Density-Ratio Based Personalised Ranking from Implicit Feedback.
Riku TogashiMasahiro KatoMayu OtaniShin'ichi SatohPublished in: WWW (2021)
Keyphrases
- implicit feedback
- recommender systems
- personalized ranking
- density ratio
- eye tracking
- user feedback
- user behavior
- web search
- matrix factorization
- collaborative filtering
- relevance feedback
- explicit feedback
- contextual information
- user preferences
- least squares
- search result
- density ratio estimation
- context aware
- semi parametric
- relevance judgments
- personalized recommendation
- search logs
- user interaction
- learning to rank
- ranking functions
- query expansion
- user profiles
- outlier detection