Keyphrases
- regular expressions
- tree width
- graph databases
- structural properties
- graph data
- tree decomposition
- pattern matching
- query language
- graph theory
- finite automata
- conjunctive queries
- tree automata
- query evaluation
- regular path queries
- shortest path
- string matching
- finite state machines
- exact and approximate
- relational structures
- constraint networks
- graph matching
- xml schema
- matching algorithm
- parallel processing
- computationally challenging
- graph mining
- decomposition method
- database systems