Journal of Intelligent & Fuzzy Systems - Volume 43, issue 1

Authors: Yang, Shaojun | Huang, Xinyi

Article Type: Research Article

Abstract: The numbers of Helly, Carathéodory and Radon are a central theme in classic convex spaces and each of them is invariant under isomorphism. The theory of M -fuzzifying convex spaces is an active research field since it is presented. This paper focus on convex invariants of M -fuzzifying convex spaces. The degrees of Helly independent, Carathéodory independent and Radon independent of non-empty set are defined in the framework of M -fuzzifying convex spaces. By those definitions, we introduce the Helly number, Carathéodory number and Radon number of M -fuzzifying convex spaces. Finally, we inspect M -fuzzifying topology and M -fuzzifying …JHC which are characterized by convex invariants of M -fuzzifying convex spaces. Show more

Keywords: Helly number, Carathéodory number, Radon number

DOI: 10.3233/JIFS-213081

Citation: Journal of Intelligent & Fuzzy Systems, vol. 43, no. 1, pp. 1077-1090, 2022

Authors: Thangamuthu, Logeswaran | Albert, Johny Renoald | Chinnanan, Kalaivanan | Gnanavel, Banu

Article Type: Research Article

Abstract: To minimize real-time errors in a Photovoltaic (PV) system performances must be forecasted through precise simulation design before continuing into a practical application. However, due to the scarcity of data in datasheets and the inherent transcendental connections are between PV current and PV voltage, to determining the Single Diode Model (SDM) parameters becomes a more challenging problems. This paper offers a simulated study of a SDM and Double Diode Model (DDM) solar PV system under various irradiation represents, and the performance was developed by incorporating an optimization-based Maximum Power Point (MPP) tracking techniques. According to the present simulation presented in …this article, a mathematical model for a SDM/DDM as well as optimization methodologies has been estimated MATLAB platform. The present MPP circuit model designed and compared with BAT optimization algorithms. The nonlinear relationship between Voltage (V) - Current (I) and Voltage (V) –Power (W) acknowledged as characteristic curves for different temperature (∘c) and irradiance (W/m2 ) values are verified in numerical simulation results. MPP tracking power and efficiency are examined for maximum power (Pmax ) to test the optimization based system. The simulation results show that the BAT optimization model was achieved the highest tracking efficiency better than other heuristic algorithms. Show more

Keywords: Photovoltaic, maximum power point, BAT Optimization, firefly algorithm, solar irradiations

DOI: 10.3233/JIFS-213241

Citation: Journal of Intelligent & Fuzzy Systems, vol. 43, no. 1, pp. 1091-1102, 2022

Authors: Ali, Zeeshan | Mahmood, Tahir | Panityakul, Thammarat

Article Type: Research Article

Abstract: Bonferroni means (BM) operator is the extended form of the arithmetic mean operator, used for simplifying non-dominant and non-feasible problems diagnosed in genuine life scenarios. A lot of aggregation operators are the specific parts of the BM operators under the consideration of different values of parameters which are the main parts of the BM operators. In the presence of the BM operator and a very well-known conception in the scenario of fuzzy set, called complex Pythagorean fuzzy (CPF) setting, the objective of this scenario is to diagnose the CPF power BM (CPFPBM) operator and utilize their beneficial results with important …properties. Moreover, a multi-attribute decision-making (MADM) technique is evaluated in the presence of invented operators for CPF settings. In the last of this study, we diagnosed the superiority and efficiency of the invented works with the help of sensitive analysis and graphical illustrations to enhance the gap of the research works. Show more

Keywords: Complex pythagorean fuzzy sets, power Bonferroni mean operators, decision-making methods

DOI: 10.3233/JIFS-212546

Citation: Journal of Intelligent & Fuzzy Systems, vol. 43, no. 1, pp. 1103-1121, 2022

Authors: Liu, Nana | Wang, Chang

Article Type: Research Article

Abstract: In this paper, we show that the inappropriateness of Example 3.10 and the error of Theorem 4.7 in [M.Balamurugan, G.Balasubramanian, C.Ragavan. Intuitionistic Fuzzy Soft Ideals in BCK/BCI-algebras. Materials today: proceedings 16(2019)496-503.], then give a more perfect example and a counterexample respectively.

