正偏分佈 的英文怎麼說

中文拼音 [zhēngpiānfēnbù]
正偏分佈 英文
positive skewed distribution
  • 正 : 正名詞（正月） the first month of the lunar year; the first moon
  • 偏 : Ⅰ形容詞1 （不正; 歪斜） inclined to one side; slanting; leaning 2 （只側重一面） partial; prejudi...
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  1. An isolated point " s statistic excluding method is proposed in this paper to eliminate crassitude error in clouding data, which include plenty of oddity data. the method based on the distance between two neighbour points can eliminate the data beyond normal distribution. a error limitation of angle and chordal highness method is used to filtrate clouding point

    針對大量含奇異點的數據點雲，本文提出了剔除粗大誤差的孤立點統計排異法，該方法根據對相鄰點距離的統計，剔除在正態分佈以外的點；對大量數據的精減，利用角度和弦高的最大允許偏差法進行點雲精減。
  2. The dissertatio n constructs the index system, introduces the coefficients of development, coordination, fairness, and the coefficient of sd, which is composed by the former three and can reflects the sd overall strength of watershed, brings forward the quantative criteria of in order that the research of wrcc is based on the good watershed ecology and environment, the dissertation, according to the ecological appropriate theory, builds the logarithm normal distribution model about the relation between the growth of natural vegetation and the depth of groundwater ; based on this relation model, proposes a quantitative method of ecological water requirement ( ewr ) of natural vegetation in arid area, which utilizes the results of rs technique and the spot testing data of vegetative physiology demand

    針對流域特點建立了基於水資源的流域可持續發展評價指標體系，引入發展系數、協調系數、公平系數，以及由其構成的衡量水資源支撐社會可持續發展綜合水平與能力的可持續發展系數，提出了可持續發展的定量判別方法。為保證在良好生態的前提下進行水資源承載能力研究，論文根據生態適宜性理論，建立了乾旱區典型天然植物生長與主要環境因子的偏態單峰對數正態分佈模型。基於此關系模型，利用遙感技術成果以及植物生理需水的現場實驗數據，提出了乾旱區天然植被生態需水量計算方法。
  3. It has found that section dimension deviations yield with normal distribution ; axis line deviations yield with lognormal distribution

    通過調查分析認為；混凝土截面尺寸偏差服從正態分佈，軸線位移偏差服從對數正態分佈。
  4. Standard deviation in statistics, a measure of the dispersion of a frequency distribution : it is the average magnitude of deviations from the center of normal curve, calculated by squaring all the deviations, calculating their mean, then finding the square root of the mean

    標準偏差：統計中，一種衡量數據組分佈的分散或變化情況的數據，是偏離正態分佈中間位置數據大小的平均值。
  5. The distribution was skewed toward the lower energy values.

    這種正整分佈向較低的能量偏移。
  6. As regards sk ( bias angle ) and kg ( kurtosis ) values, the fluvio - lacustrine facies or palaeosols increases considerably compared with the aeolian sands. the former displays positive bias and the latter often approximately symmetrical distribution with only a minority negative bias

    就sk和kg變化而言，河湖相或古土壤值較之風成砂明顯增高，前者呈正偏，後者常常表現近對稱分佈，僅少數呈負偏。
  7. On base of results above, composite model of ssta in pacific and circulation anomaly are constructed for analysis their evolution. during mature phase of el nino usually in winter, positive ssta dominates in tropical eastern ocean and negative ssta dominates in west wind drift district in mid - latitude ocean, correspondingly the pna index of 500 hpa geopotential height is positive which means the aleutian low gets strong, and the situation is somewhat inversely during la nina phase of ssta

    合成位相反映了太平洋ssta演變特徵，以及相對應的大氣環流異常特徵：當西風漂流區處于暖態而熱帶中東太平洋海溫偏低時，合成大氣模型當中阿留申低壓減弱， 500hpapna指數為負異常；當西風漂流區處于冷態，熱帶中東太平洋處于暖態（ elnino峰值?成熟期ssta典型分佈） ，合成大氣模型中阿留申低壓加強， 500hpapna指數為正異常。
  8. ( 3 ) by using the method of svd and its second spatial distribution pattern, we can find that there is an evident positive relationship between the spring greenland sea - ice extent and summer rainfall of north china, that is to say, if the spring sea - ice extent of greenland is larger ( smaller ), then there is much more ( less ) summer rainfall in north china

    （ 3 ）採用奇異值分解方法，由第二對空間分佈型可以看出，春季格陵蘭海冰與華北夏季降水存在明顯的正相關關系，即春季格陵蘭海冰面積偏大（小） ，則後期華北夏季降水偏多（少） 。
  9. Numerical studies suggest that long scale and slow - changed oscillations in the zonal wind stress rebuild by pop anal ysis make the intention of el nino / la nina events deeply. it also enlarges their range. but, positive and negative anomaly center is toward west than actual conditions

