目标函数看上去确实是凸的，报这个错可能的原因：1. G(SH'H)^(-1)G'的计算错误导致成非半正定的（可以检查下特征值） 2. 在用matlab求解的时候，函数调用参数写错 建议直接把数据给出，一起看下
MATLAB Online에서 열기 When the large-scale method is used on a problem with a feasible solution, the following error is generated: ERROR: Exiting: One ormore of the residuals, dualitygap, ortotal relative error has stalled:
But the problem is that unless i plot them i dont know which point is what. I want to use some logic like if its above centroid then head or below centroid then legs or some other idea/heuristics but i dont know if its possible in Matlab. I am attaching an image with detected ...
whereuis the original true image,fis the corresponding noisy version, andnrepresents additive noise. Solving theufrom the linear system (1) is a classical inverse problem, which is actually an ill-posed problem since the solution ofuis non-unique and is very sensitive to the initialization. A ...
Is the function convex? Error using barrier↵Nonlinear constraint function is undefined at initial point. Fmincon cannot continue.Follow 2 views (last 30 days) GIORGIA P on 4 Jun 2021 Vote 0 Link Dear all, I am deling with a minimization problem in ma...
The signal is a convex quadratic chirp whose frequency increases from 300 Hz to 1300 Hz during the measurement. The chirp is embedded in white Gaussian noise. fs = 3000; t = 0:1/fs:1-1/fs; x1 = chirp(t,300,t(end),1300,'quadratic',0,'convex') + ... randn(size(t))/100; ...
No, a convex function with an open domain (like your problem where the domain is x1>0, x2>0) will not have a finite global max. On a closed domain, there will be a global max, but the gradient won't be zero there.
are central to the intellectual goal of quantifying a color gamut. Because each of the edges of a convex hull is a potentially observable color contrast between color points, each makes a legitimate contribution to the estimate of the volume of color space occupied. The α-shapes method of est...
The forcing term f(x) is arbitrary; Ω is either a rectangle or a disk in two dimensions, or a sphere in three dimensions. All programs were implemented in Matlab, and are respectively optimized to avoid loops and use vector and matrix operations even at the stage of problem formulation, ...
Someone suggested the following, which I believe is a linear programming problem, and seems to give a nice way of solving this. Unfortunately I know nothing about LP, and thus I do not know how to fill in the details and transfer the idea into matl...