Journal of Intelligent & Fuzzy Systems - Volume 27, issue 6

Authors: Saeid, Arsham Borumand | Motamed, Somayeh

Article Type: Research Article

Abstract: In this paper we introduce the notion of obstinate filter in BL-algebra A and we state and prove some theorems which determine the relationship between this notion and other types of filters of a BL-algebra and by some examples we show that this notion is different. Also, we prove that if F is an obstinate filter, then F is a Boolean filter hence A/F is a Boolean algebra. Finally, we construct some algorithms for studying the structure of the finite BL-algebras and filters in finite BL-algebras.

Keywords: BL-algebra, (obstinate, implicative, positive implicative, normal fantastic) Filter, Gödel-part, Gödel algebra

DOI: 10.3233/IFS-141254

Citation: Journal of Intelligent & Fuzzy Systems, vol. 27, no. 6, pp. 2949-2957, 2014

Authors: Khayat, Omid | Rahatabad, Fereidoun Nowshiravan | Siahi, Mehdi | Azadbakht, Bakhtiar

Article Type: Research Article

Abstract: In this paper an Evolutionary-based hybrid thresholding method is presented and implemented on nano-scale light microscopic images. Because of background non-uniform illumination, Segmentation of nano-scale light microscopic images is a hard task in real world, and also fundamental task in image processing. An adaptive and efficient thresholding method based on image spatial correlation histogram and Shanbag entropy is proposed in this paper. Genetic algorithm as a parameter optimizing tool is also employed to fine-tune the parameters and coefficients. The microscopic nano-scale images of rat prostate cancer cells with the spatial resolution of few tens of nanometers and nuclear track images …(few tens to few hundred nanometers in spatial resolution) are segmented by the proposed thresholding method and the misclassification error and track detection rate are used as the criteria for evaluation purpose. The results exhibit the efficiency and capability of the proposed method in thresholding the real world image dataset. Show more

Keywords: Image thresholding, spatial correlation histogram, shanbag entropy, genetic algorithm, nano-scale light microscopic images

DOI: 10.3233/IFS-141255

Citation: Journal of Intelligent & Fuzzy Systems, vol. 27, no. 6, pp. 2959-2967, 2014

Authors: Liao, Huchang | Xu, Zeshui | Xia, Meimei

Article Type: Research Article

Abstract: Interval-valued intuitionistic fuzzy preference relation (IVIFPR) is an important structure in representing fuzzy information comprehensively. This paper focuses on the multiplicative consistency of the IVIFPR. Some concepts, such as the approximate multiplicative consistent IVIFPR, the perfect multiplicative consistent IVIFPR and the acceptable multiplicative consistent IVIFPR are defined. Then, a desirable property of multiplicative consistent IVIFPR is investigated. Two algorithms are developed to construct the approximate/perfect multiplicative consistent IVIFPR. Since inconsistent IVIFPR is common but unreasonable in deriving the priorities of an IVIFPR, an iterative procedure is proposed to improve the consistency of an inconsistent IVIFPR. Furthermore, a convergent approach is …developed for group decision making with IVIFPRs. Several numerical examples are given to illustrate the validity and applicability of the algorithms and procedures. Show more

Keywords: Group decision making, interval-valued intuitionistic fuzzy preference relation, multiplicative consistency

DOI: 10.3233/IFS-141256

Citation: Journal of Intelligent & Fuzzy Systems, vol. 27, no. 6, pp. 2969-2985, 2014

Authors: Zaheriani, Seyed Yashar | Zahiri, Omid

Article Type: Research Article

Abstract: The aim of this paper is to introduce and investigate (bounded commutative) monadic BE-algebras. It's proved that for each m-relatively complete subalgebra of a bounded commutative monadic BE-algebra, we can defined a bounded commutative monadic BE-algebra, moreover, each bounded commutative monadic BE-algebra is of this form. Also, some results about filters and congruences on a bounded commutative monadic BE-algebra are stated and a relation between bounded commutative monadic BE-algebras and monadic bounded residuated lattices is obtained.

Keywords: Monadic, BE-algebra, relatively complete subalgebra, congruence, m-filter

DOI: 10.3233/IFS-141257

Citation: Journal of Intelligent & Fuzzy Systems, vol. 27, no. 6, pp. 2987-2995, 2014

Authors: Borzooei, R.A. | Dudek, W.A. | Radfar, A. | Zahiri, O.

Article Type: Research Article

Abstract: We describe relations between hyper MV-algebras and hyper K-algebras and prove that a finite hyper MV-algebra satisfying the condition $0\CirclePlus x = \{x\}$ , used by many authors, is in fact an ordinary MV-algebra. We also characterize relations between the main types of deductive systems of hyper MV-algebras.

Keywords: (proper) hyper MV-algebra, hyper K-algebra, deductive system

DOI: 10.3233/IFS-141258

Citation: Journal of Intelligent & Fuzzy Systems, vol. 27, no. 6, pp. 2997-3005, 2014

Authors: Hwang, Yan-An | Liao, Yu-Hsien

Article Type: Research Article

Abstract: This paper extends the solution concept of the core for cooperative games to fuzzy games by taking into consideration the activity levels, which we term the core configuration. Unlike the core introduced by Aubin in 1981, the core configuration has an inherently inessential games property. Moreover, we propose a necessary and sufficient condition to investigate the non-emptiness of the core configuration. Based on the properties of consistency and its converse, an axiomatization of the core configuration is also proposed.

Keywords: Fuzzy games, the core configuration, inessential games

DOI: 10.3233/IFS-141259

Citation: Journal of Intelligent & Fuzzy Systems, vol. 27, no. 6, pp. 3007-3014, 2014

Authors: Yaqoob, Naveed | Aslam, Muhammad | Davvaz, Bijan | Ghareeb, A.

