The increasing complexity of global supply chains has made third-party logistics (3PL) service providers essential for companies seeking operational flexibility and cost efficiency. On-time delivery, a critical performance metric, directly impacts customer satisfaction, long-term business partnerships, and corporate reputation. However, challenges such as subcontractor management, subjective performance evaluation, and uncertainty in data significantly affect the reliability of performance assessments. This study proposes a novel decision support system utilizing Interval-Valued Spherical Fuzzy Analytic Hierarchy Process (IVSF-AHP) and Interval-Valued Spherical Fuzzy Technique for Order of P... More >

Integration of distributed generation and renewable energy resources in contemporary power systems necessitates sophisticated control techniques to maintain efficiency and stability. Adaptive fuzzy control (AFC) mechanisms introduce a smart methodology for handling uncertainty and variability in virtual power plants (VPPs) and smart grids. AFC improves immunity against voltage and frequency fluctuations through dynamic adaptation of control parameters as per real-time grid conditions. This strategy allows for effective load balancing, demand response, and fault tolerance, minimizing power losses and enhancing overall energy efficiency. AFC uses fuzzy logic concepts to make decisions in real... More >

This inaugural editorial outlines the evolution of fuzzy set theory from one-dimensional to multi-dimensional frameworks. It highlights key extensions—such as intuitionistic, Pythagorean, and spherical fuzzy sets—and their growing role in modeling uncertainty with greater flexibility. The editorial sets the stage for the IECE Transactions on Advanced Fuzzy Systems, a new journal dedicated to publishing high-quality research on fuzzy set theory and its advanced extensions. More >