Keyphrases
- natural language
- context free grammars
- natural language parsing
- word order
- parse tree
- context free
- phrase structure
- natural language sentences
- grammar induction
- graph grammars
- tree bank
- wide coverage
- stochastic context free grammars
- natural language processing
- stochastic grammar
- syntactic pattern recognition
- semantic analysis
- linguistic knowledge
- dependency structure
- formal languages
- context sensitive
- probabilistic context free grammars
- natural language generation
- semantic representation
- machine learning
- knowledge representation
- speech acts
- linguistic analysis
- dependency parsing
- language processing
- conceptual graphs
- incomplete data
- missing data
- question answering
- information extraction
- syntactic analysis
- grammar rules
- language understanding
- semantic role labeling
- tree structures
- context dependent
- tree adjoining grammar