A Human-In-The-Loop System for Clustering and Visualization of Failure Modes In FMEA

Two important issues related to the practical implementation of Failure Modes and Effects Analysis (FMEA) are the lengthiness and intricacies of an FMEA worksheet. As such, to tackle the aforementioned issues, a new FMEA methodology which incorporates an HITL system is proposed. Risk ratings of fail...

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Main Author:	Sheng Wei, Toh
Format:	Thesis
Language:	English
Published:	2022
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://ir.unimas.my/id/eprint/40465/3/Toh%20Sheng.pdf
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id	my-unimas-ir.40465
record_format	uketd_dc
spelling	my-unimas-ir.404652023-10-17T02:57:27Z A Human-In-The-Loop System for Clustering and Visualization of Failure Modes In FMEA 2022-11-15 Sheng Wei, Toh TK Electrical engineering. Electronics Nuclear engineering Two important issues related to the practical implementation of Failure Modes and Effects Analysis (FMEA) are the lengthiness and intricacies of an FMEA worksheet. As such, to tackle the aforementioned issues, a new FMEA methodology which incorporates an HITL system is proposed. Risk ratings of failure modes, i.e., associated Severity, Occurrence, and Detection ratings are considered. In this thesis, the lengthiness and intricacies of an FMEA worksheet are first substantiated through three benchmark examples. Then, an HITL system incorporating clustering, cluster validation, and visualization is developed. Clustering serves to cluster failure modes such that failure modes of the same cluster share a higher degree of similarity as compared to those of other clusters. Cluster validation is used to determine the optimum number of clusters and the validity of the formed clusters. Last but not least, visualization is used to: (i) provide an overview of all failure modes in an easy to comprehend manner; (ii) allows FMEA users to access and analyse a greater number of failure modes simultaneously which ultimately leads to a better decision making process. The use of clustering, cluster validation, and visualization in FMEA are demonstrated through selected FMEA benchmark examples. Finally, the usefulness and practicality of the developed HITL system is demonstrated through a real-world FMEA case study pertaining to crop management in paddy. The specific focus is on issues related to investment yield and improving paddy FMEA users decision making process. Discussions held with paddy FMEA users reveals that the developed system is useful for paddy FMEA users Universiti Malaysia Sarawak 2022-11 Thesis http://ir.unimas.my/id/eprint/40465/ http://ir.unimas.my/id/eprint/40465/3/Toh%20Sheng.pdf text en validuser phd doctoral Universiti Malaysia Sarawak Faculty of Engineering
institution	Universiti Malaysia Sarawak
collection	UNIMAS Institutional Repository
language	English
topic	TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering Sheng Wei, Toh A Human-In-The-Loop System for Clustering and Visualization of Failure Modes In FMEA
description	Two important issues related to the practical implementation of Failure Modes and Effects Analysis (FMEA) are the lengthiness and intricacies of an FMEA worksheet. As such, to tackle the aforementioned issues, a new FMEA methodology which incorporates an HITL system is proposed. Risk ratings of failure modes, i.e., associated Severity, Occurrence, and Detection ratings are considered. In this thesis, the lengthiness and intricacies of an FMEA worksheet are first substantiated through three benchmark examples. Then, an HITL system incorporating clustering, cluster validation, and visualization is developed. Clustering serves to cluster failure modes such that failure modes of the same cluster share a higher degree of similarity as compared to those of other clusters. Cluster validation is used to determine the optimum number of clusters and the validity of the formed clusters. Last but not least, visualization is used to: (i) provide an overview of all failure modes in an easy to comprehend manner; (ii) allows FMEA users to access and analyse a greater number of failure modes simultaneously which ultimately leads to a better decision making process. The use of clustering, cluster validation, and visualization in FMEA are demonstrated through selected FMEA benchmark examples. Finally, the usefulness and practicality of the developed HITL system is demonstrated through a real-world FMEA case study pertaining to crop management in paddy. The specific focus is on issues related to investment yield and improving paddy FMEA users decision making process. Discussions held with paddy FMEA users reveals that the developed system is useful for paddy FMEA users
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Sheng Wei, Toh
author_facet	Sheng Wei, Toh
author_sort	Sheng Wei, Toh
title	A Human-In-The-Loop System for Clustering and Visualization of Failure Modes In FMEA
title_short	A Human-In-The-Loop System for Clustering and Visualization of Failure Modes In FMEA
title_full	A Human-In-The-Loop System for Clustering and Visualization of Failure Modes In FMEA
title_fullStr	A Human-In-The-Loop System for Clustering and Visualization of Failure Modes In FMEA
title_full_unstemmed	A Human-In-The-Loop System for Clustering and Visualization of Failure Modes In FMEA
title_sort	human-in-the-loop system for clustering and visualization of failure modes in fmea
granting_institution	Universiti Malaysia Sarawak
granting_department	Faculty of Engineering
publishDate	2022
url	http://ir.unimas.my/id/eprint/40465/3/Toh%20Sheng.pdf
_version_	1783728523049959424

A Human-In-The-Loop System for Clustering and Visualization of Failure Modes In FMEA

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