variance 中文意思是什麼

音標 ['vɛəriəns]
variance 解釋
n. 名詞 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. Only the additive genetic variance is transmissible by seed.

    僅僅加性遺傳方差是由種子遺傳的。
  2. Systolic and diastolic blood pressures clustered together with leptin in the factor analysis and this blood pressure - adiposity component correlated with estimated creatinine clearance ( r = 0. 329, p < 0. 0001 ) and explained on its own 10. 2 % of the variance in the estimated renal function

    在析因分析中發現收縮壓和舒張壓與瘦素相關聯,這種血壓?肥胖組合與估算的肌酐清除率具有相關性(相關系數0 . 329 , p < 0 . 0001 ) ,其本身可以造成10 . 2 %的腎功能變化。
  3. Quadratic estimates of variance components and admissibility

    方差分量二次型估計及容許性
  4. The tracking scheme can track the variance of the mimo channel and further reduce system cost. finally, we introduce an mqam sm - ofdm adaptive power and bits allo - cation scheme

    以此為基礎的通道跟蹤方案能進一步減少系統開銷,而且能很好地跟蹤mimo通道的變化。
  5. This paper anglicizes the date by using chi - square test, analysis of variance ( anova ) and liner regression analysis ; brings forth different characteristics of psychological actions and

    最後,本文通過對現象得分析研究其背後產生的原因、掌握其規律,力求能夠為博物館的工作提供現實依據。
  6. And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed

    研究結果如下:首先針對荒漠化地區的地物特徵,對高光譜數據不同波段的數據質量、波段組合進行了評價,提出了適用於荒漠化監測的基本波段選擇集;初步了解和掌握了研究地區的地物光譜特性及變異規律,進一步明確了掌握地物光譜特徵和變異規律是用成像光譜儀數據提取地物信息的基礎;發現了基於光譜整體形狀的分類方法在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度變化引起的反射率曲線整體平移的「同物異譜」現象,對于譜形相似而整體反射率的值相差較大的兩類地物,通過引入均值和方差圖像參與分類得到解決;研究還表明在植被「紅邊」范圍內的波段是進行荒漠化監測的主要特徵波段,這些波段與植被生物量和蓋度都有密切的關系,是開展精細植被分類研究和植被定量反演的重要基礎;像元的導數光譜分析可以消除土壤背景的影響,是進行植被生物量和蓋度定量反演的有力工具;建立了荒漠化監測主要評價因子的定量反演模型,並分析了模型的適用性。
  7. The results show that : l ) there are three anomalous high temperature areas and three anomalous low temperature areas, and the whole area high temperature anomaly took place in the late 1980s, whereas the low temperature anomaly in the 1970 ; 2 ) the spatial mode manifests identical variations in the whole area, and the temporal coefficient curve is of 2 - 3 year period oscillation and an interdecadal abrupt in the late 1970s ; 3 ) the variance of interdecadal component is obviously larger than that of interannual in the most part of nespa ; 4 ) the interdecadal variation of the temperature is mainly linear ascendance in the late 1970s, the large range anomalous high ( low ) temperature occurs when the interdecadal and interannual anomaly are both positive ( negative ) in the year ; 5 ) the temperature anomaly is divided into four patterns : southern, northern, eastern and western patterns, in which the interdecadal variation of the southern and western patterns is relatively importance and the interannual variation of eastern and northern pattern is relatively importance

    本文用夏季( 6 - 8月)中國東北地區91個測站44年氣溫資料,對該區夏季氣溫的氣候平均和異常場進行分析,採用諧波分析將異常變化的年代際、年際尺度分量分離,分別分析兩種尺度上氣溫異常的時空特徵,最後應用reof進行了氣溫異常的區劃,研究局域異常變化的年代際、年際分量的變化特徵。結果發現: 1 )東北夏季有三個異常高溫高發區和三個異常低溫高發區。全區性異常高溫(低溫)階段出現在上世紀80年代后( 70年代) 。
  8. As part of her job, my mother bought stacks of housekeeping magazines ? house beautiful, house and garden, better homes and gardens ? and i read these with a curious avidity, partly because they were always lying around and in our house all idle moments were spent reading something, and partly because they depicted lives so absorbingly at variance with our own

