Keyphrases
- context free grammars
- natural language
- natural language processing
- context free
- tree adjoining
- syntactic pattern recognition
- phrase structure
- graph matching
- visual languages
- weighted graph
- directed graph
- parse tree
- tree bank
- grammar induction
- stochastic context free grammars
- graph structure
- high speed
- natural language parsing
- dependency structure
- tree grammars
- graph grammars
- graph theoretic
- graph theory