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Subspaces

Code 1-4 of 4   






This function returns the basis of the intersection of N subspaces defined by their bases, and the dimension of this intersection. The input basis vectors must be row vectors!

Example:
A = [1,1,-1,1; %<-basis vector
1,2,-1,2; %<-basic vector
2,1,-1,2];
B = [1,1,1,-1;
1,-1,1,1;
3,3,1,-1];
C = [1,0,1,1;
1,1,1,1]
------
[int,dim] = findIntersect(A,B,C)

int = [1 -1...



An implementation of "k-Means Projective Clustering" by P. K. Agarwal and N. H. Mustafa.

This method of clustering is based on finding few subspaces such that each point is close to a subspace.



SUBSPACE(A,B) finds the largest angle between two subspaces specified by the columns of A and B. If A and B are vectors of unit length, this is the same as COS(ABS(A'*B)) in exact arithmetic. This is a replacement for MATLAB's SUBSPACE.m Rev....



Let us suppose a set of non-linear equations in the form
F(m) = d
(m,d are vectors, F is a vector function of vector argument). ANNI tries to construct suitable numerical approximation for inverse projection of d to m, i.e. to find...