驗前概率 的英文怎麼說

中文拼音 [yànqiángàilǜ]
驗前概率 英文
pretest probability
  • 驗 : 動詞1. （察看; 查考） examine; check; test 2. （產生預期的效果） prove effective; produce the expected result
  • 前 : Ⅰ名詞1 （在正面的） front 2 （次序在先的） first; top 3 （過去的; 較早的） ago; before; preceding...
  • 概 : Ⅰ名詞1 （大略） general outline 2 （神氣） manner of carrying and conducting oneself; deportment ...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 概率 : [數學] probability; chance概率論 probability theory; theory of chances; 概率曲線 probability curv...
  1. With this aim, this paper has made a comprehensive study on the problem of the land requisition in our country. armed with such renowned theories as the theory of property right application, land rent, public choice etc., the study has rendered a potent analysis of the problems involved in the current land requisition policy and their reasons. then, based on china ’ s realities, it advances its own proposal to renovate the current policy from various aspects including the nature and limitation, the procedure and the standard of compensations of the land requisition, that is, by means of a combination of enumeration and generalization, decide on a strict definition of public interests ; improve the procedure of the requisition of land under the principle of openness, justice and high efficiency ; set up the compensation standard with the market price as the baton while versified by other supplementary ways ; most importantly, clarify the property right of land

    本文通過對土地徵用問題進行系統、深入的調查研究，針對當前我國土地徵用制度存在的主要缺陷和弊端，應用產權理論、地租理論、公共選擇理論、新制度經濟學中的路徑依賴理論以及其它相關理論分析土地徵用存在的問題及其原因，並結合國內外的先進經驗，立足本國實際，從征地性質與范圍的界定、征地程序的完善，以及征地補償標準的確定，提出了完善土地徵用制度的政策建議:採取列舉式和概括式相結合的方式，嚴格的界定「公共利益」范圍;樹立正當的程序觀念，按照公正、公開與效率的原則，完善征地程序;建立以市場價格為主的土地徵用補償標準，建立多樣化的征地補償方式等來解決我國征地中存在的問題，但最根本的是明晰土地產權從而進一步完善我國土地徵用制度。
  2. Second, carried out the fatigue life test of the truck ' s front axles adopted grouping fatigue life test method, calculated the results on theory of probability stats, linear fitted the fatigue life data by means of the basquin equation and least squares method, acquired the mathematical model of s - n and p - s - n curve of the front axles

    其次，採用成組試驗法，對汽車前橋進行了疲勞壽命試驗，藉助概率統計方法對試驗結果進行了分析計算，得到了各試驗載荷下的疲勞壽命的正態分佈的均值和標準差，採用basquin關系式和最小二乘法對疲勞壽命數據進行線性擬合，得到了前橋的s - n和p - s - n的關系。
  3. In this dissertation, we firstly prove that any dirichlet problem is indeed equal to a voltages problem of networks. we give five solutions to dirichlet problem in two dimensions ; among these five solutions, we prove that the iteration solution and the solution of relaxations are exponential convergence, then we estimate their respective convergence rates ; secondly, we discuss random walks on general networks, prove that there is an one to one correspondence between networks and reversible ergodic markov chains ; thirdly, we give probabilistic interpretation of voltages for general networks : when a unit voltage is applied between a and b, making va = 1 and vb = 0, the voltage vx at any point x represents the probability that a walker starting from x will return to a before reaching b ; furthermore, we study the relationship between effective resistance and escape probability : starting at a, the probability that the walk reaches b before returning to a is the ratio of the effective conductance and the total conductance

