expected variance 中文意思是什麼

expected variance 解釋
期望方差
  • expected : 期待,期望
  • variance : n. 1. 變化,變動,變更;變度,變量;【統計】(平)方(偏)差。2. (意見等的)相異;不和,沖突,爭論。3. 【法律】訴狀和供詞的不符。
  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. Some variance of temperature is to be expected.

    預料氣溫會有些變化。
  3. In light of market risk, there are sensitivity measurement method and volatility measurement method as well as the concepts about risk measurement, such as variance, duration, 3 - coefficient, 5 - coefficient and value at risk. and in light of credit risk, there are accounting - based ratio measurement method and volatility - based measurement method, as well as the related concepts, such as credit rating, z - score, transition matrix, expected default frequency

    其中,針對市場風險度量的方法包括靈敏度測量風險方法和波動性測量風險方法,與之相關的風險度量概念有方差、持續期、系數、類系數和在險價值;針對信用風險度量的方法包括基於財務比率的風險測量方法和基於波動性的風險測量方法,與之相關的風險度量概念有信用評級、 z分數、轉換矩陣、違約頻率。
  4. Their maximum and variance of beam pointing accuracy are much smaller than the results of round - off method. deficiently, only ordinary antennas are studied here, circular array and cylindrical array, for example. farther study about complex and anomalous conformal antennas is expected

    不過,本文中只對簡單形式的共形陣天線,如圓形陣、圓柱面陣天線進行了分析,復雜的不規則的共形陣天線的情況還有待于進行進一步的研究。
  5. This study was conducted to examine the interrelationship of 10 seed vigor traits in 12 wheat genotypes through variance, co - variance and path coefficient analysis, to determine broad - sense heritability, and to estimate genetic advance under selection. the genotypes showed significant difference for all traits, except for percentage of normal seedling. genetic correlation between conversion efficiency of seed reserve, electrical conductivity with other traits were not significant, showed that selection for any of them might be possible without hampering any other traits. however path coefficient analysis indicated that conversion efficiency of seed reserve, seed reserve utilization ratio have strong direct effect in affecting seedling weight, and that mean germination time has significantly negatively correlated in affecting gi. moderate to high estimates of broad - sense heritability, genetic coefficient of variation and expected genetic advance were obtained for electrical conductivity, germination index, mean germination time, seed dry weigh, seedling dry weigh, seed reserve depletion ratio indicating the possibility for improving these traits

    本研究利用12個普通小麥品種對10個種子活力性狀的遺傳變異和相關研究,表明除正常幼苗百分率外,其餘種子活力性狀在品種間均存在顯著的差異.種子貯藏物質轉換效率、電導率兩個性狀間及與其它性狀均無顯著的遺傳相關,因此對他們的選擇不會影響到其它性狀.通徑分析表明幼苗干重主要取決于種子貯藏物質轉換效率、種子貯藏物質利用速率;發芽指數主要由平均發芽時間決定.電導率、發芽勢、幼苗干重、種子干重、發芽指數、種子貯藏物質消耗比率6個性狀表現中到高的遺傳力、遺傳變異系數和相對遺傳進展,指明通過遺傳育種手段改良這些性狀是可能的
  6. Carry - over of losses / shortfalls : a variance account will be kept dealing the expected return vs the actual return in a calendar year

    損失/虧損的結轉:將保持一個差異帳戶,用以核算一個日歷年度內的預期收益與實際收益之間的差異。
  7. 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。
  8. 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。
  9. The result indicates that risk preference coefficient with short sales allowed reflects the investor ' s expected rate of return and the variance within the entire interval

    計算結果表明,風險偏好系數在整個取值范圍內都能夠較好地反映投資者對收益和風險的選擇態度,而且,含無風險資產的借貸拓展了投資機會空間。
  10. High variance reduction and processing time saving due to systematic descriptive sampling could be expected

    用系統描述性抽樣代替蒙特卡羅的隨即抽樣過程,從而使得計算效率與降低方差都得到了明顯地改善。
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