invariant function 中文意思是什麼
invariant function
解釋
不變的函數-
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 （ -
An aggregate function invariant to null values does not consider null values in the group while it is evaluating the aggregate value
對空值固定不變的聚合函數在求聚合值時不考慮組中的空值。 -
Abstract : the paper shows the relative deformation function of the cam mechanism with a roller follower as a linear time - invariant system, and gives the detail about the response limitation for the dynamic design and modification of cam mechanisms. an example demonstrates this approach can improve the flexible cam mechanisms
文摘:以滾子從動件平面凸輪機構為分析對象，提出了相對變形函數這一新概念，並從理論上對其進行了研究，最後藉助於一凸輪機構在不同參數下其擺臂最大相對變形量的數值計算過程與結果，闡述了基於該理論的凸輪機構動態設計與修改的具體實現步驟與方法。 -
Invariant distribution is a greatly important property of standard transition function in continuous - time markov chains and jump processes, it is of considerably significnce to study it
不變分佈是連續時間馬氏鏈中標準轉移函數及跳過程的一個重要性質，對不變分佈的討論有著十分重要的意義。 -
In this paper, we propose an adaptive wavelet transform which possess the properties of translation and scale invariance. firstly, the original signal is adaptively renormalized using a scale function of an orthonomal wavelet and the first two moments of the signal. then, we decompose the renomalized signal according to the conventional discrete wavelet transform. as we prove, this adaptive wavelet transform is translation - and scale - invariant, and an efficient algorithm for calculating these wavelet coefficients, called adaptive wavelet invariant moments, is proposed. finally, we give experiment results for 2 - dimension digital signals ( images ) to verify our conclusion
本文提出了一種具有平移和尺度不變性的自適應小波分解新方法，該方法利用信號的一階、二階矩及正交小波尺度函數，先對信號進行自適應小波「重整」 .然後再對重整后的信號進行普通小波變換.本文證明這種自適應小波變換是平移和尺度不變的，並給出了計算自適應小波變換系數（稱為小波不變矩）的一種有效演算法.對二維數字信號（圖像）的實驗證實了我們的結論 -
The aggregate function should be invariant to null values
聚合函數應該對空值固定不變。 -
Second, based on the theory of synthetic discriminant function, several sub - reference images were synthesized to form the reference image base to realize rotation distortion - invariant recognition, which also solved the ill - problem of synthesizing a single reference image with the whole training distorted images and made the pose estimation easier. third, the phase - encoding and amplitude modulation distortion - invariant jtc for multi - target recognition were described
其次，論文採用綜合識別函數方法構成子參考圖像，建立參考圖像庫的方法解決了目標旋轉畸變不變的識別問題，克服了由大量訓練圖像合成單幅參考圖像時，高頻信息損失嚴重的病態問題，並可實現對真實目標旋轉姿態的估計。 -
2. the time variant nonlinear model of the laser gyro inertial surveying and attitude reference system is changed and simplified to time invariant linear model of the error states using robust analysis method. these results make frequency analysis based on transfer function become possible which is important for dynamic system analysis
2 、採用魯棒分析方法，將激光陀螺慣性測量與姿態參考系統的時變非線性模型轉化為誤差狀態的近似線性定常模型，從而使基於傳遞函數的頻域分析成為可能，這對動態系統分析是至關重要的。 -
By comparing the image - preprocessing results of different processing algorithms, an optimized algorithm was decided to ensure satisfying correlation snr and preprocessing rate to be obtained. synthetic discriminant function ( sdf ) filters of the 3 - d targets were designed and the reference filter libs ( rfl ) were constructed to provide high correlation snr. real - time distortion - invariant optical correlation was realized by temporal - spatial multiplexing technique
為了保證opr系統有高的相關信噪比（ snr ）及良好的實時性能，本文對不同圖像預處理演算法的處理性能及效果進行了比較分析，為opr系統選取恰當的圖像預處理演算法提供了依據；將時間多重化技術與空間多重化技術相結合，設計製作了三維目標的可實時刷新的sdf參考濾波器庫，為opr系統提供了高snr的相關輸出，從而實現了opr系統對目標的實時畸變不變光學相關；將人工神經網路（ ann技術）用於相關信號后處理，有效提高了opr系統的識別效率。 -
