Approximately optimizing NDCG using pair-wise loss.
Xiao-Bo JinGuang-Gang GengGuo-Sen XieKaizhu HuangPublished in: Inf. Sci. (2018)
Keyphrases
- pairwise
- direct optimization
- directly optimize
- learning to rank
- multi class
- evaluation measures
- semi supervised
- graph matching
- test set
- ranking functions
- genetic algorithm
- optimization methods
- higher order
- retrieval systems
- query expansion
- evaluation metrics
- retrieval effectiveness
- data sets
- probabilistic model
- information systems
- learning algorithm
- information retrieval
- neural network