迭代近似法 的英文怎麼說
中文拼音 [diědàijìnsìfǎ]
迭代近似法
英文
iterative approximation method- 迭 : Ⅰ動詞(輪流; 替換) alternate; change Ⅱ副詞1 (屢次) repeatedly; again and again 2 (及) in tim...
- 代 : Ⅰ動詞1 (代替) take the place of; be in place of 2 (代理) act on behalf of; acting Ⅱ名詞1 (歷...
- 近 : Ⅰ形容詞1 (空間或時間距離短) near; close 2 (接近) approaching; approximately; close to 3 (親...
- 法 : Ⅰ名詞1 (由國家制定或認可的行為規則的總稱) law 2 (方法; 方式) way; method; mode; means 3 (標...
- 近似 : approximate; similar; approach; approximation; roughness; propinquity
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Iterative approximation algorithm of hessian matrix in structural optimization
結構優化中的海森矩陣的近似迭代方法Group gaussian approximation iterative detection for turbo - blast
系統的分組高斯近似迭代檢測演算法Recurrence and iteration calculation of approximate method in quantum mechanics
量子力學中近似法的遞推及迭代計算A new computational formula to nonlinear adjustment by parameters, in consideration of the second - order terms, is derived in this paper from the precise orthogonality condition equations to nonlinear least squares by analyzing the direct solving process and iterative computing method of the linearized model
在分析線性化的非線性參數平差的近似直接解法與迭代解法基礎上,利用非線性最小二乘的精確正交性條件方程,推導出顧及到二次項的非線性參數平差的一種新的計算公式。Ph linearization method is employed to solve a nonlinear reynolds equation for a steady state and micro - scale flow field, and the approximate function expressions of gas dynamic pressure and velocity in the spiral groove are obtained
摘要應用ph線性化方法、迭代法,近似求解了螺旋槽內穩態微尺度流動場的非線性雷諾方程,求得了氣體動壓和速度分佈的解析解。Quark medium is regarded as non - harmonic oscillator model, discussing its response to su ( 2 ) non - abelia field, the perturlation expansion method is used to find the first, second and third order approximate solutions to the response equation, and some nonlinear features of the response are preliminarily displayed
將夸克介質視為非簡諧振子模型,討論了它對su ( 2 )非阿貝爾場的響應,採用微擾迭代法解出了方程的一、二、三級近似解,初步得出了這種響應的一些非線性特徵The solution of the original nonlinear problem is reasonably approximated by means of a series of random vibration analyses for the linearized structure using the pseudo excitation method
本文方法充分利用了虛擬激勵法求解復雜線性結構高效、精確的優點,以一系列線性問題的迭代分析,迅速地求得原非線性問題合理的近似解。Three methods that are approximate arithemeti inverse iteration and trial means have put forward. then three methods have been applied for analysis of a example successfully
提出了三種形狀確定的方法? ?近似演算法、逆迭代法及試演算法。並通過算例進行了對比分析,證明了三種方法的有效性。A multisensor convex linear statistic fusion modal for optimal interval estimation fusion is established. a gauss - seidel iteration computation method for searching for the fusion weights is suggested. in particular, we suggest convex combination minimum variance fusion that reduces huge computation of fusion and yield approximately optimal estimate performance generally, moreover, may achievers exactly optimal performance in some cases
建立了一種最優區間估計融合模型? ?多傳感器凸線性組合,並給出搜索最優權系數的gauess - seidel迭代演算法,另外,給出了一種近似的區間估計融合? ?凸線性組合的最小方差融合,它能減少大量的計算量。The adaptive homotopy method uses the homotopy with parameter to get a enough good approximation xn of the genuine solution x, and then use the newton iteration to attain a more precise one
自適應延拓演算法用含參同倫迭代求出一個真解x ~ *的較好近似x ~ n ,再用newton迭代精確化。This thesis suggests a process considered minimizes the population size as similar individuals occur in the fitter members of the population, which helps reduce the execution times for ga by removing the redundancy associated with the saturation effect found in the later generation. this thesis uses a method that adds dynamic penalty terms to the fitness function according to the optimal degree of solutions, so as to create a gradient toward a feasible suboptimal or even optimal solutions. on the basis of the difference of the biggest and the smallest of fitness of individual, modifying the fitness function in order to convergence is a satisfaction
