函數選擇 的英文怎麼說

中文拼音 [hánshǔxuǎnzhái]
函數選擇 英文
function select
  • 函 : 名詞1. [書面語] （匣; 封套） case; envelope 2. （信件） letter 3. （姓氏） a surname
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 選 : Ⅰ動詞1. （挑選） select; choose; pick 2. （選舉） elect Ⅱ名詞（挑選出來編在一起的作品） selections; anthology
  • 擇 : 擇動詞（挑選） select; pick; choose
  • 函數 : [數學] function函數計算機 function computer; 函數計算器 function calculator; 函數運算 functional operation
  • 選擇 : select; choose; opt; election; choice; culling; alternative
  1. The basic idea of this method is to produce particles from the posterior densities, and these weighted samples provide approximations to the densities. in this dissertation, sequential monte carlo method and its applications in communication are investigated. firstly, its basic idea, method and improved method are introduced, then induce the bound of particles, which determines the performance of the system, and the more particles are chosen, the higher computation is done, finally, a new detector based on new importance function is proposed, which deals with the joint channel estimation and detection in flat fading channels

    首先介紹了它的基本思想、基本方法、及當前研究現狀；在此基礎上推導出樣本數選擇的界，樣本數的選擇決定了系統的性能，但是若選的太多，計算復雜度也會隨之增大，因而給出這個界是十分有意義的；最後提出了一種基於新的重要函數的檢測器用來解決平坦衰落通道下的聯合通道估計和檢測問題，並通過模擬證明了我們提出的新檢測器的有效性。
  2. According to the time variation and feature extraction difficulty of rotating machinery vibration signals, the rule of choosing wavelet basis function and wavelet denoising soft - thresholding value is proposed after making further research on wavelet transform technique, using for denoising rotating machinery vibration signals the conception of " energy " is proposed, based on the theory that signals energy in all frequency can be affected by faults deeply, to construct feature vectors of rotating machinery vibration signals which can give a convenient disposal way to fault feature extraction and fault intellectual diagnosis

    針對旋轉機械振動信號的非平穩性及特徵難以提取的特點，通過對小波變換技術的進一步研究，提出旋轉機械振動信號處理的小波基函數選擇原則及小波包消噪的軟閥值原則。利用小波包變換對旋轉機械振動信號進行消噪處理和特徵提取。並以「能量」為元素，構造旋轉機械振動信號的特徵向量，從而為旋轉機械振動信號的故障特徵提取以及后續的故障智能診斷提供了一種便捷的處理方法。
  3. The method of optimization is the complex method. the objective function is the opration expenses of the hydrogen system. there were six decisive variables : the pressure and temperature of the high - pressure separator of vrds, gas ration to the prism unit from vrds unit and ssot unit, the pressure of the high - pressure separator of ssot and the entrance pressure of the cycle hydrogen compressor

    優化問題以氫氣系統的運行費用函數作為目標函數，選擇了6個決策變量，分別為： vrds高壓分離器壓力、溫度、 vrds和ssot裝置排入prism的氫氣量、 ssot高壓分離器壓力和循環氫壓縮機入口壓力。
  4. Parameter selection in svm with rbf kernel function

    核函數的支持向量機參數選擇
  5. The results of comparative analyses in this paper can be used to select and simulate the envelope of earthquake ground motion

    文中的比較分析結果可以用於地震動包線函數選擇和模擬。
  6. According to the actual situation and performance requirements, how to impair the influence of the disturb torque and the uncertainty of the system object model and how to improve stabilization and tracking accuracy are the principal difficulties in this paper. to solve these problems, a method by using mutative - plus and high - order compensation is brought forward and design by adopting h mixed sensitivity method in the velocity loop, then the weighting function selection is discussed, and the concrete selection principles are given in details

    根據本系統的實際工作情況和性能指標要求，通過分析指出，如何克服機（艦）載條件下干擾力矩的影響及系統對象模型的不確定性是本系統中提高穩定精度和跟蹤精度要重點解決的問題，針對這一問題，提出了在速率穩定環採用變增益的串聯高階校正設計控制器和利用h _混合靈敏度方法進行控制器設計的方法，詳細討論了加權函數選擇的問題。
  7. Taking 1951 ~ 2000 monthly rainfall data in the zhanjiang area as the time series and using the gaussian radial base function and a delayed input window chosen at 6, a new intelligent forecast system is developed based on radio basic function neural network ( rbfnn ) to predict monthly rainfall from 1991 to 2003

    摘要以湛江地區50年來的月降水量為時間序列，利用高斯徑向基函數，選擇輸入窗口（時滯）大小為6 ，建立了一種智能型的徑向基函數神經網路預測系統，並分別對1991 ~ 2000年和2001 ~ 2003年的月降水量進行了測試預報和獨立樣本預測。
  8. To compensate the shortage of the bigger test set of pure ant algorithm, the method of crossing ant algorithm and genetic algorithm is presented. meanwhile, the implementation methods of the objective function, selection operator, crossover operator, and mutation operator are given, and the test results are compared with the results of ant algorithm, based on standard sequential circuits iscas ' 89

