stochastic variable 中文意思是什麼

stochastic variable 解釋
隨機變量
  • stochastic : adj. 1. 機會的；有可能性的;隨便的。2. 【數學】隨機的。
  • variable : adj 1 易變的，變化無常的，無定的 （opp constant steady）。2 可變的，能變的；變換的。3 【數學】變...
  1. By contrast, the paper calculated the reliability index of the abutment after changing variable quotiety of the stochastic variable

    作為對比，本文還在改變各隨機變量變異系數的前提下，計算了壩肩巖體各高程的可靠指標。
  2. The waste load is regarded as a stochastic variable following the log - normal probability distribution based on statistical data, and the constrains on water quality levels are expressed in a probability form

    假設排污量是服從對數正態分佈的隨機變量，並且以潮周期內水質達標的概率作為衡量控制點達標的依據。
  3. According to the geometrical characteristic of the arch dam shape, and based on the parameter design language of ansys software ( apdl ), the subp method and the stochastic search method are adopted together to optimize design of hyperbolic arch dam with variable thicknesses of the circle

    摘要根據拱壩體形的幾何特徵，基於ansys軟體的參數化設計語言（ apdl ） ，將零階近似方法和隨機搜索法結合起來對單圓心變厚度雙曲拱壩進行了優化設計。
  4. A necessary and sufficient condition with ergodic of 1 - order probability distribution function of stochastic process ( theorem 1 and corollary 1 ) and extended the general distribution theorem of stochastic variable under the case of weakly condition ( theorem2 ) are presented

    摘要提出了隨機過程一階概率分佈函數具有遍歷性的一個充分必要條件（定理1和推論1 ） ，並在較弱條件下，對一般的關于隨機變量函數分佈定理作了進一步的推廣（定理2 ） 。
  5. According to the instance of the arch dam built, take the discount quotiety, the verification flood water level, the frictional quotiety and, the agglomerate force and as stochastic variable quotiety, calculate the reliability index of the abutment with the calculational programme after the average value and variable quotiety is known

    對于所取的拱壩實例，以揚壓力折減系數，校核洪水位，摩擦系數、 ，凝聚力、為隨機變量，在已知其均值並設定變異系數的前提下，利用電算程序計算其壩肩巖體的可靠指標。
  6. The influence of the selection of the shearing resistance and the seepage pressure on the reliability index is analyzed ; meanwhile, the influence of the distribution types, cut - tail and correlation of the stochastic variable on the reliability is discussed

    接著分析了抗剪強度參數的選擇及滲透壓力對可靠指標的影響，並討論了隨機變量的分佈類型、截尾情況以及相關關系對可靠指標的影響。
  7. The analysis and design class diagram are given. the sequence indication stochastic simulation algorithm based on indicator kriging is realized. the algorithm applies to discrete and continuous variable has no restrict to data distribution

    系統給出了沉積相隨機建模的分析類圖和設計類圖，實現了基於指示克里金估計的序貫指示隨機模擬演算法，該演算法對離散數據和連續數據都適用，不要求數據的分佈特徵，可以較好的模擬相特徵。
  8. Applying stochastic control principle and a dynamic inventory model of supply chain with multi - distributed center based on literature ( superscript [ 1 ] ), the bullwhip effect is restrained by taking the order as control variable

    本文採用隨機控制理論方法，針對在文[ 1 ]基礎上建立的具有多分銷中心的供應鏈動態庫存模型，以供應鏈系統中的訂貨作為控制變量抑制牛鞭效應。
  9. Define a random route, which pass through all the grid node, on the condition of given n conditional datum, get a value on the first grid node from the conditional distribution of stochastic variable, add the new value into the conditional datum as a new conditional data. on the condition of current n + 1 conditional datum, get a new value from conditional distribution of stochastic variable on the next node again. then continue until all the nodes gets own value

    定義一個經過所有網格節點的隨機路徑，在給定n個條件數據的情況下，在第一個網格節點處從隨機變量的條件分佈中抽取一個值，將這個新值加入到條件數據集中，在給定的n + 1個條件數據的情況下，在節點處從隨機變量的條件分佈中抽取一個值，重新進行，直到所有節點被模擬完為止。
  10. Dependent stochastic variable

    相依隨機變量
  11. This paper firstly applied sequential cluster method to set up the classification standard of precipitation state based on the fact that there are much uncertainty and imprecise characteristics in the precipitation course ; then this paper presented a method which is called markov chain with weights to predicted the future precipitation state by regarding the standardized self - coefficients as weights based on the special characteristics of precipitation being a dependent stochastic variable ; and applied this method to a real hydrological observation station with nearly 50 years precipitation information in shanxi province at last, an ideal result was obtained

