A new paradigm for uncertain knowledge representation by Plausible Petri nets

Chiachío, Manuel; Chiachío, Juan; Prescott, Darren; Andrews, John

Abstract

This paper presents a new model for Petri nets (PNs) which combines PN principles with the foundations of information theory for uncertain knowledge representation. The resulting framework has been named Plausible Petri nets (PPNs). The main feature of PPNs resides in their efficiency to jointly consider the evolution of a discrete event system together with uncertain information about the system state using states of information. The paper overviews relevant concepts of information theory and uncertainty representation, and presents an algebraic method to formally consider the evolution of uncertain state variables within the PN dynamics. To illustrate some of the real-world challenges relating to uncertainty that can be handled using a PPN, an example of an expert system is provided, demonstrating how condition monitoring data and expert opinion can be modelled.

Citation

Chiachío, M., Chiachío, J., Prescott, D., & Andrews, J. (2018). A new paradigm for uncertain knowledge representation by Plausible Petri nets. Information Sciences, 453, https://doi.org/10.1016/j.ins.2018.04.029

• Journal Article Type: Article
• Acceptance Date: Apr 7, 2018
• Online Publication Date: Apr 10, 2018
• Publication Date: Jul 31, 2018
• Deposit Date: Apr 26, 2018
• Publicly Available Date: Apr 26, 2018
• Journal: Information Sciences
• Print ISSN: 0020-0255
• Electronic ISSN: 1872-6291
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 453
• DOI: https://doi.org/10.1016/j.ins.2018.04.029
• Keywords: Petri nets; Information theory; Knowledge representation; Expert systems
• Public URL: https://nottingham-repository.worktribe.com/output/948133
• Publisher URL: https://doi.org/10.1016/j.ins.2018.04.029
• Contract Date: Apr 26, 2018