Discussions on several methods of transfer function of linear time - invariant control systems
求線性定常控制系統傳遞函數的幾種方法 -
The state - space representation and the transfer function representation of fractional order linear time - invariant systems are introduced
摘要介紹了分數階線性定常系統的狀態方程描述和傳遞函數描述。 -
2. we introduced a new polygon periodic discrete curvature function based on curve continue curvature concept in 2d contour matching, the periodic discrete curvature has local, rotation and translation invariant. applying efficient techniques to find the proper matching substrings, we also applied the hashing technique to find long matching substrings
周期性離散曲率函數具有和原有曲率相似的位移、旋轉、縮放等特性，為提高匹配的準確度，利用高斯函數進行平滑處理，取得了較好的結果，同時該方法具有直觀、速度快等優點，在2d輪廓曲線的匹配中，具有實用可靠的用途。 -
The dissertation is devoted to the studies on invariant distribution and convergence rate. the aims of the paper are to identify invariant distribution of q - function and to find criteria of convergence rate which are easy to check
本學位論文致力於不變分佈和收斂速度的研究，其目的是得到q -函數不變分佈的構造，以及容易驗證的收斂速度判定準則。 -
In chapter 3, first we answer the open problem of williams ( 1979 ). we solve the problem completely when q - matrix is totally stable or uni - instantaneous, that is, we not only prove the existence of q - function but also identify the q - function. second, for invariant distribution of jump processes, we also obtain some good results
第三章首先回答了williams （ 1979 ）開問題，對q -矩陣為全穩定和單瞬時情形，完整的解決了該問題，也就是說，不僅證明了q -函數的存在性，而且還把具體的q -函數構造出來了；其次對跳過程的不變分佈，也得到了很好的結果。 -
Chapter 4 is dedicated to the study on - invariant distribution. first, as q - matrix is totally stable or uni - instantaneous, we prove the existence of - invariant distribution of q - function and identify the q - function. second, we generalize - invariant distribution to jump processes and obtain some good properties and results
第四章致力於-不變分佈的研究，首先對q -矩陣為全穩定和單瞬時情形，證明了q -函數-不變分佈的存在性，並且也把具體的q -函數構造出來了；然後把-不變分佈推廣到跳過程，得到了一些較好的性質和結果。 -
While the former means the income the occupation brings, the latter refers to its function in relation to the central values of a society. in other words, occupational prestige is closely associated with one s socio - economic status. according to past researches, a fundamental invariant exists the world over
至於職業聲望的評估標準，許教授分為兩個層面來探討：一是規范性的，強調該職業對社會的貢獻和對人類福祉的增進另一則是實際性的，指的是職業本身所帶來的物質報酬。 -
Abstract : geometric moment, the simplest moment function whose characteristics are invariant with respect to image plant transformations, finds many applications to object identification, object pose estimation ( image processing, image recognition and computer vision )
文摘:幾何矩是一種最簡單的矩函數，當圖像在平面上變動時它具有不變的特性.在目標識別、目標姿態的計算和其它領域（如圖像處理、圖像識別和計算機視覺等）有廣泛的應用 -
In the case of computation of invariant flow in the flume, the boundary conditions on bottom and wall of the flumes are managed specially according to the view of wall function method, and the formula about u * is deduced according to the hydraulic characteristic of invariant flow in the flume
在實驗水槽恆定流的計算中，根據壁面函數法的基本原理，對槽底及壁面的邊界條件做了相關的專門處理；並根據實驗水槽恆定流的水力特性，導出了摩阻流速計算公式。 -
If the optical system with ccd sensor is regarded as a spatially invariant linear system, the convolution of point spread function and the object image results in error on theory. since ccd sensor imaging is digital imaging, in this article, the image quality and resolution of the ccd sensor imaging is simulated and analyzed
鑒于ccd探測器成像是數字化成像，所以本文採用計算機模擬和ccd相機模擬成像試驗及理論分析的方法對ccd探測器的目標影像的分辨力與ccd像元分辨力的關系及像質進行了研究並獲得如下主要結論。
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