نتایج جستجو برای: neural optimization

تعداد نتایج: 606462  

2015
Xia Zhang

Abstract: Financial investment has become an important issue, there are many trading strategies and parameters based on quantitative models, this paper use neural network algorithm to optimization strategy parameters, various combinations of optimization strategies, as well as the evolution of new strategies to generate better returns. The empirical results show that this method has a stable an...

2015
Christopher B. Choy Wonhui Kim

Since the first appearance of a large-scale dataset [4] and powerful computational resources such as GPUs, Convolutional Neural Networks(CNN) became the essential machine learning algorithm for image classification, detection, and many application. As the popularity of CNN increases, the size of CNN increased as well[10, 13]. (For instance, AlexNet has more than 60 milion parameters.) The perfo...

2015
Dan Sui Zhen Jiao

Optimization of PID controller parameters has been a hot issue in the fields of Automatic control. In the automatic control process, the controlled object has nonlinear and uncertainty characteristics. Traditional PID parameters methods are often time-consuming and difficult to obtain control effect, causing the control accuracy not high. In order to solve the optimization problem of PID contro...

2014
Cheng-Hung Chen Miin-Tsair Su Cheng-Jian Lin Chin-Teng Lin

This study presents a new evolutionary learning algorithm to optimize the parameters of the neural fuzzy classifier (NFC). This new evolutionary learning algorithm is based on a hybrid of bacterial foraging optimization and particle swarm optimization. It is thus called bacterial foraging particle swarm optimization (BFPSO). The proposed BFPSO method performs local search through the chemotacti...

Aghashabani, M. , Ashabani, M. , Kashefi Kaviani, A. , Milimonfared, ,

This paper presents the method of reducing torque ripple of brushless DC (BLDC) motor. The commutation torque ripple is reduced by control of the DC link voltage during the commutation time. The magnitude of voltage and commutation time is estimated by a neural network and optimized with an optimization method named particle swarm optimization (PSO) algorithm analysis. The goal of optimizati...

Journal: :Computers & OR 1994
Fred Glover

Scope and Purpose-Neural networks come in a variety of forms and are "trained" by a variety of strategies. With a few exceptions, these forms and training processes have not produced strongly competitive approaches for optimization problems. when compared to latest methods that have evolved within the optimization field. This paper proposes a different type of neural network conception based on...

Akhoondzadeh, Mahdi , Ranjbar, Sadegh,

Surface soil moisture is an important variable that plays a crucial role in the management of water and soil resources. Estimating this parameter is one of the important applications of remote sensing. One of the remote sensing techniques for precise estimation of this parameter is data-driven models. In this study, volumetric soil moisture content was estimated using data-driven models, suppor...

Journal: :IEEE Computer 1996
Yi Shang Benjamin W. Wah

In this paper, we study various supervised learning methods for training feed-forward neural networks. In general, such learning can be considered as a nonlinear global optimization problem in which the goal is to minimize a nonlinear error function that spans the space of weights using heuristic strategies that look for global optima (in contrast to local optima). We survey various global opti...

2016
Lei Meng Shoulin Yin Xinyuan Hu

As we all know, the parameter optimization of Mamdani model has a defect of easily falling into local optimum. To solve this problem, we propose a new algorithm by constructing Mamdani Fuzzy neural networks. This new scheme uses fuzzy clustering based on particle swarm optimization (PSO) algorithm to determine initial parameter of Mamdani Fuzzy neural networks. Then it adopts PSO algorithm to o...

Journal: :international journal of automotive engineering 0
a. khalkhali s. samareh mousavi

in order to reduce both the weight of vehicles and the damage of occupants in a crash event simultaneously, it is necessary to perform a multi-objective optimization of the automotive energy absorbing components. in this paper, axial impact crushing behavior of the aluminum foam-filled thin-walled tubes are studied by the finite element method using commercial software abaqus. comparison of the...

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