Keywords: Intuitionistic fuzzy soft BCK/BCI-algebra, intuitionistic fuzzy soft ideal, intuitionistic fuzzy soft p-ideal

DOI: 10.3233/JIFS-212589

Citation: Journal of Intelligent & Fuzzy Systems, vol. 43, no. 1, pp. 1123-1127, 2022

Authors: Ahsanullah, T. M. G.

Article Type: Research Article

Abstract: Starting with an approximation space as the underlying structure, we look at the rough uniformity of a topological rough group. Next, taking L as a complete residuated lattice, we consider L -subgroup and normal L -subgroup of a group to create the L -fuzzy upper rough subgroup, and the L -fuzzy lower rough subgroup within the framework of the L -fuzzy approximation spaces. Here we particularly focus on a category of L -fuzzy upper rough subgroups, and a special kind of category of L -closure groups that arises naturally. We introduce the notion of the L -fuzzy approximation group, …and study some of its properties including the usual function space structure for the L -fuzzy approximation spaces. Furthermore, using the notion of an L -fuzzy upper approximation operator, we investigate some categorical connection between the L -fuzzy approximation groups, and the L -closure groups. In a similar fashion, using an L -fuzzy lower approximation operator, we investigate the categorical connection between the L -fuzzy approximation groups, and the L -interior groups. Show more

Keywords: Approximation space, rough group, topological rough group, rough uniformity, L-fuzzy approximation space, L-fuzzy upper rough subgroup, L-fuzzy lower rough subgroup, L-fuzzy approximation group, L-closure group, L-interior group, category theory

DOI: 10.3233/JIFS-212634

Citation: Journal of Intelligent & Fuzzy Systems, vol. 43, no. 1, pp. 1129-1139, 2022

Authors: Feng, Xiangqian | Shi, Hui | Wei, Cuiping

Article Type: Research Article

Abstract: As a core resource of the company, employees play a major role to implement green management related behaviors in enterprises. Management department is also working hard to improve the ability of employees to perform these green behaviors for the company’s sustainable development capabilities. This study is the first effort that evaluation of effect factors of employee green behavior ability (EGBA) by intuitionistic fuzzy number-best worst method (IFN-BWM). To reach the study objective, a total of four criteria and twenty-seven sub-criteria for evaluation of EGBA are collected from the existing literatures. Subsequently, the PFN-VIKOR methodology (Pythagorean Fuzzy Number-Visekriterijumska Optimizacija I Kom-promisno …Resenje) is proposed to rank EGBA levels. The results of this study show that employee self-efficacy and employee initiative in learning relevant green knowledge are important factors to enhance EGBA. Moreover, findings confirm that extended fuzzy semantic values and novel algorithm can accurately measure the decision makers’ mind and improve the accuracy of evaluation. This study also provides a framework for managers to evaluate their employee’ green behavior ability. Show more

Keywords: Green behavior, Best-worst method, VIKOR, sustainability development

DOI: 10.3233/JIFS-212660

Citation: Journal of Intelligent & Fuzzy Systems, vol. 43, no. 1, pp. 1141-1162, 2022

Authors: Palanisamy, Rajarathinam | Govindaraj, Vijayakumar | Siddhan, Saravanan | Albert, Johny Renoald

Article Type: Research Article

Abstract: A super-lift mechanism has made tremendous progress in DC/DC conversion technology. In comparison to the asymmetrical form of MLI, the novel Asymmetric Multilevel Inverter (AMLI) technology proposes a minimized number of components. The Fuzzy-PI (Proportional integral) and Modified Genetic Algorithm (MGA) utilizes to minimize the harmonic content considerably using a variety of modulation index and firing angle values in open-loop and closed-loop control. This architecture for designing single-phase 7-level AMLI with an intelligent algorithm proposed for Renewable Energy (RE) applications. This circuit uses a single MOSFET switch with less switching stress and a single DC source. The effectiveness of the …proposed MGA optimization eliminates the lower-order harmonics. MGA and Fuzzy-PI based Distributed Power Flow Intelligent Control (DPFIC) algorithms are applied with multilevel structures while maintaining the fundamental frequency for both MATLAB platform and hardware implementation. During this analysis, the losses is also find to investigate the influence of modulation index and output power factor on inverter efficiency. Simulations and experimental findings confirm the proposed inverter capacity to create high-quality multilayer output voltage. However, the proposed closed loop simulation circuit gives 0.47% minimum THD level, and 10.4% in experimental results. Show more

