Keyphrases
- tree structure
- tree structured data
- parse tree
- natural language
- tree structures
- tree models
- phylogenetic trees
- tree search
- structured data
- b tree
- binary tree
- context free grammars
- wide coverage
- natural language processing
- tree structured patterns
- tree adjoining grammar
- natural language parsing
- speech understanding
- database
- tree construction
- index structure
- wordnet
- information retrieval
- real world