Keyphrases
- information retrieval
- ordered trees
- unordered trees
- semi structured data
- tree structures
- tree automata
- mining frequent
- text mining
- structured data
- semi structured
- web mining
- semistructured data
- equivalence class
- graphical representation
- tree patterns
- sequential patterns
- tree structure
- tree structured data
- labeled trees
- equivalence classes
- xml data
- multi dimensional
- xml documents