收斂域 的英文怎麼說

中文拼音 [shōuliǎnyù]
收斂域 英文
convergence domain
  • 收 : Ⅰ動詞1 （把攤開的或分散的事物聚集、合攏） put away; take in 2 （收取） collect 3 （收割） harvest...
  • 斂 : Ⅰ動詞1 （收起; 收住） hold back; keep back 2 （約束） restrain 3 （收集; 徵收） gather; collect; ...
  • 域 : 名詞（在一定疆界內的地方; 疆域） land within certain boundaries; territory; region
  • 收斂 : 1 （減弱或消失） weaken or disappear 2 （約束言行） restrain oneself 3 [數學] convergence; constr...
  1. Agglomerative effectiveness : the effect on regional economical inequality because of industrial agglomeration. in order to show the effects of industry on regional inequality, the model of panel data is applied to analyze the relationship between industrialization and economy growth., which is helpful to estimate whether the tendency of growth is convergence and the structural effectiveness. the time series model is used to analyze the effect of industrial agglomeration on regional inequality, where gini coefficient is taken as the index of industrial agglomeration

    為了更清楚地把握工業在地區差距上的效應，本文用面板數據模型分析工業化程度和經濟增長之間的相關關系，從而判斷區域經濟發展趨勢是否收斂，工業在「結構效應」方面的影響;計算表示工業集聚程度的基尼系數，通過時間序列模型分析工業集聚對地區經濟差距的「集聚效應」影響。
  2. Globally convergent of a trust region algorithm with memory

    帶記憶信賴域方法的收斂性分析
  3. In this paper we improved the traditional sa algorithm, and the heuristic algorithm is applied to the search and move schedule. the neighborhood is changed from the fixable to the alterable, the operation of moving and rotating is alternate, and the precision of the solution is then guaranteed as well as its convergence speed

    本文對傳統的sa演算法進行了改進，在演算法的搜索策略和變動策略中應用了啟發式方法，由定鄰域搜索變為變鄰域搜索，平移和旋轉變動交替進行，既保證了解的精度又提高了其收斂速度，取得了良好的布局效果。
  4. Some result of power series in convergence region

    關于冪級數在收斂域內的一些結果
  5. Neural network control is an important mode of intelligent control, and it is widely used in branches of control science, first, the architecture and the learning rule ( error back propagation algorithm ) of multiplayered neural network which is widely used in control system are presentedo especially, the paper refers to the architecture of diagonal recurrent neural network and its learning algorithm - - - - - recurrent prediction error algorithm because of its faster convergence with low computing costo next, before introducing the neural network control to the double close loop dc driver system, the controllers of current and velocity loop are designed using engineering design approach after analysis of the system, simulation models of the system are created

    神經網路控制是智能控制的重要方式之一，它廣泛應用於自動控制學科各個領域。本文首先敘述了控制系統中常用的多層前饋網路結構及演算法（ bp演算法） ，特別提及了能夠較好描述系統動態性能的對角遞歸神經網路和在用遞推預報誤差演算法訓練drnn時取得了較快的收斂速度。其次，應用工程方法分析設計了tf - 1350糖分離機的電流、轉速雙閉環直流調速系統的控制器，作為引入神經網路控制的設計基礎，並建立了系統的模擬模型。
  6. A normal transform is introduced, and there are enough much grids in the region between the critical layer and the wall, where the variation of the disturbance is the quickest. the finite - difference of governing equations with fourth - order accuracy in the normal direction is utilized in full regions including points close the wall, and is very important for accurately discreting equations. the combination of global and local methods is implemented, and a new iterative formula is derived

    對于曲線坐標系下的拋物化穩定性方程，文中發展了求解的高效數值方法:引進法向變換，使得在臨界層與壁面之間的擾動量變化最快的區域有更多的法向網格點;導出包含邊界鄰域在內的完全四階精度的法向有限差分格式，這對方程精確離散至關重要;採用全局法和局部法相結合的方法及其新的迭代公式，大大加速收斂並得到更精確的特徵值。
  7. In solving the helmholtz equation in the acoustical waveguides with a curved bottom, slow convergence may occurs when the linear local orthogonal transformation is adopted. in this paper, a class of nonlinear local orthogonal transformations ( nlot ) is proposed. it is an approach to improve the slow convergence mentioned above

