7th International Conference on Intelligent and Fuzzy Systems, INFUS 2025, İstanbul, Türkiye, 29 - 31 Temmuz 2025, cilt.1531 LNNS, ss.771-777, (Tam Metin Bildiri)
Marketplace selection is of critical importance for the success of businesses and more than one criterion should be taken into consideration in this process. There are various multi-criteria decision-making studies in this field. In today’s world, commerce has become electronic and the concept of e-commerce has developed and marketplace selection is also needed for e-commerce. Since there is a lot of uncertainty and complexity in e-commerce marketplace selection and there are some linguistic criteria, it is considered suitable for the fuzzy logic approach. Various fuzzy numbers are used in multi-criteria decision-making problems. There are some studies in the literature on Pythagorean fuzzy numbers, what is one of the fuzzy set extensions. This study will solve the e-commerce marketplace selection problem, which is a multi-criteria decision-making problem, by using the trapezoidal Pythagorean fuzzy TOPSIS method. No such study has been found in the literature. In this respect, the study will be a first in the literature.