樣本變動 的英文怎麼說
中文拼音 [yàngběnbiàndòng]
樣本變動
英文
sample fluctuation-
The method proposed in this thesis do well in solving the problems of multi - damping - ratio - spectra simulation. it is convenient to obtain the pareto optimal solution set of the multi - object question by using implicit parallel genetic algorithms and the method can meet the practical needs for simulating ground motions coinciding with multi - damping - ratio - spectra in seismic design. the crossing rate and variance rate are important parameters of genetic algorithms which affect the rate of convergence, the adapting rate of cross and variation in this paper can auto - adapt and according to stand or fall of current sample, it assures the sample approach to the pareto optimal solution set in fast convergent speed
較好地解決多阻尼比反應譜擬合問題;本文方法通過一次運行就能獲得一組具有集系特性的地震動,在擬合多阻尼比反應譜的人造地震波集系的模擬方面有傳統方法所不能比擬的優勢,產生的人造波或人造波集系可滿足工程抗震設計需要;在遺傳演算法中,交叉概率和變異概率是影響收斂速度的重要參數,本文採用的改進自適應交叉概率和變異概率,可以根據當前樣本的好壞程度來自動地選擇適當的交叉概率和變異概率,以保證演算法始終以較好的速度向pareto最優解集逼近。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。Through indoor routine tests, the physical and mechanical natures of intact and remolding soil of muck and mucky soil, in fuzhou, are analyzed in this thesis. the results reveal that water content, void ratio, shear strength of remolding soil samples are lower than those of intact samples. then qualitative analysis on the mineral composition, chemical composition and microstructure characteristic and types of the soft clay is given
本文通過室內常規試驗對福州地區淤泥及淤泥質粘土的原狀土樣和擾動土樣的物理力學性質進行了分析,觀察土樣受擾動后一些物理力學指標的變化情況,發現擾動軟粘土樣的含水量、孔隙比、抗剪強度指標均比原狀土樣低;並從軟粘土的礦物成份、化學成份以及微觀結構特徵和類型上定性地分析。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。As for manipulation, the manipulator took on insider trading at the same time of manipulation. the stock tended to be manipulated with high concentration ratio of equity, few liquid equity and low turn - over ratio
以股本變動時期前後的日均換手率和日均收益率為樣本,本文以logistic模型建立了適合我國國情的內幕交易和市場操縱判別體系。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。But the result from cointegration show the structure of fresh water catch ca n ' t result hi the price fluctuation 5 ) we had build all of the empirical models above applied the theory of economics, prediction and econometrics by farmer price and retail price of aquatic products in 2000 sampled between 1978 and 1999
但是,單整檢驗結果表明,淡水捕撈結構的變動不對水產品收購價格產生沖擊。 5 )選取1978 ? 1999年水產品零售價格與收購價格作為樣本區間, 2000年作為測評區間,分別採用相應計量方法對上述模型進行了實證。The changes and pointed out that the gfdl would not be dfsg compliant if invariant sections or cover texts are claimed, just as before
了變動的地方而且指出,和以前的版本一樣,如果在前言附錄的特定章節或封面封底中有宣告,以gfdl授權的文件可以不遵循dfsg 。Hi the aspect of symmetry analyzing to the hopfield model neural network with hebbian learning, we study on the dynamical behavior of the state space under the action of isometric transformation group g = z2 ? n, and prove the invariant property of the energy orientation ? / / " ) of the state space under the action of g. we find that the symmetry relationship of the network is sx - sw = sh when the active function of the neuron is odd, where sx is the symmetry of the patterns set x under hebbian learning rule, sh is the symmetry of the network and sw is the symmetry of the weight matrix w of the network
) s _ n為手段,研究了網路狀態空間在群g作用下各點的運動情況,證明了群g作用下的不變性。證明了當神經元的激活函數f為奇函數時, hebb法則下存儲樣本集x的對稱性s _ x 、網路對稱性s _ h以及連接矩陣對稱性s _ w三者之間滿足s _ x = s _ w = s _ h的關系;同時,我們還證明了:網路穩定態集vf同一s _ h軌道中的兩個穩定態的動力學行為(能量和吸引域大小)相同;兩個等距網路h和h 1 = g ? h , ( ? ) g (These changes in the law are purely cosmetic and do nothing to deal with the real problem
法律條文上的這些變動純粹是擺擺樣子的,根本不能解決實際問題。In views of hebei province ' s existing situation of rural economy, and with reference to the civil and abroad achievements in scientific research on the field, this thesis choose two sample groups - 11 cities and 138 counties of hebei province in light of division into districts and analyses the rural economy difference of hebei by using total and mean index, the social product gross of rural, rural labor productivity, the mean net income of rural, and methods of variation coefficient, comprehensive index and so on.
