相對極小值 的英文怎麼說

中文拼音 [xiāngduìjíxiǎozhí]
相對極小值 英文
relative minimum
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 對 : Ⅰ動詞1 （回答） answer; reply 2 （對待; 對付） treat; cope with; counter 3 （朝; 向; 面對） be tr...
  • 極 : i 名詞1 （頂點; 盡頭） the utmost point; extreme 2 （地球的南北兩端; 磁體的兩端; 電源或電器上電流...
  • 小 : Ⅰ形容詞1 （體積、面積、數量、強度等不大） small; little; petty; minor 2 （年紀小的; 年幼的） youn...
  • 相對 : 1. （面對面） opposite; face to face 2. （非絕對的） relative 3. （比較的） relatively; comparatively
  1. The main operating transformer connected by a adscititious tandem on - load - tap - changing one is the important mode. about this question readers can get a correct and detailed answer from this paper

    通過基本定義和有關名牌值進行了計算和分析，認為在正負極限檔，外加串聯調壓變的阻抗值相對額定檔的偏差很小，所以可不必在意這種變壓器整體阻抗的偏差值。
  2. Results show that the spatial distribution of the precipitation of the west is very uneven and obviously different in every quarter ; the characteristics of precipitation is droughty and less - rain in almost all part in winter. plentiful in summer, spring and autumn are transition phases, rainfall of autumn is more than that of spring in the most of region ; relative variability of each season rainfall is bigger than that of year, the variability is biggest in winter, but smallest in summer. alike between spring and autnmn and comprative in numerical value ; the area of least precipitation is in talimu basin and the northwest of chaidamubasin, not in the northwest of china

    研究發現：西部地區年降水量的空間分佈極不均勻，局地差異大；冬季絕大部分地區乾旱少雨，夏季雨量豐沛，春秋季是過渡階段，大部分地區秋雨多於春雨；各季降水量的相對變率大於年變率，夏季最小，冬季最大，春秋兩季相似，數值上與冬季相差無幾；我國雨量最少的地區位於柴達木盆地西北部和塔里木盆地，並不在我國的最西北角。
  3. The first one : fitting together ultimate values of every dimensions in one dimension - chain one by one, educing many equations by itself, calculating results, and comparing these results of close dimension to find maximal and minimal values. the second one : projecting all dimensions on two preestablished axis, then providing the solutions to analyze whether every projected dimensions is increscent or decreasing, and synthesize the effect of every projected dimensions to close dimension, educing many equations by itself, at last calculating the result of close dimension. the third one : according to monte carlo analysis, getting every dimensions " values from every dimensions " tolerances at random time after time, simulating the actual circumstances of mass production using these dimensions, and calculating reasonable results of close dimension economically

    鑒于這類系統在各大中小型企業的廣泛應用與相對滯后的研究水平，本文提出了三種新的能切實地解決目前尺寸鏈計算機輔助分析解算中存在的各種難題的設計方案，第一種方案將尺寸鏈中各組成環能取的極值組合起來，自動列方程組，求解每個組合情況下的封閉環尺寸，最後比較這些結果，得出封閉環的最大最小值；第二種方案將尺寸鏈各組成環向預先設定好的兩個方向投影，之後再分析各尺寸環投影分量的增減性，並且提供了組成環兩個方向上的投影分量增減性不一的復雜情況下的解決辦法，綜合組成環各投影分量的增減性，然後自動列出方程組，最後根據各組成環的投影分量以及所列的方程組來確定尺寸鏈封閉環的尺寸；第三種方案以蒙特卡洛法為原理，在尺寸鏈各組成環的取值范圍內使用計算機產生大量隨機數，模擬實際大批量生產中的零件尺寸分佈情況，以更經濟更合理的方式分析、計算封閉環尺寸。
  4. 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。
  5. From the second to the fifth chapter such problems concerning state - owned property right are illustrated respectively as its definition, valuation and price fixing and capital sources of undertaking party and the disposal and use of transfer income. problems are raised with regard to the process of current property right system diversity in state - owned enterprises, such as the disagreement to the definition of state - owned property right, no standard of evaluation, imperfection of price fixing system and relative confusion of transfer income disposal and use. what ' s more, new solutions are offered : the probe into state - owned property right definition " changsha model " is confirmed positively ; two specific ways of quantification - - " the method of average growth rate of state - owned property right " and " the method of average cost of labor in market " ; the concept " present value of earnings " is applied to the property evaluation of receivable accounts, finished goods, invisible assets and so on ; the unjust in price fixing of state - owned property right can be avoided by improving property valuation methods, perfecting capital market especially property right trading market and bettering information publishing system ; as to the guarantee problem of human resources financial contribution, an original key is offered

