Keyphrases
- grammatical inference
- context free grammars
- visual languages
- natural language
- context free
- syntactic pattern recognition
- stochastic grammar
- tree grammars
- finite state automata
- natural language processing
- state space
- mildly context sensitive
- database
- context free languages
- matrix representation
- linear algebra
- covariance matrix
- least squares
- information extraction
- expert systems
- video sequences
- machine learning
- neural network
- data sets