Hierarchical Physician Recommendation via Diversity-enhanced Matrix Factorization.
Hao WangShuai DingYeqing LiXiaojian LiYoutao ZhangPublished in: ACM Trans. Knowl. Discov. Data (2021)
Keyphrases
- matrix factorization
- collaborative filtering
- recommender systems
- item recommendation
- data sparsity
- cold start problem
- latent factor models
- low rank
- nonnegative matrix factorization
- missing data
- recommendation systems
- implicit feedback
- factor analysis
- negative matrix factorization
- factorization methods
- personalized ranking
- rating prediction
- variational bayesian
- probabilistic matrix factorization
- tensor factorization
- factorization method
- data matrix
- transfer learning
- latent factors
- stochastic gradient descent
- user preferences
- user ratings
- user profiles
- personalized recommendation
- user feedback
- clustering algorithm