近似數據 的英文怎麼說

中文拼音 [jìnsìshǔjù]
近似數據 英文
approximate data
  • 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...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 據 : 據Ⅰ動詞1 （占據） occupy; seize 2 （憑借; 依靠） rely on; depend on Ⅱ介詞（按照; 依據） according...
  • 近似 : approximate; similar; approach; approximation; roughness; propinquity
  • 數據 : data; record; information
  1. Optimized association rules are permitted to contain uninstantiated attributes. the optimization procedure is to determine the instantiations such that some measures of the roles are maximized. this paper tries to maximize interest to find more interesting rules. on the other hand, the approach permits the optimized association rule to contain uninstantiated numeric attributes in both the antecedence and the consequence. a naive algorithm of finding such optimized rules can be got by a straightforward extension of the algorithm for only one numeric attribute. unfortunately, that results in a poor performance. a heuristic algorithm that finds the approximate optimal rules is proposed to improve the performance. the experiments with the synthetic data sets show the advantages of interest over confidence on finding interesting rules with two attributes. the experiments with real data set show the approximate linear scalability and good accuracy of the algorithm

    優化關聯規則允許在規則中包含未初始化的屬性.優化過程就是確定對這些屬性進行初始化，使得某些度量最大化.最大化興趣度因子用來發現更加有趣的規則;另一方面，允許優化規則在前提和結果中各包含一個未初始化的數值屬性.對那些處理一個數值屬性的演算法進行直接的擴展，可以得到一個發現這種優化規則的簡單演算法.然而這種方法的性能很差，因此，為了改善性能，提出一種啟發式方法，它發現的是近似最優的規則.在人造數據集上的實驗結果表明，當優化規則包含兩個數值屬性時，優化興趣度因子得到的規則比優化可信度得到的規則更有趣.在真實數據集上的實驗結果表明，該演算法具有近似線性的可擴展性和較好的精度
  2. Report ucb csd - 01 - 1141, university of california, berkeley, usa, 2001. 8 cuenca - acuna f m, nguyen t d. text - based content search and retrieval in ad hoc p2p communities

    本文針對上述問題，提出對等數據系統中的摘要索引結構及建立在此基礎上的基於內容的近似查詢處理方法。
  3. Approximate number of kilobytes of data per batch as

    每批以千位元組計的數據的近似值（即
  4. This kind of two - channels wavelets decomposition methed reconstruct the wavelet coefficients of an image from the radon transform data, and these coefficients were made reverted wavelet transform obtain the original image. wavelets subsampled on the quincunx lattice, which can have cut - off at an angle during the wavelets decomposition

    基於不可分離mra的小波演算法將投影數據進行二維濾波，其二通道的小波分解直接得到小波的近似系數和細節系數，這些系數再經過逆小波變換就得到了最終的重建圖像。
  5. A new approximate adjustment method for arbitrary centralized polygon is developed, together with its corresponding programme. an example is given to illustrate its higher computation efficiency, compared with the traditional method. both results are identical

    本文導出了中點多邊形近似平差的新演算法，並給出了適合任意中點多邊形平差的計算程序，計算結果和傳統方法一致，但避免了數據的重復輸入，提高了計算效率。
  6. Based on the correct evaluation of the means and covariance of the measurement error in cartesian coordinate system, the algorithm processes the radar measurements sequentially, and the linearization of measurement equation is no longer neccessary

    作者推導了有測速數據時的去偏轉換卡爾曼濾波演算法。此演算法估計精度和計算效率比以前的方法有較大改善，對測量方程不做近似處理。
  7. The discussion of main parallel technologies on construction of parallel sliq algorithm is presented in this paper. the computing result of algorithm complexity of sequential and parallel algorithm indicates : when the data set is large enough, as to continuous attributes, the parallel algorithm almost get speedup value equal to the number of processors ， while as to categorical attribute the improvement of parallel algorithm is limited

    通過對串列和并行演算法時間復雜度的計算表明，當數據集充分大時，由於連續屬性的排序計算操作分散到各個處理機單元上進行，顯著降低了計算時間，從而可以得到近似於處理機個數的加速比，對于離散屬性，本并行演算法對串列演算法的性能提高有限
  8. The class of distributions includes the weibull, burr - type x, pareto and beta distributions. a proper general prior density function is suggested, and predictive density functions are obtained in one - and two - sample cases when the history sample is a type ii double censored sample. illustrative examples are given

    在type雙刪失數據場合下，討論了雙參數burr - type分佈參數的貝葉斯估計，在所取的損失函數分別為平方損失， linex損失，熵損失函數下得到了參數的貝葉斯估計，並且給出一種近似演算法。
  9. Experimental results show that the proposed method can reduce the computational complexity significantly compared with the full search method, and maintain similar decode visual quality and coding bit rate, then improve the ray - space data coding efficiency

