正則分佈 的英文怎麼說
中文拼音 [zhēngzéfēnbù]
正則分佈
英文
canonical distribution-
Audiogram types included sloping type ( 18 ears ), normal hearing ( 14 ears ), flat type ( 4 ears ), and others ( 2 ears )
在聽力圖型的分佈, 14耳正常、 18耳呈高音漸傾型、 4耳呈水平型,其他型則有2耳。Firstly, by numerical and theoretical analysis, the author compares some existent confidence intervals, for example, " exact " confidence interval, wald confidence interval and bayesian confidence interval, and finds some deficiencies points of the confidence intervals, whose modification version has been proposed. also, several better confidence intervals such as are also presented. secondly, for given confidence coefficient and interval width, the author constructs a class of asymptotical two - stage interval estimate procedures. at the same time, under varies restriction of confidence coefflcientent interval width, the optional sample size of the first stage has been computed by numerical computation. the numerical computation shows that the method considered in this dissertation have good properties and applied value
同時,由於poisson分佈的特性,我們知道不存在其參數區間長度小於0 . 5的置信區間,基於這些情況,我們主要展開了以下兩個方面的研究:一是利用數值計算分析與理論分析的方法對現有的若干置信區間如「精確」置信區間, wald置信區間, bayes置信區間等進行分析比較,發現了一些缺陷,針對這些缺陷,我們進行適當的修正,並得到幾種性質較好的置信區間如:修正大樣本區間jeffreys原則下置信區間二是針對已給定的置信系數與區間長度,我們提出了一種漸近的兩階段區間估計程序,並利用數值計算的方法,在各種置信系數與區間長度限定下,算出了最優的第一階段觀測次數(抽樣量) ,大量數據表明,本文考慮的方法性態良好,具有應用價值。The principles of erasure codes used under binary erasure channels are summarized and erasure codes which belong to standard classes of rs codes are introduced with emphasis on cascaded low - density erasure codes with linear time encoding and erasure recover algorithms. thresholds of regular degree distributions are analyzed. it is shown that low - density erasure codes based on ( d, 2d ) - regular sequences of degree distribution are not close to optimal ( d 3 ). two pares of irregular degree distribution sequences are introduced and a pare of improved right regular sequences of low - density erasure codes are presented, it is testified that the new sequences are asymptotically quasi - optimal. in the meantime, simulations of cascaded low - density erasure codes based on a few types of special sequences of degree distribution available are given, together with performance analyses on these codes
闡述了應用於刪除通道下的糾刪碼基本原理,介紹了兩類標準的rs碼類糾刪碼,重點分析了具有線性時間編碼和恢復演算法的漸近好碼?級聯型低密度糾刪碼,分析了正則度分佈的閾值,對正則低密度校驗碼在刪除通道下的糾錯性能進行了模擬,從理論上證明了基於( d , 2d ) -正則度序列的低密度糾刪碼都不是漸近最優碼( d 3 ) ,同時還分析了非正則低密度校驗碼的度序列設計,基於右邊正則序列提出了一種改進型右邊正則序列,證明了此序列為漸近擬最優的,對基於幾類現有典型度分佈序列的級聯型低密度糾刪碼進行了模擬模擬及性能分析; 3We a1so point out that under certain regular conditions the posterior distribution is free from prior and is approkimately normal as the volume of samples increases infinitely in this essay we discuss these regular conditions using a method similar to that of w8lker ( l967 [ 2l ] ) and heyde and johnstone ( l979tl4 ] ), but the conditions have been simplified
、 _ 2是兩個在_ 0正值連續先驗分佈,如果在相容,則幾乎必然定理1 . l如果_ n和v _ n均為的后驗分佈且是相容的,則對于任意的有界連續!函數,有卜(川松) 。After alteration the structure became laconic, both training rate and correct recognition ratio were heightened. it became easier to extract rules from trained network basing on the characters of structure and knowledge distribution in the network
改進后網路在結構上比較簡潔,訓練速度和正確識別率都有了明顯的提高,並且根據網路結構和知識分佈的特點更容易實現規則抽取。This method is best used for normal distribution curves, but does not work well if the distribution includes a large number of values that occur in a narrow group in the continuous data
此方法最適用於正常分佈曲線,但如果分佈包含的值數量很大,並且這些值在連續數據的窄組中,則此方法的使用效果不是很好。Exsiting calibration methods are classified as ( 1 ) methods using point targets and distributed targets ; ( 2 ) methods using only distributed targets and ( 3 ) methods using only point targets. then the typical algorithms of every methods are given in which those of method ( 1 ) and ( 2 ) are modified based on a quantity of literatures
然後在眾多演算法中挑選了三種技術的典型演算法,在綜合多篇文獻的基礎上,給出修正的混合點目標和分佈目標的定標演算法:對所選的分佈目標演算法本人進行了修正,並給出了這個修雁的演算法;點目標演算法則按照原文獻給出。To this end, some mild regularity conditions are imposed and an asymptotic distribution theory is established for modified statistic
在適當的正則條件下,對修正的經驗似然比統計量給出了漸近分佈理論。At that time, cytosolic fluorescence intensity decreased to normal level, which shows that most of cells get through the gl / s point and enter the log phase. when cultured in medium that neucl was omitted, most of the cells were synchronized at gl stage of cell cycle. with flow cytometry, we found that cytosolic cam content of gl cells was higher than that of normal cells at log stage
在激光掃描共聚焦顯微鏡下觀察不同周期時相裂殖酵母細胞中cam的濃度及分佈變化,結果表明,分裂期細胞總體熒光強度強于間期細胞;而對同一細胞內熒光強度的分析說明,間期細胞的熒光主要分佈於胞質中,細胞核內則分佈較少;而正在進行有絲分裂的細胞內熒光主要集中於赤道板處;剛完成有絲分裂的細胞內熒光則相對集中於兩端或其中的一端。And reached the following specific conclusions : rubber content with the increase of resistance to ageing rubber modified asphalt increased ageing after less than for low - temperature service, the quality of reduced losses, soften point increase needle into a normal degree. summed up the aging asphalt and modified asphalt laws made spent rubber for asphalt modified agents, the principles of the size options and dosage of rubber powder for spent rubber modified asphalt road asphalt in the application provided a good technical support
得出了隨膠粉含量的增加膠粉改性瀝青的抗老化性能提高,老化后低溫延度比減小、質量損失量減小、軟化點提高,針入度呈正態分佈及改性瀝青老化的規律,提出了廢膠粉用作瀝青改性劑時粒徑選擇和摻量確定的原則,為廢膠粉改性瀝青在公路瀝青路面中的應用提供了良好的技術支持。We can measure with even more precision the percentage of items that fall within specific ranges under a symmetrical, bell-shaped curve like the one in figure 4-3.
