2) Armijo step size rule
Armijo步长搜索
1.
Global convergence results for a new three-term conjugate gradient method with Armijo step size rule;
结合Armijo步长搜索的新三项共轭梯度算法及其收敛特征
2.
The convergence properties of the new memory gradient method with Armijo step size rule were discussed without assuming that the sequence of iterates is bounded.
在去掉迭代点列有界和Armijo步长搜索下 ,讨论了算法的全局收敛性 ,同时给出了结合FR、PR、HS共轭梯度算法的修正形式。
3) generalized Armijo step size rule
广义Armijo步长搜索
1.
The numerical results show that the new algorithm is efficient compared with FR,PR,HS conjugate gradient methods with generalized Armijo step size rule.
对求解无约束优化问题的共轭梯度法中的方向参数给定新的区间取法,将HS共轭梯度参数限制在此区间上,保证搜索方向是目标函数的充分下降方向,在此基础上提出了修正HS共轭梯度算法(MHS),并在较弱的条件下讨论了新算法在广义Armijo步长搜索下的全局收敛性。
2.
The convergence property of th new conjugate gradient method with generalized Armijo step size rule is discussed without assuming that the sequence of iterates is bounded.
对求解无约束规划的共轭梯度算法中共轭梯度方向中的参数给了一个假设条件,从而确定它的一个取值范围,使其在此范围内取值均能保证共轭梯度方向是目标函数的充分下降方向,提出了一类新的共轭梯度算法,在去掉迭代点列有界和广义Armijo步长搜索下讨论了算法的全局收敛性。
4) step length
步长
1.
According to its grading standard,API was divided into groups with certain step length,and the correlation model with the mean value of AOT and API was built up,then with the m.
空气污染指数API(Air Pollution Index)是关系大众生产生活的一个重要指标,论证了一种由MODIS(中分辨率成像光谱仪)反演的气溶胶光学厚度产品AOT(Aerosol Optics Thickness)预报空气质量的方法,即依据API的分级标准,将API用特定的步长分组,再把各组的AOT和API均值建立相关模型,并用该模型来预测空气质量指数,经验证,预测值和实际值之间的精度为77。
2.
The relation of the step length of cutting tool with mechanical error when machining curved face in the 5 coordination NC machine, and the calculating formulas are deduced.
讨论了在五坐标数控机床上加工曲面时刀具走刀步长和切削带步长与加工误差的关系并推导了计算公式。
3.
The effect of step length on the gain characteristics of optical waveguide amplifiers is studied.
用四阶龙格-库塔法计算了10cm长光波导放大器中的光功率传输方程,研究了步长对放大器增益特性的影响,计算结果表明:步长对放大器增益特性的影响较大,特别是当步长为1cm时,放大器的增益在非饱和区呈振荡状态。
5) step
[英][step] [美][stɛp]
步长
1.
Designing and realization of automatic changing step in selective lever meters based on single chip;
基于单片机的选频表自动变步长的设计实现
2.
A Modified Variable Step Size Constant Modulus Algorithm;
一种改进的变步长常数模算法
3.
On the Tolerance of Fixed Optical Path Difference and Step in Michelson Interferometer;
迈克尔逊风场干涉仪基准光程差及步长误差容限分析
6) step size
步长
1.
The improved newmark algorithm with adaptive step size;
一种可自调步长的改进Newmark算法
2.
Focusing on the distribution rule of feature points, a searching method based on changeable step size was presented.
针对特征点的分布规律给出一个可变步长的搜索方法,该方法兼顾搜索速度与搜索结果精度,最后根据特征点的位置获得扫描人体的特征尺寸并且生成人体骨骼。
3.
To remedy its shortcoming of long computing time and large storage, a step sizepredictor and an initial-value predictor are adopted and for some subcircuits with poor con- vergence,continuous differentiation is used.
提出一种以波形松弛法为主的方法,保留了波形松弛法迭代稳定性高和迭代解精确的优点,而针对其计算速度不高和存储量大的缺点,采取了预报步长、预报初值以及在收敛性不好的部分子方程采用微分连续法处理等措施而予以抑制和改善。
补充资料:[3-(aminosulfonyl)-4-chloro-N-(2.3-dihydro-2-methyl-1H-indol-1-yl)benzamide]
分子式:C16H16ClN3O3S
分子量:365.5
CAS号:26807-65-8
性质:暂无
制备方法:暂无
用途:用于轻、中度原发性高血压。
分子量:365.5
CAS号:26807-65-8
性质:暂无
制备方法:暂无
用途:用于轻、中度原发性高血压。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条