ill-posed 中文意思是什麼

ill-posed 解釋
提法不當的
  • ill : adj （worse; worst ）1 〈用作表語〉有病的。 ★英國此義作修飾語時是用 sick 美國無論作表語或作修飾語...
  • posed : 位置的
  1. First, in virtual of identification of flaws is a typical of in - verse problems, proceeding from time - harmonic electromagnetic maxwell ' s equa - tion and helmholtz equation, the uniqueness and existence of direct scattering problems including the numerical algorithms of diverse of boundary conditions is given. second, the uniqueness and existence of inverse scattering problems and the theory of ill - posed integral equation are briefly looked back upon. finally, indicator function method for boundary identification is set up under all kinds of boundary conditions for inverse scattering of homogenous and inhomogenous objects, meanwhile, the proof of possibility for near - field measurements and nu - merical simulation are given

    由於缺陷的識別是一類典型的反問題，因而首先從時諧電磁maxwell方程和helmholz方程出發，具體地闡述了求解正散射問題的有關方法，包括各種（夾雜）邊界條件下的數值解法，就解的存在性唯一性給予了肯定的回答；隨后對逆散射問題的理論作了簡短的回顧，包括解的唯一性以及非線性不適定積分方程的處理等；然後對均勻介質和非均勻介質的逆散射問題建立了在各種邊界條件下的邊界識別的指示函數方法，鑒于近場數據獲得的重要性，對近場測試時邊界識別的方法給予了相應的證明，並且實現了數值模擬。
  2. An implicit iterative method for l - generalized solution of linear ill - posed equations

    廣義解的隱式迭代法
  3. Ill - posed nature and regularization of inverse problem for one dimensional wave equation

    一維波動方程反問題的不適定性及正則化分析
  4. Implicit iterative methods based on some orthogonal polynomials for ill - posed operator equations

    基於正交多項式的解不適定運算元方程的隱式迭代法
  5. The unified formula helps to hold the commonness of the ill - posed problems and analyze their individuality

    這個統一表達式有助於把握這些問題的共性，分析它們的個性。
  6. Effective methods that can tackle the ill - posed problems are the so - called regularization methods during the inverse process

    正則化方法是在求該逆過程中解決病態性問題的有效方法。
  7. Superresolution from a single low - resolution, and possibly blurred, image is known to be highly ill - posed

    人所共知：從一個低解析度的可能有模糊的圖像來獲得超解析度的提法是很不適當的。
  8. Bertero, m., t. poggio, and v. torre. " ill - posed problems in early vision. " proc. of the ieee ? 76 ( 1988 ) : ? 869 - 889

    雖然局限於初期視覺，但該文包含了關于病態問題和正則化方法的易讀的介紹性內容。
  9. Though restricted to early vision, it contains an easy - to - read introduction to ill - posed problems and regularization methods

    雖然受限於早期觀點，但這篇介紹非良置性問題和正規化理論的文章很容易閱讀。
  10. The electromagnetic inverse scattering is one of most difficult problem due partly to its ill - posed, nonlinear and instablity nature

    由於逆散射問題的求解存在病態性、非唯一性以及不穩定性，這給它的求解帶來很大困難。
  11. By means of idea of the quasi - solution the inverse problem is converted into a sequence of well - posed forward problems and an ill - posed system of algebraic equations

    應用擬解法的思想，把原問題分解為一系列適定的正問題和一個不適定的線性代數方程組。
  12. If the edge types are classified in prior, then the smoothing scale can be selected rightly and the ill - posed problem of edge detection will be solved comparatively well

    若能預先對邊緣類型進行分類，則可選取合適的平滑尺度，較好地解決邊緣檢測的「兩難」問題。
  13. Systematical research on the theory and methods of processing the ill - posed problems is an important task and grows to a significant subject direction in geodesy

    系統研究不適定問題的處理理論和方法，是大地測量數據處理中的一項重要課題，已經發展成為一個重要的學科方向。
  14. In conclusion the main contents are as follows : 1. in the field of edge detection, the noise reducing and edge localization are contradictory parts and are regarded as an ill - posed problem

    主要內容有： 1 ）在邊緣檢測中，噪聲消除與邊緣定位是兩個相互矛盾的部分，是一個「兩難」問題。
  15. This paper emploied gp ( genetic program ) to identify and built the model of right - side function of parabolic equations and adopt regularization method to solute its intrinsic ill - posed problem

    摘要用遺傳程序設計反演二維拋物型方程右端函數模型並在求解右端函數的適應值評價中我們採用正則化來解決反演中的不適定問題。
  16. Due to the fact that the problem of reconstructing image from compton scattering energy spectral data is an ill - posed problem, any error or noise in the measurements will be amplified in the reconstruction results

    由於從康普頓散射能譜直接求逆重建密度圖像是一個不適定性問題，測量的微小誤差會在重建結果中被放大。
  17. The artificial neural network is used to tackle an ill - posed problem of the parameter identification and to approximate nonlinear function relationship between the vibration responses of the hydraulic generator and model parameters

    利用人工神經網路具有解決參數識別反問題不適定性的能力，建立了水輪機系統響應與模型參數之間近似的非線性函數關系。
  18. From mathematical models for inverse scattering in two dimensional inho - mogenous media including variable impedance, all kinds of probable mixed variable impedance boundaries and cracks, from interior and exterior trans - mission problems and radiation condition, ill - posed integral equation and indicator function method are formulated for the diverse of boundary iden - tification. it is shown that the kernel of the integral equation characters the boundary of scatterer, which is determined by solving it by virtual of regularity method, meanwhile, some numerical tests are given. 3

    在二維非均勻介質逆散射邊界識別的數學模型（包括一般的非均勻介質，正交各向異性介質，變阻抗介質，各種可能的混合變阻抗邊界問題）下，由內透射問題和外透射問題以及輻射條件，推導了上述介質的邊界識別的積分方程和指示函數方法，由於積分方程的核充分表徵了散射物的邊界，由此說明只要利用正則化方法求解該積分方程，就可以確定散射物的邊界。
  19. From mathematical models for inverse scattering in two dimensional homoge - nous media including dirichlet, neumann, robin, all kinds of probable mixed boundaries and cracks, direct and inverse scattering are discussed, and ill - posed integral equation and indicator function method are formulated for the diverse of boundary identification. it is shown that the kernel of the integral equation characters the boundary of scatterer, which is determined by solv - ing it by virtual of regularity method, meanwhile, some numerical tests are given. 2

    在二維均勻介質逆散射各種邊界識別的數學模型（包括dirichlet ， neumann ， robin ，各種可能的混合邊界問題，裂紋問題）下，分別考慮了正散射問題和逆散射問題，推導了上述各種邊界識別的不適定積分方程以及指示函數方法，由於積分方程的核充分表徵了散射物的邊界，由此說明只要利用正則化方法求解該積分方程，就可以確定散射物的邊界，並給出了一些數值實驗。
  20. The use of tikhonov regularization theory was to solve ill - posed problem of image reconstruction and the use of sirt algorithm was to improve the quality of the final reconstructed image

    為了克服圖像重建中的不適定性問題，利用tikhonov正則化原理進行初始圖像重建。 sirt演算法則用來對初始重建圖像進行迭代改善以獲得最終重建圖像，改善了重建圖像的質量。
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