    本文證明了任何邊值的dirichlet問題都可轉化為求解電路電壓的問題：給出了計算平面格點上dirichlet問題的5種方法：證明了迭代法和松馳法都是指數收斂的，並分別給出收斂速度的估計；討論了一般電路上的隨機徘徊，驗證了電路與可逆的遍歷markov鏈是一一對應的；給出了電路電壓的概率解釋：當把1伏電壓加於a ， b兩端，使得v _ a = 1 ， v _ b = 0時，則x點的電壓v _ x表示對應的markov鏈中，從x出發，到達b之前到達a的概率；進一步地，給出了逃離概率與有效電阻之間的關系：從a出發，在到達b之前到達a的概率為有效傳導率與通過a的總傳導率之比。
  4. Based on this kind of relations between the topological structures and the content distributions we study the web modelling, community identification and some related application problems in detail : first, after some existed characteristics of the web topology are verified, some new characteristics are discovered : the high clustering property in micro - topology ( high average gathering coefficient ), the obvious mapping relation between the topological struture and the content in micro - level 、 linear irrelevant between the degree distribution of network nodes and the relative degree distribution of contents etc. then after analysis the topology of the complex network and the network modeling, the muti - scale determinism is proposed, especially for the information network a web evolvement model ( prcp model ) that fused the node authority and the node correlation is proposed. the model deduction, evolving learning verification and large scale experiment proof indicate that the model can explain the micro - topology centralizing phenomena, can imitate the mapping relation between the network connecting distribution and network content relative distribution and also can predict the mapping relation between the topology clustering and content clustering

    本文在詳細觀察了web網路的拓撲結構特徵以及拓撲結構與內容分佈相互關系的基礎上，以信息網路的物理連接拓撲結構與節點內容相關度分佈之間的相互關系為主線，從網路特徵、網路建模、社區分析及相關應用方面問題進行了深入細致地探討:首先在驗證了前人提出的web網路拓撲結構特徵基礎上，進一步發現了信息網路所具有的一些新特徵: 1 ）網路微觀顆粒度的拓撲結構聚團與內容聚團存在明顯的映射關系，具體包括節點之間的物理連邊概率與節點之間的內容相關度成指數比例關系、節點形成三角形拓撲結構的概率與節點內容相關緊密程度之間同樣具有一種指數比例關系; 2 ）網路節點連接度整體分佈與節點內容相關度整體分佈是線性無關的; 3 ）網路微觀拓撲結構中的存在很強的集聚性（平均聚團系數很高） 。
  5. These including : based on the reliability checkout of experiment data, the optimum fit of probability model by finite contrast method can be used to avoid type ii error and the estimation of distribution parameter with extended bayesian method to avoid the phenomenon that the results err from matrix owing to the lack of experiment data

    主要做了以下工作：在土工實驗數據進行可靠性檢驗的前提下，用優度檢驗的有限比較法擬合概率模型，可以避免納偽現象的發生：用經驗bayes方法估計分佈參數可以解決由於實驗數據不足而可能導致的估計結果背離母體的現象。
  6. The thesis mainly recounts the detail questions about bayesian small sample theory and the important applications of the theory in engineering, and gives sufficient analyses and discussion of every step of accomplishing a precision evaluation when using small samples. in the thesis, the following issues are contained, such as how to get and denote the prior information, the consistence test of prior information and test samples of shooting range, the fusion of multi - source information, calculating of posterior probability, estimation with bayesian approach, how to constitute test evaluation project of different performance and calculate the risks of both sides are contained, and at last a kind of applied method to calculate the effectiveness is given

    論文主要敘述了有關bayes小樣本理論的一些具體問題，以及該技術在工程中的一些關鍵應用，對小樣本條件下精度鑒定的各個環節給予較充分的分析和討論，其中包括驗前信息的獲取、表示，驗前信息和靶場試驗樣本的一致性檢驗，多源信息的融合，驗后概率的計算， bayes方法在估計中的應用，試驗鑒定方案的制定，對不同戰標的評估方法和風險的計算等，最後對作戰效能的計算給出了一種工程中較實用的方法。
  7. Pre - test probability

    驗前概率
  8. The algorithm of strapdown inertial navigation system is also discussed and then use the flight - track generator to give a simulation, since a closed loop feedback integrated navigation system is designed in this paper, and the output of the filter must feed back to the strapdown inertial navigation system, the analysis of the algorithm in strapdown inertial navigation system is important. the scheme to design the trajectory of gps and the simulation of gps constellation are then studied, the simulation of gps constellation is given from the calculation of vernal equinox base on the principle of celestial mechanics, this method of different from other methods given by other paper and is useful to the research of satellite navigation system. a new method to abstract noise modal in integrated navigation system is proved to be useful in practice, this method, which is given by use the principles of stochastic processes, statistics, time series analysis, and system identification, is suitable for the kalman filter in integrated navigation system