Article Type: Research Article

Abstract: The theory of bipolar fuzzy sets introduced by Lee [9] has been applied to many branches of mathematics. In this paper, we initiate a study on bipolar fuzzy sets in Γ-semihypergroups. We define bipolar fuzzy left (right, bi-, interior, (1,2)-) Γ-hyperideals and explore some related properties. We use these bipolar fuzzy Γ-hyperideals to characterize some classes of Γ-semihypergroups. We consider the Γ-semihypergroup $\underline{\mathcal{H}}$ of the bipolar fuzzy points of a Γ-semihypergroup H to discuss the relation between the bipolar fuzzy sub Γ-semihypergroup (left, right, bi-, interior, (1,2)-) Γ-hyperideal and the subsets of $\underline{\mathcal{H}}$ in a (regular) …Γ-semihypergroup. In the end, we discuss in detail a number of results on homomorphic images and preimages of bipolar fuzzy Γ-hyperideals. Show more

Keywords: Γ-semihypergroups, bipolar fuzzy sets, bipolar fuzzy Γ-hyperideals

DOI: 10.3233/IFS-141260

Citation: Journal of Intelligent & Fuzzy Systems, vol. 27, no. 6, pp. 3015-3032, 2014

Authors: Mahdizadeh, M. | Eftekhari, M.

Article Type: Research Article

Abstract: In this paper, a design methodology is proposed for generating a fuzzy rule-based classifier for highly imbalanced datasets (only binary classification problems). The classifier is based on sugeno-type fuzzy inference system (FIS) and is generated using subtractive clustering, differential evolution (DE) and multi-gene genetic programming (MGGP) to obtain fuzzy rules. Subtractive clustering and DE are utilized for producing antecedents of rules and MGGP is employed for generating the functions in the consequence parts of rules. Feature selection is utilized as an important pre-processing step for dimension reduction. Performance of the proposed method is compared with some fuzzy rule-based classification approaches …taken from the literature. The experiments are performed over 22 highly imbalanced datasets from KEEL dataset repository; the classification results are evaluated using AUC as a performance measure. Some statistical non-parametric tests are used to compare classification performance of different methods in different datasets. The obtained results reveal that the proposed classifier outperforms other methods in terms of AUC values. Show more

Keywords: Fuzzy inference system, differential evolution, subtractive clustering, multi-gene genetic programming

DOI: 10.3233/IFS-141261

Citation: Journal of Intelligent & Fuzzy Systems, vol. 27, no. 6, pp. 3033-3046, 2014

Authors: Pessin, Gustavo | Souza, Jefferson R. | Osório, Fernando S. | Faiçal, Bruno S. | Filho, Geraldo P.R. | Ueyama, Jó | Vargas, Patrícia A. | Wolf, Denis F.

Article Type: Research Article

Abstract: This work addresses the evolution of an Artificial Neural Network (ANN) to assist in the problem of autonomous navigation of a vehicle in urban environments. We propose a system architecture based on the use of two ANNs, one is trained for image processing, in charge of road recognition and employing template matching. The other ANN is evolved to perform the navigation control. The paper focuses on the evolved ANN, which provides steering and speed control to the autonomous vehicle, corroborating with the Evolutionary Robotic research area and showing its practical viability. The proposed system was tested in several experiments, evaluating …not only the impact of different evolutionary computation parameters but also the role of the transfer functions on the evolution of the ANN. Results show that slight variations in the parameters lead to huge differences on the accuracy of the evolutionary process. Show more

Keywords: Autonomous navigation, Evolutionary Artificial Neural Network

DOI: 10.3233/IFS-141262

Citation: Journal of Intelligent & Fuzzy Systems, vol. 27, no. 6, pp. 3047-3058, 2014

Authors: Aghazadeh, Hadi | Zare, Alireza | Akbari-Zadeh, Mohammad-Reza | Zare, Jafar

Article Type: Research Article

Abstract: In this paper, a novel two-stage modification firefly Optimization algorithm (MFA) is proposed for the placement of Proton Exchange Membrane Fuel Cell Power Plants (PEM-FCPP) in distribution systems. FCPPs, as Distributed Generation (DG) units, can be taken into account as combined sources of Heat, Power, and Hydrogen (CHPH). The overall system efficiency can be improved by CHPH operation of FCPPs. Also, it will produce hydrogen which can be stored for the future use of FCPPs or can be sold to make a profit. The objective functions under investigation consist of the operating costs of electrical energy generation of distribution substations …and FCPPs, the voltage deviation and the total emission. In this paper, only the placement of CHPH FCPPs is considered while investment cost of devices is not considered. Owing to the different, non-commensurable and nonlinear objectives, using conventional single-objective approaches makes difficulties to solve the problem. Other than that, the placement of FCPP in distribution systems is a mixed integer problem. Therefore, in order to overcome these problems, the firefly algorithm is utilized. In addition, a new two-stage modification is employed to search the problem area globally. Due to the multi-objective characteristic of the optimization, implementing the proposed MFA leads to obtain a set of solution in the problem instead of only one. The proposed algorithm is tested on a 69-bus distribution system to validate the effectiveness and impressiveness of the approach. Show more

Keywords: Fuel cell power plant (FCPP), combined heat, power and hydrogen (CHPH), multi-objective optimization, distributed generation (DG)

DOI: 10.3233/IFS-141263

Citation: Journal of Intelligent & Fuzzy Systems, vol. 27, no. 6, pp. 3059-3066, 2014