Delegate DirectILKernelGenerator.GramKernel

Namespace

NumSharp.Backends.Kernels

Assembly

NumSharp.dll

Computes the symmetric Gram matrix G = A @ B^T for row-major A, B each shaped (m, k), into the (m, m) buffer g. The result is symmetric (g[i,j] == g[j,i]); the upper triangle is computed and mirrored. For the unweighted covariance a == b (the same buffer); the weighted form passes b = Xc*w.

public delegate void DirectILKernelGenerator.GramKernel(void* a, void* b, void* g, int m, long k)

Parameters

a void*

Computes the symmetric Gram matrix G = A @ B^T for row-major A, B each shaped (m, k), into the (m, m) buffer g. The result is symmetric (g[i,j] == g[j,i]); the upper triangle is computed and mirrored. For the unweighted covariance a == b (the same buffer); the weighted form passes b = Xc*w.

b void*

Computes the symmetric Gram matrix G = A @ B^T for row-major A, B each shaped (m, k), into the (m, m) buffer g. The result is symmetric (g[i,j] == g[j,i]); the upper triangle is computed and mirrored. For the unweighted covariance a == b (the same buffer); the weighted form passes b = Xc*w.

g void*

Computes the symmetric Gram matrix G = A @ B^T for row-major A, B each shaped (m, k), into the (m, m) buffer g. The result is symmetric (g[i,j] == g[j,i]); the upper triangle is computed and mirrored. For the unweighted covariance a == b (the same buffer); the weighted form passes b = Xc*w.

m int

Computes the symmetric Gram matrix G = A @ B^T for row-major A, B each shaped (m, k), into the (m, m) buffer g. The result is symmetric (g[i,j] == g[j,i]); the upper triangle is computed and mirrored. For the unweighted covariance a == b (the same buffer); the weighted form passes b = Xc*w.

k long

Computes the symmetric Gram matrix G = A @ B^T for row-major A, B each shaped (m, k), into the (m, m) buffer g. The result is symmetric (g[i,j] == g[j,i]); the upper triangle is computed and mirrored. For the unweighted covariance a == b (the same buffer); the weighted form passes b = Xc*w.