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Detection of Breakdowns using Historical Work Orders Data Analysis for Preventive Maintenance

Authors:

Albert Bergström , Subaharan Kailayanathan , Saji Kamdod , Dmitrii Shabunin , Simon Monie´ , Martin Norrbom , Mobyen Uddin Ahmed

Research group:

Artificial Intelligence and Intelligent Systems

Publication Type:

Report

Abstract

Maintenance is an essential aspect of any industry working with machines. Breakdowns are expensive and can cause significant disruptions in the process line. Work orders provide essential information about breakdowns. However, this information can be challenging to comprehend and classify the root causation behind the breakdowns. In this project, work orders were analyzed using Natural Language Processing to find hidden patterns that show the root cause behind these breakdowns. Six different methods were used to analyze the data set: three unsupervised machine learning algorithms, and three supervised machine learning algorithms. For unsupervised learning, K-means, DBSCAN, and Hierarchical clustering were used for clustering. For supervised learning, Random Forest, Linear Regression, and Naive-Bayes were used for classification. After examining the results, the methods were unable to find any hidden patterns that could be related to the root cause of the breakdowns. It was concluded that changes to the data set should be made before there could be any substantial information gain from the free text since the description of the problem and solution has such a high amount of variations. Additionally, several suggestions were made related to improvements that could be made to improve the performance of a future analysis.

Bibtex

@techreport{Bergstrom5748,
author = {Albert Bergstr{\"o}m and Subaharan Kailayanathan and Saji Kamdod and Dmitrii Shabunin and Simon Monie´ and Martin Norrbom and Mobyen Uddin Ahmed},
title = {Detection of Breakdowns using Historical Work Orders Data Analysis for Preventive Maintenance },
month = {January},
year = {2020},
url = {http://www.es.mdu.se/publications/5748-}
}