Logistics distribution locating problem is an important area in Logistics,which select the most reasonable location of distribution centers from many *** paper establish the Cellular PSO algorithm,which combine the pa...
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Logistics distribution locating problem is an important area in Logistics,which select the most reasonable location of distribution centers from many *** paper establish the Cellular PSO algorithm,which combine the particle swarm optimization algorithm and cellular *** algorithm was tested in the simulation experiment,and the result indicate that the Cellular PSO algorithm is a effective method of solving the problem of choosing the distribution centers location which can overcome the low precision of the basic particleswarmoptimization *** additional,the Cellular PSO algorithm has high quality and efficiency of searching.
The fault diagnosis model with support vector regression (SVR) and particle swarm optimization algorithm (POSA) for is proposed. The novel structure model has higher accuracy and faster convergence speed. We construct...
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The fault diagnosis model with support vector regression (SVR) and particle swarm optimization algorithm (POSA) for is proposed. The novel structure model has higher accuracy and faster convergence speed. We construct the network structure, and give the algorithm flow. The impact factor of fault behaviors is discussed. With the ability of strong self-learning and faster convergence, this fault detection method can detect various fault behaviors rapidly and effectively by learning the typical fault characteristic information. Utilizing the character that principal components analysis algorithm can keep the discern ability of original dataset after reduction, the reduces of the original dataset are calculated and used to train individual SVR for ensemble, and consequently, increase the detection accuracy. To validate the effectiveness of the proposed method, simulation experiments are performed based on the electronic circuit dataset. The results show that the proposed method is a promised method owning to its high diversity, high detection accuracy and faster speed in fault diagnosis.
The heat transfer mechanism of thermal radiation is directly related to either the emission and propagation of electromagnetic waves or the transport of photons. Depending on the participation of the medium in space, ...
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The heat transfer mechanism of thermal radiation is directly related to either the emission and propagation of electromagnetic waves or the transport of photons. Depending on the participation of the medium in space, thermal radiation can be classified into two forms, which are surface and gas radiation, respectively. In the present study, unknown surface radiation properties are estimated by an inverse analysis for a surface radiation in an axisymmetric cylindrical enclosure. For efficiency, the repulsive particleswarmoptimization (RPSO) algorithm, which showed an outstanding effectiveness in the previous inverse gas radiation problem, is adopted as an inverse solver. By comparing the convergence rates of an objective function and the estimated accuracies with the results of the hybrid genetic algorithm (HGA) and the particleswarmoptimization (PSO) method, the performance of the RPSO algorithm is verified to be quite an efficient method as the inverse solver when applied to the retrieval of unknown properties of the surface radiation problem. (C) 2015 Elsevier Ltd. All rights reserved.
Query optimization is a Key research topic in the database research area aiming at solving the problem of premature convergence and local optimal trap in the traditional particle swarm optimization algorithm,this Pape...
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Query optimization is a Key research topic in the database research area aiming at solving the problem of premature convergence and local optimal trap in the traditional particle swarm optimization algorithm,this Paper Proposed a novel database query optimizationalgorithm called Hybrid Variable particleswarmoptimization (HV-PSO);Firstly,database query optimization mathematical model is established,then the optimal solution is found by using information transferring and sharing mechanism of *** research has two novelties which contribute to the literature: *** charge of particle inertia weight in the optimization process to accelerate the convergence;*** introduction of "hybrid" variation operator to increase the diversity of ***,the simulation experiments are carried out to test the performance of *** results show that the HV-PSO could solve the deficiency of the traditional particle swarm optimization algorithm,not only improving the database query efficiency,but also obtaining better query ***,it has predominant advantage for querying large relational connections.
In order to overcome the shortage of premature convergence caused by local optimization in the process of global optimization, an adaptive weight particle swarm optimization algorithm with constriction factor is propo...
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In order to overcome the shortage of premature convergence caused by local optimization in the process of global optimization, an adaptive weight particle swarm optimization algorithm with constriction factor is proposed combined with an analysis of convergence of particle swarm optimization algorithm. The value of the inertia weight is set according to dynamic information about the changes in the objective function value, as to effectively balance the advantages of global optimization against the shortage of local optimization. Four Benchmark function are used for performance test of five different kinds of optimizationalgorithm, the final results shows that the proposed method has a good ability to slow down the pace of premature convergence, compared to other improved particleswarmalgorithm.
