線性逼近 的英文怎麼說

中文拼音 [xiànxìngbījìn]
線性逼近 英文
linear approximation
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 逼 : Ⅰ動詞1 （逼迫; 給人以威脅） compel; force; drive; threaten 2 （強迫索取） extort; exert pressure ...
  • 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...
  • 線性 : [數學] [物理學] linear; linearity線性代數 linear algebra; 線性方程 linear equation; 線性規劃 line...
  • 逼近 : 1 （靠近 接近） press on towards; gain on [upon]; approach; crowd on; close in on; draw near 2 [...
  1. Approximation by linear combinations of bernstein - durrmeyer operators

    運算元線性組合的逼近
  2. We compare the approximation of an analytic function f by its taylor polynomial and its poisson partial sum with the same number of terms and illustrate that for functions with limit zero at infinity and for bounded functions the poisson expansion provides a better approximation to the function than the taylor expansion

    在第三章中，介紹了rb曲線與poisson曲線的概念以及基本的幾何性質，指出了poisson基函數與有理bernstein基函數之間存在的關系，並且將解析函數的taylor逼近與poisson逼近進行比較。實例表明，對于在無窮遠處極限為0的函數以及有界函數， poisson逼近比taylor逼近效果要好。
  3. The relation of radius of curvature and error as well as formulas of increasing parameters on condition of constant error are diverted. the equation of the line on the center of approximate circular arc is obtained ， and it can avoids the trouble that numerical solution owns possibility of no convergence and simplifies node calculation of non - circular curve

    導出了曲率半徑與逼近誤差之間的關系和等誤差條件下的參數遞推公式，建立了通過逼近圓弧圓心的直線方程和圓心坐標計算公式.按這種方法用圓弧逼近平面參數曲線，不需要求解非線性方程組，避免了計算可能不收斂的麻煩，簡化了非圓曲線的節點計算過程
  4. Convergence of the legendre nonlinear approximations to the dirac function

    非線性逼近的收斂性
  5. This paper puts forward bp improvable algorithm and exponent prediction pattern depending on neural network " s approach ability to non - linear function. comparing with traditional prediction algorithm, bp algorithm is verified to be feasible and accurate on exponent prediction

    本文藉助神經網路對非線性函數的逼近能力，提出了bp演算法的改進型演算法及基於bp演算法的指數預測模型，通過對比傳統預測演算法，證實改進后bp演算法用於證券預測的可行性及準確性。
  6. Considering the characters of bp neural network, such as the simple structure, the advisable malleability, self - fitness, self - studying, nonlinear function approximating, the considerable abilities of parallel computing, fault - tolerant and so on, the bp algorithm have been extensively applied to the areas of system modeling, pattern recognition and seismic exploration since 1986. compared with other algorithms, as the above reasons, the bp algorithm has become the most usual and efficient solutions to the artificial neural networks

    由於人工神經網路中的bp神經網路結構簡單，可塑性強，具有良好的自適應、自學習、極強的非線性逼近、大規模并行處理和容錯能力等特點，自1986年rumelhart等人提出以來，被廣泛應用於系統建模、模式識別、地震勘探等重要領域。而bp演算法數學意義明確，步驟分明，是神經網路中最為常用、最有效、最活躍的一種方法。
  7. Stock analysis method of approaching nonlinear function based on wavelet network

    基於小波網路的非線性逼近股票分析方法
  8. Applications of the linear approximation

    線性逼近法的應用。
  9. The methodology adopted by most existing cam / cnc systems, which uses huge amount of linear segments to approach the original shape and make linear interposition increases the cost of memory size and communication work of the cnc system tremendously. a new approach based on cubic polynomial and b spline interposition to rebuild the cam generated tool path under real time condition is presented in the paper. applications on cnc machine tools showed that the presented approach improves the machining accuracy and increases the cutting speed significantly

    目前大多數cam / cnc系統採用大量小直線段逼近原始曲線和直線插補的做法，只能獲得零階連續的走刀軌跡，逼近精度低，不能保證高速加工運動的平穩性，因而加工精度、光潔度和加工速度都難以提高；由小直線段構成的nc代碼數據量龐大，也增加了數控系統在內存容量和數據傳輸方面的成本。
  10. The method of fuzzy modeling can be taken as a good candidate of this problem in this thesis, the inverted - pendulum system is firstly analyzed by using t - s fuzzy model due to its property of arbitrary approximation for the non - linearity. based on the parameters identification, simulations of system are made by using fuzzy logic toolbox of matlab. the results of comparison with lq approach show the performance improvement in the aspects of overshoot and fast response

