樣本變量 的英文怎麼說
中文拼音 [yàngběnbiànliáng]
樣本變量
英文
sample variable- 樣 : Ⅰ名詞1. (形狀) appearance; shape 2. (樣品) sample; model; pattern Ⅱ量詞(表示事物的種類) kind; type
- 本 : i 名詞1 (草木的莖或根)stem or root of plants 2 (事物的根源)foundation; origin; basis 3 (本錢...
- 量 : 量動1. (度量) measure 2. (估量) estimate; size up
- 樣本 : sample book; specimen; advanced copy; sample; muster; scantling; instance; statistics
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Categorical data in its broadest sense is simply a collection of values of discrete variable obtained from a sample of individuals of objects.
范疇數據在廣義上就是一批得自於個體或對像樣本的離散變量值。Firstly, second harmonic component ratio and dead angles of two phase inrush ' s dispersion in three - phase transformes are acted as input variable. secondly, the method applies improved algorithm based on the original algorithm of multi - layer forward back propagation network, that is to say, adding last variational effect of weight value and bias value to this time and making use of variable learning rate. at the same time, this method also adopts dynamic form in the number of hidden floor node
首先,文中將三相變壓器兩相涌流差流的二次諧波含量比和間斷角作為網路的輸入變量;其次,利用對原有bp網路訓練演算法基礎上的改進型演算法(即在計算本次權值和閾值的變化時增加上一次權值和閾值變化的影響以及採用變學習率,與此同時隱含層神經元個數採用動態形式) ,通過樣本訓練使網路結構模型達到最優。Based on funds holding stocks sample and whole stocks sample, it uses cck adjusted model to test the existence of herd behavior of funds and that of the whole stock market. then, it inserts dummy variable dt in cck adjusted model to testify whether herd behavior of funds and that of the whole stock market are the same in scale to prove whether herd behavior of funds makes stock prices fluctuate in the whole stock market
本文主要採用實證研究的方法,首先運用cck校正模型,按基金持股樣本和股市整體樣本,分別檢驗基金羊群行為及股市整體羊群行為是否存在;其次,在cck校正模型的基礎上引入虛擬變量d _ t ,建立虛擬變量模型,以檢驗基金與股市整體羊群行為的顯著程度是否相同,從而證明基金羊群行為能否引起股市整體價格的波動。The process of feature extraction is to transform the eradiate noise signal to different feature space and extract the feature vectors that reflect the category of the input sample. the extracted features are the input modes to the classifier
特徵提取的過程是把輸入的船舶輻射噪聲信號變換到不同的特徵空間,提取出反映樣本的類別特性的特徵向量,並把其作為分類器的輸入模式。The risk of error can be reduced, he told internists attending a " multiple small feedings of the mind " hepatology update, by attention to specimen size and number of specimens
錯誤的危險度可以減低,他告訴參加一個肝臟新知識體目為「思考多重微小量變」的會議的內科醫生們將重點關注放在取樣樣本的大小和數目上。Each kind of palmprint pattern is described by parameters in wavelet domain that learned form samples by estimation
通過樣本學習,利用參數佑計的方法,每種掌紋模式的理想模型表示為小波域內的特定參變量。Besides, this paper adopts the random finite element method, uses geometric and physical mechanical parameters that are relevant to lining weight of surrounding rock, coefficient of lateral pressure, height or buried depth of vertical loading, elastic resistance coefficients of surrounding rock, elastic modulus of support structure, unit weight of concrete, thickness of the structure as well as torsional strength and compression strength of concrete and etc., as random variables, applies the monte - carlo method to sampling by computer, preliminarily evaluates the reliability of bearing capacity and stability of molded concrete lining of the xuefeng mountain tunnel, and obtains the related displacement of the lining, mean value and variance of internal force, and computed the reliability index of lining structures
