Keyphrases
- test collection
- web retrieval
- suffix tree
- patent retrieval
- cross language information retrieval
- evaluation metrics
- cross lingual information retrieval
- ir evaluation
- query translation
- trec web
- graded relevance
- english chinese
- evaluation framework
- retrieval effectiveness
- co occurrence
- artificial intelligence
- prior art
- bi directional
- search tasks
- decision trees
- information retrieval