對于圖4-3那樣的對稱正態分佈曲線,則能更精確地算出落在某個特定范圍內的單位數所佔百分比。Based on survey data from some researches, dead load model and vehicle load model are presented in this paper. it is quite evidence that dead load model is gaussian distribution, and vehicle load is non - gaussian distribution, which operates general traffic and rush hour traffic states
本文在國內外各種調查資料的基礎上,分別引入恆荷載模型及車輛荷載模型,其中恆荷載呈正態分佈:車輛荷載則為非正態分佈,並將其分為一般運行狀態及密集運行狀態兩種情況,分別建立服役期最大值分佈函數。The second part mainly reviewed the study history, actualities and existinbg problem. this is helpful for the model building, variables selecting and parameter estimating, hi the third part, the arrival process and serve process are studied based on the survey data, especially the delay process is mainly analyzed including the dispersion vehicle headway time distribution
第三部分則根據實測數據,對交叉口車輛的到達過程和服務過程作了詳細的分析,特別分析了車輛的受阻過程,並用對數正態分佈擬合排隊車頭時距的分佈,為模型的建立和車輛延誤過程的模擬奠定了基礎。These rules consist of the total fit, the mathematics and fatigue physics, and the safety in tail predictions. an analysis of the test s - n data of 16mn steel weld joints reveals that the four models are reasonable if only considering the total fit as the conventional method did. but if by the present three rules, the appropriate models should be the normal or the extreme maximum value
根據先前提出的有限數據下良好假設分佈的確定方法,包括三個原則,即假設分佈形狀與誤差數據真實分佈形狀的一致性、預測的總體擬合效果、與疲勞失效機制的一致性和尾部預測的安全性,通過對線性均值s - n曲線擬合16mn鋼焊接頭s - n數據誤差的統計分析,說明應用一般推斷方法, 4種分佈都可合理地作為數據的統計模型,綜合考慮三原則后,極大值和正態分佈是可能的良好假設分佈。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。Generally, the calculation of semi - variogram calls for data to conform to normal distribution, or it will cause proportion effects
變異函數的計算一般要求數據符合正態分佈,否則可能會使變異函數產生比例效應。3. the effect of measurement error is considered as gauss white noise. through theoretical analysis and numerical simulation, damage assessment results are also subject to gauss distribution. furthermore, results indicate that the mean keeps intact, but the standard deviation is linear to error level
3 、將測量誤差的影響考慮為正態分佈的高斯白噪聲,通過理論分析和數值模擬,說明用靈敏度分析法識別結構損傷時,損傷識別結果也服從高斯正態分佈,其平均值保持不變,而方差則與誤差水平成線性關系。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。In continuous - lime framework, assuming that asset price follows stochastic diffusion process, it introduces parametric uncertainty, and applies stochastic dynamic programming to derive the closed - form solution of optimal portfolio choice, which maximizes the expected power utility of investor ' s terminal wealth ; in discrete - time framework, continuous compounding monthly returns of risky asset are assumed to be normal i. 1. d., it applies the rule of bayesian learning to do empirical study about two different sample of shanghai exchange composite index
在連續時間下假設資產的價格服從隨機擴散過程,引入參數不確定性,利用隨機動態規劃方法推導出風險資產最優配置的封閉解,使投資者的終期財富期望冪效用最大;在離散時間下假設風險資產的連續復合月收益率服從獨立同分佈的正態分佈,通過貝葉斯學習準則,以上證綜合指數不同區間段的兩個樣本做實證研究。We can measure with even more precision the percentage of items that fall within specific ranges under a symmetrical, bell - shaped curve like the one in figure 4 - 3
對于圖4 - 3那樣的對稱正態分佈曲線,則能更精確地算出落在某個特定范圍內的單位數所佔百分比。分享友人