Convergence of a class interative sequence 一類迭代序列的收斂性
Asymptotic minimax efficiency ; interative logarithm law ; mean error 漸近minimax有效重對數(shù)律均方誤差
End of interative process within row action method for system of linear equations 線性方程組行處理法迭代終止條件
The information highway exert a great influnce on people ' s interative ways of communication 信息高速公路將對人們相互間的交流方式產(chǎn)生難以想象的影響。
It follows that two experiments of hyperfine structure of atomic energy level which are called magnetic resonamce experiment and co - line expression beam interative experiment 介紹了研究原子能級超精細結(jié)構(gòu)的兩個實驗:磁共振實驗、共線快離子束相互作用實驗。
Composite materials shell ' s finite element analysis cites 3 - d nonlinear finite element analysis theory to discuss the finite element interative calculate method . the convergence speed of this method is very fast 復(fù)合材料殼體層間有限元分析采用準三維非線性有限元分析理論對殼體層間有限元迭代計算方法進行了討論,該方法的收斂速度較快。
2 . some existence typical 2d reconstruct algorithms of ect are analyzed and compared in this article . an optimized interative image reconstruction algorithm is adopted to reconstructed images which are the base of the research on 3d image reconstruction 對現(xiàn)有的ect二維圖像重建算法進行了分析比較,選用了一種重建圖像質(zhì)量較好的優(yōu)化步長的迭代算法來進行圖像重建,并以此為基礎(chǔ)進行圖像三維重建的研究。
For problems whose objective function or constraint functions have sharp curves on their contour maps ( such as the rosenbrock ' s function which has banana shape contours ) , monotonicity may cause a series of very small steps , causing a huge number of iteration to reach their solutions . by using the nonmonotone technique , we get the sequence of successful interative point which should make the objective function mono - tonically decreasing . hence , we use both trust region strategy and line search technique and make each iterate generate an acceptable trial step in interior feasible set as next interative point 我們利用非單調(diào)技術(shù)得到使目標函數(shù)非單調(diào)下降的迭代點,因為非單調(diào)克服高度非線性化函數(shù)的求解問題,從而避免了只使用單調(diào)搜索在“峽谷”現(xiàn)象局部最優(yōu)解被卡的情況,我們用信賴域策略和非單調(diào)線搜索技術(shù)相結(jié)合的方法,使算法產(chǎn)生的迭代步落在可行域內(nèi)點,同時又在信賴域內(nèi)滿足接受準則。