針對河北省農村經濟發展的現狀,本文借鑒國內外區域經濟差異的有關研究成果,以現行行政區域為基礎,通過截取河北省11個地市和138個縣(市)兩組不同的樣本,選取總量指標農村社會總產值,人均指標農村人均社會總產值、農村勞動生產率、農民人均純收入,運用變異系數、綜合指數等方法對河北省農村經濟的差異進行分析。With the trend of openness and integration of globlal economy, exchange rate is playing more and more important role in influencing the allocation of global resources. the sensitivity of the price of tradale goods to exchange rate fluctuation becomes the focus of international economics because it is a critical vector and transmitter when an economy is confronted of exogenous impact. traditional international economics theory assume that nominal exchange rate fluctuation has complete pass - through effect, namely it ’ s change will introduce proportional change of tradable goods, then it will influence such macroeconomic vector as term of trade, import and export, inflation, employment, productivity, income allocation, and so on. from a microeconomic angle, including pricing to market, innovative behavior, menu cost and sunk cost, the paper probe into the pricing model of international enterprices under floating exchange rate and testify the incomplete pass - through of exchange rate and it ’ s detailed reason, then discuss the inspiration it has on china. it ’ s believable this kind of research will play a big part in china ’ s exchange rate scheme and some macroeconomic problems such as exchange rate tranmitting channel and effects, exchange rate fluctuating behavior
傳統的國際經濟學理論認為,名義匯率的波動具有完全的傳遞性( completepass - through ) ,即它的變化會引起同比例的進出口貿易品相對價格以及貿易品和非貿易品相對價格的變化,然後通過需求變動的支出轉移效應( expenditureswitching )來影響國內經濟的諸多宏觀變量,如貿易條件、進出口貿易額、通脹水平、就業量、勞動生產率以及收入分配等,本文從依市定價( pricingtomarket ) 、創新行為、菜單成本以及沉澱成本等四個不同的微觀角度,通過對浮動匯率下國際壟斷競爭性生產廠商的定價模型具體而透徹的探討,論證了匯率的不完全傳遞性並深入分析了決定匯率傳遞彈性的重要影響因素,闡述了該理論對人民幣匯率的啟示,這樣的研究會對我國今後的匯率政策以及匯率的傳導機制、傳導效應、波動行為等宏觀經濟問題起到重要的作用。We also prove the following properties : the stable states of the network in the same sh orbit have a same dynamical behavior, such as the size of attraction basin and the energy ; the relation of the symmetry of two isometric networks h and h ' = g - h is s ' h = g - sh - g ~ } for any isometry g, where sh and s ' h are the symmetry of h and h " respectively ; the isometry will not change the dynamical properties of the stable states set of the corresponding networks ; etc.
