This paper introduces the homotopy algorithm into back-propagation neural network and indicates that the convergence speed can be improved and the defects of converging to local extremum can be eliminated.
同伦算法是解决非线性优化问题的新理论,将同伦算法引入误差反向传播神经网络,提高了网络的训练速度,消除了常规BP网络算法收敛于局部极值的缺点。
The homotopy algorithm,basing on homotopy mapping,is convergent with wide range.
基于同伦映射的同伦算法 ,具有大范围收敛性。
This paper introduces an optimization method of the selective harmonic elimination(SHE) technology based on the homotopy algorithm applied to neutral-point-clamped(NPC) three-level inverters.
文章以中点钳位型三电平逆变器为模型,在介绍SHE-PWM原理的基础上,采用同伦算法对非线性方程组求解,求取SHE-PWM的开关角度,进行NPC逆变器消谐模型的求解,具有收敛范围宽、收敛速度快等优点;用MatLab/Simulink仿真研究了谐波消除的效果,并用IGBT搭建了三电平逆变器实验电路模型,对SHE-PWM的谐波消除效果进行了验证;实验结果证明了基于同伦模型的NPC三电平逆变器SHE-PWM方法的有效性。
Study on the new homology continuation algorithm and its application in motor;
新型同伦算法及其在电机中的应用
The homology continuation algorithm has resolved this difficult problem without given initial value and can find all solution,but a special programming is compiled at the same time.
通过构造新型同伦函数并结合Maple高级程序设计语言的通用工具箱,提出了同伦算法的原理与实现方法。
The algorithm related to homotopy method provides a systematic approach for deriving optimal solution of relative minimum.
根据同伦算法证明了极大熵函数的最优解序列逼近于非线性lp问题的最优解,并提出了解决计算过程中易于溢出的方法。
A time stepping scheme is used for the transient analysis and a homotopy method is adopted to solve the process.
时域上采用精细算法进行离散,并应用同伦算法进行求解。
A constructive proof of a class of nonconvex Brouwer fixed point problems is pre-sented, and the theoretical base of homotopy method to the problem has been created.
一类非凸Ｂｒｏｕｗｅｒ不动点问题的同伦算法于波，林正华（吉林大学数学研究所，长春１３００２３）关键词不动点定理，构造性证明，同伦算法在７０年代，文［１，２］就提出了求Ｒ￣ｎ中有界闭凸集上连续可微自映射的不动点的同伦算法，这是非线性问题数值解法的突破性。
Based on homotopy methods,a robust global convergence method was developed for solving nonlinear inverse problems.
基于同伦算法构造出求解非线性反问题的一种大范围收敛鲁棒算法,为改善求解的稳定性,提出了将同伦参数的选取与计算和观测结果之间的残差联系起来的方法,给出具体算法步骤。
A Homotopy Algorithm and General Equilibrium Model with Incomplete Markets;
同伦算法与不完全市场一般均衡模型
Homotopy-based Research on Harmonic Elimination Model in PWM Inverter
基于同伦算法的逆变电源特定消谐法的研究
The Minimax Model for Portfolio Selection and Truncated Aggregate Homotopy Algorithm
投资组合的极大极小模型与截断凝聚同伦算法
Decentralized Robust H_∞ Output Feedback Controller Design Based on Homotopic Algorithm
采用同伦算法的分散输出反馈控制器设计
Nonlinear Least Squares Adjustment Based on Improved Homotopy Algorithm
基于改进同伦算法的非线性最小二乘平差
Study on Backcalculation of Pavement Layer Moduli Based on Homotopy Method;
基于同伦方法的路面模量反算的研究
The combined homotopy method of calculate the fixed point Brouwer in the horseshoe zone;
一类二次约束区域上计算不动点的同伦内点法
Wavelet-Homotopy Hybrid Algorithm for Inverse Problem of Ground Penetrating Radar
探地雷达反问题的小波-同伦混合反演算法
The continuation method of homotopy based on the homotopy invariance of topological degree;
同伦延拓法基于拓扑度的同伦不变性
A Regularized Homotopy-Extension Method for Nonlinear Ill-Posed Operation Equation;
非线性不适定算子方程的正则同伦延拓方法研究
I am inclined to agree Helen's idea.
我偏向同意海伦的想法。
Allen and co-worker did ab initio calculation to test the adequacy of SCF MO calculations for predicting molecular equilibrium geometries.
爱伦及其同事应用从头计算法来考查SCF MO计算对于预示分子平衡几何形的适宜性。
On pergence and return of ethic value in law;
论法律规范中伦理价值的异化及归同
Homotopy analysis approach to the Duffing-harmonic oscillator
Duffing-harmonic振子同伦分析法求解
Homotopy method for solving the fixed point problem on unbounded set Brouwer
解无界集上Brouwer不动点问题的同伦方法
Homotopy interior point method for non-convex optimization problem with weak pseudo cone condition
解非凸优化问题的一个同伦内点方法
Solving solitary wave solutions of KdV equation with the homotopy analysis method
用同伦分析法求解KdV方程的孤波解
Homotopy Based Backtracking Method for Large-scale Process Simulations with Load Variation
大规模变工况流程模拟的回溯同伦法