    為彌補單純採用螞蟻演算法進行測試矢量生成時，測試矢量集過大的缺點，摘要提出了螞蟻演算法和遺傳演算法交叉的測試生成方法，給出了遺傳演算法的目標函數、選擇運算元、交叉運算元、變異運算元的實現方法。
  9. In this paper, the author chooses many box girder modules with different dimension justified and analysis the modules with fem ( finite element method ). the result of fem is fitted with ga, coefficient of fitted functions can be got

    本文通過合理選擇箱梁計算模型，得出幾種模型的有限元結果，將數據整理歸類，採用遺傳演算法進行擬合參數選擇，以擬合多項式來調整剪力滯位移函數。
  10. Which does the work of selecting the needed pages and writing them to the specified destination

    ，該函數選擇所需的頁並將其寫至指定的目的地。
  11. Finally, according to the process of selecting uncertain parachute design parameters, we present the fuzzy knowledge representation combining production rule with certainty factor and possibility - distribution function. on these bases we establish a fuzzy decision model, using rule - based reasoning and synthesized fuzzy evaluation, for uncertain parameters

    通過對不確定參數選擇過程的分析，提出在降落傘設計參數決策專家系統（ pdpdes ）中採用帶可信度的產生式規則與可能性分佈函數相結合的模糊知識表達方法，在此基礎上給出了基於規則推理與模糊綜合評判演算法相結合的不確定參數模糊決策推理模型。
  12. Secondly, a solution based on the theory of function approximation is proposed to select the key parameter of neural network

    其次，在神經網路關鍵參數選擇問題上，提出了一種基於函數逼近思想選擇網路參數的方法。
  13. In case of high input dimension system model, taking norm of input vector as the input of wavelet network instead of using tensor product method to construct wavelet network, which could solve the problems of high computation and curse of dimensionality. in the selecting of specific wavelet basis, this thesis first gets initial wavelet basis collection according to spectrum analysis, then gives the least squares regression algorithm to optimize wavelet basis collection based on the least estimation error criteria, which could also initialize the model parameters and increase the speed of convergence

    對于具體的模型小波基函數選擇，本文首先對樣本數據進行時頻域分析，根據小波基函數時頻空間覆蓋樣本時頻空間的原則，在小波框架中選擇建模所用的函數集，然後根據估計誤差最小準則，給出最小二乘回歸優選演算法以進一步優化小波基函數集。
  14. You can select a different function by double - clicking any function in the before or after list to make it the called function

    您可以通過雙擊前後列表中的任意函數選擇一個不同函數，使其成為已調用的函數。
  15. If you feel that your choice of visibility for a member function will be questioned by other developers - perhaps youve made a member function public before other objects invoke the member function - you should document your decision

    如果您覺得其它開發人員會懷疑您對成員函數選擇的可見性或許在其它對象調用該成員函數之前，您已經使該成員函數變成公共的您應該對您的決定編制文檔。
  16. The work was done as follows : 1. this paper analyses the key element of matching algorithm namely matching primitive, measurement function, search strategy, evaluation mechanism and in common use matching algorithm, and presents their applicable instances and their relative merits

    採用的檢測演算法主要以區域小模板匹配演算法為基礎，匹配基元選擇灰度和梯度，度量函數選擇最小絕對差和和ml距離，匹配演算法存在1個像素的誤差。
  17. Moreover, other networks, such as function networks, have appeared. they work on the same principle of neural networks. but they can choose different functions for hiding layer, so they can approach chaos easier

    神經網路控制結構及自身演算法的改進是今後研究的熱點，模擬神經網路的工作原理而出現的其他網路：如函數網路等，由於隱層函數選擇范圍的擴大，能更容易的實現混沌系統的逼近，也代表了神經網路應用於混沌系統的一種發展方向。
  18. Some key steps of the evaluation system was discussed including establishment of index system, selection of subordinate degree function, distribution of index weights and evaluation techniques for secondary level fuzzy evaluation, which can make the established system more scientific and objective

    文章就模糊綜合評價體系中評價指標體系的建立、隸屬度函數選擇、因子權重分配方法以及二級評判方法等幾個關鍵環節和步驟作了初步探討，以期所建立的評價體系更科學、更客觀。
  19. The performance of existing blind source separation methods is highly affected by the non - linear contrast functions that are selected according to the distribution of original signals, and the separation results are not always ideal, especially for the mixture of super - gaussian signal and sub - gaussian signal

    摘要針對現有盲源分離演算法的性能依賴于對比函數選擇的現象，提出了一種基於遺傳演算法的盲源分離演算法，該演算法直接從信號的樣本序列中估計出信號的概率分佈，解決了信號間互信息的求解問題。
  20. The hole designed this way can make some objectives optimum while the classic methods could not. this thesis firstly introduced the optimization methods based on dynamic programming presented the objective function to be optimized according to its rolling technological features, selected appropriate optimization methods to make optimization, and realized with computer programs

    本文首先對基於動態規劃的優化設計方法進行了介紹，並以一個實際的孔型系統為例，根據其軋制工藝的特點提出所需優化的目標函數，選擇適當的優化方法進行優化，並用計算機程序予以實現。
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