empirical parameter 中文意思是什麼

empirical parameter 解釋
經驗參數
  • empirical : adj. 1. 以經驗為根據的,經驗主義的。2. 庸醫的。adv. -ly
  • parameter : n. 1. 【數學】參數,變數;參詞;參項。2. 【物理學】參量;(結晶體的)標軸。3. 〈廢語〉【天文學】通徑。vt. -ize 使參數化。
  1. This empirical single-parameter model was selected for interim use because it is simple and unambiguous.

    這一單一參數經驗模型,由於其簡單明了而選作臨時應用。
  2. Empirical likelihood ratio confidence regions with a nuisance parameter for dependent samples

    相依樣本下帶有討厭參數的經驗似然比置信區域
  3. In this thesis, based on item response theory, a number of ways to estimate the latent trait and item parameters were introduced and their advantages and disadvantages were analyzed ; what is more, empirical logistic regression and two parameters logistic model ( 2plm ) are combined to set up a linear model by logit - mapping and a new parameter - estimation method is proposed

    新方法將經驗logistic回歸用於兩參數logistic模型的參數估計,使用logit變換建立線性模型,利用線性模型的最小二乘估計得到第j個項目的項目參數向量_ j = ( _ j , _ j )的兩步估計由於x _ j含有未知的討厭參數,的理論值也和有關,我們結合上式的結果對進行再估計。
  4. On the basis of theory analysis, the average transmitted light intensity ( correspond to dc value ) was determined as characteristic parameter of raw water using photoelectric method for monitoring the fluctuation of transmitted light and photometric dispersion analyzer ( pda ). the dc value was closely related to both particle concentration and surface area of sand clay simultaneously. the experimental results shows that there is an exponential function relation between dc and surface area of sand clay in unit volume water ( sp ) : dc = asbp in which a and b are empirical coefficients. then the formula of macromolecule flocculant dosage is found to be d = f ( dc ) = e ( dc ) f in which e and / are empirical coefficients and the average correlation coefficient equal to 0. 981. so the model of automatical control system of water treatment plant was established using the formula

    應用透光率脈動檢測技術和光散射顆粒粒度分析儀( pda ) ,通過理論分析,將pda的輸出信號之一? ?平均透光強度(對應于dc值)作為原水的特性表徵參數, dc值可以同時反映顆粒濃度和比表面積因素的影響,試驗結果證明, dc值與單位體積水中泥沙顆粒總表面積s _ p之間具有很好的冪函數關系: dc = cs _ p ~ d ,式中c 、 d為經驗系數,進而得到了以dc值為參數的高分子絮凝劑投藥量公式: d = f ( dc ) = e ( dc ) ~ f ,式中: e 、 f為經驗系數,平均相關系數達0 . 981 ,利用所建立的公式,建立了前饋? ?后饋聯合控制的在線自動投藥模型。
  5. In the stochastic hill - climbing, the number of climbing is an important parameter, and is different to get a good value. this paper use experimental technique to settle this question. it use the least square method find a polynomial empirical formula, which can compute the number of climbing

    另外,針對savior演算法中隨機爬山法爬山次數難以確定的問題,本文採用多項式最小二乘擬合,利用實驗方法得到了問題規模和隨機爬山法合理爬山次數間的經驗公式。
  6. Taking ningxia - inner mongolia reach of yellow river as a study case, a ice regime forecast data warehouse is established for the datamining concerned on the basis of the analysis on the ice regime changing law and its influencing factor of the reach, and then the conceptual mathematic model and artificial neural network model for the parameter calibration of ice regime forecast are built up with gis in combination of the relevant empirical forecast models based on the principles of the hydrological flow muting, thermodynamics and ice hydraulics etc., with which the design and development of the decision support system for the ice regime forecast with the integrated functions of information inquiry, model parameter calibration, temperature forecast and ice regime forecast are preliminarily discussed