    作為工作的一部分,母親會買下一疊疊的家政雜志? ? 《美麗住宅》 、 《家園》 、 《美好家園》 ? ?而我會帶著一顆好奇的熱切心來閱讀它們,部分是因為雜志總是擺滿了四處,並且在我們家裡所有的空閑時分都被花在了讀書上,還因為雜志如此有趣地描繪出了別人生活與我家的諸多不同。
  9. Bohr developed his theory using three concepts, all of which were at variance with the classical theories.

    玻爾在發展他的學說時用了三個概念,都是與經典理論相矛盾的。
  10. Bullwhip effect and inventory variance based de - apiobpcs policy

    策略的牛鞭效應和庫存方差
  11. Analysis of capital asset pricing model with persistence in variance

    存在方差持續性的資本資產定價模型分析
  12. Constant elasticity of variance, cev

    論證了當基礎資產遵循不變方差彈性
  13. Common factor variance

    公因子方差
  14. We will show that not any mean of the revenue rates of the industrial indexes is significantly beyond value zero at confident level 0. 90. moreover the mean of the revenue rate of sse 30 index is negative ( though not significant ). and the fact of " the heritage of variance " appears congruous to the feature of industries represented by the corresponding indexes

    第二章,通過分析上海股市各分類指數的收益率序列的特徵,得出結論如下:各序列都非正態,有自相關性和異方差存在,相對適宜用garch ( 1 , 1 )來擬合;除了上證商業( 1b0002 ) ,各分類指數收益率的均值在85的置信度下都不顯著地異於0 ,而上證30 ( 1b0007 )的收益率竟小於0 ;在各分類指數中, 」波動繼承性」的結果和各分類指數對應行業的特徵是相關的。
  15. It is shown that the error could be rather remarkable in some extreme situations and could be neglected in the others. the variance of parameters inside pixel, contexture of the pixel and the surface wind speed are the controlling factors of the scaling error

    結果表明亞像元狀態和結構是像元尺度誤差的主導因素,風速變化對尺度誤差有明顯的影響,不論何種形式的非均勻性,都須遵循相同的尺度擴展步驟,以達到消除誤差的目的。
  16. An optimized algorithm for mining association rules in hydrological time series is proposed on the foundation of the analysis of variance ( anova ), contingency table test and the new definition of interestingness

    摘要基於方差分析、列聯表檢驗以及興趣度的定義,提出一種挖掘水文時間序列關聯規則優化演算法。
  17. The additive genetic variance of the same character, estimated from the covariance of half sibs, was 0. 9602.

    從半同胞協方差估計出來的,同一性狀的加性遺傳方差為09602。
  18. The method proposed in this thesis do well in solving the problems of multi - damping - ratio - spectra simulation. it is convenient to obtain the pareto optimal solution set of the multi - object question by using implicit parallel genetic algorithms and the method can meet the practical needs for simulating ground motions coinciding with multi - damping - ratio - spectra in seismic design. the crossing rate and variance rate are important parameters of genetic algorithms which affect the rate of convergence, the adapting rate of cross and variation in this paper can auto - adapt and according to stand or fall of current sample, it assures the sample approach to the pareto optimal solution set in fast convergent speed

    較好地解決多阻尼比反應譜擬合問題;本文方法通過一次運行就能獲得一組具有集系特性的地震動,在擬合多阻尼比反應譜的人造地震波集系的模擬方面有傳統方法所不能比擬的優勢,產生的人造波或人造波集系可滿足工程抗震設計需要;在遺傳演算法中,交叉概率和變異概率是影響收斂速度的重要參數,本文採用的改進自適應交叉概率和變異概率,可以根據當前樣本的好壞程度來自動地選擇適當的交叉概率和變異概率,以保證演算法始終以較好的速度向pareto最優解集逼近。
  19. The positive square root of the variance is called the standard deviation.

    方差的正的平方根叫做標準差。
  20. 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。
分享友人