In torch_geometric, the adjacent matrix is represented as sparse edge index (graph connectivity in COO format with shape). There are two potential advantages of sparse edge index: 1. less memory utilization; 2. graphs in one minibatch are represented by one edge_index tensor. Considering to be compatible.
Summary
In torch_geometric, the adjacent matrix is represented as sparse edge index (graph connectivity in COO format with shape). There are two potential advantages of sparse edge index: 1. less memory utilization; 2. graphs in one minibatch are represented by one
edge_indextensor. Considering to be compatible.