Keyphrases
- collaborative filtering
- matrix factorization
- recommender systems
- graph model
- graph theory
- user preferences
- recommendation systems
- dependency graph
- directed graph
- data sparsity
- graph structure
- structured data
- graph theoretic
- random walk
- information filtering
- neural network
- graph partitioning
- graphical representation
- bipartite graph
- graph search
- graph structures
- cold start problem
- graph based algorithm
- neighbor selection
- pearson correlation coefficient
- web page recommendation