Keyphrases
- graph representation
- query rewriting
- structured data
- directed graph
- graph model
- graph structure
- regular path queries
- graph databases
- graph theory
- random walk
- weighted graph
- directed acyclic graph
- materialized views
- query answering
- connected components
- database
- answering queries using views
- queries using views
- tree patterns
- bipartite graph
- conjunctive queries
- website