期望方差 的英文怎麼說

中文拼音 [qīwàngfāngchā]
期望方差 英文
expected variance
  • 期 : 期名詞[書面語]1. （一周年） a full year; anniversary 2. （一整月） a full month
  • 望 : Ⅰ動詞1 （向遠處看） look over; gaze into the distance; look far into the distance 2 （探望） visi...
  • 方 : Ⅰ名詞1 （方形; 方體） square 2 [數學] （乘方） involution; power 3 （方向） direction 4 （方面） ...
  • 差 : 差Ⅰ名詞1 （不相同; 不相合） difference; dissimilarity 2 （差錯） mistake 3 [數學] （差數） differ...
  • 期望 : 1. （抱有希望的想法） hope; expectation 2. （希望; 期待） hope; expect; wish
  • 方差 : dispersion
  1. And then, some common methods of gdm, such as the ahp method, the weighted geometric mean method ( wgmm ), the borda - kendall method, the minimum variance ( mv ) method, the clustering analytic method, the cook - seiford distance measure, cb measure, the maximum and the minimum expected values, the concordance and discordance indices, etc., are used to discuss some consensus problems of gdm, including the consistency of the complex judgment matrix in ahp, the consensus methods of the aggregation of individual preferences ; the aggregation of analytic hierarchy process methods based on similarities in decision makers " preferences, a consensus measure on multiple criteria group decision making

    接著本文採用了群體決策中常用的一些方法（如： ahp法，加權幾何平均法， borda - kendall方法，最小方差法，聚類分析法， cook - seiford距離測度法， c _ b測度法，最大最小期望值法，一致性非一致性指標法等）對群體決策中的幾個一致性問題進行了研究，這些問題包括： ahp中復合判斷矩陣的一致性，個體偏好序集結的一致化方法，基於決策者偏好相似性的層次分析模型的集結中的一致性問題和多準則群體決策的一致性測度。
  2. ( 3 ) usevpq. dll : common statistical distribution library provides methods of getting the expectation, variance ^ probability and quantile of 10 kind of statistical distribution

    Dll ：常用數理統計分佈的工具庫提供了計算十種常用統計分佈的期望、方差、函數值、分位點的方法。
  3. However, complicated theory and poor practicability of these methods make these methods ’ application foreground far from expectation of people. based on the network decomposition approach the fault diagnosis approach at subnetwork level decomposes the large scale circuit into several suhnetworks and then diagnoses the subnetworks respectively

    模擬電路故障診斷的研究經過四十多年的發展，已經形成一系列診斷理論和方法，但由於其本身理論的復雜以及目前診斷方法的實用性不強使得應用前景和人們的期望差距甚遠。
  4. This paper, taking university students as example, demonstrates how to make quantitative application in sociology by using covariance structure model, and what ' s the application foreground in the researches on sociology such as living quality, social functioning, social decision

    本文以大學生工作期望為例，說明協方差結構模型在社會學中如何應用，及其在社會問題如生活質量、社會運行、社會決策研究中的應用前景。
  5. Mathematical expectation and variance of random variable with fuzzy probability

    模糊概率隨機變量的數學期望和方差
  6. After gaining the stocks what we want, the expected return and variance are calculated, and the stock which we want to fit together are adjusted further more

    在得到所需的證券之後，計算其期望收益及方差，並進一步調整欲組合的證券。
  7. At first we compare some kinds of investment loss function, analyze their defects and take the eignvalue of covariance matrix as the measurement of investment risk, the principle component as the information of investment market, sn and cv of the principle component as balance relationship between the profit and risk. then different portfolio selection indexes are given, and new portfolio selection models are presented, which are different from h. markowitz model. at last an example is also given

    本文首先比較了幾種常用的投資損失函數，在分析它們的缺陷與不足的基礎上，提出了採用收益率的協方差矩陣的特徵根刻畫投資的風險；用主成份綜合反映證券市場的信息；分別採用主成份的差異系數與信噪比反映投資組合的期望收益率與風險之間的均衡關系，並以此作為投資組合損失最小化與收益極大化的指標；得到了不同於h
  8. Because fuzzy control is a sort of control method based on the differ < nce between process fact output and l i. f. l - expectant output. it h4s.