    實驗結果表明，與全搜索方法相比，該方法計算復雜度明顯降低，同時保持了近似的解碼圖像質量和編碼碼率，進一步提高光線空間數據的編碼效率。
  10. Due to the short distance among the planes which fly in a group, the conventional low resolution radar can not distinguish them in both distance and azimuth ? if we use the technology of isar to resolve the difference among doppler frequency of the targets and obtain a fine resolution cross - cross image, we may separate them, but a long time of coherent processing is needed <, for the formation targets, it can be approximately divided to rigid body and nonrigid body, so for the formation targets, that can be regarded as rigid which has a relative position and an identical movement, can be approximately considered as a large target, and be compensated by translational phase with the rule of minimum entropy, but for the most those cannot accord with the approximation of rigid, being the doppler - frequency of the aim is linear changed, by the relax method with short data, increases the resolving performance of multiple target to the aim in the frequency domain, since cross - range resolution is based on the accumulative time, so it is greatly improve the resolution to formation targets by the instant cross - range image which produced by radon - wigner transformation

    低分辨isan成像及干涉技術應用研究一因此直接無法分辨編隊目標的架數，我們借鑒isar的技術，通過較長時間的相干積累，在多普勒頻域上對目標進行分辨。而對于編隊目標，可分為近似剛性的多目標和非剛性的多目標，所以對于可以近似為剛體的編隊目標相對位置固定，運動方式一致，可以近似看作一個大目標，採用最小墑準則對平動相位的進行補償，但是大多數並不滿足剛體近似的編隊目標，由於目標在相干積累時間的多普勒頻率近似呈線性變化，通過對較短數據利用relax的時頻分析方法，提高了頻率域上目標分辨的性能。由於橫向解析度取塊于橫向積累時間，所以利用radnwigner變換得到瞬時的一維橫向距離像大大提高了對編隊目標的分辨，對模擬和實測數據的大量分析結果表明此方法的有效性和可行。
  11. Lastly, we discuss the energy - band structure of ultracold atoms in optical lattice by means of green function method and in addition, procure the superfluid - mott phase transition condition in mean - field approximation which is in agreement with the result in the literature

    最後利用格林函數方法討論了光格子中超冷原子的能帶結構，根據mott相存在能隙的判據我們在平均場近似下重新得到superfluid - mott相變條件，該結論與相關文獻一致。
  12. Based on many references, a evaluating function is proposed with performance index of hall call waiting time ( hwt ), people number in a car, energy consuming. the statistic approximation algorithm for hwt is introduced, based on the analysis of elevator traffic state, the calculation of traveling distance and stop number is explained in detail in the thesis. according to the characteristics of the elevator, a group of elevator teaching signals are constructed, by which the weight coefficients are trained according to the widrow - hoff rule

    本文在借鑒了大量的文獻基礎上，提出以平均等候時間、轎廂人數、能源消耗為性能指標的評價函數；詳細介紹了乘客待梯時間hwt的統計近似演算法；基於對電梯交通狀況的分析，對停層次數和運行距離這兩個重要參數的計算進行了詳盡的介紹；依據電梯運行特性參數，構造一組電梯運行教師信號，並採用神經網路的widrow - hoff學習規則訓練權系數。
  13. For the stress analysis of dryers under the line load of supporting rollers, according to hoff theoretical solution of thin cylindrical shell under line loads, mangelsdorf approximate solution is modified on the basis of the calculation analysis for 14 sets dryers " dimension by computer programming with matlab software. the approximate formulas of the second largest hoop stress of the middle section of the shell are derived

    針對托輥線壓載荷作用下烘缸的受力分析，本文根據薄壁圓柱殼在線壓載荷作用下的hoff理論解，在運用matlab軟體對14組常用烘缸參數進行編程計算分析的基礎上，對mangelsdorf近似解作了修正，並由最小二乘法導出殼體中部截面環向應力次大值的近似計算式。
  14. 4. based on the theory of kirchhoff approximating and the model of franceschetti facet field simulating, an algorithm for the computing the facet backscatter coefficients is presented

    4 .基於kirchhoff近似理論和franceschetti地面場景模擬模型，實現了一種根據小平面單元與sar之間的幾何關系計算小平面單元後向散射系數的演算法。
  15. According to the geometrical characteristic of the arch dam shape, and based on the parameter design language of ansys software ( apdl ), the subp method and the stochastic search method are adopted together to optimize design of hyperbolic arch dam with variable thicknesses of the circle

    摘要根據拱壩體形的幾何特徵，基於ansys軟體的參數化設計語言（ apdl ） ，將零階近似方法和隨機搜索法結合起來對單圓心變厚度雙曲拱壩進行了優化設計。
  16. Finally, the three kind of calculating formula about ultimate bearing capability under the sticking gfrp to reinforce concrete pole will be brought forward according to experiments " result, which is valid can be used in many other practical reinforce projects effectively

    最後提出gfrp組合rc柱設計承載能力的三種不同計算公式即箍筋比擬法、綜合系數法、近似平衡法，以便能有效地應用到實際加固工程中去。通過本試驗中的試驗數據證明，這三種方法都是有效的。
  17. Precision of approximate numeric data, exact numeric data, integer data, or monetary data

    近似數值數據、精確數值數據、整數數據或貨幣數據的精度。
  18. Scale of approximate numeric data, exact numeric data, integer data, or monetary data

    近似數值數據、精確數值數據、整數數據或貨幣數據的小數位數。
  19. For more information about how to use approximate data types, see

    有關如何使用近似數據類型的詳細信息，請參閱
  20. Precision radix of approximate numeric data, exact numeric data, integer data, or monetary data

    近似數值數據、精確數值數據、整數數據或貨幣數據的精度基數。
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