Firstly,this paper summarizes the characteristics of vehicle running characteristics and design parameters,which have influence on vehicle fuel ***,200 vehicles test results are used as training samples,with sensitive...
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Firstly,this paper summarizes the characteristics of vehicle running characteristics and design parameters,which have influence on vehicle fuel ***,200 vehicles test results are used as training samples,with sensitive features and fuel consumption of type approve test as the input parameters,and the actual vehicle fuel consumption as output *** vehicle fuel consumption prediction model based on Least squares support vector machine(LSSVM) optimized by the improved particleswarmoptimizationalgorithm(IPSO) is ***,the vehicle fuel consumption prediction model is used to predict the fuel consumption of another 100 *** results show that the prediction error of test samples are less than 5%,and the fuel consumption prediction model proposed in this paper has fully considered the impact of vehicle operating characteristics and design parameters on fuel *** addition,the fuel consumption predictionmodel has high prediction accuracy and reliability than some traditional methods such as back propagation neural network(BPNN).
A novel Quantum-behaved particle swarm optimization algorithm with probability(P-QPSO) is introduced to improve the global convergence property of QPSO. In the proposed algorithm, all the particles keep the original e...
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A novel Quantum-behaved particle swarm optimization algorithm with probability(P-QPSO) is introduced to improve the global convergence property of QPSO. In the proposed algorithm, all the particles keep the original evolution with large probability, and do not update the position of particles with small probability, and re-initialize the position of particles with small probability. Seven benchmark functions are used to test the performance of P-QPSO. The results of experiment show that the proposed technique can increase diversity of population and converge more rapidly than other evolutionary computation methods.
For the problem of particleswarmoptimization parameters selection, a kind of intelligent method to optimum parameters selection using another particleswarmoptimizationalgorithm is proposed. Firstly it analyze...
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For the problem of particleswarmoptimization parameters selection, a kind of intelligent method to optimum parameters selection using another particleswarmoptimizationalgorithm is proposed. Firstly it analyzes the effect of each parameter on algorithm performance in detail. Then it takes parameter selection of PSO algorithm as a complex optimization problem, sets appropriate fitness function to describe optimization performance, and uses PSO-PARA algorithm to optimize the parameters selection method of PSO-OPT algorithm. Tests to the benchmark function show that these parameters are better than the experience parameters test results in the optimal fitness, the mean value of optimal fitness, convergence rate.
P300 is an important control system signal in the brain, so there is an urgent need and practical significance to work on the efficient classification of P300 event-related potentials. In this article, we design a con...
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ISBN:
(纸本)9798400707964
P300 is an important control system signal in the brain, so there is an urgent need and practical significance to work on the efficient classification of P300 event-related potentials. In this article, we design a convolutional neural network CNNnet based on chaotic adaptive particleswarmoptimization (CAPSO) algorithm for efficient and accurate detection and classification of P300 EEG signals. The chaotic adaptive particle swarm optimization algorithm uses Logistic chaotic mapping to initialize the initial position of particles, and adopts a dynamic adaptive weighting strategy. Compared with traditional particle swarm optimization algorithms, it can effectively improve the optimization speed and convergence speed of particles. The experimental results show that compared with other P300 detection neural networks and traditional particle swarm optimization algorithms, this algorithm has faster convergence speed and higher convergence accuracy, and can effectively avoid the problem of particleswarm falling into local optima.
Computer network traffic prediction plays an important role in the control and adjustment of network traffic,and then improves the network performance and service *** prediction accuracy of the traditional computer ne...
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Computer network traffic prediction plays an important role in the control and adjustment of network traffic,and then improves the network performance and service *** prediction accuracy of the traditional computer network flow method is low,only about 85%.Aiming at the nonlinear and time-varying characteristics of network traffic,it is difficult to accurately realize network traffic *** order to solve this problem,we propose a network traffic prediction method based on chaotic particleswarmoptimization *** vector regression(SVR) is a support vector machine model for trend prediction,which can find the global optimal ***,the choice of SVR parameters plays a decisive role in the optimization of regression *** chaotic particleswarmoptimization(CPSO) algorithm is used to optimize the support vector parameters,and the network traffic prediction model is established by establishing the chaotic particleswarmoptimization *** simulation results show that the chaotic particleswarmoptimization SVR network traffic prediction model has strong ability and good effect.
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