Keyphrases
- regular languages
- regular expressions
- context free languages
- grammatical inference
- finite automata
- decision problems
- context free grammars
- positive data
- pac learning
- finite state machines
- statistical queries
- context free
- pattern matching
- xml schema
- decision trees
- positive and negative
- utility function
- optimal policy
- upper bound
- equivalence queries
- query language
- special case