    摘要首先基於降水過程存在大量不確定性、不精確性的特點，應用有序聚類的方法建立降水豐枯狀況的分級標準；然後針對降水量為相依隨機變量的特點，採取以規范化的各階自相關系數為權重，用加權的馬爾可夫鏈模型來預測未來降水的豐枯變化狀況；最後以山西省某水文站近50年的降水資料為實例對該方法進行了具體的應用，獲得了較為滿意的結果。
  12. If either of strength and stress is stochastic variable and another is fuzzy variable, the. fuzzy variable can be transformed to section number on the assumption that the probability of fuzzy variable taking some points in that section is proportional to its value of membership function respectively, then the probability of structural fuzzy event is transformed to general probability with stochastic strength and stress variables and can be solved by general probability theory

    當強度和應力之一為隨機變量，另一個為模糊變量時，提出將模糊變量通過模糊集合截集轉換為區間數，並假定模糊變量在此區間取值的可能性與相應的隸屬函數值成正比。採用上述處理后，結構模糊事件的概率即轉化為相應的普通事件概率，可按應力和強度為隨機變量，用常規可靠性理論進行求解。
  13. For the uncertain character of material function, the intensity of spray concrete and concrete lining is uncertain too. it can describe quality character better by probability model and statistic parameter of stochastic variable

    由於材料性能具有不確定性，噴混凝土和二次襯砌的強度亦同樣具有不確定性，一般用隨機變量的概率模型和統計參數來描述，能更好地描述其質量特徵。
  14. The " net cash flow from operating activities / net profit ", a cash flow indicator that is emphasized both at home and abroad, was first time to be treated as one of the variables for corporate performance. the listed companies of manufacturing industry were grouped according to their asset scale and industry property. the empirical study of equity structure and corporate performance were carried out through combining the empirical analysis and theoretical analysis and by using stochastic variable intercept paral data mode and sas software package

    本文以製造業303家上市公司為總樣本，確定了6個股權結構變量、 7個經營績效變量，並在經營績效變量中，首次引入了國內外尤為關注的現金流量指標? ?盈餘現金保障倍數；將製造業各次類上市公司，按資產規模和行業性質進行劃分，採用實證分析與規范分析相結合的方式，運用計量經濟學建模方法? ?隨機影響變截距平行數據法，應用sas統計軟體，對我國上市公司的股權結構與經營績效進行實證研究。
  15. Because of harsh and complicated operation environment, as well as transient and variable loads, vibration of piezoelectric laminated shell is a kind of sophisticated stochastic vibration process in fact

    由於工作環境復雜、惡劣，所受的載荷瞬態多變，壓電層合殼的振動是一個非常復雜的隨機振動問題。
  16. Firstly, the article introduces the theory of system simulation and the stochastic numeral and the stochastic variable

    本文首先介紹了系統模擬理論，以及產生隨機數從而生成需要的隨機變量的方法。
  17. The theory of reliability is based on the probability. it considers the variability of all stochastic variable and use taut probability to measure

    可靠度理論是建立在概率論基礎上，考慮了影響滑坡體穩定的各項隨機變量的變異性，並用嚴格的概率來度量。
  18. This paper is mainly concerned with the dynamic reliability of massive - head dam under earthquake. during the analyses, it considers the effect of variability 、 relevance and truncate of the stochastic variable

    本文主要研究在地震作用下大頭壩的動力可靠性，在計算中還考慮了隨機變量的變異，相關，截尾對其可靠度的影響。
  19. According to the problem that the recovery rate is traditional treated as a constant or an independent stochastic variable by the classical credit risk pricing and management model, and problem that the negative correlation between the default probability and recovery rate is always neglected, this dissertation gets the exponential and logarithm regression models of default probablilty and recovery rate based on some empirical researches, and improves on several broadly applied credit risk models, such as structural hazard rate model, affine structure model, convertible bond pricing model and credit metrics model, and introduce the negative correlation between

    針對傳統的信用風險定價模型及信用風險管理模型將違約回收率看成是一個外生的常數或是一個獨立的隨機變量，而忽略回收率和違約概率之間的負相關性這一問題，本文應用相關實證研究得到了違約概率和回收率的指數和對數回歸模型，並對應用非常廣泛的結構化風險率模型、仿射結構模型、可轉換債券定價模型和creditmetrics模型進行了改進和拓展，在新模型中應用指數和對數函數引入了這兩個變量之間的負相關性。
  20. Then combined with reliability computation, the stochastic finite element method is used to establish the relationship between the load effect ( stress or force ) and basic stochastic variable dealing with statistical features of variables

    再與可靠度理論相結合，考慮變量的隨機特性，通過隨機有限元法建立荷載效應（如應力、內力等）與基本隨機變量之間的關系。
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