[go: up one dir, main page]

 
 
Sign in to use this feature.

Years

Between: -

Subjects

remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline

Journals

Article Types

Countries / Regions

Search Results (27)

Search Parameters:
Keywords = Heronian mean

Order results
Result details
Results per page
Select all
Export citation of selected articles as:
16 pages, 4072 KiB  
Article
Evaluating Regional Potentials of Agricultural E-Commerce Development Using a Novel MEREC Heronian-CoCoSo Approach
by Shupeng Huang, Hong Cheng, Manyi Tan, Zhiqing Tang and Chuyi Teng
Agriculture 2024, 14(8), 1338; https://doi.org/10.3390/agriculture14081338 - 10 Aug 2024
Viewed by 1101
Abstract
In terms of both economy and sustainability, rural areas can greatly benefit from adopting E-commerce. The Chinese government is currently devoting significant efforts to developing agricultural E-commerce. However, one of the most significant problems is the lack of effective tools for evaluating regional [...] Read more.
In terms of both economy and sustainability, rural areas can greatly benefit from adopting E-commerce. The Chinese government is currently devoting significant efforts to developing agricultural E-commerce. However, one of the most significant problems is the lack of effective tools for evaluating regional potentials in this regard, possibly leading to inappropriate policymaking, investment allocation, and regional planning. To address this issue, this study proposes a novel and effective method for evaluating regional potentials for agricultural E-commerce development, integrating the method based on the removal effects of criteria (MEREC), Heronian mean operator, and combined compromise solution (CoCoSo) method. The method’s effectiveness is then tested and confirmed in the Chinese city of Yibin through an evaluation of its ten regions. The results suggest that such a method is robust, objective, and able to consider indicator interactions effectively. By applying this method, regional agricultural E-commerce development potentials can be thoroughly evaluated and ranked. This study contributes to the literature by providing new analytical techniques for agricultural studies, as well as by supporting political and investment decision-making for governments and E-commerce practitioners in the agriculture sector. Full article
(This article belongs to the Section Agricultural Economics, Policies and Rural Management)
Show Figures

Figure 1

Figure 1
<p>The map of Yibin for agricultural E-commerce development potential evaluation.</p>
Full article ">Figure 2
<p>Methodological flow chart of agricultural E-commerce development potential evaluation.</p>
Full article ">Figure 3
<p>Sensitivity analysis for the CoCoSo parameter.</p>
Full article ">
36 pages, 1163 KiB  
Article
Advanced Linguistic Complex T-Spherical Fuzzy Dombi-Weighted Power-Partitioned Heronian Mean Operator and Its Application for Emergency Information Quality Assessment
by Yuqi Zang, Jiamei Zhao, Wenchao Jiang and Tong Zhao
Sustainability 2024, 16(7), 3069; https://doi.org/10.3390/su16073069 - 7 Apr 2024
Viewed by 1079
Abstract
Against the background of a major change in the world unseen in a century, emergencies with high complexity and uncertainty have had serious impacts on economic security and sustainable social development, making emergency management an important issue that needs to be urgently resolved, [...] Read more.
Against the background of a major change in the world unseen in a century, emergencies with high complexity and uncertainty have had serious impacts on economic security and sustainable social development, making emergency management an important issue that needs to be urgently resolved, and the quality assessment of emergency information is a key link in emergency management. To effectively deal with the uncertainty of emergency information quality assessment, a new fuzzy multi-attribute assessment method is proposed in this paper. First, we propose the linguistic complex T-spherical fuzzy set (LCT-SFS), which can deal with two-dimensional problems and cope with situations in which assessment experts cannot give quantitative assessments. Then, the advanced linguistic complex T-spherical fuzzy Dombi-weighted power-partitioned Heronian mean (ALCT-SFDWPPHM) operator, which incorporates the flexibility of Dombi operations, is proposed. The partitioned Heronian mean (PHM) operator can consider attribute partitioning and attribute correlation, the power average (PA) operator can eliminate the effect of evaluation singularities, and the advanced operator can circumvent the problem of consistent or indistinguishable aggregation results, which provides a strong comprehensive advantage in the evaluating information aggregation. Finally, a fuzzy multi-attribute assessment model is constructed by combining the proposed operator with the WASPAS method and applied to the problem of assessing the quality and sensitivity of emergency information; qualitative and quantitative comparison analyses are carried out. The results show the method proposed in this paper has strong feasibility and validity and can represent uncertainty assessment more flexibly while providing reasonable and reliable results. The method can provide new ideas and methods for the quality assessment of emergency information, and promoting sustainable, efficient, and high-quality development of emergency management. Full article
Show Figures

Figure 1

Figure 1
<p>Score values of four databases when <inline-formula><mml:math id="mm951"><mml:semantics><mml:mrow><mml:mi>λ</mml:mi></mml:mrow></mml:semantics></mml:math></inline-formula> changes.</p>
Full article ">Figure 2
<p>Score values of four databases when <inline-formula><mml:math id="mm952"><mml:semantics><mml:mrow><mml:mi>q</mml:mi></mml:mrow></mml:semantics></mml:math></inline-formula> changes.</p>
Full article ">
22 pages, 3070 KiB  
Article
A New Multi-Target Three-Way Threat Assessment Method with Heterogeneous Information and Attribute Relevance
by Yang Gao and Na Lyu
Mathematics 2024, 12(5), 691; https://doi.org/10.3390/math12050691 - 27 Feb 2024
Cited by 3 | Viewed by 948
Abstract
Target threat assessment provides support for combat decision making. The multi-target threat assessment method based on a three-way decision can obtain threat classification while receiving threat ranking, thus avoiding the limitation of traditional two-way decisions. However, the heterogeneous situation information, attribute relevance, and [...] Read more.
Target threat assessment provides support for combat decision making. The multi-target threat assessment method based on a three-way decision can obtain threat classification while receiving threat ranking, thus avoiding the limitation of traditional two-way decisions. However, the heterogeneous situation information, attribute relevance, and adaptive information processing needs in complex battlefield environment bring challenges to existing methods. Therefore, this paper proposes a new multi-target three-way threat assessment method with heterogeneous information and attribute relevance. Firstly, dynamic assessment information is represented by heterogeneous information, and attribute weights are calculated by heterogeneous Criteria Importance Through Intercriteria Correlation (CRITIC). Then, the conditional probability is calculated by the heterogeneous weighted Technique for Order Preference by Similarity to Ideal Solution (TOPSIS), and the adaptive risk avoidance coefficients are constructed by calculating the uncertainty of the assessment value, and then the relative loss function matrices are constructed. Finally, the comprehensive loss function matrices are obtained by the weighted Heronian mean (HM) operator, and the comprehensive thresholds are calculated to obtain the three-way rules. The case study shows that compared with the existing methods, the proposed method can effectively handle the heterogeneous information and attribute relevance, and obtain the risk avoidance coefficients without presetting or field subjective settings, which is more suitable for the complex mission environment. Full article
Show Figures

