Keyphrases
- query graph
- similarity graph
- graph mining
- graph databases
- graph classification
- vector space
- subgraph isomorphism
- subgraph matching
- response time
- graph data
- query evaluation
- data structure
- database
- graph properties
- query processing
- labeled graphs
- subgraph mining
- user queries
- graph theoretic
- range queries
- retrieval systems
- query expansion
- data sources
- relevance feedback
- directed graph
- reachability queries
- graph matching
- maximum clique
- weighted graph
- graph structure
- relational data
- keywords
- social networks