    摘要以黃河寧蒙河段為例,在對河段歷史冰情變化規律及其影響因素分析的基礎上,建立冰情預報數據庫,進行數據挖掘,並以地理信息系統( gis )為平臺,以水文學流量演算、熱力學、冰水力學等原理為基礎,結合相關經驗預報模型,建立用實測資料進行參數率定的冰情預報概念性數學模型和人工神經網路模型,初步探討了集信息查詢、模型參數率定、氣溫預報、冰情預報等功能為一體的冰情預報決策支持系統的設計與開發。
  7. Based on the statistics and analysis of the accumulated experiment data in designing the mixing proportion of middle and small - sized concrete projects in west region of guanzhong plain, 3 groups of related diagrams and 5 groups of empirical formulas have been established, as well as a parameter table suitable for this region to select the concrete mixing proportion and a table of the mortar mixing proportion have been compiled. the quality of raw meterials and the characters of concrete in this region are also analyzed in the paper

    對關中西部地區各類中、小型砼工程中,配合比設計所積累的實驗資料進行了統計分析,建立了3種關系曲線圖和5組經驗公式,編制出了適用於該地區選擇砼配合比的參數表和砂漿配合比表,並對該地區原材料的質量狀況和砼的性能特點,進行了必要的分析。
  8. Firstly, according to the observed data in - situ ( or the empirical parameter data ) and the acoustic logging data, the distribution law of the joint in the computing area can be got. then the network system of the joint can be simulated by the statistical distribution theory and the monte carlo ' s method. and then artificial or automatic dissection program can be used to dissect the fem mesh

    首先,根據現場實測資料(或相關經驗資料)和鉆孔聲波資料,求出計算區域的節理裂隙的分佈規律,由統計分佈理論結合蒙特卡洛方法可模擬出計算區域的節理裂隙網路系統,利用人工或自動生成剖分程序剖分成有限元網格。
  9. By deep analyzing the tested value of the concrete strength with the rebound method and combining with the inverse regression theory, a rebound strength curve ( empirical formula ) of three - parameter inverse regression is put forward

    摘要基於對回彈法檢測混凝土強度被檢測量,結合逆回歸理論提出了一種逆回歸三參數回彈法測強曲線模型(經驗公式) 。
  10. Empirical analysis of fiscal expenditure effectiveness with time - varying parameter model

    財政支出政策效應的時變參數分析
  11. In the second, in allusion to non - stationary the characteristic of the signal, the author introduces to the method that using empirical mode decomposition to analysis the vibration signal so that the signal are made up of some intrinsic mode function, after this process, we can use stochastic subspace identification to identification the mode parameter of the structure and find the same work frequency

    其次,針對氣閥振動信號的非平穩特點,本文採用了經驗模式分解法( empiricalmodedecomposition )對振動信號進行分析處理,使之成為若干個基本模式函數imf ( intrinsicmodefunction )和一個殘余量的線性組合。接著採用隨機子空間參數識別法對各個基本模式函數其進行結構參數識別,同時找出各種狀態的共同工作頻帶。
  12. First, there is no specific parameter for quantization ; second, the effects of transaction fee are ignored ; third, because these models are equilibrium models, they can ’ t reveal many of the prosperities observed in empirical markets, such as fat - tails, long - range correlations in volatility, etc. in the process of i study financial economics, when the teacher xu jia - gen to speak the price of the stock market to visit the distance examination and the artificial intelligence models, i think, if mathematics combines with the calculator. ( i studied mathematics four years in the southwest normal university ). the stock market price exercise regulation will easily confidence

    首先,沒有用具體的參數來量化股市的行為,其次,它們都忽略了交易費對股市的影響,第三,由於這些模型都是均衡模型,無法展示實際市場回報分佈的特點,諸如「肥尾」現象、集群波動等。在我學習金融經濟學的過程中,徐加根老師講到股票市場價格的遊程檢驗與人工智慧模型時,我想,如果數學與計算機的結合(在西南師范大學學習了四年數學) ,股票市場價格運動規律就容易把握了。
  13. In accordance with the damage data of gas pipelines collected in the chi - chi earthquake, the study assumes that the empirical fragility curves can be expressed in the form of two - parameter normal distribution functions

    文中配合集集地震時天然氣管線的災損資料,假設易損曲線為一個具兩參數的常態分佈函數。
  14. 4. in this part, we obtain the empirical bayes estimation for the parameter of the gamma distribution families y (, 1 / 2 ), and obtain convergent rate

