Keyphrases
- natural language
- information sharing
- knowledge sharing
- context free grammars
- information systems
- data sharing
- natural language sentences
- multiple users
- linguistic knowledge
- graph grammars
- tree grammars
- databases
- wide coverage
- attribute grammars
- finite state automata
- grammar rules
- grammatical inference
- share information
- multi agent
- machine learning
- data mining
- neural network