    第一章運用產權理論對國企產權多元化改革進行經濟學分析；第二章至第五章主要圍繞國有產權的界定問題、評估問題、定價問題、承接方的資金來源問題、轉讓收入的處置運用問題分別進行闡述，指出了當前國企產權多元化過程中存在著國有產權界定不統一、評估不規范、定價機制不完善、處置運用相對混亂等諸多問題，並提出新的解決思路：肯定國有產權界定「長沙模式」的積極探索意義，提出量化職工創造剩餘價值的「國有資產平均增長率法」和「平均市場勞動成本法」 ；將「收益現值」概念運用到對應收賬款、產成品、無形資產等資產評估之中；應從完善資產評估方法、完善資本市場特別是產權交易市場和健全信息公開機制三個方面來解決國有產權定價不公問題；就人力資本出資的擔保問題提出實際債務承擔額（比例）應小於名義出資額（比例）的新思路，並認為人力資本市場上的交易價格應包括絕對出資額和相對出資額兩部分。
  6. The algorithm, basing on convolution filtering technique and the fringes " gray values max - min distribution, can automatically and accurately carry out space frequency spectra shifting without spectra analysis and spectrogram in the technique of phase method of projected grating for 3 - d object shapes measurement. the new algorithm makes image processing much caster and the technique of object shapes measurement more automated. the phase error caused by filtering and the crossed - optical - axes geometry setup is also discussed

    本文採用投影光棚相位法和數字卷積濾波技術：根據柵線的條紋灰度值分佈具有極大極小分佈的特性，提出卷積濾波形貌光學自動檢測的圖像處理方法，有效地實現了頻譜自動移位，從而進一步提高了圖像處理的速度和形貌測量技術的自動化程度；同時對採用兩光學主軸相交，且非遠心投影系統所產生的誤差進行了分析，並提出了修正方法。
  7. Abstract : the sample breakdown point of a test is defined as the smallest proportion of arbitrary outlier in the sample that reverses the test decision. in this paper, wegive the sample breakdown point of a test for maximum likelihood estimate of exponential distribution parameter and analyze the asymptotically normal characteristic of the sample breakdown point

    文摘:如何量化一種統計方法對異常值的不敏感性一直是穩健統計研究的一個重要課題.檢驗的樣本崩潰點是樣本中能逆轉判決的離群值的最小比例.在研究相關文獻的基礎上，計算出指數分佈參數極大似然估計檢驗的樣本崩潰點，並分析了樣本崩潰點的漸近正態性，為量化統計方法的穩健性提供了一種新的途徑
  8. The choice of laser output window height is relation to many factors, such as pressure loading, thermal loading, yield stress, influence on wavefront, failure by fatigue. spherical windows can endure higher laser intensity. however, it brings some phaseshifts, which connect with laser windows parameters

    激光器輸出窗口厚度的選取與壓力載荷、熱載荷、材料極限強度、厚度對波前的影響、材料疲勞等多種因素有關，由於球殼窗口能承受較高的功率密度，但窗口本身帶來相移，該相移大小與窗口參數有關，根據位相均方根值選擇球殼窗口參數。
  9. This paper applies wavelet theory to process data analysis, mostly focusing on signal de - noise and data compression. the main contributions of this thesis are as follows : 1 ) as discussion and experiment of de - noise method for removing white, noise from pulp thickness signal, a method was developed by utilizing the different characters of evolution of the wavelet transform maximum across scale of efficient signal and noise