Figure 1

Figure 1
<p>The implemented process of target threat assessment.</p>
Full article ">Figure 2
<p>The evaluation process of proposed method.</p>
Full article ">Figure 3
<p>The results of the proposed method (<b>a</b>) and method in [<a href="#B6-mathematics-12-00691" class="html-bibr">6</a>] (<b>b</b>).</p>
Full article ">Figure 4
<p>The results of TH2 method (<b>a</b>) and TH3/TH4 method (<b>b</b>).</p>
Full article ">Figure 5
<p>The relative magnitude of decision domains of <math display="inline"><semantics> <mrow> <msub> <mi>T</mi> <mn>2</mn> </msub> </mrow> </semantics></math>.</p>
Full article ">Figure 6
<p>Adaptive risk avoidance threshold curves of <math display="inline"><semantics> <mrow> <msub> <mi>A</mi> <mn>3</mn> </msub> </mrow> </semantics></math> (<b>a</b>), <math display="inline"><semantics> <mrow> <msub> <mi>A</mi> <mn>4</mn> </msub> </mrow> </semantics></math> (<b>b</b>), <math display="inline"><semantics> <mrow> <msub> <mi>A</mi> <mn>5</mn> </msub> </mrow> </semantics></math> (<b>c</b>), and <math display="inline"><semantics> <mrow> <msub> <mi>A</mi> <mn>6</mn> </msub> </mrow> </semantics></math> (<b>d</b>).</p>
Full article ">
23 pages, 1151 KiB  
Article
An Integrated EDAS Model for Fermatean Fuzzy Multi-Attribute Group Decision Making and Its Application in Green-Supplier Selection
by Shouzhen Zeng, Wendi Chen, Jiaxing Gu and Erhua Zhang
Systems 2023, 11(3), 162; https://doi.org/10.3390/systems11030162 - 21 Mar 2023
Cited by 14 | Viewed by 1970
Abstract
The environment and economy benefit from the sustained growth of a high-quality green supplier. During a supplier evaluation and selection process, DMs tend to use fuzzy tools to express evaluation information due to complex practical problems. Therefore, this study explores the green-supplier evaluation [...] Read more.
The environment and economy benefit from the sustained growth of a high-quality green supplier. During a supplier evaluation and selection process, DMs tend to use fuzzy tools to express evaluation information due to complex practical problems. Therefore, this study explores the green-supplier evaluation method in a complex Fermatean fuzzy (FF) environment. First, a group of indicators was created to evaluate the green capabilities and the social impact of suppliers. Second, by combining the merits of the Heronian mean and power average approaches, a FF power Heronian mean and its weighted framework were developed, and their related properties and special families were then presented. Third, to acquire the relative importance of indicators, a marvelous unification of the best–worst method (BWM) and FF entropy is then introduced. The challenge of choosing a green supplier was finally solved using an integrated evaluation based on distance from the average solution (EDAS) evaluation framework in the FF environment. Finally, the presented tool’s viability and robustness were confirmed by actual case analysis. Full article
(This article belongs to the Special Issue Data Driven Decision-Making for Complex Production Systems)
Show Figures

Figure 1

Figure 1
<p>Process of FF’s integrated EDAS model.</p>
Full article ">Figure 2
<p>Evaluation values of each alternative under different types of weights.</p>
Full article ">
29 pages, 462 KiB  
Article
Trapezoidal Intuitionistic Fuzzy Power Heronian Aggregation Operator and Its Applications to Multiple-Attribute Group Decision-Making
by Jeevaraj Selvaraj, Prakash Gatiyala and Sarfaraz Hashemkhani Zolfani
Axioms 2022, 11(11), 588; https://doi.org/10.3390/axioms11110588 - 25 Oct 2022
Cited by 6 | Viewed by 1948
Abstract
Decision-making problems involve imprecise and incomplete information that can be modelled well using intuitionistic fuzzy numbers (IFNs). Various IFNs are available in the literature for modelling such problems. However, trapezoidal intuitionistic fuzzy numbers (TrIFNs) are widely used. It is mainly because of the [...] Read more.
Decision-making problems involve imprecise and incomplete information that can be modelled well using intuitionistic fuzzy numbers (IFNs). Various IFNs are available in the literature for modelling such problems. However, trapezoidal intuitionistic fuzzy numbers (TrIFNs) are widely used. It is mainly because of the flexibility in capturing the incompleteness that occurs in the data. Aggregation operators play a vital role in real-life decision-making problems (modelled under an intuitionistic fuzzy environment). Different aggregation operators are available in the literature for better decision-making. Various aggregation operators are introduced in the literature as a generalization to the conventional aggregation functions defined on the set of real numbers. Each aggregation operator has a specific purpose in solving the problems effectively. In recent years, the power average (PA) operator has been used to reduce the effect of biased data provided by decision-makers. Similarly, the Heronian mean (HM) operator has a property that considers the inter-relationship among various criteria available in the decision-making problem. In this paper, we have considered both the operators (HM, PA) to introduce a new aggregation operator (on the set of TrIFNs), which takes advantage of both properties of these operators. In this study, firstly, we propose the idea of a trapezoidal intuitionistic fuzzy power Heronian aggregation (TrIFPHA) operator and a trapezoidal intuitionistic fuzzy power weighted Heronian aggregation (TrIFPWHA) operator by combining the idea of the Heronian mean operator and power average operator in real numbers. Secondly, we study different mathematical properties of the proposed aggregation operators by establishing a few essential theorems. Thirdly, we discuss a group decision-making algorithm for solving problems modelled under a trapezoidal intuitionistic fuzzy environment. Finally, we show the applicability of the group decision-making algorithm by solving a numerical case problem, and we compare the proposed method’s results with existing methods. Full article
(This article belongs to the Special Issue Fuzzy Set Theory and Its Applications in Decision Making)
Show Figures

Figure 1

Figure 1
<p>Intuitionistic fuzzy number.</p>
Full article ">Figure 2
<p>Intuitionistic fuzzy set of trapezoidal type.</p>
Full article ">
28 pages, 1228 KiB  
Article
A Hybrid Group Decision Approach Based on MARCOS and Regret Theory for Pharmaceutical Enterprises Assessment under a Single-Valued Neutrosophic Scenario
by Yuan Rong, Wenyao Niu, Harish Garg, Yi Liu and Liying Yu
Systems 2022, 10(4), 106; https://doi.org/10.3390/systems10040106 - 28 Jul 2022
Cited by 12 | Viewed by 2265
Abstract
Evaluating pharmaceutical enterprises with sustainable and high-quality development ability (SHQDA) can not only provide strategies for the pharmaceutical management department in formulating enterprise development plans, but also provide suggestions and guidance for enterprises to enhance their core competitiveness. Nevertheless, the prior research possesses [...] Read more.
Evaluating pharmaceutical enterprises with sustainable and high-quality development ability (SHQDA) can not only provide strategies for the pharmaceutical management department in formulating enterprise development plans, but also provide suggestions and guidance for enterprises to enhance their core competitiveness. Nevertheless, the prior research possesses several deficiencies in coping with the assessment of enterprises with SHQDA under uncertain environments to predict the psychological behavior of the evaluator and the correlation among the evaluation criteria. To conquer the aforementioned defects, we propose an integrated framework for rating pharmaceutical enterprises that incorporates regret theory, measurement alternatives and ranking based on the compromise solution (MARCOS) and Heronian mean operating within a single-value neutrosophic set (SVNS) environment. First, the single-valued neutrosophic number (SVNN) is employed to portray the assessment information of experts. Then, a novel single-valued neutrosophic score function is presented to enhance the rationality of the SVNN comparison. Next, a combined criteria weight model is constructed by synthesizing the best and worst method (BWM) and criteria importance through intercriteria correlation (CRITIC) approach to attain more reasonable and credible weight information. Furthermore, the integrated assessment framework combining regret theory-MARCOS method and Heronian mean operator is put forward to assess and select the enterprises with SHQDA under a single-valued neutrosophic setting. Ultimately, an empirical concerning the pharmaceutical enterprises assessment is presented within SVNS to illustrate the usefulness and effectiveness of the presented SVNS regret theory-MARCOS method. Thereafter, the sensitivity analysis and comparison analysis are implemented to provide evidence for the rationality and superiority of the proposed method. Full article
(This article belongs to the Special Issue Decision-Making Process and Its Application to Business Analytic)
Show Figures

