Multi-Layer Decision Methodology For Ranking Z-Numbers

The new concept of a – number has been recently introduced in decision making analysis. This concept is capable of effectively dealing with uncertainty in information about a decision. As this concept is relatively new in fuzzy sets, its underlying theoretical aspects have not been establi...

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Main Authors: Ahmad Syafadhli Abu Bakar, Alexander Gegov
Format: Article
Language:English
Published: Springer 2015-04-01
Series:International Journal of Computational Intelligence Systems
Subjects:
Online Access:https://www.atlantis-press.com/article/25868604.pdf
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author Ahmad Syafadhli Abu Bakar
Alexander Gegov
author_facet Ahmad Syafadhli Abu Bakar
Alexander Gegov
author_sort Ahmad Syafadhli Abu Bakar
collection DOAJ
description The new concept of a – number has been recently introduced in decision making analysis. This concept is capable of effectively dealing with uncertainty in information about a decision. As this concept is relatively new in fuzzy sets, its underlying theoretical aspects have not been established yet. In this paper, a multi-layer methodology for ranking Z – numbers is proposed for the first time. This methodology consists of two layers: Z – number conversion as the first layer and fuzzy number ranking as the second layer. In this study, the conversion methodology of Z – numbers into fuzzy numbers is extended to conversion into standardised generalised fuzzy number so that the methodology is applicable to both positive and negative data values. The methodology is validated by means of thorough comparison with some established ranking methods for consistency purposes. This methodology is considered as a generic decision making procedure, especially when – numbers are applied to real decision making problems.
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spelling doaj.art-205c2b05c7ff4078a831a9b2095f475e2022-12-22T02:09:46ZengSpringerInternational Journal of Computational Intelligence Systems1875-68832015-04-018210.1080/18756891.2015.1017371Multi-Layer Decision Methodology For Ranking Z-NumbersAhmad Syafadhli Abu BakarAlexander GegovThe new concept of a – number has been recently introduced in decision making analysis. This concept is capable of effectively dealing with uncertainty in information about a decision. As this concept is relatively new in fuzzy sets, its underlying theoretical aspects have not been established yet. In this paper, a multi-layer methodology for ranking Z – numbers is proposed for the first time. This methodology consists of two layers: Z – number conversion as the first layer and fuzzy number ranking as the second layer. In this study, the conversion methodology of Z – numbers into fuzzy numbers is extended to conversion into standardised generalised fuzzy number so that the methodology is applicable to both positive and negative data values. The methodology is validated by means of thorough comparison with some established ranking methods for consistency purposes. This methodology is considered as a generic decision making procedure, especially when – numbers are applied to real decision making problems.https://www.atlantis-press.com/article/25868604.pdf– numbersranking – numbersconsistency with human intuitionstandardised generalised fuzzy numbers
spellingShingle Ahmad Syafadhli Abu Bakar
Alexander Gegov
Multi-Layer Decision Methodology For Ranking Z-Numbers
International Journal of Computational Intelligence Systems
– numbers
ranking – numbers
consistency with human intuition
standardised generalised fuzzy numbers
title Multi-Layer Decision Methodology For Ranking Z-Numbers
title_full Multi-Layer Decision Methodology For Ranking Z-Numbers
title_fullStr Multi-Layer Decision Methodology For Ranking Z-Numbers
title_full_unstemmed Multi-Layer Decision Methodology For Ranking Z-Numbers
title_short Multi-Layer Decision Methodology For Ranking Z-Numbers
title_sort multi layer decision methodology for ranking z numbers
topic – numbers
ranking – numbers
consistency with human intuition
standardised generalised fuzzy numbers
url https://www.atlantis-press.com/article/25868604.pdf
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