動態調節種群大小,去掉遺傳演算法在迭代後期搜索產生的過多相似個體,達到減少計算時間的目的;按照解的優劣程度給適應度函數增加一個在ga搜索過程中動態改變的可變罰函數,給搜索最優解創造一個梯度,使遺傳演算法收斂到可行的較優解或最優解;根據適應度值最大和最小個體的差修正適應度函數,使適應度函數值適中不容易造成收斂太快、局部收斂或根本不收斂而變成隨機搜索;為了避免「近親繁殖」採用競爭擇優的交叉操作;利用并行遺傳演算法的思想,提出一種自適應多子種群進化策略;提出人口汰新政策來解決類似甚至相同的個體的情況發生。Finally, an improved successive approximation process algorithm based on histogram constraint and tikhonov - miller regularization is proposed
最後,本文提出一種結合直方圖約束和tikhonov - miller正則化的連續近似迭代演算法。To obtain a stable solution, in our method, successive approximation process is constrained by prior histogram and laplacian regularization
為了獲得穩定而滿意的解,我們採用直方圖約束下的正則化方法對連續近似迭代進行約束。Comparing with traditional successive approximation process algorithm, our method can improve quality of reconstruction result while speeding up convergence. further, proper threshold is adopted to enhance the robustness of the histogram constraint.,
和傳統的連續近似迭代法相比,該方法在加快收斂速度同時能夠有效地改善重建質量,同時我們採用閾值對先驗直方圖的影響進行動態地控制,有效地增強了直方圖約束的抗干擾性。Applying variational method we analyze the existence and uniqueness for the solution of the corresponding boundary variational equation, truncated mrm boundary variational equation, and approximation truncated mrm boundary variational equation in detailed. we obtain the error estimation for various approximation solutions and construct the boundary integral method with constraint. we explain the principle for choosing the mesh size and the truncated number in mrm. finally the numerical examples show that the theoretical analysis is accord with the numerical experiment result
採用變分方法系統分析了相應問題的邊界變分方程,截斷的mrm邊界變分方程與近似截斷mrm邊界變分方程解的存在唯一性,解釋了網格寬度與mrm方法中截斷數的選取原則,討論了mrm方法中的迭代誤差估計,給出了數值算例。In capter 2, it is proved that the system possesses a global attractor and a two - side estimate for the fractal dimension of it is presented. in capter 3, several different approximate intertial manifolds of the system are constructed by applying linear galerkin method, method of projecting operator and operator eigenvalue and successive iterative method, and it is proved that arbitary trajectory of the system enters into a small neighbourhood of the global attractor after large time. capter 4 studies the asymptotic attractor of the system by constructing a solution sequence which approaches to the global attractor of the equation in long time, and the dimentional estimate of the asymptotic attractor is given
第二章證明了該系統的整體吸引子的存在性,給出了其分形維數的上下界;第三章利用線性galerkin方法、運算元投射和運算元特徵值方法及逐次迭代方法構造了幾類近似慣性流形,證明了該方程的任意解軌道在長時間后進入整體吸引子的任意小鄰域;第四章構造了一個有限維解序列即該系統的漸近吸引子,證明了它在長時間后無限趨于方程的整體吸引子,並給出了漸近吸引子的維數估計5. a iterative - linear complementarity method for elasto - plastic problem was proposed, which approximates nonlinear yield function well and enlarges the utilization of lcm. 6
提出了一種求解彈塑性問題的迭代線性互補方法,可以更好地解決非線性屈服函數的近似問題,進一步拓展了線性互補方法的求解能力。On this basis, the error theorem is obtained which divides the hausdorff distance between the original image and reconstructed image into two control parts. the fixed point of each contraction mapping is introduced, the fixed - point image ( which is tiled by all the fixed points ) is selected as an initial image when decoding, and is proved to be a good estimation of the attractor of the ifs
在此基礎上,得到誤差定理,將原始圖像與迭代圖像間的hausdorff距離分為兩個控制項,並提出基於選擇初始圖像的分形圖像壓縮方法,引入不動點圖像,解碼時選擇不動點圖像為初始圖像,並證明不動點圖像是迭代函數系統的吸引子的一個較好的近似。The full potential equation is solved by the time - accurate approximate factorization algorithm and internal newton iterations, and the euler equation by the finite - volume resolution scheme and dual - time stepping
對全位勢方程採用精確隱式近似因式分解差分格式、牛頓內迭代演算法。對euler方程採用有限體積法和雙時間推進。A new random phase - shifting correction algorithm is presented in this paper on the basis of five - step phase - shifting. it can directly solve the value of phase - shifting errors without solving phase. meanwhile, the new algorithm can greatly decrease the iteration number and calculation without depressing the measurement accuracy
本文的重點在於提出一種新的隨機相移誤差的校正演算法,在傳統五步相移的基礎上不需要求解相位分佈,通過合理的近似處理可以直接求解相移過程中存在的隨機相移誤差,在保證精度的情況下,能大大減少迭代次數和計算量。分享友人