Figure 1

Figure 1
<p>The diagram of this research.</p>
Full article ">Figure 2
<p>The SVN regret theory-MARCOS group decision framework.</p>
Full article ">Figure 3
<p>Decision results obtained by different types of weight.</p>
Full article ">Figure 4
<p>The ultimate decision results obtained with different parameters <math display="inline"><semantics> <mi>α</mi> </semantics></math> and <math display="inline"><semantics> <mi>β</mi> </semantics></math>.</p>
Full article ">
26 pages, 1800 KiB  
Article
Sustainable Circular Supplier Selection in the Power Battery Industry Using a Linguistic T-Spherical Fuzzy MAGDM Model Based on the Improved ARAS Method
by Haolun Wang
Sustainability 2022, 14(13), 7816; https://doi.org/10.3390/su14137816 - 27 Jun 2022
Cited by 14 | Viewed by 1885
Abstract
In the power battery industry, the selection of an appropriate sustainable recycling supplier (SCS) is a significant topic in circular supply chain management. Evaluating and selecting a SCS for spent power batteries is considered a complex multi-attribute group decision-making (MAGDM) problem closely related [...] Read more.
In the power battery industry, the selection of an appropriate sustainable recycling supplier (SCS) is a significant topic in circular supply chain management. Evaluating and selecting a SCS for spent power batteries is considered a complex multi-attribute group decision-making (MAGDM) problem closely related to the environment, economy, and society. The linguistic T-spherical fuzzy (Lt-SF) set (Lt-SFS) is a combination of a linguistic term set and a T-spherical fuzzy set (T-SFS), which can accurately describe vague cognition of human and uncertain environments. Therefore, this article proposes a group decision-making methodology for a SCS selection based on the improved additive ratio assessment (ARAS) in the Lt-SFS context. This paper extends the Lt-SF generalized distance measure and defines the Lt-SF similarity measure. The Lt-SF Heronian mean (Lt-SFHM) operator and its weighted form (i.e., Lt-SFWHM) were developed. Subsequently, a new Lt-SF MAGDM model was constructed by integrating the LT-SFWHM operator, generalized distance measure, and ARAS method. In it, the expert weight on the attribute was determined based on the similarity measure, using the generalized distance measure to obtain the objective attribute weight and then the combined attribute weight. Finally, a real case of SCS selection in the power battery industry is presented for demonstration. The effectiveness and practicability of this method were verified through a sensitivity analysis and a comparative study with the existing methods. Full article
Show Figures

Figure 1

Figure 1
<p>The relationship between different fuzzy sets.</p>
Full article ">Figure 2
<p>The flowchart of the Lt-SF ARAS methodology.</p>
Full article ">Figure 3
<p>Hierarchical aggregation process of the alternative.</p>
Full article ">Figure 4
<p>Recycling volume of waste batteries (excluding lead acid) in China from 2013 to 2020.</p>
Full article ">Figure 5
<p>The changes of alternatives with different <span class="html-italic">q</span>’s.</p>
Full article ">Figure 6
<p>The ranking of alternatives with different <span class="html-italic">ϕ</span>.</p>
Full article ">
30 pages, 2259 KiB  
Article
Multiple-Attribute Decision Making Based on Interval-Valued Intuitionistic Fuzzy Generalized Weighted Heronian Mean
by Ximei Hu, Shuxia Yang and Ya-Ru Zhu
Information 2022, 13(3), 138; https://doi.org/10.3390/info13030138 - 7 Mar 2022
Cited by 6 | Viewed by 2041
Abstract
Due to the complexity and uncertainty of objective things, interval-valued intuitionistic fuzzy (I-VIF) numbers are often used to describe the attribute values in multiple-attribute decision making (MADM). Sometimes, there are correlations between the attributes. In order to make the decision-making result more objective [...] Read more.
Due to the complexity and uncertainty of objective things, interval-valued intuitionistic fuzzy (I-VIF) numbers are often used to describe the attribute values in multiple-attribute decision making (MADM). Sometimes, there are correlations between the attributes. In order to make the decision-making result more objective and reasonable, it is often necessary to take the correlation factors into account. Therefore, the study of MADM based on the correlations between attributes in the I-VIF environment has important theoretical and practical significance. Thus, in this paper, we propose new operators (AOs) for I-VIF information that are able to reflect the completeness of the information, attribute relevance, and the risk preference of decision makers (DMs). Firstly, we propose some new AOs for I-VIF information, including I-VIF generalized Heronian mean (I-VIFGHM), I-VIF generalized weighted Heronian mean (I-VIFGWHM), and I-VIF three-parameter generalized weighted Heronian mean (I-VIFTPGWHM). The properties of the obtained operators, including their idempotency, monotonicity, and boundedness are studied. Furthermore, an MADM method based on the I-VIFGWHM operator is provided. Finally, an example is provided to explain the rationality and feasibility of the proposed method. Full article
Show Figures

