نتایج جستجو برای: الگوریتم هیبریدی pso bp

تعداد نتایج: 87167  

2012
Jia He Qian Jiang

This paper can reasonably identify the connection weight and threshold of NN and improve capability of true problem solution. This paper also applies PSO-BP NN model into classification of fabric flaws, decomposes the fabric image at single layer and extract the sub-image in horizontal and vertical direction to represent longitudinal and latitudinal texture by using orthogonal wavelet transform...

ژورنال: :تحقیق در عملیات در کاربردهای آن 0
علی یعقوبی

تحلیل پوششی داده­ها (dea) تکنیکی است که کارایی واحدهای تصمیم­گیرنده (dmu) را براساس ورودی­ها و خروجی­های آن ها اندازه گیری می­نماید. از آنجا که پیش­بینی کارایی واحدها برای برنامه­ریزی دقیق­تر برای آینده اهمیت بسزایی دارد، این مقاله ابتدا مدلی جدید به نام مدل تحلیل پوششی داده­های تصادفی فازی چندهدفه (mofs-dea) با اوزان مشترک در محیطی پویا  ارایه می­نماید که تغییرات داده­ها را در طول دوره­های متو...

Journal: :JCP 2012
Weiguo Zhao

To comprehensively understand the characteristics of gas nanosensor between temperature and sensitivity, this paper has developed a Backward Propagation (BP) neural network based on Particle Swarm Optimization (PSO), which is applied to fitting the temperature-sensitivity characteristic of the SnO2 gas nanosensor mixed with benzene. The simulation results show the PSO can well optimize the stru...

2006
Liang Gao Chi Zhou Hai-Bing Gao Yong-Ren Shi

Given the relative limitations of BP and GA based leaning algorithms, Particle Swarm Optimization (PSO) is proposed to train Artificial Neural Networks (ANN) for the diagnosis of unexplained syncope. Compared with BP and GA based training techniques, PSO based learning method improves the diagnosis accuracy and speeds up the convergence process. Experimental results show that PSO is a robust tr...

Journal: :Applied Mathematics and Computation 2007
Jing-Ru Zhang Jun Zhang Tat-Ming Lok Michael R. Lyu

The particle swarm optimization algorithm was showed to converge rapidly during the initial stages of a global search, but around global optimum, the search process will become very slow. On the contrary, the gradient descending method can achieve faster convergent speed around global optimum, and at the same time, the convergent accuracy can be higher. So in this paper, a hybrid algorithm comb...

Journal: :Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 2018

Journal: :IOP Conference Series: Earth and Environmental Science 2021

Journal: :Frontiers in Energy Research 2022

With the improvement in integration of solar power generation, photovoltaic (PV) forecasting plays a significant role ensuring operation security and stability grids. At present, widely used backpropagation (BP) improved BP neural network algorithm short-term output prediction PV stations own drawbacks neglection meteorological factors weather conditions inputs. Meanwhile, existing traditional ...

2016
Jianfang Cao Hongyan Cui Hao Shi Lijuan Jiao

A back-propagation (BP) neural network can solve complicated random nonlinear mapping problems; therefore, it can be applied to a wide range of problems. However, as the sample size increases, the time required to train BP neural networks becomes lengthy. Moreover, the classification accuracy decreases as well. To improve the classification accuracy and runtime efficiency of the BP neural netwo...

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