A Novel Description on Vague Graph with Application in Transportation Systems

Fuzzy graph (FG) models embrace the ubiquity of existing in natural and man-made structures, specifically dynamic processes in physical, biological, and social systems. It is exceedingly difficult for an expert to model those problems based on a FG because of the inconsistent and indeterminate infor...

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Main Authors: Zheng Kou, Saeed Kosari, Maryam Akhoundi
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Journal of Mathematics
Online Access:http://dx.doi.org/10.1155/2021/4800499
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author Zheng Kou
Saeed Kosari
Maryam Akhoundi
author_facet Zheng Kou
Saeed Kosari
Maryam Akhoundi
author_sort Zheng Kou
collection DOAJ
description Fuzzy graph (FG) models embrace the ubiquity of existing in natural and man-made structures, specifically dynamic processes in physical, biological, and social systems. It is exceedingly difficult for an expert to model those problems based on a FG because of the inconsistent and indeterminate information inherent in real-life problems being often uncertain. Vague graph (VG) can deal with the uncertainty associated with the inconsistent and determinate information of any real-world problem, where FGs many fail to reveal satisfactory results. Regularity definitions have been of high significance in the network heterogeneity study, which have implications in networks found across biology, ecology, and economy; so, adjacency sequence (AS) and fundamental sequences (FS) of regular vague graphs (RVGs) are defined with examples. One essential and adequate prerequisite has been ascribed to a VG with maximum four vertices is that it should be regular based on the adjacency sequences concept. Likewise, it is described that if ζ and its principal crisp graph (CG) are regular, then all the nodes do not have to have the similar AS. In the following, we obtain a characterization of vague detour (VD) g-eccentric node, and the concepts of vague detour g-boundary nodes and vague detour g-interior nodes in a VG are examined. Finally, an application of vague detour g-distance in transportation systems is given.
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spelling doaj-art-4966cfb8e87c4d3e9910021ee7feaf9d2025-02-03T01:21:04ZengWileyJournal of Mathematics2314-47852021-01-01202110.1155/2021/4800499A Novel Description on Vague Graph with Application in Transportation SystemsZheng Kou0Saeed Kosari1Maryam Akhoundi2Institute of Computing Science and TechnologyInstitute of Computing Science and TechnologyClinical Research Development Unit of Rouhani HospitalFuzzy graph (FG) models embrace the ubiquity of existing in natural and man-made structures, specifically dynamic processes in physical, biological, and social systems. It is exceedingly difficult for an expert to model those problems based on a FG because of the inconsistent and indeterminate information inherent in real-life problems being often uncertain. Vague graph (VG) can deal with the uncertainty associated with the inconsistent and determinate information of any real-world problem, where FGs many fail to reveal satisfactory results. Regularity definitions have been of high significance in the network heterogeneity study, which have implications in networks found across biology, ecology, and economy; so, adjacency sequence (AS) and fundamental sequences (FS) of regular vague graphs (RVGs) are defined with examples. One essential and adequate prerequisite has been ascribed to a VG with maximum four vertices is that it should be regular based on the adjacency sequences concept. Likewise, it is described that if ζ and its principal crisp graph (CG) are regular, then all the nodes do not have to have the similar AS. In the following, we obtain a characterization of vague detour (VD) g-eccentric node, and the concepts of vague detour g-boundary nodes and vague detour g-interior nodes in a VG are examined. Finally, an application of vague detour g-distance in transportation systems is given.http://dx.doi.org/10.1155/2021/4800499
spellingShingle Zheng Kou
Saeed Kosari
Maryam Akhoundi
A Novel Description on Vague Graph with Application in Transportation Systems
Journal of Mathematics
title A Novel Description on Vague Graph with Application in Transportation Systems
title_full A Novel Description on Vague Graph with Application in Transportation Systems
title_fullStr A Novel Description on Vague Graph with Application in Transportation Systems
title_full_unstemmed A Novel Description on Vague Graph with Application in Transportation Systems
title_short A Novel Description on Vague Graph with Application in Transportation Systems
title_sort novel description on vague graph with application in transportation systems
url http://dx.doi.org/10.1155/2021/4800499
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