漸近性近似 的英文怎麼說
中文拼音 [jiānjìnxìngjìnsì]
漸近性近似
英文
asymptotic approximation-
By introducing proper stretchy variable and constructing boundary layer function, it concludes n - order approximate solution, and using theory of differential inequality, uniformly validity of asymptotic expansion is proved
通過引進適當的伸長變量，構造邊界層函數，得到了解的n階近似值，並利用微分不等式理論證明了解的漸近展開式的一致有效性。Abstract : in this paper, empirical euclidean likelihood ratio statistics are constructed for parametric components in a partly linear model, and its theory asymptotic confidence regions are constructed for parametric components in a partly linear model
文摘:構造了部分線性模型參數的經驗歐氏似然比統計量，並討論了它的極限分佈，由此可構造部分線性模型參數的漸近置信域Recently, when a. dmitrienko ( 2000 ) [ 5 ] constructed the sequential confidence regions for maximum likelihood estimates, they put forward a new asymptotic property : bounded cost of ignorance, that is lim ( en ( d ) - n ( d ) ) <. it ' s an asymptotic property which is worthy of consideration
最近， a . dmitrienko （ 2000 ）在構造極大似然估計的序貫置信區域時，提出了一個新的漸近性質：未知代價的有界性（ boundedcostofignorance ） ，即這是一個很值得考慮的漸近性質。It is proposed that a new estimator of the extreme - value index when it is negative that is similar in form to the pickands estimator. its consistency and asymptotic distribution is established
提出一類極值指數為負時的相似於pickand s型的新的極值指數估計量，並建立它的相合性及漸近分佈。Asymptotic normality of multi - dimension quasi - maximum likelihood estimate in generalized linear models with adaptive design
自適應設計廣義線性回歸多維擬似然估計的漸近正態性The limit distributions of estimators and likelihood ratio test are given, the strong consistency of estimators is also proved
證明估計的強相合性和漸近正態性，給出似然比檢驗統計量的極限分佈，並討論基於精確分佈的檢驗問題。Abstract : the sample breakdown point of a test is defined as the smallest proportion of arbitrary outlier in the sample that reverses the test decision. in this paper, wegive the sample breakdown point of a test for maximum likelihood estimate of exponential distribution parameter and analyze the asymptotically normal characteristic of the sample breakdown point
文摘:如何量化一種統計方法對異常值的不敏感性一直是穩健統計研究的一個重要課題.檢驗的樣本崩潰點是樣本中能逆轉判決的離群值的最小比例.在研究相關文獻的基礎上，計算出指數分佈參數極大似然估計檢驗的樣本崩潰點，並分析了樣本崩潰點的漸近正態性，為量化統計方法的穩健性提供了一種新的途徑For viscous shock waves c, by the spectral analysis we prove that in l2 ( r ) space the essential spectra and the eigenvalues ( except the simple zero eigenvalue ) of the linearized operator have negative real parts, thus we show that the viscous shock waves c is locally asymptotically exponentially stable in l2 ( r ) space
對粘性沖擊波c利用類似方法，我們證得在l ~ 2 （ r ）空間線性化運算元的本質譜和除簡單特徵值零以外的特徵值均具有負實部。於是，我們得到粘性沖擊波c在l ~ 2 （ r ）空間的局部漸近指數穩定。In this paper, the limit theory is discussed and the main problems are solved as followed : 1. we will obtain asymptotic normality and consistency of mle for agarch model introduced by wu shuosi and fang zhaoben ( 2000 ). 2
對于吳碩思和方兆本（ 2000 ）提出的非對稱廣義自回歸條件異方差新模型，證明了它的極大似然估計（ mle ）的漸近正態性和相合性。The definition of the maximum likelihood estimator with the prior information ( pmle ) is given in this paper, and the consistency and asymptotic normality of pmle are proved
摘要定義了有先驗信息的極大似然估計，它能夠充分利用參數的先驗信息，還具有正規條件下的相合性和漸近正態性。We introduce liapunov - schmidt reduction method to investigate the bifurcation of a class of nonlinear reaction - diffusion equations in developmental biology. near the bifurcation point we obtain nontrivial solutions branch emitted from the trivial solution
首先，我們引入liapunov - schmidt約化方法，應用到該方程得到該非線性微分方程在分歧點附近分歧方程的解析近似表達式及其非平凡解的漸進表達式。Under appropriate assumptions, the existence of solution is proved by means of the theory of differential inequalities and the uniformly valid asymptotic expansion for arbitrary nthorder is obtained
在適當的條件下，利用微分不等式理論證明?解的存在性，得到?解的任意階近似的一致有效漸近展開式。In chapter 3 we construct two approximation algorithms which applying bin packing algorithms for scheduling problems, one is ff ( first fit ) algorithm used in parallel machine scheduling problem pm / / dj = d / n which has a lower bound of asymptotic worst - case performance ratio, another problem is scheduling independent parallel tasks in parallel identical machine systems to minimize the makespan, we use strip packing method for it and give an approximation algorithm with asymptotic performance ratio no more than 1. 6