    數值試驗的結果表明，由pop重建的緯向風應力中緩慢變化的大尺度振蕩成分加深了elnino lanina事件的強度，加大了它們的空間分佈范圍，但正負距平中心的位置比觀測風應力模擬的情況偏西。
  10. Because empirical distributions of rates of return on risky securities have characters of skewness and excess kurtosis, this article puts forward studying portfolio selection model conditional on non - normal stable distributions

    摘要針對風險證券收益率的經驗分佈所具有的偏態和過度峰態等非正態分佈特徵，提出在非正態穩定分佈條件下研究投資組合模型。
  11. As for material capital investment of farmer household, it ' s dynamics was declining, it ' s rate was stable and it ' s distribution was unequal. as for human capital investment of farmer household, normal education is the main method, the educational degree of household labors appeared partial distribution to normal distribution. compared with normal education, dynamics of investment in technique training and health was low, also the scale of labors mobility was narrow

    就農戶物質資本投資而言，投資力度有下降趨勢，但投資比重較為平穩，存量呈偏正態狀分佈；就農戶人力資本投資而言，以正規教育投資為主，家庭勞動者文化程度表現為由偏正態分佈向正態分佈轉移的趨勢，相對正規教育，農戶的職業技術培訓與健康投資力度較弱，勞動力流動半徑較小。
  12. Underlying the assumption that the stock price accords with the model of the stock price fluctuating sources, by comprehensivily applying the stochasitic differential theory and no - arbitriagc thcory, this paper, under the conditions that the risk - free rate r is constant or ito stochasitic process, successively works out the option pricing about the stock price model with that the short - term profit function is piecewise lecture function arid that one with that the short - term profit function is possion jump process, derivats counterpart partial differential equation of option pricing. the outcome states : 1. when the short - term profit function is unusual flunctuating sources bring out a piecewise lecture function, this amendment on the lognormal distribution model does not improve the option price, because this partial differential equation of option pricing is the same one underlying the lognormal distribution model ( see equation 2. 14 )

    本文基於股價符合波動源模型的假設，綜合運用隨機微分理論等數學原理和無套利理論等金融理論，依此對短期收益率函數為分段階梯函數和possion跳躍過程的股價波動源模型分別在無風險利率是常數和隨機過程的條件下作了期權定價，推導出了相應的期權定價偏微分方程，結果表明： 1 、由異常波動源帶來的短期收益率函數是分段階梯函數時，這種對股價對數正態分佈模型的修正不能改善期權價格，因為基於這種模型的期權定價偏微分方程與基於股價對數正態分佈模型的期權定價偏微分方程完全相同（見方程2 . 14 ） 。
  13. Then, this paper empirically tested the validation and predictive accuracy of different var risk management model in the domestic financial market. finally, with the analysis of modem financial risk management development trend and the current domestic financial risk management situation, this paper made a prospect for the application of this model in the construction of domestic financial risk management system. through the analysis, the main conclusions are as follows : ( l ) the traditional mean - variance model is the special example of the portfolio selection based on the var risk management model for the case that the returns of the portfolio are assumed to be normally distributed ; compared with the mean - variance model, the var risk management model is more comprehensive and accurate in the measurement of the portfolio risk, so based on the var model, the investors can allocate the asset more effectively. ( 2 ) the var risk management model can provide the timely and comprehensive risk information for the top risk manager, so it is very helpful to the improvement of total risk management efficiency. ( 3 ) based on the var model, the raroc performance valuation approach can reflect the real performance of the portfolio manager and provide the coherent standard for the allocation of risk limitation and the construction of the incentive compatibility constraint mechanism in the financial instiutions

    通過研究分析，本文主要得出如下結論： （ 1 ）傳統的markowitz均值? ?方差模型僅僅是在資產組合收益率正態分佈假設條件下基於var風險管理模型進行資產組合選擇的特例，與均值? ?方差模型中的方差風險度量方法相比， var風險管理模型能夠更全面、更貼切地衡量資產組合的風險，且基於此模型能夠更有效地進行資產配置決策； （ 2 ） var風險管理模型能夠滿足更高層次風險管理者對風險信息的需求，有助於整體風險管理效率的提高； （ 3 ）基於var風險管理模型的raroc績效評價能夠反映資產組合管理人的真實業績，從而為金融機構風險限額的分配和激勵約束機制的制定提供統一的標準； （ 4 ）國內證券市場資產組合收益率服從正態分佈的假設明顯不成立，實證檢驗表明基於資產組合收益率正態分佈假設條件下的方差? ?協方差模型對國內資產組合風險的預測存在較大的偏差，由於文中證明在收益率正態分佈假設條件下基於方差? ?協方差模型進行資產組合選擇的結果等價于markowitz的均值? ?方差模型，因此，均值? ?方差模型對國內資產組合風險的預測同樣會存在著較大的偏差，而半參數var風險管理模型則能夠取得較好的預測衡量效果； （ 5 ） var風險管理模型符合未來金融風險管理的發展趨勢，基於var風險管理模型建立內容提要風險限額內控體系、風險信息披露體系和業績評價體系，並進行金融監管，將有助於國內金融機構內部風險管理方法和外部監管技術跟上國際金融風險管理的發展潮流。
  14. In regards to techniques employed in active asset allocation, the author found that models applied in asset allocation can be divided into the optimal mean - variance model and risk averse asset allocation model, according to their different risk levels, and they can also be divided into linear asset allocation model and non - linear asset allocation model according to whether the asset return follows a normal distribution

