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Publications:Towards relation discovery for diagnostics
Abstract <p>It is difficult to implement pred<p>It is difficult to implement predictive maintenance in the automotive industry as it looks today, since the sensor capabilities and engineering effort available for diagnostic purposes is limited. It is, in practice, impossible to develop diagnostic algorithms capable of detecting many different kinds of faults that would be applicable to a wide range of vehicle configurations and usage patterns. However, it is now becoming feasible to obtain and analyse on-board data on vehicles as they are being used. It makes automatic data-mining methods an attractive alternative, since they are capable of adapting themselves to specific vehicle configurations and usage. In order to be useful, though, such methods need to be able to detect interesting relations between a large number of available signals. This paper presents an unsupervised method for discovering useful relations between measured signals in a Volvo truck, both during normal operations and when a fault has occurred. The interesting relationships are found in a two-step procedure. In the first step, we identify a set of “good” models, by establishing an MSE threshold over the complete data set. In the second step, we estimate model parameters over time, in order to capture the dynamic behaviour of the system. We use two different approaches here, the LASSO method and the Recursive Least Squares filter. The usefulness of obtained relations is then evaluated using supervised learning to separate different classes of faults.</p>ate different classes of faults.</p>
Author Rune Prytz + , Sławomir Nowaczyk + , Stefan Byttner +
Conference 17th ACM SIGKDD Conference on Knowledge Discovery and Data Mining
DOI http://dx.doi.org/10.1145/2018673.2018678  +
Diva http://hh.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:437123
EndPage 27  +
HostPublication Proceedings of the First International Workshop on Data Mining for Service and Maintenance  +
PublicationType Conference Paper  +
Publisher Association for Computing Machinery (ACM)  +
StartPage 23  +
Title Towards relation discovery for diagnostics  +
Year 2011  +
Has queryThis property is a special property in this wiki. Publications:Towards relation discovery for diagnostics + , Publications:Towards relation discovery for diagnostics + , Publications:Towards relation discovery for diagnostics + , Publications:Towards relation discovery for diagnostics + , Publications:Towards relation discovery for diagnostics + , Publications:Towards relation discovery for diagnostics + , Publications:Towards relation discovery for diagnostics + , Publications:Towards relation discovery for diagnostics + , Publications:Towards relation discovery for diagnostics + , Publications:Towards relation discovery for diagnostics +
Categories Publication  +
Modification dateThis property is a special property in this wiki. 30 September 2016 20:39:57  +
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