Fig. 1From: Heuristic shortest hyperpaths in cell signaling hypergraphsHyperedge. A hyperedge e with \(\mathrm {tail}(e) = \{v_1, \ldots , v_k\}\) and \(\mathrm {head}(e) = \{w_1, \ldots , w_\ell \}\). To use e in a hyperpath P, every vertex \(v_i \in \mathrm {tail}(e)\) must have a preceding hyperedge f in P with \(v_i \in \mathrm {head}(f)\)Back to article page