Feature Analysis in Microblog Retrieval Based on Learning to Rank.
Zhongyuan HanXuwei LiMuyun YangHaoliang QiSheng LiPublished in: NLPCC (2013)
Keyphrases
- learning to rank
- feature analysis
- information retrieval
- document retrieval
- retrieval systems
- test collection
- query dependent
- ranking functions
- loss function
- evaluation measures
- ranking svm
- retrieval model
- relevance feedback
- information retrieval systems
- face recognition
- collaborative filtering
- direct optimization
- web search engines
- discriminant analysis
- document collections
- retrieval effectiveness
- language model
- average precision
- search engine
- text retrieval
- query expansion
- document ranking
- retrieval quality
- feature extraction
- learning to rank algorithms
- web search
- ranking models
- image retrieval