liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
A Heuristic for Near-Optimal Troubleshooting Using AO*
2008 (English)In: Proceedings of the International Workshop on the Principles of Diagnosis, 2008Conference paper (Refereed)
Abstract [en]

When troubleshooting malfunctioning technical equipment, the task is to locate faults and make repairsuntil the equipment functions properly again. The AO* algorithm can be used to find troubleshootingstrategies that are optimal in the sense that the expected cost of repair is minimal. We have adaptedthe AO* algorithm for troubleshooting in the automotive domain with limited time. We propose a newheuristic based on entropy. By using this heuristic, near-optimal strategies can be found within a fixedtime limit. This is shown in empirical studies on a fuel injection system of a truck. In these results, theAO* algorithm using the new heuristic, performs better than other troubleshooting algorithms.

National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-51208 (URN)oai:DiVA.org:liu-51208 (OAI)diva2:273340 (DiVA)
Available from2009-10-21 Created:2009-10-21 Last updated:2009-10-26

Open Access in DiVA

No full text

Search in DiVA

By author/editor
Warnquist, HåkanNyberg, Mattias
By organisation
KPLAB - Knowledge Processing LabThe Institute of TechnologyVehicular Systems
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 69 hits
ReferencesLink to record
Permanent link

Direct link