    由於模糊控制也是基於過程實際輸出及期望輸出間偏差的一種控制方法，它對處理帶有不確定性、甚至建模困難對象的控制問題有獨到的功效。
  9. A cascaded architecture is adopted, where desired propeller rate of revolution is generated by solving a static 2nd order equation with a parameter of desired thrust force, which is the input of the speed / position tracking control

    在推進器動態模型的基礎上，採用滑模控制的方法，由速度位置誤差獲得期望推力，再通過求解包括來流速度的二次方程得到期望螺旋槳轉速。
  10. To combine it with the virtue of valuable earthquake damage experience accumulated in china and stored in damage matrix, an inversion strategy is designed to search seven ratios of 4 spectral displacements of buildings to the median values of spectral displacements of 4 damage states by the criteria of the convergence of the values of the standard deviations of the natural logarithm of the spectral displacements of four damage states as the objective function, a hybrid procedure integrated the simplex with the generic algorithm is adopted and the program is updated for this purpose from an existing one

    為了說明本文方法的實用性，以xx市xxx區的多層砌體房屋為例，根據地震危險性、建築物易損性、建築物和室內財產損失率、人口死亡率，分別計算出房屋、室內財產的期望損失率和損失率的方差、人口的期望死亡率和死亡率的方差，得到純費率，設附加費率為純費率的一定比例，求得毛費率。
  11. First, a new methodological framework is developed for investigating the optimal strategies of maintenance scheduling for generating units with risk well taken into account, based on the widely employed power pool mode and the uniform clearing price. two scenarios are examined in detail, i. e., for the two cases that the generation company studied is / is not a price taker in the electricity market operation. based on the electricity market clearing prices estimated, a new methodological framework is presented, mathematical models formulated and a solving method developed

    以國內外廣為採用的聯營體模式、統一市場清算價結算的現貨電力市場為背景，在假設市場電價可以預測並能夠描述為某種概率分佈的前提下，採用方差或標準差來描述和度量風險；建立了相應的優化模型，為發電公司在制定發電機組的檢修計劃時適當兼顧利潤損失的期望值最小和風險最小這兩個目標提供了新的解決途徑。
  12. Consequently, in order to optimizing the saving behavior and harmonizing the economy development, it is essential that ( 1 ) to perfect the price system of farm produce in order to improve the level of income of rural residents ; ( 2 ) to safeguard the right of land and social security to reduce the uncertain anticipation ; and ( 3 ) to reconstruct china ' s agricultural credit system to release the restriction of fluidity. the main innovation points in this thesis are as the following. the analysis framework of saving behavior of rural residents has been put up

    因此，為了改善中國農村居民儲蓄行為，加強宏觀經濟調控，必須完善農村市場價格調節機制，保證農村居民收入的穩定增長；為農村居民提供相應的社會保障制度，降低其對未來收入特別是支出方面的預期尤為重要；加強農村公共物品市場體系建設，縮小城鄉以及地區間的收入差距；政府應當重點考慮規范正規金融市場與強化農村正規信貸市場，解決農村居民的流動性約束問題；幫助農村居民確立合理的消費期望，培養農村居民把握消費的自主意識及合理進行消費決策的能力。
  13. This paper has studied the mean attenuation, scattering, and back scattering cross sections of groups of small rotating spheroids about characteristics of microwave scattering when their rotatory axes are oriented at random in any direction in 2d plane and 3d space respectively under the condition of normal distribution, and that those physical quantities are changed with different variance, expectation and wave lengths of incident electromagnetic wave

    本文研究旋轉軸方向分別在平面內和空間中隨機取向呈正態分佈時的小旋轉橢球粒子群的平均衰減截面、平均散射截面、平均後向散射截面等微波散射特徵，以及這些物理量隨軸向分佈期望、方差及入射電磁波波長的變化。
  14. Only when die symbol of die coefficient of reaction is steady and die absolute numerical value or expected value of die coefficient of reaction is larger and its variance is smaller, it can be said that die income redistribution has enough capability of controlling consumption demand

