data polynomial 中文意思是什麼

data polynomial 解釋
數據多項式
  • data : n 1 資料，材料〈此詞系 datum 的復數。但 datum 罕用，一般即以 data 作為集合詞，在口語中往往用單數...
  • polynomial : adj. 1. 【動、植】多詞學名的。2. 【數學】多項式的。n. 1. 【動、植】多詞學名。 2. 【數學】多項式。
  1. Local polynomial estimation method is a kind of a nonparametric estimation methods which are based on data - analytic approaches

    局部多項式方法是基於數據來選擇模型的一種非參數方法
  2. Based on the results of the edge anchor, several segments of the height data are selected and linear polynomial fitting are done using least square approximant on these segments separately

    根據臺階邊緣檢測結果，選取部分采樣點數據，用最小二乘法進行直線擬合。
  3. Under windows nt and labview development environment, using the linear fit module, exponential fit module > general polynomial fit module of labview to design a method for fitting the experiment data, the results of curve fitting indicate that the purpose of general polynomial fitting is better than the rest. separating the equivalent input impedance of magnetostrictive transducers without stimulate current from input impedance of it with stimulate loop based on the results of curve fitting, and determining the syntony frequency and electric simulation network parameters of magnetostrictive transducers by this input impedance. finally, with labview network functions, realizing magnetostrictive transducer electric simulation system based on web server and discussing a scheme for this system network by datasocket. the method of this paper can more accurately determine the syntony frequency and electric simulation network parameters of magnetostrictive transducers than the testing method of syntony & anti - syntony. at the same time, discussing virtual instrument measurement system and how to realize magnetostrictive transducer electric simulation network system by labview network functions of network virtual instrument measurement development environment

    在windowsnt系統環境和labview虛擬儀器技術開發平臺下，首次利用labview中的直線擬合模塊、指數擬合模塊以及多項式擬合模塊，設計了一種對實驗所得數據進行曲線擬合的方法，對三種擬合方法進行了比較，曲線擬合結果表明，多項式擬合方法相對于其它兩種擬合方法效果更好；根據曲線擬合的結果可從帶激勵線圈的磁致伸縮換能器的輸入阻抗中分離出磁致伸縮換能器鐵芯在無激勵電流時機械振動形成的等效輸入阻抗，並由此輸入阻抗確定了磁致伸縮換能器的諧振頻率及其電氣模擬網路參數；最後通過labview提供的網路功能，實現了基於web服務器的磁致伸縮換能器電氣模擬虛擬儀器測試系統，並探討了通過datasocket技術實現該系統網路化的方案。
  4. In the terms of interpolation, the image reconstructed from nearest interpolation or linear interpolation has good edge but serious noise ; reconstruction from 4 * 4cubic interpolation or three b - spline or three - order lagrange interpolations has better local character. 2 x 2cubic interpolations which has both better edge and local character is the ideal interpolation, the following is the basic principle during reconstruction : ( 1 ) the more width of interpolation, the more number of summation and the more order of interpolation polynomial, the higher of density resolution ; ( 2 ) the more of interpolation polynomial and width of interpolation, the more of reconstruction time simultaneously, aimed at eliminating the effects of noise contained in projection data, in this paper, author analysis cause and effects of common artifacts. importantly, discusses convolution back - projection reconstruction algorithm with a shift axis of rotation has been derived for correcting images that acquired with a divergence axis of rotation using the fan beam geometry with an angle - equaled detector

    在ct圖像重建時，選擇有限帶寬窗有較好的空間解析度，三角形窗有較好的密度解析度，選擇餘弦窗則使得空間解析度與密度解析度的折衷；從窗函數的頻譜角度來講，可以用於圖像重建的一個良好的卷積窗函數應該具備以下條件： （ ? ）小的3db帶寬b ，即最小的主瓣寬度； （ ? ）最小的旁瓣最大峰值a ； （ ? ）最大的旁瓣峰值衰減速度d ；就內插函數而言，臨近點內插與線性內插重建圖像噪聲大，但有較好的邊緣與細節； 4 4三次內插、三次b -樣條與四次拉格朗日多項式內插圖像平滑，局部特性較好。
  5. A new method for determining knots to construct polynomial curves is presented. at each data point, a quadric curve which passes three consecutive points is constructed