Keywords: Asymmetric multilevel inverter, modified genetic algorithm, proportional integral, fuzzy logical control, distributed power flow intelligent control

DOI: 10.3233/JIFS-212668

Citation: Journal of Intelligent & Fuzzy Systems, vol. 43, no. 1, pp. 1163-1176, 2022

Authors: Akmal, Muhammad | Zubair, Syed | Jochumsen, Mads | Zia ur rehman, Muhammad | Nlandu Kamavuako, Ernest | Irfan Abid, Muhammad | Niazi, Imran Khan

Article Type: Research Article

Abstract: This article has been retracted. A retraction notice can be found at https://doi.org/10.3233/JIFS-219433 .

DOI: 10.3233/JIFS-212715

Citation: Journal of Intelligent & Fuzzy Systems, vol. 43, no. 1, pp. 1177-1187, 2022

Authors: Guo, Qing | Xin, Xiao Long

Article Type: Research Article

Abstract: Pseudo EQ-algebras were introduced by X.L. Xin as possible algebraic semantics for fuzzy type theory. The main goal of this paper is to investigate pseudo EQ-algebras with internal states. To begin with, we introduce the notion of pseudo EQ-algebras with internal state(simplify, ISPEQ-algebra) and study its properties. Moreover, we discuss the relation between ISPEQ-algebras and states on pseudo EQ-algebras. In the following, we study state filters(simplify S-fliters) and state prefilters(simplify S-prefliters) of ISPEQ-algebras. We construct ISPEQ-algebras from S-fliters and derive congruence relation θ of ISPEQ-algebras. In the end, we give the generating formula of prefilters on residuated pseudo EQ-algebras …and based on that we get the generating formula of S-prefilters on residuated pseudo EQ-algebras. Show more

Keywords: Pseudo EQ-algebra, state operator, S-fliter, S-prefliter, generating formula

DOI: 10.3233/JIFS-212723

Citation: Journal of Intelligent & Fuzzy Systems, vol. 43, no. 1, pp. 1189-1202, 2022

Authors: Yu, Xiaobing | Liu, Zhenjie

Article Type: Research Article

Abstract: Grey Wolf Optimizer (GWO) is competitive to other population-based algorithms. However, considering that the conventional GWO has inadequate global search capacity, a GWO variant based on multiple strategies, i.e., adaptive Evolutionary Population Dynamics (EPD) strategy, differential perturbation strategy, and greedy selection strategy, named as ADGGWO, is proposed in this paper. Firstly, the adaptive EPD strategy is adopted to enhance the search capacity by updating the position of the worst wolves according to the best ones. Secondly, the exploration capacity is extended by the use of differential perturbation strategy. Thirdly, the greedy selection improves the exploitation capacity, contributing to the balance …between exploration and exploitation capacity. ADGGWO has been examined on a suite from CEC2014 and compared with the traditional GWO as well as its three latest variants. The significance of the results is evaluated by two non-parametric tests, Friedman test and Wilcoxon test. Furthermore, constrained portfolio optimization is applied in this paper to investigate the performance of ADGGWO on real-world problems. The experimental results demonstrate that the proposed algorithm, which integrates multiple strategies, outperforms the traditional GWO and other GWO variants in terms of both accuracy and convergence. It can be proved that ADGGWO is not only effective for function optimization but also for practical problems. Show more

Keywords: Multiple strategies, GWO, constrained portfolio optimization

DOI: 10.3233/JIFS-212729

Citation: Journal of Intelligent & Fuzzy Systems, vol. 43, no. 1, pp. 1203-1227, 2022