Keyphrases
- collaborative filtering
- recommender systems
- making recommendations
- recommendation quality
- user preferences
- recommendation systems
- cold start problem
- online dating
- collaborative filtering algorithms
- content based filtering
- cold start
- matrix factorization
- personalized recommendation
- feature set
- collaborative filtering recommendation
- recommendation algorithms
- information filtering
- random walk
- latent factor models
- feature vectors
- graph structure
- product recommendation
- collaborative recommendation
- graph theory
- data sparsity
- user ratings
- graph theoretic
- graph representation
- vector representation
- weighted graph
- active user
- image features
- demographic information
- preprocessing stage
- item recommendation
- user similarity
- prediction accuracy
- spanning tree
- link analysis