Motif searching graph. Source, intermediary and destination motifs are represented by nodes colored in blue, purple and red. The size of node is proportional to its in-degree. Arrows between nodes indicate reference motif searching pathways. This figure demonstrates the fast convergence of the vast majority of motif candidates using the Quantum Particle Swarm Optimization algorithm.
Wang et al. BMC Genomics 2011 12(Suppl 5):S8 doi:10.1186/1471-2164-12-S5-S8