Economic load Dispatch (ED) is one of the most important problems in power system operation. It is a nonlinear non-convex problem which stochastic search algorithms seem to be appropriate solutions. This study tries t...
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ISBN:
(纸本)9781467307826
Economic load Dispatch (ED) is one of the most important problems in power system operation. It is a nonlinear non-convex problem which stochastic search algorithms seem to be appropriate solutions. This study tries to propose a new method which is derived from the combination of two different algorithms, clonal as the basic algorithm and PSO. The proposed method has been tested on two different systems containing thirteen and forty generators and obtained results have been compared with the results of other stochastic search algorithms. The fascinating results obtained from the comparison ensure the efficiency of the new proposed method.
An improved clonal selection algorithm is proposed for the two shortcomings of the traditional *** contents are as follows:An adaptive improved mutation operator is *** we put forward an improved selection operator wh...
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An improved clonal selection algorithm is proposed for the two shortcomings of the traditional *** contents are as follows:An adaptive improved mutation operator is *** we put forward an improved selection operator which takes into account two factors of affinity and *** simulation results show the improved algorithm is superior to the traditional clonal selection algorithm in convergence speed and optimizing result.
Hub location problem is an NP-hard problem, it deals with finding the location of hub facilities and allocating the demand nodes to these hub facilities so as to effectively route the demand between any origin-destina...
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ISBN:
(纸本)9781538678374
Hub location problem is an NP-hard problem, it deals with finding the location of hub facilities and allocating the demand nodes to these hub facilities so as to effectively route the demand between any origin-destination pair. In this paper, we study the Uncapacitated Single Allocation p-Hub Median Problem (USApHMP) variant of the hub location problems. Thus, we present a new and robust solution based on artificial immune system (AIS) framework for this problem. The outcome of this paper is a new approach in the form of clonal selection algorithm (CSA) to solve this location-allocation problem. The algorithm maintains the feasibility of individuals by using a specific representation. To the best of our knowledge, this methodology of solving the USApHMP is introduced to the literature for the first time.
Security assurance in a computer system can be viewed as distinguishing between self and non-self. Artificial Immune Systems (AIS) are a class of machine learning (ML) techniques inspired by the behavior of innate bio...
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ISBN:
(纸本)9781538674710
Security assurance in a computer system can be viewed as distinguishing between self and non-self. Artificial Immune Systems (AIS) are a class of machine learning (ML) techniques inspired by the behavior of innate biological immune systems, which have evolved to accurately classify self-behavior from non-self-behavior. This work aims to leverage AIS-based ML techniques for identifying certain behavioral traits in high level hardware descriptions, including unsafe or undesirable behaviors, whether such behavior exists due to human error during development, or due to intentional, malicious circuit modifications, known as hardware Trojans, without the need for a golden reference model. We explore the use of Negative selection and clonalselection, which have historically been applied to malware detection on software binaries, to detect potentially unsafe or malicious behavior in hardware. We present a software tool which analyzes Trojan-inserted benchmarks, extracts their control and data-flow graphs (CDFGs), and uses this to train an AIS behavior model, against which new hardware descriptions may be tested. The proposed model is capable of detecting the specified (Trojan or Trojan-like) behavior with an accuracy of -85% and an average false negative rate of 12.6% for Negative selection and 12.8% for clonalselection.
In this paper, a novel immune multl-populanon firefly algorithm (IMPFA) is presented to solve multimodal function optlmlzatton problems. The proposed algorithm integrates multi population firefly algorithm (MPFA) with...
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ISBN:
(纸本)9781538665657
In this paper, a novel immune multl-populanon firefly algorithm (IMPFA) is presented to solve multimodal function optlmlzatton problems. The proposed algorithm integrates multi population firefly algorithm (MPFA) with non-uniform mutation clonal selection algorithm (NUMCSA). In each loop iteration, firstly, the MPFA based on multl-populatten learnmg mechanism is used to search globally in the feasible region, and then the NUM CSA is utilized to search locally for improving the accuracy of the sub-optlmal solutions obtained with MPFA. Simulation results show that the IMPFA is extremely effective and increases the precision of solutions.
An efficient optimization procedure based on the clonal selection algorithm (CSA) is proposed for the solution of short-term hydrothermal scheduling problem. CSA, a new algorithm from the family of evolutionary comput...
