Uncertainty treatment in expert information systems for maintenance policy assessment

Maintenance and Expert Systems

This paper presents an expert system for maintenance of one stage compression refrigerating systems. First a steady state model was developed to estimate significant parameters useful for the diagnosis of the functioning state of the plant. The inputs of the model are data coming from sensors installed on the plant. In our study we concluded the necessity of redunduncies to treat efficiently se...

Reasoning with Uncertainty for Expert Systems

We d iscuss a methodology f o r hand l ing u n c e r t a i n i n f o r m a t i o n i n exper t and o ther i n t e l l i g e n t systems. Th is approach combines the t h e o r i e s of approximate reasoning and Dempster— Shafer .

Dealing with Uncertainty in Expert Systems

The aim of artificial intelligence is to develop tools for representing piece of knowledge and providing inference mechanism for elaborating conclusion of knowledge from stored information. The available knowledge is far from being certain, precise and complete. In Expert systems the word uncertainty is related to the working with inexact data, imprecise information, handling identical situatio...

Internet Supportive Systems and Rehabilitation of Addicts Under Maintenance Treatment

Mitigating uncertainty using alternative information sources and expert judgement in aquatic non-indigenous species risk assessment

Aquatic non-indigenous species (ANS) management employs risk assessment as a tool to prioritize prevention and control efforts, but timely and comprehensive risk estimates are difficult due to various sources of uncertainty, particularly knowledge gaps. Several fields use or endorse the use of precaution, as well as group Delphic processes, to mitigate this uncertainty. To test the application ...