Keyphrases
- generative model
- natural language
- structural analysis
- data driven
- unsupervised learning
- context free grammars
- context free
- tree grammars
- graph grammars
- linguistic knowledge
- finite state automata
- grammatical inference
- information retrieval
- discriminative classifiers
- human activities
- broad coverage
- word order
- language model
- natural language sentences
- stochastic context free grammars
- genetic algorithm