改進牛頓法 的英文怎麼說

中文拼音 [gǎijìnniúdùnfǎ]
改進牛頓法 英文
modified newton method
  • 改 : Ⅰ動詞1 （改變） change; transform 2 （修改） revise; alter; modify 3 （改正） rectify; correct 4 ...
  • 進 : 進構詞成分。
  • 牛 : 名詞1. （哺乳動物） cattle; ox 2. （姓氏） a surname
  • 頓 : 頓名詞（人名用字） a word used in a person's name
  • 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...
  • 改進 : improve; make better; better; mend; improvement; perfection; melioration
  • 牛頓 : [力學] large dyne; newton （n）牛頓環 newton s ring; 牛頓萬有引力定律 newton s law of gravitation...
  1. Based on the discussions of the conventional and recent methods of short term load forecasting such as time series, multiple regression approaches and artificial intelligence technologies, this paper presents a hybrid short term forecasting model which combines the artificial neural network ( ann ) and genetic algorithm ( ga ). in order to improve the convergence speed and precision of the back - propagation ( bp ), a new improved algorithm - the adapted learning algorithm based on quasi - newton method is given

    本文首先分析比較了電力系統短期負荷預測的傳統方法時間序列法和回歸方法以及最近的專家系統和神經網路技術的優點和不足，然後針對人工神經網路bp演算法的不足對其進行了改進，採用了基於擬牛頓的自適應演算法，它提高了網路學習效率，具有較快的收斂速度和較高的精度。接著提出了改進的遺傳演算法來改善神經網路的局部收斂性。
  2. This thesis discusses some effective algorithms that appear recently in distribution power flow calculation at length, for instance, back / forward sweep method, zbus method, newton zbus method with modified method, loop - impendence equation method and so on. it gives basic calculation theories, calculation steps and some particular regarding issues of every algorithm, according to many examples validate the effect of algorithms and finally obtain the characters, rang of use, virtue and shortcoming of every algorithm

    本論文詳細討論了近來出現的配電網路潮流計算的各種有效演算法，如前推回代法、 zbus法、牛頓zbus法及其改進、迴路阻抗法等，給出了各種演算法的計算基本原理，步驟以及應該注意的問題，並通過大量的算例進行驗證，從而通過比較得出各種演算法的特性、應用場合和優缺點。
  3. Furthermore, the global and superlinear convergence of the shamanskii modification of the newton method with the new line search are proved under the weaker conditions than those in ref [ 10 ] ( i. e.,

    在本章中，我什1將邪a ？ nans汕6修正牛頓法的迭代形式作了進一步的改進，改進后的sha 。 a 。
  4. 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。
  5. According to the characteristic of the distribution network, based on thenewton - raphson method, used the object - oriented thought, bring forward an unite load node method for power flow calculation, and making a improvement of the node number method which is suitable for newton - raphson method, obtained a rapid convergence calculation method for power flow calculation

    根據配電網的特點，基於牛頓?拉夫遜法運用面向對象的思想，提出了負荷節點合併的潮流計算方法，並引入了改進的，適合於牛頓拉夫遜法的節點編號方案，得到了一個快速收斂的潮流演算法。
  6. Reconfiguration approach of distribution network based on both system reliability and feeder loss is presented in this paper. being an objective function both to maximize the reliability and to minimize the loss of network, constraint conditions are considered as operation limits. an optimal method of the minimizing both the average service unavailability index and feeder losses is described in this paper

    本文以配電網可靠性最高、網路損耗最低為目標函數，以配電網的運行滿足電力連續供應為約束，提出了基於排序選擇、對違反約束個體進行直接比較的改進自適應遺傳演算法，對配電網的可靠性按照深度優先搜索最小路進行計算，對系統的網路損耗按照牛頓? ?拉夫遜法進行計算。
  7. An improved newton iteration method and its fractal images

    一種改進的牛頓迭代法及其分形圖
  8. The general shamanskii modification of the newton method is defined by the iteration and the global and superlinear convergence of the general shamanskii modification of the newton method are proved in this dissertation

    我們不僅證明了改進的sha一mansk燈修正牛頓法的全局收斂性，而且也證明該方法具有超線性收斂速度
  9. So, as the worst case when the computation cost of the objective function is negligible, the improvement is strictly increasing with respect to n and tends to + oc approximately at a rate lnn / ln2 when n - + oo. the results also show that the im - provement of cf - pcg algorithin with ad over newton method with ad is much greater than the improvement of cf - pcg algorithm witll sd over newton method with sd

    本文也對不同的微分方法下牛頓- pcg演算法與牛頓法的效率比進行了比較，得出：在一般的假設下，使用自動微分下的效率比嚴格大於使用符號微分下的效率比，而且它們的比值隨問題維數n趨于無窮，即應用自動微分的牛頓- pcg演算法對牛頓法有進一步的改進。
  10. By combining the newton method and the method of harmonic balance into the rewritten governing equation, we have established improved analytical approximations to the frequency and the corresponding periodic solution of the oscillator

    將牛頓線性化方法與諧波平衡法組合起來應用於變形后的控制方程，建立了達芬諧波振子頻率及周期解的改進解析逼近。
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