此外,本文採用隨機有限元方法,將圍巖容重、側壓力系數、垂直荷載高度或埋深、圍巖的彈性抗力系數、支護結構的彈性模量、混凝土容重、結構的厚度以及混凝土的抗扭與抗壓強度等與襯砌結構有關的幾何與物理力學參數作為隨機變量,應用蒙特卡洛理論進行計算機隨機取樣,對雪峰山隧道模注混凝土襯砌的承載力與穩定性的可靠度進行了初步評估,得出了襯砌的相關位移與內力的均值和方差,並計算出了相應的襯砌結構可靠指標。Is it due to the decline of auditing quality, or providing nonstandard uncensored auditing opinion to change the auditor ? is the changing of auditor will influence the auditing quality ? if it is true, what is the potential explanation ? for the attention of above - mentioned problem, this thesis attempt to test some samples of auditor changing in chinese stock market, to find the underlying signification of the changing auditor event, and the effect on the auditing quality
出於對上述問題的關注,本文試圖對我國證券市場中的若干審計師變更樣本進行檢驗,以便發現審計師變更事件的潛在含義,以及其是否對審計質量產生影響。本文以盈餘管理為橋梁,通過2001 - 2004年度上海a股數據檢驗審計師變更與審計質量的相關性問題。最後得出的結論是審計師變更能在一定程度上會影響審計質量。Sequence and large sample quality are posed. in our country or allien there are many experts who discusses some quanlity of na variable in great. for example, in documentation 6, there is a discussion about the consistency of density kernel estimation and many results have been g ained, but the density estimation f ( x ) is limited to the arrange of x [ a, 6 ] which limits the arrange of application. thus in this passage we call off this limitation and further discuss the density kernel estimation under na sample. consequently the counterpart results have been gained and the condition of result has been weaked. in the same time we discuss the density kernel estimation under pa sample and the counterpart result has been gained
序列密度函數估計及其大樣本性質的研究課題。國內外許多專家對na變量的各種性質進行了大量的討論,其中文獻[ 6 ]曾對na樣本下密度核估計的相合性進行了討論,並取得了一些結果,但該文將密度估計f ( x )限制在x [ a , b ]中進行討論,這局限了應用范圍。因此本文在取消這種限制條件下對na樣本的密度核估計進行了進一步的討論,得出了相應的結果,並使結論的條件得到弱化;同時對pa樣本下的密度估計也進行了相應的討論,取得了相應的結果。Taking the reach with fluctuating backwater area in jiaokou hydroplant in xiujiang river, guanxi zhuang autonomous region for instance, this paper analyzes the water - sediment characteristics of the fluctuating backwater area, calculates the design level of this reach with samples of level and discharge, etc., and propounds the determination method for the designed lowest navigable level of reach with fluctuating backwater area
以廣西繡江交口電站的變動回水區河段為例,分析了變動回水區的水沙特性,分別利用水位、流量樣本及不同方法計算與分析本河段的設計水位,提出了變動回水區河段設計最低通航水位的確定方法。The dcs of i / a series is regarded as main reference object, and the control is separated from model. and the configuration of control is operatised at administration system, not to be added into model, not to build control sound code also. therefore it realizes on - line adjusting, real - time control and so on. users configurate by filling table. they only define i / o condition, fill certain operation variable, and name logic variable. the software offers a friendly user ' s interface, so personnel can compile and modify the control and logic program, change the value of logic and control variable conveniently, attach themselves to run, debug and control the system, not need to know the programs deeply. so the configuration software offer a flat that control engineers can attend to control loop, not to give their attention to the complicated program
