共軛梯度法 的英文怎麼說
中文拼音 [gòngètīdùfǎ]
共軛梯度法
英文
cg-method-
The global convergence of a new kind of dy - conjugate gradient method
型共軛梯度法的全局收斂性Procreant knowledge expression and forward inference engine are adopted in the method of fault diagnosis based on expert system theory. in the fault diagnosis applying neural network theory, six kinds of improved arithmetic of back - propagation arithmetic, including gradient descent with momentum, variable learning rate back - propagation, resilient back - propagation, quasi - newton, levenberg - marquardt and conjugate gradient, are applied to diagnose the faults of electric load manage center and solid state power controller. different diagnostic results gotten by simulation are compared at last
在基於專家系統的故障診斷方法中，採用了產生式知識表達和正向推理機制；在基於神經網路的故障診斷方法中，則分別採用了bp神經網路的附加動量法、自適應學習速率、彈性bp演算法、擬牛頓法、共軛梯度法和levenberg - marquardt法對電氣負載管理中心和固態功率控制器的故障進行診斷，並對由模擬得到的不同診斷結果進行比較。Abstract : a cad tool based on a group of efficient algorithms to verify, design, and optimize power / ground networks for standard cell model is presented. nonlinear programming techniques, branch and bound algorithms and incomplete cholesky decomposition conjugate gradient method ( iccg ) are the three main parts of our work. users can choose nonlinear programming method or branch and bound algorithm to satisfy their different requirements of precision and speed. the experimental results prove that the algorithms can run very fast with lower wiring resources consumption. as a result, the cad tool based on these algorithms is able to cope with large - scale circuits
文摘:介紹了一個基於標準單元布圖模式的電源線/地線網路的輔助設計集成工具.它應用了一系列高效的演算法，為用戶提供了電源線/地線網路的設計、優化和驗證的功能.非線性優化技術、分枝定界演算法和不完全喬萊斯基分解的預優共軛梯度法是該工作的三個主體部分.用戶可以選擇使用非線性規劃的方法或者幾種分枝定界方法來滿足他們對于精度和速度方面的不同需求.實驗結果表明，文中所提供的演算法可以在很快的運行速度下實現更低的布線資源佔用.因此，在這些有效演算法基礎上實現的輔助設計工具具有處理大規模電路的能力A conjugate gradient method based on subset of subspace
基於子空間子集最優的共軛梯度法Finally, this thesis introduces the model - based light map ( mbl ) technique and its basic idea and framework. in order to capture the facial reflection model efficiently, a 3d light stage with 1. 5 - meter radius is custom - built. a basic recovering algorithm based on conjunction gradient method is described and some results are provided
先提出了基於模型的光照圖技術的基本思想和框架，然後介紹自行設計建造的一個半徑為1 . 5米的三維光照架，和一個基於共軛梯度法的光照圖恢復演算法。Solving 2 - d inverse heat transfer problems with multi - variables in steady - state via conjugate gradient method based on second - order sensitivity
基於二階敏度的共軛梯度法求解多宗量穩態傳熱反問題A class of conjugate gradient methods for unconstrained optimization
一類無約束優化問題的的共軛梯度法This paper deals with the solution for 200 000 order normal equations in combined adjustment of astro - geodetic and space networks by using conjugate gradient method, puts forward a scheme of adjusting the coefficients and a strategy of separation as well as mergence between the adjustment and inversion
本文研究了用共軛梯度法解算天文大地網與空間網聯合平差中20萬階法方程的有關問題，提出了「系數調整策略」和「平差與求逆既分又合的策略」 。As for single objective optimization algorithm, a fast iterative algorithm based on conjugate gradient algorithm is presented, which makes use of extent limit of iterative optimization step in conjugate gradient with the idea of least square
在標量優化圖像重建法中，作者以最小二乘為目標，利用共軛梯度法中迭代最優步長的區間性，提出了一種基於共軛梯度法的快速迭代演算法。The preconditioner m is derived on the base of saor and the alternating method. then we use conjugate gradient method to solve the preconditioned system max = mb
這種方法基於saor迭代法以及交錯法，構造了預條件子m ，然後利用共軛梯度法來求解預條件方程max = mb 。A full mathematical model of optimal flow pattern design withengineering constraints was put forward, based on modern optimal control theory. an optimal flow pattern design was presented for optimizing meridional channel of axial flow turbine. according to integral optimization of turbine stages, a full physical model and mathematical expression were put forward for proposition of optimal flow pattern, including all performance parameters in turbine stages. this problem was further recast into a typical form control to maximize specific performance index such as work or efficiency of stage with given initial state, fixed terminal condition and constraints for part of state terminal variables. the program was also worked out according penalty function method and conjugate gradient method. the optimal distribution of c1ur1 ( r1 ) was obtained according to constraint conditions and maximized objective function
把近代最優控制論方法引入軸流透平葉片的設計，在優化的軸流透平子午通道內，建立包括透平級內所有性能參量的最優流型命題的完整的物理模型及其數學表達式，並歸化為一個在給定初始狀態、自變量終端固定、部分狀態變量終端受有約束的條件下，使級的某一性能指標（如級的功率）達到最優的最優控制問題，應用「代價函數法」及「共軛梯度法」編制計算程序，計算得到符合給定約束條件、並使目標函數取極值的最優環量分佈，結果是令人滿意的。The aim of this paper is to construct a three - term conjugate gradient method to solve the trust region subproblem
在本文中，我們提出了解信賴域子問題的三項預處理共軛梯度法，並將這個方法嵌入解大型最優化問題的信賴域演算法中。This paper presents a conjugate gradient method using restart strategy for solving trust region subproblems. and the convergence is proved. the numerical results show that this strategy is very effective
摘要給出了用共軛梯度法解信賴域子問題的重新開始策略，並證明了方法的收斂性，數值結果表明該策略可以大大提高演算法的收斂速度。For solving nonlinear optimization problems, newton method is one of the most efficient methods. as modification to newton method, inexact newton methods are popular for solving the middle and large scale noniinear optimization problems. among them, cf - pcg ( newton - pcg ) method is an efficient improvement to newton method
在非線性最優化的研究中，牛頓法是二階演算法，對牛頓法的改進，一直是人們關注的問題，近年來，用共軛梯度法對它進行改進，即研究牛頓- pcg型方法是國內外的一個研究熱點。In chapter 3, by minimizing a quadratic model restricting next search direction to a subset of span { - g _ ( k ), d _ ( k - 1 ) }, we propose other formula of parameter ~ ( * ) k convergences of the new method and its hybrid formula are proved under monotone line search. their numerical results show that they are efficient
在第三章中，通過最小化一個限制下次搜索方向在span { - g _ k ， d _ （ k - 1 ） }子集上的二次模型，我們提出了_ k ~ *取新形式或其雜交形式的共軛梯度法是有效的。A global convergence property of the con
線搜索的一種共軛梯度法的全局收斂性A class of conjugate gradient method under new line search
一類在新的線搜索下的共軛梯度法A global convergence property of t
線搜索的一種共軛梯度法的全局收斂性A class of conjugate gradient methods with armijo - type line searches
型線搜索下共軛梯度法簇的全局收斂性Global convergence for a class of conjugate gradient methods with relaxed line search
推廣線搜索下一類共軛梯度法的全局收斂性分享友人