    本文所作的工作如下： 1 ）利用小波變換下有效信號和噪聲在多尺度空間中不同的模極大值傳播特性，給出了一種去除紙漿濃度檢測信號中的白噪聲的演算法，編制了相應的程序，作為對紙漿濃度檢測信號去噪方法的初步探討和嘗試。
  10. From the se algorithm, the relationship between the local minimum and the equalizer delay is demonstrated, and it is more accurate compared to the system delay relation formulation

    ?圍繞線性均衡器的時延極小值問題，從超指數演算法推導了線性均衡器相對于均衡器時延的極小值關系，修正了線性均衡器相對于系統時延的關系式。
  11. Such recognition algorithms the feature extraction based on a set of 2 - d gabor wavelet and computation of percentage mismatched bits hamming distance between a pair of iris representations developed by daugman, texture analysis methods developed by wildes and chinese academy of science, extraction of iris signatures by means of zero - crossing of the dyadic wavelet transform developed by boles and so on

    深入研究了多種典型識別演算法: daugman的基於2 - d復值gabor小波的虹膜相位編碼和hamming距離的方法; wildes和中科院的基於虹膜紋理分析的方法; boles的基於小波過零檢測的方法;上海交大的基於小波模極大值的方法等。並在此基礎上，對虹膜識別系統中的圖像預處理和識別的若干演算法進行了改進。
  12. This dissertation studies mainly theories and according numerical implementation of a class of dual algorithms for nonlinear optimization problems, including unconstrained minimax problems and constrained nonlinear programming problems

    本文主要研究非線性優化中的一類對偶演算法，包括無約束極大極小問題的對偶演算法和約束非線性規劃問題的一類對偶演算法的理論與相應的數值實現。
  13. According to the relationship between the local modulus maxima of wavelet coefficients and the local singularity, and the multiresolution analysis of wavelet transformation, the blocklines is flagged. then using the method of binary image processing and mathematical morphology to get the complete blocklines, and to construct the binary control mask. the control mask identifies valid and invalid discrete phase distribution, and remains the errors of phase unwrapping within the local confines successfully

    針對直接標記截斷線的困難，利用小波變換系數的模極大值與局部奇異性的關系，通過檢測多尺度小波變換系數模極大值的位置來標記截斷線的基本走向，進而採用二值數學形態學處理方法形成完整的截斷線，構成標記出極點與截斷線等易產生錯誤的區域的二元模板來，將位相展開的錯誤限制在局部范圍。
  14. The analytical solutions of the gain, dispersion and population difference in the steady state of an open ladder lasing without inversion ( lwi ) system are at first given when the phase fluctuation of the driving field is considered. then the effects of the driving field phase fluctuation on the gain, dispersion and population difference are analyzed by the numerical results from the analytical solutions. our research shows that the phase fluctuation of the driving field will results in a finite line width ; with the line width increasing, the gain decreases monotonously, however, variation of the dispersion isn ? t monotonous, it has a maximum value when the line width takes some value ; the line width varying can ? t lead to change lasing from without to with population inversion

    給出了有驅動場位相漲落的開放的梯型無粒子數反轉激光（ lwi ）系統增益、色散和布居數差的定態解析解，進而用得到的數值計算結果分析了驅動場位相漲落對增益、色散和布居數差的影響.研究結果表明，驅動場位相漲落將導致有限線寬;隨著線寬的增加，系統增益單調地減小，但系統色散的變化並不是單調的，當線寬取某個值時，色散有極大值;線寬的變化不能導致無反轉激光向反轉激光的轉變
  15. By driving expressions and using the method in numerical integration, the results of numerical calculations are analyzed, discussed and contrasted with different conditions, and they showed that there are evident differences in the mean attenuation, scattering, and back scattering cross sections of oblate spheroid particles when the variance is so small that it is near to zero namely it is the same as the rotatory axes are parallel with one direction and when h - polarized and v - polarized incident waves happened. these differences are depended on the relative differences in the average orientation of rotatory axes and the polarized directions of incident wave