    針對伽瑪分佈族( , 1 / 2 ) ,在加權平方損失函數下,得到了其參數的經驗bayes估計及其收斂速度。
  15. The empirical relation, the monkman - grant relationship and the larson - miller parameter can be used for creep rupture life prediction for the three - dimensional c / sic composite, the damage can be accumulated during the tensile creep tests at elevated temperature

    用應力經驗公式, monkman - grant關系和larson - miller參數這三種方法來估算3d - c sic復合材料的蠕變持久壽命。
  16. By means of a mass of shear strength test of rough cement face of concrete - bedrock, influences of cement face roughness of two mediums on shear strength parameter, shear deformation characteristics, shear failure mechanics are systemically studied. empirical relationship between fractal dimension of cement face roughness and shear strength parameters is established

    通過大量的混凝土?基巖粗糙膠結面抗剪強度試驗,系統研究了兩相介質膠結面粗糙度對其抗剪強度參數值大小、剪切變形特徵、以及剪切破壞機理的影響,建立了膠結面粗糙度分維數與抗剪強度參數之間的經驗關系式。
  17. This paper, based on collecting many empirical determinations of strength parameter for jointed rock masses all over the world, puts forward the improved empirical determination of strength parameters, that is to say, " size effect reduction factor " and " jointed rock reduction factor " of the intact rock specimen for the study on jointed rock mass strength parameter, and applies to the a typical location of the dam, which proves that this methodology is feasible and rational, and a new way for study of strength parameter in jointed rock masses is established

    在大量收集國內外節理巖體強度參數經驗確定方法的基礎之上,提出了改進的節理巖體強度參數經驗的確定方法,即對完整巖石進行「尺寸效應折減」與「節理化折減」的二次折減法,並應用於某壩址區工程實例中,所得的計算值與現場實測抗壓強度值接近,較以往的經驗確定方法更加準確,證明了節理巖體強度的降低是尺寸效應與節理化綜合作用的結果,為節理巖體強度參數的研究提供了一條新的思路。
  18. Dynamic compaction has been widely and successfully used to treat soft ground since its creation by l. menard in 1968 and some of its innovated techniques such as dynamic replacement have been developed. at the same time, theoretical and experimental researches have been done gradually. although there are comparatively some researches on it, the design of dynamic compaction is highly empirical and qualitative because of the complicated parameter of the soil itself

    Menard提出強夯法以來,在軟弱地基加固中得到了廣泛而成功的應用,並在工程實踐中逐漸發展了諸如強夯轉置換等新的應用形式;與此同時,其強夯的理論與實驗研究逐步開展,但由於主體土體參數的復雜性,強夯加固軟土地基的設計計算仍處于高度經驗和定性的水平,加固質量及加固效果的檢測也尚需深入探討。
  19. We find that fitness of returns on stocks to non - normal stable distributions in china stock market is very good by fitness test ; study measurements of return and risk of a portfolio conditional on non - normal stable distributions and put forward mean - scale parameter model ; find that mean - scale parameter model can explain asset allocation puzzle by empirical analysis

    通過擬合優度檢驗發現我國的股票收益率與非正態穩定分佈的擬合效果非常好;研究了非正態穩定分佈條件下投資組合收益和風險的度量,建立了均值尺度參數投資組合模型;通過實證分析發現均值尺度參數模型能夠解釋資產配置之謎。
  20. By now, many achievements have been acquired, including hundreds of empirical correlations to predict the chf value, and models for chf in different conditions, what ' s more, more basic research about two - phase flow, heat transfer, and behavior of gas bubble etc. whereas, all approach of predicting chf value or explaining the phenomena, has disadvantages of limited parameter range and accuracy

    包括各種參數條件下的經驗公式,對于不同機制下的理論研究以及更加基礎的兩相流動、兩相傳熱、汽泡動力學等多方面的研究。但是在所有目前已經取得的成果中,還是存在適用范圍的局限性以及精確性的問題,因此繼續對chf現象進行深入研究是很有必要的。
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