    一般認為，在滿足給定約束條件的前提下，一條曲線具有的應變能越小，則該曲線的形狀就越好。
  6. Based on the cutting force surface model, a polynomial equation of side cutting depth and feedrate is created to calculate the feedrate of each cl data and the calculated feedrate value is written out with the g - code position data block to an updated version of the die - cavity

    基於切削力曲面模型，採用多項式擬合的方法構建刀具在許可切削力下的側向切深和進給率的方程，根據建立的方程計算每個刀位點處的進給率並反寫到初始的g代碼文件中。
  7. First. adjust the fiber to get the interferogram, use the four - step phase shifting method control the change of phase, achieve phase shifting. in data processing, take the pzt ' linear influence into account, calibrae the pzt. unwrapping the phase, gain the continuity, get the actual phase. analyzing the data with zernike orthogonal methord, fit polynomials that are not orthogonal over the data points, through visual c + + program, obtain polynomial parameters. calculate the shape of the surface, compare the result with zygo, then achieve the better experimental result

    首先，經光纖耦合輸出調整得到干涉圖，採用四步相移方法，控制干涉圖位相變化，實現相移；數據處理過程中，考慮壓電陶瓷的非線性影響，進行標定；對位相進行模式展開連續性處理，得到實際位相；用zernike多項式正交化方法分析，在離散點上處理數據，經visualc + +程序設計，得到多項式系數，計算出面形分佈，同zygo所得結果進行比較。
  8. Weighted combination interpolation by piecewise quadric polynomial to scatter data points

    散亂數據點分片二次多項式加權平均插值
  9. The constructed surface is c2 continuous on the whole domain, and is a piecewise cubic parametric polynomial on every subdomains. the interpolating surface can preserve the convexity, concavity, inflection property and monotonicity of the data set. in the end, each algorithm brought forward in the paper is exemplified, at the same time, error is discussed

    3針對保形曲面插值問題，提出了一種插值于給定數據點集的參數型保形曲面插值演算法，所構造的曲面在整個區域上是c ~ 2連續的，在每個子區域上是分片三次參數多項式，並且保持被插函數集的所有子區域的邊界及其內部的軸向單調性、凸凹性以及拐點性質。
  10. Based on the historical data of shanghai port container throughput, forecast models are established by using grey prediction model and cubic polynomial curve prediction model

    摘要利用上海港國際集裝箱吞吐量的歷史數據，分別採用灰色預測法和三次多項式曲線模型建立了單項預測模型。
  11. And then, the thesis import a thrice - polynomial technology to depict the yield curve of shanghai stork exchange market and gained the yield curve chart. under one factor model hypothesis, deduce the bond pricing formulae. based on 1945 data of buy - back rate in banking market, the thesis use ols and gmm estimation technologies to estimate the parameters of vasicek model, cir model, and ckls model, and verify which model can explain the china market ’ s short rate ’ s wave

    然後，從實證的角度，用三次多項式來擬合上交所國債收益率曲線，並得出收益率曲線圖，在單因素模型推導了動態理論期限結構下的債券定價公式，並以1945個中國銀行間債券市場7天回購利率數據作為短期利率的代表，驗證vasicek模型、 cir模型與ckls模型是否適用中國短期利率的波動行為，估計出三個模型的參數。
  12. This algorithm improves confidence in se by estimating parameters and states at the same time. simulation results on test power systems which range in size from 4 to 118 buses, have shown the virtues as follows : getting unbiased estimation without detecting and identifying bad data in measurements ; solving state and parameter estimation for power system with good convergence and excellent robust property ; increasing the numbers of iterations a little bit with the test systems expanded ; estimating many transformer taps simultaneously and remaining the main state estimation ; keeping the estimated relative error within + 0. 1 % and processing efficiently equality constraints and ill condition with polynomial complexity