    本文嘗試通過在深度方向選取非線性局部正交變換，將曲底求解區域化為平坦求解區域，然後求解helmholtz方程的辦法，來改善用線性（深度方向）局部正交變換時，步進求解時會出現的局部收斂慢的問題。
  8. This dissertation deals with the content - based image retrieval ( cbir ) theory and technique ; some new features and tools for more concisely and discriminatingly charactering the content of an image are proposed, such as region - based color histogram, grey - primitive co - occurrence matrix, ratio of centripetal moment, ratio of eccentric moment and ratio of inertial moment. a new modified genetic algorithm is also described in this dissertation, which can upgrade the performance of standard genetic algorithm ( sga ) while used in image segmentation

    本文以圖像數據庫檢索為主線，討論了基於視覺內容的圖像檢索方法，提出包括基於區域顏色直方圖、灰度?基元共生矩陣及向心矩比、偏心矩比、慣性矩比的特徵描述方式；對遺傳演算法存在的早熟、收斂到最優解慢等問題提出了解決方法，並將改進遺傳演算法應用到圖像分割中，編制了相應程序。
  9. Compared with the classical bp algorithm, robust adaptive bp algorithm possesses some advantages as following : ( 1 ) increasing the accuracy of the network training by means of using both the relative and absolute residual to adjust the weight values ; ( 2 ) improve the robustness and the network convergence rate through combining with the robust statistic technique by way of judging the values of the samples " relative residual to establish the energy function so that can suppress the effect on network training because of the samples with high noise disturbances ; ( 3 ) prevent entrapping into the local minima area and obtain the global optimal result owing to setting the learning rate to be the function of the errors and the error gradients when network is trained. the learning rate of the weights update change with the error values of the network adaptively so that can easily get rid of the disadvantage of the classical bp algorithm that is liable to entrap into the local minima areas

    與基本bp演算法相比，本文提出的魯棒自適應bp演算法具有以下優點： （ 1 ）與魯棒統計技術相結合，通過訓練樣本相對偏差的大小，確定不同訓練樣本對能量函數的貢獻，來抑制含高噪聲干擾樣本對網路訓練的不良影響，從而增強訓練的魯棒性，提高網路訓練的收斂速度； （ 2 ）採用相對偏差和絕對偏差兩種偏差形式對權值進行調整，提高了網路的訓練精度； （ 3 ）在採用梯度下降演算法對權值進行調整的基礎上，通過將學習速率設為訓練誤差及誤差梯度的特殊函數，使學習速率依賴于網路訓練時誤差瞬時的變化而自適應的改變，從而可以克服基本bp演算法容易陷入局部極小區域的弊端，使訓練過程能夠很快的「跳出」局部極小區域而達到全局最優。
  10. In the last part of this chapter, we will summarize the main results of existence, uniqueness and regularity for solution of such kind of problems. in chapter ii, we consider a class of boundary value problem for second order degenerate elliptic equations on a bounded periodic domain ft, which is homeomorphic to the cylindrical surface

    使用橢圓正則化方法分別在每個區域上討論dirichlet問題，即先構造輔助問題，並建立輔助問題的能量不等式，然後由緊性推理方法，利用輔助問題的解的某種收斂性來得到原問題的弱解存在性。
  11. In this paper, we expand eigenvalue of poisson equation using bilinear element, by the formulation of the error expanition, we can conclude that it is a upper bound. and by two numerical example, we computer the approximate eigenvalue of poisson equation in square and l - shape domains, then we analyses the approximate eigenvalue. we also extraplate the error expansion and enhance the accuracy of the eigenvalue form the second order to the forth order

    本論文對poisson方程的特徵值採用雙線性元進行展開，得到了誤差展開式，通過誤差展開式，我們能得到特徵值是上界。通過數值算例，計算方形與l形區域上的poisson方程的近似特徵值，並對數據進行分析，驗證了理論的正確性，然後通過對誤差展開式外推，收斂級數可以從二階提高到四階，得到了高精度的解。
  12. We analyzed the effect of such factors as grids size, boundary shape of region, and relaxation factor on the convergence of this iterative calculation by calculating two - dimensional iterative calculation examples. we take its conclusions as the three - dimensional iterative calculation ' s references

