Keyphrases
- graph construction
- cold start
- recommender systems
- k nearest neighbor
- collaborative filtering
- knn
- data sparsity
- semi supervised learning
- semi supervised
- tag recommendation
- personalized recommendation
- implicit feedback
- dimensionality reduction
- semi supervised classification
- user preferences
- spectral clustering
- nearest neighbor
- user ratings
- label propagation
- multi label
- matrix factorization
- recommendation systems
- data sets
- unlabeled data
- user interests
- data clustering
- eye tracking
- pairwise
- feature extraction
- data mining
- neural network