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An efficient optimization procedure based on the clonal selection algorithm (CSA) is proposed for the solution of short-term hydrothermal scheduling problem. CSA, a new algorithm from the family of evolutionary computation, is simple, fast and a robust optimization tool for real complex hydrothermal scheduling problems. Hydrothermal scheduling involves the optimization of non-linear objective function with set of operational and physical constraints. The cascading nature of hydro-plants, water transport delay and scheduling time linkage, power balance constraints, variable hourly water discharge limits, reservoir storage limits, operation limits of thermal and hydro units, hydraulic continuity constraint and initial and final reservoir storage limits are fully taken into account. The results of the proposed approach are compared with those of gradient search (GS), simulated annealing (SA), evolutionary programming (EP), dynamic programming (DP), non-linear programming (NLP), genetic algorithm (GA), improved fast EP (IFEP), differential evolution (DE) and improved particle swarm optimization (IPSO) approaches. From the numerical results, it is found that the CSA-based approach is able to provide better solution at lesser computational effort. (c) 2011 Elsevier Ltd. All rights reserved.
A clonal selection algorithm (clonalG) inspires from clonalselection principle used to explain the basic features of an adaptive immune response to an antigenic stimulus. It takes place in various scientific applicat...
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A clonal selection algorithm (clonalG) inspires from clonalselection principle used to explain the basic features of an adaptive immune response to an antigenic stimulus. It takes place in various scientific applications and it can be also used to determine the membership functions in a fuzzy system. The aim of the study is to adjust the shape of membership functions and a novice aspect of the study is to determine the membership functions. Proposed method has been implemented using a developed clonalG program for a multiple input-output (MI-O) fuzzy system. In this study. GA and binary particle swarm optimization (BPSO) are used for implementing the proposed method as well and they are compared. It has been shown that using clonal selection algorithm is advantageous for finding optimum values of fuzzy membership functions (C) 2010 Elsevier Ltd. All rights reserved.
A spectral element model updating procedure is presented to identify damage in a structure using Guided wave propagation results. Two damage spectral elements (DSE1 and DSE2) are developed to model the local (cracks i...
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A spectral element model updating procedure is presented to identify damage in a structure using Guided wave propagation results. Two damage spectral elements (DSE1 and DSE2) are developed to model the local (cracks in reinforcement bar) and global (debonding between reinforcement bar and concrete) damage in one-dimensional homogeneous and composite waveguide, respectively. Transfer matrix method is adopted to assemble the stiffness matrix of multiple spectral elements. In order to solve the inverse problem, clonal selection algorithm is used for the optimization calculations. Two displacement-based functions and two frequency-based functions are used as objective functions in this study. Numerical simulations of wave propagation in a bare steel bar and in a reinforcement bar without and with various assumed damage scenarios are carried out. Numerically simulated data are then used to identify local and global damage of the steel rebar and the concrete-steel interface using the proposed method. Results show that local damage is easy to be identified by using any considered objective function with the proposed method while only using the wavelet energy-based objective function gives reliable identification of global damage. The method is then extended to identify multiple damages in a structure. To further verify the proposed method, experiments of wave propagation in a rectangular steel bar before and after damage are conducted. The proposed method is used to update the structural model for damage identification. The results demonstrate the capability of the proposed method in identifying cracks in steel bars based on measured wave propagation data.
The prediction of carbon dioxide (CO2) emissions from petroleum consumption inspired and motivated this research. Over the years, the rate of emissions of CO2 continues to multiply, resulting in global warming. This p...
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ISBN:
(纸本)9783319512815;9783319512792
The prediction of carbon dioxide (CO2) emissions from petroleum consumption inspired and motivated this research. Over the years, the rate of emissions of CO2 continues to multiply, resulting in global warming. This paper thus proposes the use of clonalselection theory inspired algorithms;clonalG and AIRS to forecast global CO2 emissions. The K-means algorithm divides the data into groups of similar and meaningful patterns. Comparative simulations with multi-layer Perceptron, IBk, fuzzy-rough nearest neighbor, and vaguely quantified nearest neighbor reveal that the clonalG and AIRS produced outstanding results, and are able to generate highest detection rates and lowest false alarm rates. As such, gathering useful information with the accurate prediction of CO2 emissions can help to reduce the emission of CO2 contributions to global warming which assist in policies on climate change.
Particle swarm optimisation (PSO) has attracted much attention and is used to wide applications in different fields in recent years because of its simple concept, easy implementation and quick convergence. However, it...
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Particle swarm optimisation (PSO) has attracted much attention and is used to wide applications in different fields in recent years because of its simple concept, easy implementation and quick convergence. However, it suffers from premature convergence since the population's diversity loses quickly. In this paper, a novel and efficient variant of PSO named DNIPSO is proposed which help the diversity of the swarm be preserved via the Newman-Watts small world network topology and the immune learning operator. Initially the topology of the population is the regular network. Then the Newman-Watts small world topology is formed gradually and the swarm evolves simultaneously. The optimisation process contains the population structure dynamics and particle immune learning two parts which mutually promoted effectively in whole population. Furthermore, the immune operator which is based on the clonalselection theory achieves a trade-off between exploration and exploitation abilities. Numerical experiments both on continuous unconstrained and constrained benchmark functions are used to test the performance of DNIPSO. Simulation results show it is effective and robust.
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