Keyphrases
- context free grammars
- visual languages
- natural language
- context free
- tree grammars
- grammatical inference
- mildly context sensitive
- phrase structure
- natural language processing
- neural network
- context sensitive
- relational databases
- grammar rules
- finite state automata
- feature selection
- grammar induction
- syntactic pattern recognition
- tree bank
- databases
- stochastic grammar
- data sets