    關于積極資產配置的技術，作者研究結論認為，積極資產配置模型按對風險的不同測度標準可區分為，均值方差最優化框架下的資產配置模型和下偏風險厭惡框架下的資產配置模型兩類；按是否假定資產收益服從正態分佈，可區分為線性資產配置模型和非線性資產配置模型。
  15. As hurst parameter estimated bias exists, the precision may be improved by using non - linear estimate, where arfima model is proposed and used for verification

    從統計結果來看，樣本序列呈現出尖峰、胖尾等有偏特徵，明顯不滿足正態分佈的假設，表明收益序列可能具有長程相關或記憶性。
  16. Based on this model, this method is then used to design some other special control schemes, such as skewness distributions, small batches, small shifts, and attribute control charts

    把這種方法擴展到一些特殊的控制圖的設計當中，本文除了討論測量值服從正態分佈的情形外，還分別分析了偏態分佈、小批量生產、小波動的探測和計數型控制圖等情形時最優控制方案的設計。
  17. Empirical analysis shows that changes in exchange rates do not follow normal distribution but fractal distribution ; fractal r / s analysis indicates that changes in exchange rates are not a random - walking process, but a biased random process, that exchange prices are not independent of each other, but continuous in state, and that changes in exchange prices are cyclical

    實證分析表明，外匯匯率變化不服從正態分佈，而是服從分形分佈；運用r / s方法對匯率變化進行分形分析后得出，外匯匯率變化不是一個隨機遊走的過程，而是一個有偏的隨機過程，匯率價格之間不是相互獨立的，而是具有狀態持續性的，匯率價格的變動具有周期性。
  18. The simulation result of a continuous stirred tank reactor ( cstr ) shows that the data would deviate from normal distribution under parametric uncertainty, and different parameters have distinct effect on data distribution at the same uncertain degree

    連續攪拌釜的模擬結果表明，在參數不確定的情況下，數據會偏離正態分佈，且在相同的不確定條件下，不同的參數對最終數據的分佈影響也不同。
  19. In the paper, the main results are brought forth in five aspects as follows : ( 1 ). the analysis of statistics the characteristic indicated that the variation coefficient of the soil nitrogen density of 0 ~ 30cm depth is lower, the variation coefficient is only 3. 6 %, the variation coefficient of the nitrogen density of 0 ~ 100cm depth is much bigger than that the 0 ~ 30cm depth, it is 100 %. based on the second national soil general survey material, the average soil profile depth is 101cm, this is in corresponding with skew normal distribution, its standard deviation is 0. 0192

    通過研究，得到以下認識與結果： （ 1 ）統計特徵分析表明， 0 30cm厚度土壤氮密度的變異系數較低，為3 . 6 ， 0 100cm厚度的氮密度的變異系數相對于來說就很大，為100 ；全國土壤剖面深度平均為101cm ，符合偏正態分佈，標準方差為0 . 0192 ； 0 30cm厚度土壤氮密度服從對數正態分佈，而0 100cm厚度土壤氮密度基本服從偏正態分佈。
  20. The achievements achieved in the study are presented as follows : ( l ) to the distribution of construction duration of the pert network, even though every activity duration obeys normal distribution, it is failed to be proved to be in the obedience with normal distribution strictly. however, if there - are a lot of activities in a path of the pert network, for instance, more than 20 activities, without reference to the normal distributions - distribution or triangle distribution which activities duration obeys, the construction duration approximately obeys the normal distribution when the form of distribution is not partiality seriously

    通過本文的研究取得的新成果有： （ 1 ）對pert網路施工工期的分佈，即使每一活動持續時間服從正態分佈，也不能證明其嚴格服從正態分佈，但當pert網路線路上的活動較多時，如超過20項，不論活動持續時間服從正態分佈、分佈，還是三角分佈，當偏態不十分明顯時，則工期近似服從正態分佈。
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