Figure 1

Figure 1
<p><inline-formula><mml:math display="block" id="mm11956"><mml:semantics><mml:mrow><mml:mi>s</mml:mi><mml:mo>=</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:semantics></mml:math></inline-formula>, <inline-formula><mml:math display="block" id="mm12054"><mml:semantics><mml:mrow><mml:mi>t</mml:mi><mml:mo>∈</mml:mo><mml:mfenced close="]" open="["><mml:mrow><mml:mn>1</mml:mn><mml:mo>,</mml:mo><mml:mrow><mml:mo> </mml:mo><mml:mn>11</mml:mn></mml:mrow></mml:mrow></mml:mfenced></mml:mrow></mml:semantics></mml:math></inline-formula>.</p>
Full article ">Figure 2
<p><inline-formula><mml:math id="mm121546"><mml:semantics><mml:mrow><mml:mi>t</mml:mi><mml:mo>=</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:semantics></mml:math></inline-formula>, <inline-formula><mml:math id="mm122674"><mml:semantics><mml:mrow><mml:mi>s</mml:mi><mml:mo>∈</mml:mo><mml:mfenced close="]" open="["><mml:mrow><mml:mn>1</mml:mn><mml:mo>,</mml:mo><mml:mn>11</mml:mn></mml:mrow></mml:mfenced></mml:mrow></mml:semantics></mml:math></inline-formula>.</p>
Full article ">Figure 3
<p>Score values of scheme 1.</p>
Full article ">Figure 4
<p>Score values of scheme 2.</p>
Full article ">Figure 5
<p>Score values of scheme 3.</p>
Full article ">Figure 6
<p>Score values of scheme 4.</p>
Full article ">
28 pages, 1428 KiB  
Article
T-Spherical Fuzzy Rough Interactive Power Heronian Mean Aggregation Operators for Multiple Attribute Group Decision-Making
by Haolun Wang
Symmetry 2021, 13(12), 2422; https://doi.org/10.3390/sym13122422 - 14 Dec 2021
Cited by 11 | Viewed by 2083
Abstract
In this article, to synthesize the merits of interaction operational laws (IOLs), rough numbers (RNs), power average (PA) and Heronian mean (HM), a new notion of T-spherical fuzzy rough numbers (T-SFRNs) is first introduced to describe the intention of group experts accurately and [...] Read more.
In this article, to synthesize the merits of interaction operational laws (IOLs), rough numbers (RNs), power average (PA) and Heronian mean (HM), a new notion of T-spherical fuzzy rough numbers (T-SFRNs) is first introduced to describe the intention of group experts accurately and take the interaction between individual experts into account with complete and symmetric information. The distance measure and ordering rules of T-SFRNs are proposed, and the IOLs of T-SFRNs are extended. Next, the PA and HM are combined based on the IOLs of T-SFRNs, and the T-Spherical fuzzy rough interaction power Heronian mean operator and its weighted form are proposed. These aggregation operators can accurately express both individual and group uncertainty using T-SFRNs, capture the interaction among membership degree, abstinence degree and non-membership degree of T-SFRNs by employing IOLs, ensure the overall balance of variable values by the PA in the process of information fusion, and realize the interrelationship between attribute variables by the HM. Several properties and special cases of these aggregation operators are further presented and discussed. Subsequently, a new approach for dealing with T-spherical fuzzy multiple attribute group decision-making problems based on proposed aggregation operator is developed. Lastly, in order to validate the feasibility and reasonableness of the proposed approach, a numerical example is presented, and the superiorities of the proposed method are illustrated by describing a sensitivity analysis and a comparative analysis. Full article
Show Figures

Figure 1

Figure 1
<p>The flowchart of proposed method.</p>
Full article ">Figure 2
<p>Sensitivity analysis of parameter <italic>t</italic>.</p>
Full article ">
37 pages, 5717 KiB  
Article
Heronian Mean Operators Based on Novel Complex Linear Diophantine Uncertain Linguistic Variables and Their Applications in Multi-Attribute Decision Making
by Zeeshan Ali, Tahir Mahmood and Gustavo Santos-García
Mathematics 2021, 9(21), 2730; https://doi.org/10.3390/math9212730 - 27 Oct 2021
Cited by 16 | Viewed by 2026
Abstract
In this manuscript, we combine the notion of linear Diophantine fuzzy set (LDFS), uncertain linguistic set (ULS), and complex fuzzy set (CFS) to elaborate the notion of complex linear Diophantine uncertain linguistic set (CLDULS). CLDULS refers to truth, falsity, reference parameters, and their [...] Read more.
In this manuscript, we combine the notion of linear Diophantine fuzzy set (LDFS), uncertain linguistic set (ULS), and complex fuzzy set (CFS) to elaborate the notion of complex linear Diophantine uncertain linguistic set (CLDULS). CLDULS refers to truth, falsity, reference parameters, and their uncertain linguistic terms to handle problematic and challenging data in factual life impasses. By using the elaborated CLDULSs, some operational laws are also settled. Furthermore, by using the power Einstein (PE) aggregation operators based on CLDULS: the complex linear Diophantine uncertain linguistic PE averaging (CLDULPEA), complex linear Diophantine uncertain linguistic PE weighted averaging (CLDULPEWA), complex linear Diophantine uncertain linguistic PE Geometric (CLDULPEG), and complex linear Diophantine uncertain linguistic PE weighted geometric (CLDULPEWG) operators, and their useful results are elaborated with the help of some remarkable cases. Additionally, by utilizing the expounded works dependent on CLDULS, I propose a multi-attribute decision-making (MADM) issue. To decide the quality of the expounded works, some mathematical models are outlined. Finally, the incomparability and relative examination of the expounded approaches with the assistance of graphical articulations are evolved. Full article
(This article belongs to the Special Issue Fuzzy Sets and Artificial Intelligence)
21 pages, 6697 KiB  
Article
Multiple Attribute Decision Making Based on Linguistic Generalized Weighted Heronian Mean
by Ximei Hu, Shuxia Yang and Ya-Ru Zhu
Symmetry 2021, 13(7), 1191; https://doi.org/10.3390/sym13071191 - 1 Jul 2021
Cited by 5 | Viewed by 1680
Abstract
In actual multiple attribute decision making, people often use language to evaluate attributes of the object, and sometimes there are associations between the attributes. Therefore, the study of multiple attribute decision making with language as attributes and associations between attributes is of great [...] Read more.
In actual multiple attribute decision making, people often use language to evaluate attributes of the object, and sometimes there are associations between the attributes. Therefore, the study of multiple attribute decision making with language as attributes and associations between attributes is of great theoretical significance and practical value. The Heronian mean is not only an operator which reflects the associations between attributes, but also has excellent properties, including idempotency, monotonicity, boundedness, parameter symmetry, and alternate symmetry. In this paper, firstly a new linguistic generalized weighted Heronian mean (LGWHM) was provided, and its properties including idempotency, monotonicity, boundedness, and limit were studied. Then, a new three-parameter linguistic generalized weighted Heronian mean (TPLGWHM) and its idempotency, monotonicity, and boundedness properties were proposed. Finally, multi-attribute decision making methods based on the new linguistic generalized weighted Heronian mean were given, and an example was analyzed and compared with other methods. Full article
Show Figures