    通過公式推導和數值積分計算並對結果做了討論和分析，對比各種情況表明：扁橢球粒子群在方差很小接近為0時，與粒子群旋轉軸一致取向的情況相同，入射波水平極化和垂直極化時的平均衰減截面、平均散射截面、平均後向散射截面有明顯的不同，這決定於旋轉軸平均取向和入射波極化方向的相對差異。
  16. Due to the specialties of fault signals in missile fault diagnosis, we proposed a novel de - noising method applying wavelet analysis scale space filter by using the properties of the signal and noise modulus maxima across scales. and modified it by using information on neighboring coefficients into the decision making. this de - noising method can reduce noise to a high degree while preserving most of the important features of the signal such as edges and other singularities

    研究了小波理論在信號去噪方面的理論和演算法，並針對故障信號的特殊性，提出了基於小波變換模極大值理論的尺度相關信號去噪方法，並提出了改進方法，將臨近系數的信息也作為決策的依據，從而得到了既能保護信號的奇異性特徵，又可以取得較好信噪比的新的信號去噪方法，並將其應用於實際系統，取得了很好的效果。
  17. For real world implementation of wavelet theory, the selection of suitable wavelet bases and related algorithms is mainly focused on. then the application in signal de - noising with wavelet transform is investigated. due to the specialties of fault signals in motor control system fault diagnosis, a novel de - noising method applying wavelet analysis scale space filter by using the properties of the signal and noise modulus maxima across scales is proposed

    研究了小波理論在信號去噪方面的理論和演算法，並針對電機控制系統故障信號的特殊性，提出了基於小波變換模極大值理論的尺度相關信號去噪方法，並提出了改進方法，從而得到了既能保護信號的奇異性特徵，又可以取得較好信噪比的信號去噪方法，並將其應用於實際系統，取得了很好的效果。
  18. ( 6 ) by the research of clustering capability of som, associated with fuzzy clustering analysis, we can realize the diagnosis of multiple faults of turbine generator - set. ( 7 ) by the analysis of the fuzzy - c partition and the genetic algorithm, a new method combing with them is put forward. this method can prevent the fuzzy - c partition from the local least point and can diagnose the steam turbine generator - set ' s multiple faults more effectively

    （ 7 ）通過模糊c -劃分極易陷入局部極小值和遺傳演算法有全局尋優特點的分析，提出了將兩者相結合的聚類分析新方法，不僅可克服模糊c -劃分陷入局部極小點的缺陷，而且能對汽輪發電機組的多故障進行有效的診斷。
  19. The calculated double differential cross section of the new model is compared with experimental data and previous scdw calculations with single particle model. the calculated cross sections are larger than those given by previous calculations at backword and forward angles and smaller than those given by previous calculations near the quasi - elastic scattering ( qes ) angle. the agreement with experimental data is much improved

    新模型的雙微分截面計算結果與實驗值以及以前採用單粒子殼層模型時的計算結果進行了比較，表明cdfm模型的引入對scdw模型的計算結果有較大的改進，使其在大角度和極小角度區域有所增大，在準彈性散射角附近有所減小，從而能更好地與實驗值相符合。
  20. When a smoothing function ' s first derivative is adopted as wavelet function, the local maxima of wavelet transform modulus detect the location of signal ' s singularities, in this thesis, these characters are not only applied to measure the magnitude of dead angles of the dissymmetry inrush but also the symmetry inrush in three - phase transformer

    當小波函數取光滑函數的一階導數時，信號小波變換的模在信號突變點將取得局部極大值。本文利用這些性質不僅對三相變壓器的非對稱性涌流間斷角的大小進行測量，同時還測量了對稱性涌流的間斷角，測量精度有一定的改善。
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