    如航跡產生器的設計，該航跡產生器是研究組合導航問題的前提，從國外一些研究組合導航系統的文獻中可以看出，設計這樣一個航跡產生器是非常必要的，所以本文自行設計了這樣一個系統；還討論了捷聯慣性導航系統中捷聯解算的方法，並進行了模擬研究，由於在本文設計的閉環反饋式組合導航系統中，對捷聯慣導系統的平臺誤差進行閉環控制，需要將濾波器輸出的校正量反饋到捷聯解算內部，所以必須對捷聯解算進行深入的研究和分析，更何況捷聯解算問題本身也是導航界的一個熱門研究課題；另外，本文還介紹了gps軌道及其星座模擬的設計思想和方案，與以往gps軌道和星座模擬不同的是本文從天體力學中計算春分點開始，逐步進行gps軌道及其星座模擬，這樣的設計方法對從事衛星導航的研究工作是有價值的；還對組合導航中誤差建模方法進行了研究，綜合運用隨機過程、概率統計、時序分析及系統辯識等方面的理論提出了一套適合組合導航卡爾曼濾波的誤差建模方法，並運用實際研究工作中的測量數據對該方法進行了驗證。
  9. The effective disturbance of laser to imagining track system is validated by two experiments. one is laser irradiates ccd detectors and the other is laser disturbs ccd imaging track evaluation system. the energy of laser disturbing ir imagining guided system effectively is estimated. the guidance error sources are analyzed and the hitting probabilities are calculated before the disturbance and after it by utilizing the formula about single missile shot percentage

    首先通過激光輻照面陣ccd探測器和激光干擾ccd成像跟蹤系統的兩個實驗，證明激光對成像跟蹤系統能形成有效干擾;然後對激光有效干擾紅外成像制導系統所需的能量進行估算;分析了制導誤差的來源，根據建立的導彈命中概率計算公式，具體計算激光干擾前後導彈命中概率。
  10. At the same time, the previous global estimate of failure probability can serve as additional prior information to yield the overall calibrated probability

    同時，先前估計的全局破壞概率，能夠用作額外的先驗信息，來給出全部校準的破壞概率。
  11. Methods : formulas of the expected pooled sample size and the power of tests were deduced while controlling the probability of type and type errors

    方法：在控制兩類錯誤概率的前提下，推導兩種方法的期望檢測次數和檢驗功效的數學表達式。
  12. In this dissertation, the research trends for the problem have been introduced ; the ‘ dim ’ and ‘ point ’ has been strictly defined in mathematics from machine vision and human vision ; the ideal clutter suppression system based on clutter predication and the realization and evaluation of evaluation index has been studied, in succession the clutter suppression technologies have been researched. firstly, the classic nonparametric algorithm has been analyzed in detail and systematically, for it ’ s weakness that it cannot remove the non - stationary clutter ideally, kalman filter algorithm for clutter suppression in 2d image signal has been built. secondly, fast adaptive kalman filter is presented based on fast wide - sense stationary areas partition algorithm : limited combination and division algorithm based on quarti - tree algorithm, new taxis filter route algorithm which can break through the limitation of the necessity of pixel neighborhood of 2d filter and laplace data model with two parameters which is perfectly suitable for the residual image of kalman clutter suppression

    首先分析了經典的非參數法，對於四種具有代表性的核，從前述的三個性能評價方面做了分析和對比，指出了其速度快的優點和對非平穩圖像適應性差的弱點，針對非參數法的弱點，重點研究了對非平穩圖像適應良好的卡爾曼雜波抑制技術:建立了非平穩圖像的類自回歸模型，在此基礎上建立了二維卡爾曼濾波基礎的兩個方程:狀態方程和測量方程;建立了非平穩圖像準平穩區域快速劃分演算法:基於四叉樹法的有限分裂合併演算法;二維空間的基於k排序的濾波路線演算法，突破了空域濾波路線上區域相鄰的限制;在這些研究的基礎上實現了快速卡爾曼估計，實驗驗證了該方法相對逐點卡爾曼估計可以提高運算速度三倍左右;雜波抑制結果表明傳統的高斯性檢驗並不適合卡爾曼估計后的殘余圖像，由此建立了殘余圖像的雙參數拉普拉斯模型，實驗表明其可以完好的吻合殘余圖像的概率密度曲線。
  13. This thesis reviewed the new effects of mmw and some representative opinions about the mechanism of mmw effects. the inducing effect of mmw on tongue cancer cell has been researched in this paper. according to the research result, this thesis gave a discussion on the problem of frequency and power of mmw