) g的對稱性s _ h和s _ n的關系為s _ h = g ? s _ h ? g ~ ( - 1 ) ;等距變換不會改變網路穩定態集的動力學性質等一系列的結論。所有這些研究結果表明了hebb學習法則是通過調整網路的連接矩陣,使得其的結構的對稱性包含存儲樣本集的對稱性這一存儲機理。This paper tests the effect of characteristics of boundary spanners on interpersonal trust between organizations and inter - organizational trust through a structural equation model using data from home appliance distributors in china
從施信方特徵、受信方特徵和雙方的互動特徵三個方面選取代表性變量,通過構建一個結構方程模型,以家電分銷渠道中的分銷商為樣本,檢驗了邊界管理人員特徵對企業間人際信任和企業間信任的影響。And then acceleration characteristic curve is concluded based acceleration track and point out its wave segment. combined with traffic accidents, the correlativity between accident and acceleration change is setup
然後,根據樣本路段的加速度軌跡圖,總結出彎坡銜接線形的加速度特徵曲線,指出加速度特徵曲線的波動段,來表徵路段的加速度變化幅度。The analysis of this paper has produces following results : first, although monetary transmission theories have great difference from each other, these differences lie in the adjustment scope of the assets that they investigate ; second, the methods by which money affects economy are various, so it has a strong influence, however, the change in the amount of money will not only cause the change of the total demand, it will also lead to a change in total supply by corresponding expectancy, thus in a long term we ca n ' t rely on the expansion of money to expand the production ; third, third, with the deepening of the reform, the above monetary transmission mechanisms will play a more and more important role in china ' s economy, and the influence of currency to the economy will be more and more strong, but since the correlating micro - mechanisms is mot integral, we should be highly cautious when this change takes its place
本文的分析得出了以下的結論:第一,盡管各種貨幣傳導理論有很大的不同,但是這些不同可以歸結為它們所考察的資產調整范圍的不同;第二,貨幣作用於經濟的途徑是多種多樣的,因此它的影響力是非常之大的,但是貨幣量的變動不僅會引起總需求的變動,而且會通過預期引起總供給的變動,因而在長期內不可能依靠貨幣的擴張來擴張產量;第三,隨著改革的深入,上述貨幣傳導機制在中國經濟中的作用日益加強,貨幣對經濟的影響力也越來越大,因此從長期看,貨幣政策由信貸控制轉向貨幣量控制是一個必然的選擇,但是由於相應的微觀機制尚未健全,這一轉變應高度謹慎。The differences in orbital morphologies due to different potentials is slighting, however, given a certain potential, for clusters that have perigalactic distance smaller than 1 kpc, some orbits may exhibit a chaotic behavior. the correlation between the metallicity of samples and the orbital morphologies is unclearly ; ( 4 ) it is found that the semi - major axis, apogalactic distance and azimuth period of 29 sample clusters are changed with their metallicity similarly, but a obvious correlation is seen between orbital eccentricity and metallicity. there is a fraction of 24 % of the sample clusters with eccentricities lower than 0. 4
不同的引力勢模型對球狀星團軌道的具體形態影響不大,在給定的引力勢模型下,當某些星團的運動軌道穿越距銀心1kpc附近的區域時會出現「混沌」現象: ( 4 ) 29個樣本星團的軌道半長軸、遠銀心距和方位周期隨金屬度的變化規律基本相似,樣本星團的金屬度與其軌道形態之間的相關性並不明顯,然而軌道偏心率與金屬度有關,對于所選的暈族樣本星團而言,大約有24的樣本星團的軌道偏心率低於0 . 4 。By means of trigonometrical progression method and the mainline track spectrum, the sample function of the chinese mainline railway track random geometric irregularity is simulated. with the data obtained from track geometry inspection car on qinhuangdao - shenyang special line for passenger transport and arma time series model, the sample function of high - speed railway track random geometric irregularity are simulated. based on existing literature, the artificial bogie crawl waves at various different speeds are randomly simulated
根據我國干線鐵路軌道譜,採用三角級數法模擬出干線鐵路和準高速鐵路軌道不平順的樣本函數;根據秦沈客運專線高速試驗段軌檢車資料,採用arma時間序列模型模擬了高速鐵路軌道不平順隨機樣本函數;在既有研究資料的基礎上模擬出各種速度客車構架人工蛇行波;用隨機變量描述道床橫向剛度,並進行了隨機模擬;將振動理論和穩定理論結合建立系統的分析模型和運動方程;根據monte ? carlo法編制了車輛?軌道耦合系統隨機振動分析程序,進行了無縫線路隨機動力響應分析,通過試驗對計算模型、計算方法進行了驗證。In designing a multi - structuring elements filter, combination rules and structuring elements of the morphological transform are determined automatically, and one kind of neural networks is taken for the filter, in optimzing structural parameters of the filter, three computation methods are designed respectively, by adopting some priori information in application fields to guide optimal structural parameter learning procedure, which are the bp adaptive learning algorithm, the heuristic genetic learning algorithm and the inductive simulated annealing learning algorithm
在多結構基元濾波器設計中,通過學習人-機交互選定的目標樣本,自動確定形態變換的組合規則及其結構元素,最終以神經網路形式構成濾波器。在結構參數的優化學習中,利用應用領域的先驗知識,分別設計了自適應bp學習、啟發式遺傳學習和引導式模擬退火學習等三種最優化計算方法。分享友人