Figure 1

Figure 1
<p><math display="inline"><semantics> <mrow> <mi>p</mi> <mo>=</mo> <mn>1</mn> <mo>,</mo> <mi>q</mi> <mo>∈</mo> <mrow> <mo>[</mo> <mrow> <mn>1</mn> <mo>,</mo> <mn>10</mn> </mrow> <mo>]</mo> </mrow> </mrow> </semantics></math>.</p>
Full article ">Figure 2
<p><math display="inline"><semantics> <mrow> <mi>q</mi> <mo>=</mo> <mn>1</mn> <mo>,</mo> <mi>p</mi> <mo>∈</mo> <mrow> <mo>[</mo> <mrow> <mn>1</mn> <mo>,</mo> <mn>10</mn> </mrow> <mo>]</mo> </mrow> </mrow> </semantics></math>.</p>
Full article ">Figure 3
<p>Comprehensive attribute values of <math display="inline"><semantics> <mrow> <mo> </mo> <msub> <mi>x</mi> <mn>1</mn> </msub> <mo> </mo> </mrow> </semantics></math> obtained by LGWHM (<math display="inline"><semantics> <mrow> <mi>p</mi> <mo>,</mo> <mo> </mo> <mi>q</mi> <mo>∈</mo> <mrow> <mo>[</mo> <mrow> <mn>1</mn> <mo>,</mo> <mn>10</mn> </mrow> <mo>]</mo> </mrow> </mrow> </semantics></math> ).</p>
Full article ">Figure 4
<p>Comprehensive attribute values of <math display="inline"><semantics> <mrow> <mo> </mo> <msub> <mi>x</mi> <mn>2</mn> </msub> <mo> </mo> </mrow> </semantics></math> obtained by LGWHM (<math display="inline"><semantics> <mrow> <mi>p</mi> <mo>,</mo> <mo> </mo> <mi>q</mi> <mo>∈</mo> <mrow> <mo>[</mo> <mrow> <mn>1</mn> <mo>,</mo> <mn>10</mn> </mrow> <mo>]</mo> </mrow> </mrow> </semantics></math> ).</p>
Full article ">Figure 5
<p>Comprehensive attribute values of<math display="inline"><semantics> <mrow> <mo> </mo> <msub> <mi>x</mi> <mn>3</mn> </msub> <mo> </mo> </mrow> </semantics></math>obtained by LGWHM (<math display="inline"><semantics> <mrow> <mi>p</mi> <mo>,</mo> <mo> </mo> <mi>q</mi> <mo>∈</mo> <mrow> <mo>[</mo> <mrow> <mn>1</mn> <mo>,</mo> <mn>10</mn> </mrow> <mo>]</mo> </mrow> </mrow> </semantics></math> ).</p>
Full article ">Figure 6
<p>Comprehensive attribute values of <math display="inline"><semantics> <mrow> <mo> </mo> <msub> <mi>x</mi> <mn>4</mn> </msub> <mo> </mo> </mrow> </semantics></math> obtained by LGWHM (<math display="inline"><semantics> <mrow> <mi>p</mi> <mo>,</mo> <mo> </mo> <mi>q</mi> <mo>∈</mo> <mrow> <mo>[</mo> <mrow> <mn>1</mn> <mo>,</mo> <mn>10</mn> </mrow> <mo>]</mo> </mrow> </mrow> </semantics></math> ).</p>
Full article ">Figure 7
<p>Comprehensive attribute values of <math display="inline"><semantics> <mrow> <mo> </mo> <msub> <mi>x</mi> <mn>5</mn> </msub> <mo> </mo> </mrow> </semantics></math>obtained by LGWHM (<math display="inline"><semantics> <mrow> <mi>p</mi> <mo>,</mo> <mo> </mo> <mi>q</mi> <mo>∈</mo> <mrow> <mo>[</mo> <mrow> <mn>1</mn> <mo>,</mo> <mn>10</mn> </mrow> <mo>]</mo> </mrow> </mrow> </semantics></math> ).</p>
Full article ">Figure 8
<p><math display="inline"><semantics> <mrow> <mi>p</mi> <mo>=</mo> <mn>1</mn> <mo>,</mo> <mi>q</mi> <mo>∈</mo> <mrow> <mo>[</mo> <mrow> <mn>1</mn> <mo>,</mo> <mn>10</mn> </mrow> <mo>]</mo> </mrow> </mrow> </semantics></math>.</p>
Full article ">Figure 9
<p><math display="inline"><semantics> <mrow> <mi>q</mi> <mo>=</mo> <mn>1</mn> <mo>,</mo> <mi>p</mi> <mo>∈</mo> <mrow> <mo>[</mo> <mrow> <mn>1</mn> <mo>,</mo> <mn>10</mn> </mrow> <mo>]</mo> </mrow> </mrow> </semantics></math>.</p>
Full article ">Figure 10
<p>Comprehensive attribute values of <math display="inline"><semantics> <mrow> <mo> </mo> <msub> <mi>x</mi> <mn>1</mn> </msub> <mo> </mo> </mrow> </semantics></math> obtained by TPLGWHM (<math display="inline"><semantics> <mrow> <mi>p</mi> <mo>,</mo> <mo> </mo> <mi>q</mi> <mo>∈</mo> <mrow> <mo>[</mo> <mrow> <mn>1</mn> <mo>,</mo> <mn>10</mn> </mrow> <mo>]</mo> </mrow> </mrow> </semantics></math> ).</p>
Full article ">Figure 11
<p>Comprehensive attribute values of <math display="inline"><semantics> <mrow> <mo> </mo> <msub> <mi>x</mi> <mn>2</mn> </msub> <mo> </mo> </mrow> </semantics></math> obtained by TPLGWHM (<math display="inline"><semantics> <mrow> <mi>p</mi> <mo>,</mo> <mo> </mo> <mi>q</mi> <mo>∈</mo> <mrow> <mo>[</mo> <mrow> <mn>1</mn> <mo>,</mo> <mn>10</mn> </mrow> <mo>]</mo> </mrow> </mrow> </semantics></math> ).</p>
Full article ">Figure 12
<p>Comprehensive attribute values of <math display="inline"><semantics> <mrow> <mo> </mo> <msub> <mi>x</mi> <mn>3</mn> </msub> <mo> </mo> </mrow> </semantics></math> obtained by TPLGWHM (<math display="inline"><semantics> <mrow> <mi>p</mi> <mo>,</mo> <mo> </mo> <mi>q</mi> <mo>∈</mo> <mrow> <mo>[</mo> <mrow> <mn>1</mn> <mo>,</mo> <mn>10</mn> </mrow> <mo>]</mo> </mrow> </mrow> </semantics></math> ).</p>
Full article ">Figure 13
<p>Comprehensive attribute values of <math display="inline"><semantics> <mrow> <mo> </mo> <msub> <mi>x</mi> <mn>4</mn> </msub> <mo> </mo> </mrow> </semantics></math> obtained by TPLGWHM (<math display="inline"><semantics> <mrow> <mi>p</mi> <mo>,</mo> <mo> </mo> <mi>q</mi> <mo>∈</mo> <mrow> <mo>[</mo> <mrow> <mn>1</mn> <mo>,</mo> <mn>10</mn> </mrow> <mo>]</mo> </mrow> </mrow> </semantics></math> ).</p>
Full article ">Figure 14
<p>Comprehensive attribute values of <math display="inline"><semantics> <mrow> <mo> </mo> <msub> <mi>x</mi> <mn>5</mn> </msub> <mo> </mo> </mrow> </semantics></math> obtained by TPLGWHM (<math display="inline"><semantics> <mrow> <mi>p</mi> <mo>,</mo> <mo> </mo> <mi>q</mi> <mo>∈</mo> <mrow> <mo>[</mo> <mrow> <mn>1</mn> <mo>,</mo> <mn>10</mn> </mrow> <mo>]</mo> </mrow> </mrow> </semantics></math> ).</p>
Full article ">
23 pages, 721 KiB  
Article
A Novel Multi-Criteria Group Decision-Making Approach Based on Bonferroni and Heronian Mean Operators under Hesitant 2-Tuple Linguistic Environment
by Shahzad Faizi, Wojciech Sałabun, Nisbha Shaheen, Atiq ur Rehman and Jarosław Wątróbski
Mathematics 2021, 9(13), 1489; https://doi.org/10.3390/math9131489 - 24 Jun 2021
Cited by 8 | Viewed by 1695
Abstract
Ambiguous and uncertain facts can be handled using a hesitant 2-tuple linguistic set (H2TLS), an important expansion of the 2-tuple linguistic set. The vagueness and uncertainty of data can be grabbed by using aggregation operators. Therefore, aggregation operators play an important role in [...] Read more.
Ambiguous and uncertain facts can be handled using a hesitant 2-tuple linguistic set (H2TLS), an important expansion of the 2-tuple linguistic set. The vagueness and uncertainty of data can be grabbed by using aggregation operators. Therefore, aggregation operators play an important role in computational processes to merge the information provided by decision makers (DMs). Furthermore, the aggregation operator is a potential mechanism for merging multisource data which is synonymous with cooperative preference. The aggregation operators need to be studied and analyzed from various perspectives to represent complex choice situations more readily and capture the diverse experiences of DMs. In this manuscript, we propose some valuable operational laws for H2TLS. These new operational laws work through the individual aggregation of linguistic words and the collection of translation parameters. We introduced a hesitant 2-tuple linguistic weighted average (H2TLWA) operator to solve multi-criteria group decision-making (MCGDM) problems. We also define hesitant 2-tuple linguistic Bonferroni mean (H2TLBM) operator, hesitant 2-tuple linguistic geometric Bonferroni mean (H2TLGBM) operator, hesitant 2-tuple linguistic Heronian mean (H2TLHM) operator, and a hesitant 2-tuple linguistic geometric Heronian mean (H2TLGHM) operator based on the novel operational laws proposed in this paper. We define the aggregation operators for addition, subtraction, multiplication, division, scalar multiplication, power and complement with their respective properties. An application example and comparison analysis were examined to show the usefulness and practicality of the work. Full article
(This article belongs to the Special Issue Multiple Criteria Decision Making)
Show Figures