    本文在介紹了幾種典型的毫米波生物效應，並對其應用以及目前在毫米波生物效應機理研究方面的各種理論模型作了概括后，對毫米波作用人舌癌細胞產生的效應進行了較系統的研究，主要集中在細胞對毫米波吸收的頻率和強度的選擇性問題上，最後對實驗結果進行了分析討論。
  14. This method was assessed by analysis of syndromes in 165 cases, and the ratio of prospective misjudgement was 7. 3 %

    並對驗證樣本165例進行判別效果驗證，其前瞻性誤判概率為7 . 3 % 。
  15. ( 2 ) because of t he variability of rock subjected to outside action, three new conceptions : postive damage basic damage and negative damage, are suggested, which can deal with the condition that rock density became large. ( 3 ) the present damage variables based on ct number mostly include ct average number of the rock without damage, which is difficult to measure, so a new damage variable, which includes the average ct number is proposed, on the other hand, strain equal theory is generalized because the one put foreword by lemaitre is not good enough to use. ( 4 ) a axial damage constitutive equation is proposed and testified. ( 5 ) with the circle times, the damage propagation laws of two different rocks, subjected to circle of freezing and thawing, are studied, and in the analysis process, traditional analysis method including average ct number and is used, some important conclusions are reached : inner damage of soft rock containing a large mount of apertures is largely propagating with the time increasement of circle, however, at the preliminary time, the hard rock containing a small mount of aperture is a little propagating, at late time, the influence become large ; ( 6 ) zone separation and statistics frequency put forward is used to analysized the three different damage propagation in the open circumstance, when they are subjected to the different circle times of freezing and thawing, in which the temperature variability is linear, different freezing rate, and different freezing temperature, and no water is supplied during the test

    在研究過程中本文主要做了以下工作： （ 1 ）針對巖石損傷變化較小時，運用ct均值和方差分析不方便的缺陷，本文提出運用對ct數范圍劃分區段的方法，根據各區段統計頻率的變化規律來分析損傷擴展狀況； （ 2 ）針對巖石受到外部作用的多變性，本文提出了基準損傷，正損傷，負損傷的概念，在某種程度上考慮了巖石受到外部作用時的壓密情況； （ 3 ）現有的基於ct數的損傷變量大多需要用到巖石基體的ct均值，這實際上是很難觀測到的，因此本文建議了一個可運用巖石初始狀態ct均值的損傷變量，由於現有的勒邁特教授應變等價原理使用上的不便，本文在其基礎上進行了推廣； （ 4 ）建議了一個可用巖石初始狀態ct數和彈性模量的單軸損傷本構方程，並用算例進行了驗證； （ 5 ）對兩種不同巖石在開放環境下受到凍融循環作用且融化過程中補水時，內部損傷隨凍融循環次數增加的擴展規律進行了探討，主要運用了常規的ct均值和ct方差的分析方法進行分析，試驗發現：對于孔隙率和含水率較高，密度和強度較低的軟弱巖石，凍融循環次數對損傷結構的擴展有明顯的影響，而對于孔隙率和含水率較低，密度和強度較高的硬巖，凍融循環次數對其損傷結構擴展初期由於含水率低的原因，影響不是太大，而後期由於水補給后，含水率較高的原因，凍融影響逐漸增大； （ 6 ）運用了本文提出的區段劃分和統計頻率的方法，深入地分析了開放環境下的線性溫度變化的凍融循環次數，凍結溫度，凍結速度不同巖石作用時，其內部損傷隨凍融循環次數，凍結速度和凍結溫度變化的擴展規律，需要指出的是除了在試驗前飽水外，凍融過程中沒有補水。
  16. Based on predecessors " studies on steam turbine generator - set ' s state monitoring and fault diagnose, this paper focuses on the models and methods used to judge the multiple faults. these models and models, which are based on fuzzy sets theory, probability causal model, artificial neural network technology and genetic algorithms, are tested by some existing examples and some useful conclusions are drawn. all above will put the theory of multiple fault diagnosis of a large turbine generator set a further step

