void Compute_Omega(double* X, double* Y, double* M, int* pn, int* pd, double* W)
{
int n=*pn, d=*pd;
- //int dim = d+d*d+d*d*d
+ int dim = d + d*d + d*d*d;
//double* W = (double*)calloc(dim*dim,sizeof(double));
double* g = (double*)malloc(dim * sizeof(double));
for (int i=0; i<n; i++)
{
// Fill gi:
for (int j=0; j<d; j++)
- g[j] = Y[i] * X[mi(i,j,n,d)] - M[i]
+ g[j] = Y[i] * X[mi(i,j,n,d)] - M[i];
for (int j=d; j<d+(d*d); j++)
{
int idx1 = (j-d) % d; //num row
g[j] = 0.0;
if (idx1 == idx2)
g[j] -= Y[i];
- g[j] += Y[i] * X[mi(i,idx1,n,d)]*X[mi(i,idx2,n,d)];
+ g[j] += Y[i] * X[mi(i,idx1,n,d)]*X[mi(i,idx2,n,d)] - M[i];
}
for (int j=d+d*d; j<dim; j++)
{
int idx2 = ((j-d-d*d - idx1) / d) %d; //num col
int idx3 = (((j-d-d*d - idx1) / d) - idx2) / d; //num "depth"
g[j] = 0.0;
- double tensor_elt = Y[i]*X[mi(i,k,n,d)] / n;
if (idx1 == idx2)
g[j] -= Y[i] * X[mi(i,idx3,n,d)];
if (idx1 == idx3)
g[j] -= Y[i] * X[mi(i,idx2,n,d)];
if (idx2 == idx3)
g[j] -= Y[i] * X[mi(i,idx1,n,d)];
- g[j] += Y[i] * X[mi(i,idx1,n,d)]*X[mi(i,idx2,n,d)]*X[mi(i,idx3,n,d)];
+ g[j] += Y[i] * X[mi(i,idx1,n,d)]*X[mi(i,idx2,n,d)]*X[mi(i,idx3,n,d)] - M[i];
}
// Add 1/n t(gi) %*% gi to W
for (int j=0; j<dim; j++)