第一個演算法利用裝箱問題中的ff （ firstfit ）演算法求解極大化按期完工工件數的平行機排序問題pm d _ j = d n - u _ j ，該近似演算法具有漸近性能比下界。第二個近似演算法利用二維裝箱中strippacking問題的演算法求解以極小化makespan為目標的帶并行工件的平行機排序問題，該演算法的漸近性能比具有下界1 . 5和上界1 . 6 。Here, we wonder whether those asymptotic properties are still true based on moment estimates, which have been proved to be true under the method of maximum likelihood estimates and other methods
這里，我們自然地想到，上述的一些漸近性質在極大似然估計方法和其他方法下成立，是否也會在矩估計方法下成立。In capter 2, it is proved that the system possesses a global attractor and a two - side estimate for the fractal dimension of it is presented. in capter 3, several different approximate intertial manifolds of the system are constructed by applying linear galerkin method, method of projecting operator and operator eigenvalue and successive iterative method, and it is proved that arbitary trajectory of the system enters into a small neighbourhood of the global attractor after large time. capter 4 studies the asymptotic attractor of the system by constructing a solution sequence which approaches to the global attractor of the equation in long time, and the dimentional estimate of the asymptotic attractor is given
第二章證明了該系統的整體吸引子的存在性，給出了其分形維數的上下界;第三章利用線性galerkin方法、運算元投射和運算元特徵值方法及逐次迭代方法構造了幾類近似慣性流形，證明了該方程的任意解軌道在長時間后進入整體吸引子的任意小鄰域;第四章構造了一個有限維解序列即該系統的漸近吸引子，證明了它在長時間后無限趨于方程的整體吸引子，並給出了漸近吸引子的維數估計In order to obtain an optimal estimate of the tilt angle and angle velocity, an indirect kalman filter configuration combining a rate gyroscope sensor and an accelerometer is implemented. because of the extreme nonlinearity of the two - wheeled self - balancing robot, application feasibility of nonlinear system control strategy based on linear approximation method, exact linearization and intelligent control have been investigated. according to robustness, balancing performance and environment adaptability, robust tracking control, linear quadratic regulator and fuzzy model reference learning control are implemented to the velocity controller
針對具有強非線性的前進子系統，論證了基於近似線性化、精確線性化及智能控制的非線性系統控制策略的應用可行性，據此按照不同性能要求設計了三種前進速度控制器:漸近跟蹤魯棒調節器簡單精確，具有良好的干擾抑制能力;二次型最優跟蹤控制器，在耗能最小的條件下，大大提高系統的平衡能力;而基於動態聚焦學習的模糊模型參考學習控制則兼具平衡性能好、環境適應性強、精度高及魯棒性好的優點。In chapter 4, a sirs epidemic model with stage - structure consisting immature and mature stage and time delay is studied. by using eigenvalue analysis we obtain that the asymptotic behavior of the model and the local asymptotic stability of its equilibrium
第四章的研究對象是一類具有階段結構和時滯的sirs傳染病模型，通過對模型的線性近似系統在其平衡態處的特徵根分析，得到模型平衡點的局部漸近穩定性等漸近性質。In this paper, we consider several classes of common ecological models such as predator prey model and epidemic model, and obtain uniform persistence and stability of the solution or the periodic solution by constructing appropriate lyapunov functional and using eigenvalue analysis to model ' s linear similar system at the equilibrium
本文所研究的問題涉及到生態系統中有關捕食-被捕食系統、流行病模型等幾個常見的生態模型的定性分析，所採用的研究方法是通過構造合適的lyapunov泛函以及對模型的線性近似系統在其平衡態處的特徵根分析，獲得模型解或正周期解的一致持久和穩定的漸近性質。Yi - ping chang. ( 2000. 8 ), “ an alternative reliability evaluation of nonhomogeneous poisson process models for software reliability ”. international journal of quality and reliability management, vol. 17, pp. 800 - 811
張揖平、李素惠. （ 2000 . 1 ） ，一些軟體可靠度模式中最大概似估計量存在之漸近性質，工業工程學刊，第17卷，第1期，頁41 - 50 。As an extension, we shall also consider similar problems for mixed quasimonotone reaction - diffusion systems with nonlocal boundary value conditions which kernel ki ( x, y ) is alternating sign. finally, in chapter 3, we use the above results to investigate the existence of positive periodic solutions and asymptotic behavior of solutions for the logistic equation with nonlocal boundary value conditions
我們還將非局部邊值條件中的核函數k _ 1 （ x ， y ）推廣到不必定號的情況，對混擬單調反應擴散系統周期擬解的存在性及其局部漸近性態獲得了類似的上、下解方法。分享友人