By studying the existence of minimal points of the energy functional to a class of quasilinear elliptic systems,the uniform boundness of weak solutions for the elliptic problems with variable boundary data in a suitable trace space was given.
研究了具有变分结构的拟线性椭圆型方程组能量泛函的极小点的存在性,得到了椭圆问题弱解的一致有界性,结合集合收敛的意义,推广了半线性椭圆型方程组弱解对边值的稳定性结果。
The training process of Back Propagation Neural Network (BPNN) is easily converged at a local minimum, which slows the training process sharply.
但在ＢＰ网络的训练过程中 ,如何跳出局部极小点是一个难点 ,对此前人已有一些研究成果 ,其中包括改进的梯度下降搜索法 (ｇｒａｄｉｅｎｔｄｅｓｃｅｎｄｒｅｓｅａｒｃｈ ,ＧＤＲ) [5] 、模拟退火法 (ｓｉｍｕｌａｔｅｄａｎｎｅａｌｉｎｇ ,ＳＡ) [6]和ＥＧＡ算法 (ｅｘｔｅｎｄｅｄｇｅｎｅｔｉｃａｌｇｏｒｉｔｈｍ)等[7,8] 。
The advantages of applying simulated annealing algorithm to short-term load forecast include less model complexity,high forecasting accuracy and global optimal property,which alleviate the tendency of traditional BP algorithm to be trapped in local minimum.
将模拟退火算法应用于短期负荷预测领域,其特点是模型简单、运算效率高,并具有较好的全局最优性能,从而很好地克服了传统BP算法容易陷入局部极小点的缺陷。
Then some defects such as slow convergence rate and getting into local minimum in BP algorithm are pointed out,and the root of the defects is presented.
分析了BP算法的基本原理,指出了BP算法具有收敛速度慢、易陷入局部极小点等缺陷以及这些缺陷产生的根源。
A novel global optimization training algorithm was constructed for the feed-forward neural networks to which the BP algorithm is easy to fall into the local minimum point for improper choice of initial weights.
针对前向神经网络BP算法由于初始权值选择不当而陷入局部极小点这一缺陷,提出新的全局优化训练算法。
A stationary point which is neither a local maximum nor a local minimum point is called a saddle point.
一个既不是局部极大点又不是局部极小点的平稳点称为一个鞍点。
A New Research on Escaping from Local Minima in Back-Propagation Algorithm;
BP神经网络中一种逃离局部极小点的方法研究
Regularity for Minima of Variational Integrals with Weight;
具有权函数的变分积分极小点的正则性(英文)
Some Methods for Local Minimum of Nonlinear Integer Programming
几种求解非线性整数规划的局部极小点的算法
Saddle Theorem and Ky Fan Minimax Theorem in the P-space;
P型空间中的鞍点定理与极大极小原理
characterized by painstaking care and detailed examination.
以极为小心和细致的检查为特点。
Uranus is only a tiny spot in the sky.
天王星只是天空中的一个极微小的点。
A Generalized Minimum Variance Self-Tuning Controller with Pole Assignment
极点配置广义最小方差自校正控制器
Unbounded Perturbation of Generalized Inverse and Extreme Minimum Fixed Point Theorem
无界广义逆的扰动与极小不动点定理
The range indicates how far it is from the lowest data point to the highest.
极差表示从最小数点到最大数点的距离。
Method for LCD Motion Blur Reduction by Using Focusing All-Pole Filter
基于极点聚焦全极点滤波器减小LCD运动模糊的方法
The earth is slightly flat at the poles, so that the polar diameter is slightly less than the equatorial diameter.
地球在两极扁平一点，所以其极直径略小于赤道直径。
Joint Distribution of the Supremum, the Infimum and the Number of Zero in the Markov-modulated Risk Model;
Markov-modulated风险模型的极大值、极小值及零点数的联合分布
There is precious little of it.
只有一点点，极少极少。
Lifting weights for two hours left me dead tired.
连续搬运重物两个小时使我疲劳到了极点。
Magnetron it is characterized by small weight and a low level of the SHF radiation from a cathodic leg.
其特点在于小的重量和低的阴极超高频辐射。
characterized by minimal distortion in sound reproduction.
以在声音的复制中的极小的失真为特点。
On Myximum Degree and the Number of Vertices of Degree>4 in Minimally 2-(Edge) Connected Graphs
极小2—(边)连通图的最大次数大于4的点数
