uniform approximation 中文意思是什麼

uniform approximation 解釋
平均近似值
  • uniform : adj 1 （形狀、性質等）一樣的，同一的；一致的；相同的。2 一貫不變的；始終如一的。3 規格一致的，均...
  • approximation : n. 1. 接近；近似。2. 【數學】近似值。3. 概算，略計。
  1. This article describes the development process of surrogate models and introduces some experiment design methods and approximation approaches that can be used for a mdo surrogate model, they are full factorial experiment design, orthogonal experiment design, uniform experiment design, central - composite experiment design, and polynomial response surface method, kriging method, radial basis function method and artificial neural network

    為此本文中分別介紹了正交試驗，均勻試驗以及中心復合試驗等幾種試驗設計方法，以及多項式響應面， kriging ，和徑向基函數等幾種數學近似方法。並且通過構造描述機翼展向升力分佈的代理模型，對上述幾種方法作了對比分析。
  2. In computation of swept volume approximation, an improved technique to generate the swept volume approximation for arbitrary meshes is presented by introducing generator simplification and path resample using frenet moving frames along the discreted sweeping trajectory. other steps, such as a directed distance field computation on a uniform grid based on the hardware accelerated computation technique and iso - surface extraction using marching cubes algorithm, are also included in this algorithm. in addition, the simplification scheme and smoothing technique are applied to the swept volume generated from iso - surface extraction

    本文的主要貢獻在於：在掃描體逼近計算方面，在原有任意多邊形網格模型沿任意路徑運動生成掃描體逼近演算法的基礎上，提出了加入對掃描母體簡化的預處理和用活動標架對掃描路徑進行重采樣等過程，演算法的其它過程還包括：計算掃描體中幾何基元的排列，用硬體加速構造無符號的有向距離場，將無符號距離場轉化為有符號距離場，從有符號有向距離場提取等值面等。
  3. In rsdm, binary patterns are replaced by real - valued patterns, accordingly avoiding the coding process ; the outer learning rule is replaced by regression rule, therefore the model has not only the ability of pattern recognition but the ability of function approximation. the prearrangement of the address array bases on the distribution of patterns. if the distribution of patterns is uniform. then the address array is prearranged randomly, otherwise predisposed with the theory of genetic algorithm and the pruneing measure so as to indicate the distribution of patterns and improve the network performance. non - linear function approximation, time - series prediction and handwritten numeral recognition show that the modified model is effective and feasible

    在rsdm中，以實值模式代替二值模式，避免了實值到二值的編碼過程：以回歸學習規則代替外積法，使該模型在具有識別能力的同時具有了對函數的逼近能力；地址矩陣的預置根據樣本的分佈採取不同方法，若樣本均勻分佈，則隨機預置，否則利用遺傳演算法的原理和消減措施來預置地址矩陣，使之反映樣本的分佈，改善網路的性能。
  4. The main design procedure involves the use of a feasible approximation method to establish a finite - dimensional and interconnected nonlinear dynamics, and then utilize the cascaded nonlinear feedback design for achieving uniform output regulation

    主要設計方式擬先採用可行近似方法建立一有限次元及內都串聯的非線性動態，接著利用串級非線性回饋控制設計使得均一輸出能規則化。
  5. This process is as follows : firstly, the data of different section contour and of section line have been obtained by reverse - engineering ; secondly, non - uniform b - spline approximation algorithm is used to fit the discrete data ; then the data have been optimized and reduced by adopting adaptive sampling of key points of the fitted curve based on vertical distance, sequently the adaptive sampling data is transformed into the format of the. ibl file of the famous 3 - d design software pro / e. therefore we reconstruct the surface and a model is generated ; lastly, the effectiveness of the adopted algorithm and modeling approach are demonstrated by the experiments

    建模型的過程中，首先運用逆向工程測量方法，獲得曲面物體上不同截面輪廓線的測量數據點列，接著對測量數據點進行平滑處理，用最小二乘法求解基於數據點列的控制多邊形，以非均勻三次b樣條曲線擬合截面輪廓曲線；然後利用基於垂距的數據采樣演算法，對擬合曲線上的數據點進行重新采樣，達到優化數據點的分佈及減少描述曲線數據量的目的。
  6. The author ' s work gives new way, which is beneficial to real time interaction and can efficiently reduce computing time as well as data storage amount. these algorithms can find good use in numerical machining, robotics, form - position tolerance and computer graphics. ( 3 ) degree reduction for nurbs curves and surfaces by applying the theory of the best uniform approximation of chebyshev polynomials and the explicit matrix representation of nurbs curves, this thesis centers on the research of the explicit nearly best approximation of multi - degree reduction of nurbs curves

    以上關于等距曲線的幾何逼近與代數逼近的演算法改革了當前國際圖形界只能對基曲線沿法矢方向平移定距離的點作近似逼近的固定模式，創造了利於交互操作，能有效地減少計算量及數據存儲量的新方法，可在數控加工、浙江大學碩士學位論文機器人、形位公差學、計算機圖形學中獲得很好的應用（ 3 ） nurbs曲線曲面降階應用nurbs曲線的顯式矩陣表示及chebyshev多項式逼近理論，以實現nurbs曲線顯式一次性降多階的近似最佳逼近為目標進行了研究
  7. A theoretical method was proposed to extend a bridge density functional approximation ( bdfa ) for the non - uniform hard sphere fluid to the non - uniform lennard - jones ( lj ) fluid

    摘要為了將非勻一硬球流體的橋密度泛函近似擴展到非勻一非硬球流體，提出了一個理論方案。
  8. Combining with practical investigation and analysis, the author presented the fitting equation of the second non - uniform coefficient in which the method of least squares error approximation with the power index regression is used and proposed a modified formula for flow rate per second calculation to precisely determine the size of pipeline and to make the design advanced in technology and reasonable cost

    本課題分析了室外和室內的設計流量公式，通過調查、實測本地區的水量資料，運用相關數學方法分析，提出了適合小區給水管網採用的流量公式。
  9. Evaluation method of multiple launcher rocket system based on uniform approximation

    用一致逼近技術評價多管火箭炮發射系統的方法
  10. Uniform second - order pointwise convergence of a hybrid difference approximation for a singularly perturbed robin problem

    基於非均勻網格求解非線性對流擴散問題的一種高精度差分格式
  11. On the best uniform approximation of a class of triangle summation operators of combination type

    關於一類組合型三角求和運算元的最佳一致逼近
  12. After the compensation based on the rule of the minimum entropy, the resolution of the cross - range image is lower as the large size and non - uniform rotation, which cause the image to be not right at all sometimes. in order to eliminate effect of the non - stationary rotation, the first order approximation and relax algorithm are adopted to search the initial frequency, amplitude, frequency modulation rate and obtain the dynamic image of the target at any time

    分析了低分辯雷達的成像演算法，建立在最小熵補償基礎上的演算法得到的橫向像的解析度仍然比較低，尤其對大的目標和機動目標，為此我們採取了一階近似的relax演算法搜索目標的初始頻率、幅度、解調率從而獲得目標的動態一維像，模擬數據和試驗結果證明該方法是有效的。
  13. Uniform approximation for combinations of gauss - weierstrass operators

    運算元線性組合的一致逼近
  14. Uniform approximation by a class of mixed exponential type integral operators

    一類混合指數型運算元的一致逼近
  15. Approximation method based on qurbs ( quasi - uniform rational b - spline ) is adopted and a iterative algorithm is introduced to improve the precision in the paper

    在曲面片的逼近中採用邊界替換演算法以保證曲面片具有公共的邊界曲線，所以達到gc ~ 0連續。
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