Figure 1

Figure 1
<p>Framework containing the proposed MCGDM approach with H2TL information.</p>
Full article ">Figure 2
<p>Comparison of <math display="inline"><semantics> <msub> <mi>r</mi> <mi>w</mi> </msub> </semantics></math> and <math display="inline"><semantics> <mrow> <mi>W</mi> <mi>S</mi> </mrow> </semantics></math> similarity coefficients [<a href="#B55-mathematics-09-01489" class="html-bibr">55</a>] for reference rankings <math display="inline"><semantics> <mrow> <mo>(</mo> <msub> <mi>r</mi> <mn>1</mn> </msub> <mo>)</mo> </mrow> </semantics></math>–<math display="inline"><semantics> <mrow> <mo>(</mo> <msub> <mi>r</mi> <mn>3</mn> </msub> <mo>)</mo> </mrow> </semantics></math>.</p>
Full article ">Figure 3
<p>Comparison of <math display="inline"><semantics> <msub> <mi>r</mi> <mi>w</mi> </msub> </semantics></math> and <math display="inline"><semantics> <mrow> <mi>W</mi> <mi>S</mi> </mrow> </semantics></math> similarity coefficients [<a href="#B55-mathematics-09-01489" class="html-bibr">55</a>] between reference rankings <math display="inline"><semantics> <mrow> <mo>(</mo> <msub> <mi>r</mi> <mn>1</mn> </msub> <mo>)</mo> </mrow> </semantics></math>–<math display="inline"><semantics> <mrow> <mo>(</mo> <msub> <mi>r</mi> <mn>3</mn> </msub> <mo>)</mo> </mrow> </semantics></math> and rankings obtained by using proposed operators (<b>a</b>–<b>h</b>).</p>
Full article ">
35 pages, 894 KiB  
Article
A Novel Approached Based on T-Spherical Fuzzy Schweizer-Sklar Power Heronian Mean Operator for Evaluating Water Reuse Applications under Uncertainty
by Qaisar Khan, Jeonghwan Gwak, Muhammad Shahzad and Muhammad Kamran Alam
Sustainability 2021, 13(13), 7108; https://doi.org/10.3390/su13137108 - 24 Jun 2021
Cited by 31 | Viewed by 2128
Abstract
The T-Spherical Fuzzy set (T-SPHFS) is one of the core simplifications of quite a lot of fuzzy concepts such as fuzzy set (FS), intuitionistic fuzzy set (ITFS), picture fuzzy set (PIFS), Q-rung orthopair fuzzy set (Q-RUOFS), etc. T-SPHFS reveals fuzzy judgment by the [...] Read more.
The T-Spherical Fuzzy set (T-SPHFS) is one of the core simplifications of quite a lot of fuzzy concepts such as fuzzy set (FS), intuitionistic fuzzy set (ITFS), picture fuzzy set (PIFS), Q-rung orthopair fuzzy set (Q-RUOFS), etc. T-SPHFS reveals fuzzy judgment by the degree of positive membership, degree of abstinence, degree of negative membership, and degree of refusal with relaxed conditions, and this is a more powerful mathematical tool to pair with inconsistent, indecisive, and indistinguishable information. In this article, several novel operational laws for T-SPFNs based on the Schweizer–Sklar t-norm (SSTN) and the Schweizer–Sklar t-conorm (SSTCN) are initiated, and some desirable characteristics of these operational laws are investigated. Further, maintaining the dominance of the power aggregation (POA) operators that confiscate the ramifications of the inappropriate data and Heronian mean (HEM) operators that consider the interrelationship among the input information being aggregated, we intend to focus on the T-Spherical fuzzy Schweizer–Sklar power Heronian mean (T-SPHFSSPHEM) operator, the T-Spherical fuzzy Schweizer–Sklar power geometric Heronian mean (T-SPHFSSPGHEM) operator, the T-Spherical fuzzy Schweizer–Sklar power weighted Heronian mean (T-SPHFSSPWHEM) operator, the T-Spherical fuzzy Schweizer–Sklar power weighted geometric Heronian mean (T-SPHFSSPWGHEM) operator, and their core properties and exceptional cases in connection with the parameters. Additionally, deployed on these newly initiated aggregation operators (AOs), a novel multiple attribute decision making (MADM) model is proposed. Then, the initiated model is applied to the City of Penticton (British Columbia, Canada) to select the best choice among the accessible seven water reuse choices to manifest the practicality and potency of the preferred model and a comparison with the proffered models is also particularized. Full article
29 pages, 2781 KiB  
Article
Multiple Attribute Decision-Making Based on Three-Parameter Generalized Weighted Heronian Mean
by Ximei Hu, Shuxia Yang and Ya-Ru Zhu
Mathematics 2021, 9(12), 1363; https://doi.org/10.3390/math9121363 - 12 Jun 2021
Cited by 5 | Viewed by 1596
Abstract
For the aggregation problem of attributes with a correlation relationship, it is often necessary to take the correlation factor into account in order to make the decision results more objective and reasonable. The Heronian mean is an aggregation operator which reflects the interaction [...] Read more.
For the aggregation problem of attributes with a correlation relationship, it is often necessary to take the correlation factor into account in order to make the decision results more objective and reasonable. The Heronian mean is an aggregation operator which reflects the interaction between attributes. It is of great theoretical and practical significance to study and popularize the multiple attribute decision-making methods based on the Heronian mean operator. In this paper, we first give a new three-parameter generalized weighted Heronian mean (TPGWHM), which has a series of excellent properties such as idempotency, monotonicity and boundedness. At the same time, the relationship between the TPGWHM and the existing aggregation operators is given. Then, we propose the intuitionistic fuzzy three-parameter generalized weighted Heronian mean (IFTPGWHM) and give its idempotency, monotonicity, boundedness and limit properties. On this basis, a multiple attribute decision-making method based on the TPGWHM and a multiple attribute decision-making method based on the IFTPGWHM are given, and corresponding examples are given and analyzed. Full article
(This article belongs to the Section Computational and Applied Mathematics)
Show Figures

