Yu Xing

Hello, I want to know the coordinate arrangement order of each sparse matrix in [MinkowskiEngine]. I want to add two sparse tensor, must the coordinates of the two be exactly...

I have a matrix A with shape [1,1,3,5](B,F,C1,C2), and another matrix B with shape [1,1,5,4]. Now, using function **MinkowskiEngine.MinkowskiOps.to_sparse**, I want to convert them into sparse matrices and multiply the...

关于多重网格法

1

您好，我想请问在多重网格法中，K^{l+1}=R^{l+1}_{l}·K^{l}·I^{l}_{l+1}这里面的R矩阵和I矩阵是三线性插值矩阵吗？以及在三维体素中，u和f都是三维的，那么K是一个6维的矩阵，所以请问一下这两个矩阵的具体的shape和数值是怎样的。