Keyphrases
- petri net
- formal languages
- natural language
- petri net model
- colored petri nets
- discrete event systems
- context free grammars
- ims ld
- pattern languages
- service composition
- formal language
- stochastic petri net
- fuzzy petri net
- process algebra
- artificial intelligence
- process model
- knowledge representation
- metadata
- machine learning
- programmable logic controller