    本文在總結和借鑒前人關于汽輪發電機組狀態監測和故障診斷的基礎上，重點研究基於模糊集理論、概率因果模型、人工神經網路技術以及遺傳演算法的多故障診斷理論和方法，並用已有的汽輪發電機組振動故障事例進行了驗證，得出了一些具有實用價值的結論，進一步豐富和推進了大型汽輪發電機組振動多故障診斷的理論，並提出了一些可靠的、實用的新方法。
  17. Abstract according to the defect of the conventional bayes " method in the geomechanical engineering back analysis, expanding bayes " method was established in this paper. with the applications of the probability theory and the mathematical statistics principle, the geomechanical engineering random back analysis objects function was founded based on the aic criterion of the decision information theory and the maximum entropy criterion, a the matching question between the observed information and the previous information of the conventional bayes " method were proposed. in addition, the least square method, maximum likelihood method and conventional bayes " method were unified in form

    本文針對巖土工程反分析中使用的傳統貝葉斯法中存在的缺陷，提出了擴展貝葉斯法，從概率論和數理統計的原理出發，建立了基於決策信息論中aic準則和最大熵準則的巖土工程隨機反演的準則函數，解決了傳統貝葉斯法的觀測信息與先驗信息的匹配問題，並從形式上完成了目前常用的最小二乘法、最大似然法及傳統貝葉斯法準則函數的統一，並可由觀測數據的質量和數量進行預測模型的辨識。
  18. One is to learn behavior patterns and to detect anomaly behavior using art1 - - a neural network, and the other is to use markov chain and probability prediction to do the same job

    前者採用了art1神經網路模型，後者則應用了概率預報原理，兩種方法相互獨立。然後，分別用計算機模擬驗證了這兩種方法的可行性。
  19. Third, based on the parameterization of the related land surface characteristics, using the probability density functions ( pdf ) and the grossly dynamic resistance method, a statistical - dynamical parameterization scheme is put forward. the mean evapotranspiration flux of lower reaches of the yangtze river is calculated by tins scheme and the results are compared with the formers " conclusions. finally, the calculated results by the statistical - dynamical parameterization scheme are compared with the mosaic method

    第三，在進行了有關地表特徵物理量的參數化后，結合擬合的概率密度函數，根據總體動力掌阻抗法，提出了一種考慮網格區整體非均勻性的統計-動力參數化方案，並採用這種方案計算了長江三角洲地區的平均蒸發散通量，計算結果與以前研究者的研究成果進行了比較驗證。
  20. Based on the summary of previous evaluation methods, this paper points out the shortcomings of them, then draw the theory of artificial neural network into risk evaluation, through an example of some kind of investment project and the training and examination of a group investigation sample, it sets up the artificial neural network model. at last, this model is applied to the real case of an engineering project to evaluate its risk level and satisfactory result is made ; in the fifth chapter of this paper, the main risk factors that affect the economic appraisal of the engineering investment project are described through the form of relationship chart. then it is proved by way of deduction of formula that the risky influence that is brought by inflation must be considered in the engineering investment project

    本文在對以往評價方法進行歸納總結的基礎上，指出其中存在的不足之處，將人工神經網路理論引入到風險評價中，以某一類投資項目為例，通過對一組調查樣本的訓練和檢測，建立了工程投資項目風險評價的人工神經網路模型，並通過實例對模型進行了驗證，取得了滿意結果；在本文第五部分，對影響工程投資項目經濟評價的主要風險因素以關系圖的形式進行了描述，然後通過公式推導證明了在工程投資項目中應該考慮通貨膨脹帶來的風險影響，接著在分析以往建立的經濟評價凈現金流量表達式存在不足的基礎上提出了另外一種方式的表達式，即凈現值解析模型，對該模型的求解進行了詳細的說明，並分析了如何恰當的選擇各風險變量的概率分佈，最後在考慮投資者風險偏好的前提下，提出了工程投資項目新的風險度量模型。
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