Figure 1

Figure 1
<p><inline-formula><mml:math id="mm390" display="block"><mml:semantics><mml:mrow><mml:mi>s</mml:mi><mml:mo>=</mml:mo><mml:mn>1</mml:mn><mml:mo>,</mml:mo><mml:mo> </mml:mo><mml:mi>t</mml:mi><mml:mo>∈</mml:mo><mml:mfenced close="]" open="["><mml:mrow><mml:mn>0.001</mml:mn><mml:mo>,</mml:mo><mml:mo> </mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:mfenced></mml:mrow></mml:semantics></mml:math></inline-formula>.</p>
Full article ">Figure 2
<p><inline-formula><mml:math id="mm391" display="block"><mml:semantics><mml:mrow><mml:mi>t</mml:mi><mml:mo>=</mml:mo><mml:mn>1</mml:mn><mml:mo>,</mml:mo><mml:mo> </mml:mo><mml:mi>s</mml:mi><mml:mo>∈</mml:mo><mml:mfenced close="]" open="["><mml:mrow><mml:mn>0.001</mml:mn><mml:mo>,</mml:mo><mml:mo> </mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:mfenced></mml:mrow></mml:semantics></mml:math></inline-formula>.</p>
Full article ">Figure 3
<p>Comprehensive attribute values of <inline-formula><mml:math id="mm392" display="block"><mml:semantics><mml:mrow><mml:mo> </mml:mo><mml:msub><mml:mi>x</mml:mi><mml:mn>1</mml:mn></mml:msub><mml:mo> </mml:mo></mml:mrow></mml:semantics></mml:math></inline-formula> obtained by the TPGWHM (<inline-formula><mml:math id="mm393" display="block"><mml:semantics><mml:mrow><mml:mi>t</mml:mi><mml:mo>,</mml:mo><mml:mo> </mml:mo><mml:mi>s</mml:mi><mml:mo>∈</mml:mo><mml:mfenced close="]" open="["><mml:mrow><mml:mn>0.001</mml:mn><mml:mo>,</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:mfenced></mml:mrow></mml:semantics></mml:math></inline-formula>).</p>
Full article ">Figure 4
<p>Comprehensive attribute values of <inline-formula><mml:math id="mm394" display="block"><mml:semantics><mml:mrow><mml:mo> </mml:mo><mml:msub><mml:mi>x</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:mo> </mml:mo></mml:mrow></mml:semantics></mml:math></inline-formula> obtained by the TPGWHM (<inline-formula><mml:math id="mm395" display="block"><mml:semantics><mml:mrow><mml:mi>t</mml:mi><mml:mo>,</mml:mo><mml:mo> </mml:mo><mml:mi>s</mml:mi><mml:mo>∈</mml:mo><mml:mfenced close="]" open="["><mml:mrow><mml:mn>0.001</mml:mn><mml:mo>,</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:mfenced></mml:mrow></mml:semantics></mml:math></inline-formula>).</p>
Full article ">Figure 5
<p>Comprehensive attribute values of <inline-formula><mml:math id="mm396" display="block"><mml:semantics><mml:mrow><mml:mo> </mml:mo><mml:msub><mml:mi>x</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:mo> </mml:mo></mml:mrow></mml:semantics></mml:math></inline-formula> obtained by the TPGWHM (<inline-formula><mml:math id="mm397" display="block"><mml:semantics><mml:mrow><mml:mi>t</mml:mi><mml:mo>,</mml:mo><mml:mo> </mml:mo><mml:mi>s</mml:mi><mml:mo>∈</mml:mo><mml:mfenced close="]" open="["><mml:mrow><mml:mn>0.001</mml:mn><mml:mo>,</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:mfenced></mml:mrow></mml:semantics></mml:math></inline-formula>).</p>
Full article ">Figure 6
<p>Comprehensive attribute values of <inline-formula><mml:math id="mm398" display="block"><mml:semantics><mml:mrow><mml:mo> </mml:mo><mml:msub><mml:mi>x</mml:mi><mml:mn>4</mml:mn></mml:msub><mml:mo> </mml:mo></mml:mrow></mml:semantics></mml:math></inline-formula> obtained by the TPGWHM (<inline-formula><mml:math id="mm399" display="block"><mml:semantics><mml:mrow><mml:mi>t</mml:mi><mml:mo>,</mml:mo><mml:mo> </mml:mo><mml:mi>s</mml:mi><mml:mo>∈</mml:mo><mml:mfenced close="]" open="["><mml:mrow><mml:mn>0.001</mml:mn><mml:mo>,</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:mfenced></mml:mrow></mml:semantics></mml:math></inline-formula>).</p>
Full article ">Figure 7
<p><inline-formula><mml:math id="mm400" display="block"><mml:semantics><mml:mrow><mml:mi>s</mml:mi><mml:mo>=</mml:mo><mml:mn>1</mml:mn><mml:mo>,</mml:mo><mml:mo> </mml:mo><mml:mi>t</mml:mi><mml:mo>∈</mml:mo><mml:mfenced close="]" open="["><mml:mrow><mml:mn>0.001</mml:mn><mml:mo>,</mml:mo><mml:mo> </mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:mfenced></mml:mrow></mml:semantics></mml:math></inline-formula>.</p>
Full article ">Figure 8
<p><inline-formula><mml:math id="mm401" display="block"><mml:semantics><mml:mrow><mml:mi>t</mml:mi><mml:mo>=</mml:mo><mml:mn>1</mml:mn><mml:mo>,</mml:mo><mml:mo> </mml:mo><mml:mo> </mml:mo><mml:mi>s</mml:mi><mml:mo>∈</mml:mo><mml:mfenced close="]" open="["><mml:mrow><mml:mn>1</mml:mn><mml:mo>,</mml:mo><mml:mo> </mml:mo><mml:mn>11</mml:mn></mml:mrow></mml:mfenced></mml:mrow></mml:semantics></mml:math></inline-formula>.</p>
Full article ">Figure 9
<p>Scores of <inline-formula><mml:math id="mm402" display="block"><mml:semantics><mml:mrow><mml:mo> </mml:mo><mml:msub><mml:mi>x</mml:mi><mml:mn>1</mml:mn></mml:msub><mml:mo> </mml:mo></mml:mrow></mml:semantics></mml:math></inline-formula> obtained by the IFTPGWHM (<inline-formula><mml:math id="mm403" display="block"><mml:semantics><mml:mrow><mml:mi>t</mml:mi><mml:mo>,</mml:mo><mml:mo> </mml:mo><mml:mi>s</mml:mi><mml:mo>∈</mml:mo><mml:mfenced close="]" open="["><mml:mrow><mml:mn>0.001</mml:mn><mml:mo>,</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:mfenced></mml:mrow></mml:semantics></mml:math></inline-formula>).</p>
Full article ">Figure 10
