Hi! In the documentation for WikiMath dataset it's said that the graph is directed. However, while investigating graph structure, it turned out that there are no edges between nodes i and j if i >= j - adjacency matrix is upper triangular with zeros on the main diagonal.
This fact doesn't violate the property of a graph being directed, but it seems very strange, especially for such web-graph dataset, b.c. there are no loops in a graph.
Is there any mistake in the adjacency, or maybe graph should be undirected?
Hi! In the documentation for WikiMath dataset it's said that the graph is directed. However, while investigating graph structure, it turned out that there are no edges between nodes
iandjifi >= j- adjacency matrix is upper triangular with zeros on the main diagonal.This fact doesn't violate the property of a graph being directed, but it seems very strange, especially for such web-graph dataset, b.c. there are no loops in a graph.
Is there any mistake in the adjacency, or maybe graph should be undirected?