Fault identification through the combination of symbolic conflict recognition and Markov Chain-aided belief revision


Autoria(s): Shen, Qiang; Smith, Finlay
Contribuinte(s)

Department of Computer Science

Advanced Reasoning Group

Data(s)

15/01/2008

15/01/2008

01/09/2004

Resumo

F. Smith and Q. Shen. Fault identification through the combination of symbolic conflict recognition and Markov Chain-aided belief revision. IEEE Transactions on Systems, Man and Cybernetics, Part A: Systems and Humans, 34(5):649-663, 2004.

Fault identification is a search for possible behaviors that would explain the observed behavior of a physical system. During this search, different possible models are considered and information about the interaction between possible behaviors is derived. Much of this potentially useful information is generally ignored in conventional pure symbolic approaches to fault diagnosis, however. A novel approach is presented in this paper that exploits uncertain information on the behavioral description of system components to identify possible fault behaviors in physical systems. The work utilizes the standard conflict recognition technique developed in the framework of the general diagnostic engine (GDE) to support diagnostic inference through the production of both rewarding and penalizing evidence. In particular, Markov matrices are derived from the given evidence, thereby enabling the use of Markov chains to implement the diagnostic process. This work has resulted in a technique, which maximizes the use of derived information, for identifying candidates for multiple faults that is demonstrated to be very effective.

Peer reviewed

Formato

15

Identificador

Shen , Q & Smith , F 2004 , ' Fault identification through the combination of symbolic conflict recognition and Markov Chain-aided belief revision ' IEEE Transactions on Systems, Man, and Cybernetics, Part B (Cybernetics) , vol 34 , no. 5 , pp. 649-663 . DOI: 10.1109/TSMCA.2004.832826

PURE: 74683

PURE UUID: e6a6481f-781c-4eaf-b2c6-2ac45198c0d3

dspace: 2160/431

http://hdl.handle.net/2160/431

http://dx.doi.org/10.1109/TSMCA.2004.832826

Idioma(s)

eng

Relação

IEEE Transactions on Systems, Man, and Cybernetics, Part B (Cybernetics)

Tipo

/dk/atira/pure/researchoutput/researchoutputtypes/contributiontojournal/article

Direitos