Cycle Lifting (Graph to Cell) - geometric-intelligence/TopoBench GitHub Wiki

To lift a graph to a cell complex (CC) we proceed as follows. First, we identify a finite set of cycles (closed loops) within the graph. Second, each identified cycle in the graph is associated to a 2-cell, such that the boundary of the 2-cell is the cycle. The nodes and edges of the cell complex are inherited from the graph.

Reference: Topological Deep Learning: Going Beyond Graph Data, Appendix B