Keyphrases
- context free grammars
- tree adjoining
- context free
- phrase structure
- syntactic pattern recognition
- tree bank
- visual languages
- natural language
- parse tree
- grammar induction
- stochastic context free grammars
- graph grammars
- grammatical inference
- natural language processing
- natural language parsing
- stochastic grammar
- natural language sentences
- context sensitive
- production rules
- context free languages
- probabilistic context free grammars
- grammar rules
- tree structures
- speech understanding
- shallow parsing
- machine learning
- inductive inference
- regular expressions
- context dependent
- mildly context sensitive
- syntactic and semantic dependencies
- semantic parsing
- xml schema
- knowledge representation