Keyphrases
- collaborative filtering
- recommender systems
- neighborhood structure
- graph representation
- matrix factorization
- neighborhood graph
- graph structure
- minimal spanning tree
- image processing
- graph theory
- directed graph
- data aggregation
- graph model
- spanning tree
- data sparsity
- user preferences
- affinity graph
- user profiles
- directed acyclic graph
- graph mining
- graph databases
- connected components
- graph data
- structured data
- graph based algorithm