<p>Scores of <inline-formula><mml:math id="mm404" display="block"><mml:semantics><mml:mrow><mml:mo> </mml:mo><mml:msub><mml:mi>x</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:mo> </mml:mo></mml:mrow></mml:semantics></mml:math></inline-formula> obtained by the IFTPGWHM (<inline-formula><mml:math id="mm405" display="block"><mml:semantics><mml:mrow><mml:mi>t</mml:mi><mml:mo>,</mml:mo><mml:mo> </mml:mo><mml:mi>s</mml:mi><mml:mo>∈</mml:mo><mml:mfenced close="]" open="["><mml:mrow><mml:mn>0.001</mml:mn><mml:mo>,</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:mfenced></mml:mrow></mml:semantics></mml:math></inline-formula>).</p>
Full article ">Figure 11
<p>Scores of <inline-formula><mml:math id="mm406" display="block"><mml:semantics><mml:mrow><mml:mo> </mml:mo><mml:msub><mml:mi>x</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:mo> </mml:mo></mml:mrow></mml:semantics></mml:math></inline-formula> obtained by the IFTPGWHM (<inline-formula><mml:math id="mm407" display="block"><mml:semantics><mml:mrow><mml:mi>t</mml:mi><mml:mo>,</mml:mo><mml:mo> </mml:mo><mml:mi>s</mml:mi><mml:mo>∈</mml:mo><mml:mfenced close="]" open="["><mml:mrow><mml:mn>0.001</mml:mn><mml:mo>,</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:mfenced></mml:mrow></mml:semantics></mml:math></inline-formula>).</p>
Full article ">Figure 12
<p>Scores of <inline-formula><mml:math id="mm408" display="block"><mml:semantics><mml:mrow><mml:mo> </mml:mo><mml:msub><mml:mi>x</mml:mi><mml:mn>4</mml:mn></mml:msub><mml:mo> </mml:mo></mml:mrow></mml:semantics></mml:math></inline-formula> obtained by the IFTPGWHM (<inline-formula><mml:math id="mm409" display="block"><mml:semantics><mml:mrow><mml:mi>t</mml:mi><mml:mo>,</mml:mo><mml:mo> </mml:mo><mml:mi>s</mml:mi><mml:mo>∈</mml:mo><mml:mfenced close="]" open="["><mml:mrow><mml:mn>0.001</mml:mn><mml:mo>,</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:mfenced></mml:mrow></mml:semantics></mml:math></inline-formula>).</p>
Full article ">
20 pages, 2921 KiB  
Article
Evaluation of Safety Degree at Railway Crossings in Order to Achieve Sustainable Traffic Management: A Novel Integrated Fuzzy MCDM Model
by Aleksandar Blagojević, Sandra Kasalica, Željko Stević, Goran Tričković and Vesna Pavelkić
Sustainability 2021, 13(2), 832; https://doi.org/10.3390/su13020832 - 15 Jan 2021
Cited by 42 | Viewed by 4089
Abstract
Sustainable traffic system management under conditions of uncertainty and inappropriate road infrastructure is a responsible and complex task. In Bosnia and Herzegovina (BiH), there is a large number of level crossings which represent potentially risky places in traffic. The current state of level [...] Read more.
Sustainable traffic system management under conditions of uncertainty and inappropriate road infrastructure is a responsible and complex task. In Bosnia and Herzegovina (BiH), there is a large number of level crossings which represent potentially risky places in traffic. The current state of level crossings in BiH is a problem of the greatest interest for the railway and a generator of accidents. Accordingly, it is necessary to identify the places that are currently a priority for the adoption of measures and traffic control in order to achieve sustainability of the whole system. In this paper, the Šamac–Doboj railway section and passive level crossings have been considered. Fifteen different criteria were formed and divided into three main groups: safety criteria, road exploitation characteristics, and railway exploitation characteristics. A novel integrated fuzzy FUCOM (full consistency method)—fuzzy PIPRECIA (pivot pairwise relative criteria importance assessment) model was formed to determine the significance of the criteria. When calculating the weight values of the main criteria, the fuzzy Heronian mean operator was used for their averaging. The evaluation of level crossings was performed using fuzzy MARCOS (measurement of alternatives and ranking according to compromise solution). An original integrated fuzzy FUCOM–Fuzzy PIPRECIA–Fuzzy MARCOS model was created as the main contribution of the paper. The results showed that level crossings 42 + 690 (LC4) and LC8 (82 + 291) are the safest considering all 15 criteria. The verification of the results was performed through four phases of sensitivity analysis: resizing of an initial fuzzy matrix, comparative analysis with other fuzzy approaches, simulations of criterion weight values, and calculation of Spearman’s correlation coefficient (SCC). Finally, measures for the sustainable performance of the railway system were proposed. Full article
Show Figures

Figure 1

Figure 1
<p>The research flow with the proposed methodology.</p>
Full article ">Figure 2
<p>Graphical representation of the Šamac-Doboj section with the structure of all level crossings.</p>
Full article ">Figure 3
<p>Overview of level crossings considered in the multi-criteria decision-making (MCDM) model.</p>
Full article ">Figure 4
<p>The total number of serious accidents, accidents, incidents, fatalities, and injuries in the last five years.</p>
Full article ">Figure 5
<p>Steps of the fuzzy MARCOS (measurement of alternatives and ranking according to compromise solution) method.</p>
Full article ">Figure 6
<p>Results of sensitivity analysis when changing the size of the initial matrix.</p>
Full article ">Figure 7
<p>Comparative analysis with other fuzzy MCDM approaches.</p>
Full article ">Figure 8
<p>Calculated WS coefficient of rankings similarity in comparative analysis.</p>
Full article ">Figure 9
<p>Results of sensitivity analysis in simulation of weight values of criteria through 30 scenarios.</p>
Full article ">Figure 10
<p>Spearman’s correlation coefficient (SCC) and WS for obtained ranks through simulated values of criterion weights in 30 scenarios.</p>
Full article ">
Back to TopTop