在本課題中,採用填表的方式進行控制組態,用戶只需定義i / o條件、填寫具體的運算變量名即可。本軟體為建模人員提供了一個友好的用戶界面,使建模人員在建模時不必對模塊內部的控制、邏輯程序有很深的了解就可以方便的對其進行編寫和修改,實時改變各邏輯和控制變量在數據庫里的值,參與運行和調試,從而實現對系統的控制。因此,本組態軟體提供的這樣一個平臺,讓控制工程師能集中精力于控制迴路的構成,而不必拘泥於一些具體而煩瑣的程序操作。For the given sample points, and matrix formed by covariance function with sample points as parameters, when the number of sample points approaches infinite, it is proven that this matrix spectrum will approach the spectral approach theorem for positive - definite kernel of integral equation
對給定的樣本點,由樣本點為變量的協方差函數構成的矩陣,當樣本點個數趨于無窮大時,證明此矩陣譜逼近於積分方程正定核的譜逼近定理。At the part of empirical study, this paper chooses 124 a - stock listed companies from stock exchange of shanghai and shenzhen as research samples, makes use of the step method to filter the 13 possible variables ( including 3 debt - paying ability indexes, 3 operating ability indexes, 4 profitability indexes and 3 cash flow indexes ) in analysis and finally sets up discrimimant models by fisher discrimimant rules with the samples " financial data. then this paper validates the stability of these models using the self - validation and cross - validation before analyzing the prediction ability of these models with outside - validation
實證研究部分主要以我國深、滬兩市124家上市公司為研究樣本,採用上市公司1998年至2001年的實際財務數據,運用逐步判別分析方法對擬進入模型的13個變量(包括3個償債能力指標、 3個經營能力指標、 4個獲利能力指標及3個現金流量指標)進行篩選,並根據fisher判別準則建立判別模型,在運用自身驗證法與互動式驗證法對模型的穩定性加以驗證后,運用外部數據驗證法對模型的預測能力進行了分析。Will estimators become approximately normally distributed when sample size gets large
當樣本容量變大時是否估計量會漸近地趨向于正態分佈?Using simulation result as a substitute for data of test sampling, obtains the relation between sample size and sum of buildings, and it would be helpful to calculation of sample size
利用模擬結果代替試驗抽樣數據,得到了樣本容量與建築總量的變化關系,為樣本容量的計算提供了幫助。In course of training the network, the structure of the network has been analysed. using the nonlinear theory, the node of the hidden layer is ascertained. by comparing this method is very efficient
( 5 )在網路訓練過程中,對神經網路結構進行了分析,建立了計算輸出和理想輸出關系非線性方程組,依據非線性方程理論闡述設計變量、樣本數量和輸出層單元數量的關系,確定了隱層神經元的數量,經比較該方法很有效。The third part in this article has discussed the method which is based on the expectation frequency and use which we get the design value of 1 % and 0. 1 % for some universes. and we also get the correlation diagram of cs and calculation frequency of different sample sizes. then we analyze the variation rule to get the primary discussion for the theory study and production
本文第三篇討論了基於期望概率概念推求各種總體相應於1及0 . 1的設計值的方法,並且得到不同樣本容量的cs和計算頻率的相關圖,分析其變化規律,為理論研究及生產應用作一些初步探討。Adaptive importance sampling algorithm for fuzzy - random failure probability
考慮基本變量模糊與隨機性的廣義自適應重要抽樣法In this paper, i study above two issues and gain some results as follows : 1. under population follow normal distribution hypothesis, designing combine median - range adaptive control charts with variable sampling interval, variable sample size and variable control limit. it may be regarded as previously median - range extension
在假設總體服從正態分佈的條件下,設計了抽樣區間,樣本容量和控制限都變化的全變化參數的中位值-極差聯合控制圖。它是以前的中位值-極差聯合動態控制圖的推廣。Then in methodology, sample, measurements of variables and methods are defined in order to examine hypothesis above. pror example, several indicators are used to measure a variable, and stepwise regression, cluster analysis and correlation analysis compose empirical methods
然後,為了檢驗上述因素的影響,確定了實證研究的樣本、變量指標和研究方法:選擇變量指標時,採用多指標度量法,盡可能從不同角度全面反映變量;實證研究方法上主要有逐步回歸分析、聚類分析和相關系數分析。分享友人