Khóa luận tốt nghiệp evaluating and selecting green suppliers by intergration of neutrosophic ahp topsis approach a case of the fast fashion industry

HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY AND EDUCATION FACULTY FOR HIGH QUALITY TRAINING THESIS EVALUATING AND SELECTING GREEN SUPPLIERS BY INTEGRATION OF NEUTROSOPHIC AHP-TOPSIS APPROACH: A CASE OF THE FAST-FASHION INDUSTRY LE THI QUYNH GIANG Student ID: 19124057 Major: INDUSTRIAL MANAGEMENT Advisor: Dr NGUYEN PHAN ANH HUY Ho Chi Minh City, May 2023 COMMENTS OF ADVISOR HCMC, DD/MM/YYYY Advisor i COMMENTS OF REVIEWER HCMC, DD/MM/YYYY Advisor ii ACKNOWLEDGEMENTS During the period of completing the thesis, I received a lot of support from the lecturers Through this, I would like to express my sincere thanks to the lecturers of Ho Chi Minh University of Technology and Education for creating conditions as well as teaching me useful knowledge and things These pieces of knowledge are a solid foundation for me to complete this thesis, as well as the knowledge to step into my future career I would like to thank the group of experts who supported the author, facilitated, and wholeheartedly helped the author to carry out the thesis smoothly Sincere thanks to Dr Nguyen Phan Anh Huy for helping and guiding me in the process of making and completing this thesis Finally, I would like to wish all of you who have supported me in the process of doing the thesis to have more health and better development We wish you much success in your noble career and in life Best regards! HCMC, 04/05/2023 Student name Le Thi Quynh Giang iii LIST OF ABBREVIATION Abbreviation Explanation AHP The Analytic Hierarchy Process IVN Interval-valued Neutrosophic NIS Negative Ideal Solution PIS Positive Ideal Solution TOPSIS The Technique for Order of Preference by Similarity to Ideal Solution iv LIST OF TABLES Table Saaty’s pairwise comparison scale 11 Table 2 The RI value corresponds to the number of factors n 12 Table Summary of related work in green supplier selection 14 Table Criteria for evaluating and selecting green suppliers 18 Table Alternatives determination 20 Table 3 IVN number scales of linguistic variables 24 Table Scale for IVN values for alternative evaluation 26 Table Group of experts participating in the interview 28 Table Aggregated pairwise comparison matrix for main criteria 29 Table Pairwise comparison matrix normalization for main criteria 29 Table 4 Importance weights for main criteria 29 Table Aggregated pairwise comparison matrix for sub-criteria (C11-C13) 30 Table Pairwise comparison matrix normalization for sub-criteria (C11-C13) 30 Table Aggregated pairwise comparison matrix for sub-criteria (C21-C25) 31 Table Pairwise comparison matrix normalization for sub-criteria (C21-C25) 31 Table Aggregated pairwise comparison matrix for sub-criteria (C31-C33) 32 Table 10 Pairwise comparison matrix normalization for sub-criteria (C31-C33) 32 Table 11 Importance weight for sub-criteria 33 Table 12 Global weight for each criteria 34 Table 13 Aggregate the decision matrix for the criteria (C11 - C23) 35 Table 14 Aggregate the decision matrix for the criteria (C24 - C33) 35 Table 15 IVN normalized decision matrix for the criteria (C11 - C23) .36 Table 16 IVN normalized decision matrix for the criteria (C24 - C33) .36 v Table 17 IVN weight normalized decision matrix for the criteria (C11 - C23) 37 Table 18 IVN weight normalized decision matrix for the criteria (C24 - C33) 37 Table 19 IVN Positive ideal solution and IVN Negative ideal solution 38 Table 20.Euclidean distance from IVN-PIS and IVN-NIS 38 Table 21.Ranking green supplier 39 Table 22.Hamming distance from IVN-PIS and IVN-NIS 40 Table 23.Risk ranking of the supplier according to sensitivity analysis 41 vi LIST OF FIGURES Figure From crisp sets to neutrosophic sets Figure 2 Structure diagram of AHP 10 Figure Flowchart of AHP method 12 Figure Flowchart of TOPSIS method 13 Figure Research process 16 Figure Hierarchical structure of application 21 Figure Separation measure and the revised closeness for each supplier 39 Figure Sensitivity analysis 41 vii TABLE OF CONTENT COMMENTS OF ADVISOR i COMMENTS OF REVIEWER ii ACKNOWLEDGEMENTS iii LIST OF ABBREVIATION iv LIST OF TABLES v LIST OF FIGURES vii TABLE OF CONTENT viii CHAPTER 1: INTRODUCTION 1.1 Reasons for choosing this topic 1.2 Research objectives 1.3 Research object and scope 1.4 Research methodology 1.5 The structure of the subject CHAPTER 2: LITERATURE REVIEW 2.1 Green supply chain management 2.2 Green supplier selection 2.3 Fast-fashion industry 2.4 Interval-Valued Neutrosophic Sets 2.5 The Analytic Hierarchy Process (AHP) 10 2.6 The Technique for Order of Preference by Similarity to Ideal Solution 13 2.7 Summary of related work 13 CHAPTER 3: METHODOLOGY 16 3.1 Research process 16 3.2 The proposed method 17 viii 3.2.1 Criteria determination 17 3.3.2 Alternatives determination 20 3.3.3 Hierarchical structure 20 3.3.4 Interval-valued neutrosophic AHP 22 3.3.4.1 Preliminaries of interval-valued neutrosophic 22 3.3.4.2 Steps in interval-valued neutrosophic AHP 24 3.3.4 Integration of Interval-valued neutrosophic AHP-TOPSIS 26 CHAPTER 4: RESULT 28 4.1 Data description 28 4.2 Data analytic result 29 4.2.1 Interval-valued neutrosophic AHP 29 4.2.2 Interval-valued neutrosophic TOPSIS 34 4.2.3 Sensitivity analysis 40 CHAPTER 5: CONCLUSION 43 5.1 Conclusion 43 5.2 Implication 44 REFERENCES 45 APPENDIX 52 APPENDIX 54 ix