieval
- query expansion
- search queries
- retrieval effectiveness
- data mining
- text retrieval
- pseudo relevance feedback
- relevance judgments
- retrieval model
- ranked list
- document collections
- average precision
- information retrieval systems
- knowledge discovery
- retrieval systems
- language modeling
- relevance model
- graded relevance
- precision and recall
- learning to rank
- bayesian networks