    只有當反應系數的符號明確、反應系數或期望反應系數的絕對值較大、反應系數數值比較穩定即方差較小時，我們才能認為該收入再分配具備對消費需求的有效調控能力。
  15. This text make use of the system on the domestic and international risk of understanding which lead to audit practicing to study the present condition ' s foundation with are theories, deduces, and research methods, such as, attestations and analysis etc., factors of right audit risk down audit risk that theories of construction in the problem proceeds analysis research look for the theories fulcrum to lead to the audit theories and possibility towards risk lead to audit risk model that problem proceed analysis research. this paper brings up the fourth main factor project, and also is distinction of audit report risk with audit occupation risk, announcing to public audit risk actuality conversion, pointing study to operate the influence of the risk factor. to the model that risk of perfect audit risk of function, here the foundation study have the maneuverability to lead to the audit procedure and method problems with the period of the right fulfillment which have the leading meaning

    20世紀80年代中期，審計風險成為審計理論界和實務界研究的熱點和難點問題，為彌合審計期望差距，降低審計職業風險，在實踐中產生了一種以風險評價為中心的審計模式，即風險導向審計模式，該模式的出現對審計理論與實務影響都是深遠的，但目前還未形成統一的認識，尚有許多問題需要研究和解決，本文在了解國內外風險導向審計實踐和理論研究現狀的基礎上，利用系統，演繹，實證，分析等研究方法，對審計風險因素下審計理論結構的問題進行分析研究，以尋求風險導向審計的理論支點，以及對風險導向審計風險模型問題進行分析研究，提出四要素方案，也就是區分審計報告風險和審計職業風險，揭示審計風險現實轉化的可能性，重點探討經營風險因素的影響，對完善審計風險模型的作用，在此基礎探討具有可操作性的風險導向審計程序與方法問題，以期對實踐具有指導意義。
  16. The result shows that the method of lowest return rate for comprehensively predetermined projects can both restrain investors ' behavior of increasing funds viciously and make the predetermined lowest return rate close to the lowest return rate expected by companies

    驗證結果表明：綜合設定項目最低報酬率的方式既能有效地抑制惡性增資行為，又可以使設定的最低報酬率與公司期望的最低報酬率無顯著差異。
  17. Based on the additive weighting model and the expectation and square difference method for priorities, the calculating method for minimum changes of weight is obtained when the ranking position between two alternatives is reversed

    在區間數的「期望方差」排序法基礎上，基於加權模型，對區間數多屬性決策中權重靈敏度進行分析，並給出了當兩個方案之間排序位置顛倒時某一指標的權重最小變化量的計算方法。
  18. In capm mode, investors are presumed to be risk aversion people and faced with the market of risk asset. effect collection and deviation collection are produced by both subjective and objective conditions. at last, the premium portfolio and discount rate are drawn

    它假定投資者為武漢理工大學碩士學位論文風險厭惡者，面對風險資產市場，由投資者的主觀和市場的客觀條件綜合作用形成了其選擇的有效集和最小方差集，從而找到最佳投資組合和期望報酬率（作為貼現率使用） 。
  19. In this paper, we discussed the procedures of quantiles, maximum - likelihood, probability weighted moments, moments, least square, the best linear unbiased estimate, good linear unbiased estimation, and the best invariant estimate to the parameters of gumbel distribution, then give out the expectation and variance - covariance respectively. we compared the statistical behavior of these eight estimate procedures not only theoretically but also in the monte - carlo simulation

    本文利用分位數法、極大似然法、概率加權矩法、矩法、最小二乘法、最佳線性無偏估計法、簡單線性無偏估計法、最好線性同變估計法對gumbel分佈中的參數進行估計，分別給出了這八種估計量的期望、方差和協方差。
  20. Therefore, how to determine a proper trade - off line of materiality threshold to satisfy both the providers and users of accounting information is a critical subject in this research, because any failure will trigger the " expectation gap ", which may lead to a legal liability on providers of accounting information

    然而，這條劃分有限責任的重要性界線應當如何確定，才能同時滿足會計信息供需雙方的需要，是研究重要性判斷時的主要課題。因為劃分不當形成的「期望落差」 ，可能給會計信息提供者帶來法律責任。
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