    本文首先利用模糊模型的非線性逼近能力，採用t - s模糊模型對小車-倒擺控制系統分析並實現了該系統的模糊建模及模糊模型各部分參數的辯識，在matlab模擬環境下藉助其模糊邏輯工具箱進行了系統的模擬，與採用線性二次最優控制的系統模擬結果進行比較，改善了系統超調量及快速響應性。
  11. Judging by the different magnitude and direction of the wavelet packet coefficient modular maximum, we can select the single phase - to - earth line. the method using wavelet singularity detection theory to extract the fault time is discussed. a fault distance measurement algorithm combining wavelet analysis used for separating the character from the transient fault signal with artificial neural networks used for the nonlinear approximation from the transient character to fault distance is presented

    論文提出利用各個出線零序電流在頻帶上小波包系數模極大值的方向和大小的不同來實現故障選線，討論了利用小波分析的奇異性來判斷故障啟動時刻，提出將小波分析和人工神經網路結合，利用人工神經網路的非線性逼近能力，實現故障暫態量到故障距離的非線性映射，完成測距。
  12. Secondly, in respect bayes method is difficult in extracting features and in establishing statistical models, and the capability of no - linear approach is preferably for bp neural netw ork, the method ( bpbayes method ) to combine neural network with subjective bayesian was introduced. in this method, bp neural network was used to replace the experts of relevant domains for applying subjective bayes method

    其次，考慮到bayes方法在特徵建模上具有較大的難度，而bp神經網路具有較強的非線性逼近能力，為此我們將bp神經網路的輸出代替領域專家的知識經驗，並用bp神經網路與主觀bayes方法結合起來的bpbayes方法對目標進行識別。
  13. The rationality of cycloid gear actual operating space is verified by optimizer, finally the conclusion of the isometric plus travel distance alter shape curve much more approach corner alter shape is obtained

    通過編制的優化程序驗證了擺線輪齒形工作部分范圍的合理性，得出了等距加移距修形曲線更逼近轉角修形曲線的結論。
  14. This paper is devoted to nonlinear approximation, namely, m - term approximtion of anisotropic smooth periodic functions. nonlinear approximation is the important part of approximation the - ory. it means that the approximants do not come from linear spaces but rather from nonlinear manifolds. the advantages of nonlinear approximation show that one can achieve a given accuracy of approximation while assuming less smoothness on the function in the nonlinear case than is necessary in the corresponding linear approximation. nonlinear approximation is used significantly in many applications, such as image processing, noise removal and the solution of operation equations and so on

    非線性逼近與線性逼近最大的區別在於所用的逼近子空間不是固定的，而是依賴于被逼近的函數其主要優點是對光滑度較低的函數仍可以得到較高的估計階。隨著小波和樣條的廣泛使用非線性（ m項）逼近成為較熱門的話題，它在圖象處理，聲的傳播，運算元方程的求解等方面都有很多應用。
  15. The objective function of the qp problem is a quadratic function which is an approximation of the lagrangian function of the constrained problem and the constraints of the qp problem are linear approximation of the constraints of the constrained problem

    這些二次規劃子問題的目標函數是原約束最優化問題的lagrange函數的二次某種近似，其約束條件是原約束最優化問題的線性逼近。
  16. The adoption of a fuzzy neural network control strategy that features satisfactory ability of self - learning and nonlinear approaching. the charging current traces dynamically the battery - dependent acceptable curves to maintain the charging process under optimal status

    -採用具有良好自學習能力和非線性逼近能力的模糊神經網路控制策略，使充電電流動態跟蹤離散的可接受充電曲線，使充電過程始終在最佳狀態下進行。
  17. It is a kind of intelligence information control system which can imitate human ' s fuzzy inference. it is provded that it have universal approximation property

    它是一種模仿人腦的模糊推理的智能信息處理系統，已證明它具有很強的非線性逼近能力。
  18. Aes - ccm mode use counter mode application simple, systematic expense little, may raise the efficiency of encryption. aes algorithm is presented in allusion to differential cryptanalysis and linear analysis. therefore, the security of aes algorithm in current stage have enough guarantee

    而aes演算法是針對差分分析和線性分析提出的，它的最大優點是可以給出演算法的最佳差分特徵的概率及最佳線性逼近的偏差界，具有抵抗差分密碼分析及線性密碼分析的能力，因此aes演算法的安全性在現階段是有足夠保障的。
  19. In this article, we will discuss the ways of how to get their stable numerical solutions, in which the continous and discrete regularization method, with and without knowing the error level 6 of input data, are presented and a regularization strategy based on linear approximation for identifying the nonlinear source term is also given

    本文將討論獲得其穩定數值解的計算方法，包括在原始數據的誤差水平已知和未知情況下的連續正則化與離散正則化方法以及識別非線性源項的基於線性逼近的正則化策略等。
  20. 2. nonlinear local project noise reduction is studied on the basis of principal components analysis ( pca ), the principle of this noise reduction is to approximate piecewise and linearly the dynamics and to process local principal components analysis

    在主元分析（ principalcomponentsanalysis ， pca ）的基礎上，研究了非線性局部投影濾波方法，該方法的原理是在相空間分段線性逼近動力系統並進行局部主元分析。
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