    對ieee ? 4 118節點系統和廣西主網進行的模擬結果表明： l1范數估計具有不良數據拒絕特性，當量測量中存在不良數據時，該演算法在不經檢測和辨識不良數據情況下仍是無偏估計，具有良好收斂性，所需迭代次數隨著問題規模擴大而增長極小；能夠同時估計多個變壓器抽頭，並保持狀態估計主體；在滿足可觀測性條件下，估計的相對誤差保證在0 . 1以內；能夠有效處理等式約束和病態條件，並具有多項式時間性。
  13. Therefore, spca gotten via selecting polynomial kernel functions is more accurate than pca in multi - index evaluation system, and has fewer dimensions. comparatively, for spca using gauss kernel function and laplace kernel function, it is required to normalize original data according to the category, and the constructed evaluation functions are better than the ones constructed via using pca. however, if variance contribution of first principal component of pca is more than 85 %, evaluation function curves of spca and pca are similar

    在作多指標評價中，選用多項式核函數而得到的譜主成分分析，比主成分分析得到的主成分具有維數低且精度高的優點；而用gauss核函數和laplace核函數的譜主成分分析，需對原數據作同類別數據間的規范化，其構造的評價函數也優于用主成分方法構造的評價函數。
  14. Some theoretical extensions are first made in this paper, with the following concepts, theorems and models presented - partial derivative and high - order partial derivative of waveform polynomial for describing the relation between input transitions and output transitions and redefining circuit sensitization ; the concept of waveform polynomial vector for describing a circuit with multiple inputs and outputs, especially for the unified description of circuit modules ; a sensitization theorem for sequential circuits for the purpose of exact timing ; theorems for transition numbers in circuits used to solve problems on noise, power consumption and etc ; waveform polynomial description for sequential circuits used to give a unified form for the function and timing behavior of a sequtial circuit ; and a data structure of generalized list for the representation and manipulation of waveform polynomial

    波形多項式偏導和高階偏導的新概念，用來精確描述輸出跳變與輸入跳變之間的關系，並在本文中用來重新定義了電路的敏化和冒險；波形多項式向量的概念，用於形式化描述實際中的多輸入多輸出的電路，特別是用於統一描述電路模塊的功能及定時行為；時序電路的敏化定理，用於時序電路精確定時分析；波形多項式描述跳變及跳變數的定理，用於噪聲、功耗等問題的描述；時序電路的完整波形多項式描述，用於時序電路功能和定時行為的統一描述；波形多項式的多項式符號表示和運算的模型以及數據結構，用來實現對波形多項式比較有效的描述和運算。
  15. First, on study of the characteristics of hydrate and the focus system, software about seismic wavelet, fitting of a polynomial are developed and applied and the model suitable for processing hydrate data is successfully created. modification has been made to the in - put and out - put of the focus system, making it possible to process the hydrate data

    首先，我們根據focus系統的特點，結合天然氣水合物的特徵，開發並研製應用了地震子波處理軟體、多項式擬和濾波軟體，並將這些軟體成功地移植到focus系統上形成了適合天然氣水合物資料處理的模塊，同時對focus地震處理系統的輸入和輸出部分進行了完善，使其能承擔天然氣水合物地震資料處理的任務。
  16. Secondly, against the problem that the linearity of inductive micrometer is poor in wide ranges, it compares with the usual methods of non - linearity compensation, and then determines the method used in the system based on the research of characteristic curve of sensor in detail. then, it gives the detailed designs of the embedded application software and the arithmetic of non - linearity compensation. finally, the paper deals with experimental data and analyses the experimental results, with a conclusion shows that the polynomial fitting is a useful method to solve non - linearity of inductive micrometer

    首先，針對電感位移傳感器數據處理量大、實時要求性高的特點，確定採用嵌入式處理晶元pxa271作為處理器，並根據實際需要確定性能指標;然後，針對電感位移傳感器在大范圍內線性度差的問題，通過對常用的非線性補償方法進行比較，在詳細研究傳感器特性曲線的基礎上，選用分段多項式擬合的方案進行補償;在此基礎上，對嵌入式應用軟體設計給出了詳細的設計流程和分析說明，最後，對設計的系統進行實驗和數據分析，處理的結果滿足設計的性能指標，說明分段多項式線性擬合的方法在解決電感微位移傳感器非線性問題上是可行的。
  17. Different metamodels such as single polynomial regression, radial basis function, and support vector machine have respectively applicable characteristics and performance for different simulation experiment data

    單個多項式元模型、徑向基函數元模型與支持向量機元模型有各自的適用特點，對不同模擬實驗數據的性能表現不同。
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