Keyphrases
- context free grammars
- tree adjoining
- natural language
- phrase structure
- context free
- visual languages
- syntactic pattern recognition
- tree bank
- natural language processing
- grammar induction
- stochastic context free grammars
- parse tree
- graph grammars
- natural language parsing
- grammatical inference
- context sensitive
- probabilistic context free grammars
- stochastic grammar
- finite state automata
- context dependent
- speech understanding
- context free languages
- linguistic analysis
- semantic parsing
- natural language sentences
- error recovery
- noun phrases
- finite state
- information extraction