    利用二維算例分析了單元大小、區域邊界形狀、鬆弛因子的大小等因素對迭代收斂性的影響；在三維迭代計算方法的研究中參考、印證了這些結論。
  13. Trust region methods has drawn our attention increasingly as one approximating method guarantees general convergence. its basic step is as follows : first, we set trust - region radius, and then we get a trial step produced by constraint quadratical model

    信賴域方法是近年來日益受到關注的一種新的保證演算法整體收斂性的逼近方法，信賴域方法的基本步驟是首先指定一個信賴域半徑，然後用帶約束的二次模型來確定搜索方向與步長大小。
  14. In this dissertation, the numerical computation for the acoustic radiation problem ( arp ) is studied deeply and systematically in the theory, method and the application technique, based on analyzing the situation of the home and abroad on the numerical computation for the acoustic radiation problem. the calculation formulas of the boundary element method ( bem ) for the exterior acoustic radiation problem in the full - space and half - space are deduced, based on the wave propagation theorem ; the arising of the non - unique solutions, which is associated with the application of the boundary integral equation ( bie ) in acoustic radiation problem, is analyzed and proofed ; the improved combined helmholtz integral equation formulation ( ichief ) is presented to overcome the non - uniqueness problem more effectively and reliably ; the determination of the singular integral coefficients on various occasions is analyzed ; the properties and treatments of the singular integrals with different orders axe studied ; the computation program of the cubic spline ichief is developed and its ability to overcome the non - uniqueness problem and feasibility to discrete the surface coarsely with the sufficient calculation precision are examined through examples

    第二章在聲波動理論基礎上，詳細地推導出對應于無限域和半無限域的外部振動聲輻射問題的邊界積分方程計算公式；根據fredholm積分理論，對利用邊界積分方程計算振動聲輻射問題過程中解的非唯一性的產生進行了分析和證明；改進了chief法以提高其克服解的非唯一性的有效性和可靠性；對不同條件下奇性系數的計算、強奇性積分的收斂性及其在變量替換時與普通積分的差異性、不同階奇性積分的計算、數值求積分等進行了研究；開發了三次樣條改進chief法計算軟體，並通過算例考核了該方法在特徵波數處克服解的非唯一性的有效性和在保證計算精度的前提下實現剖分粗化以提高計算效率的可行性。
  15. Interval newton algorithm is used extensively in the calculation of chemical engineering such as the determination of phase stability, reactive azeotropes, robust process simulation, reliable parameter estimation, etc. all of these results show that interval newton algorithm is suitable to solve most kinds of nonlinear equation successfully

    由於區間牛頓法強壯的全局收斂性和同時求得多個解的能力使得區間牛頓法廣泛地應用在化工計算領域，如：相穩定性分析、反應共沸物的判斷及組成確定、穩態過程模擬、參數估計等等。
  16. Abstract : a relatively direct method is expounded in this paper to prove the termwise differentiation of power series, and a simple method is expressed to calculate the fourier coefficient

    文摘:用比較直接的方法證明冪級數的和函數在收斂域內可以逐項微分的公式；並得到了計算傅立葉系數的一種簡便方法
  17. Newton ' s method clomain of convergence theorem at infinitely space

    無窮維空間的牛頓法收斂域定理
  18. Convergence area of tor iterative method for solving least squares problems

    方法求解最小二乘問題收斂域
  19. Using the traffic investigated in some parts of road, the feasibility of estimate of od table was studied. a static multi - path matrix was designed

    （ 2 ）討論了利用部分路段的調查交通量，來推算od表的可行性，並提出了減小收斂域的一種新方法。
  20. In a two - channel system, the exhaustive equilibria are evaluated first, and then the relationship between initial demixing vectors and the equilibria is disclosed. the result shows that there are no spurious solutions in fastica when the basic assumptions in ica model are satisfied

    其中以二維系統為例，首先給出所有的平衡點，結合收斂域和平衡點的對應關系，指出在滿足ica模型的基本假設條件下， fastica演算法不存在對應獨立分量之外的偽解。
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