Fig. 2From: A novel method for inference of acyclic chemical compounds with bounded branch-height based on artificial neural networks and integer programmingAn illustration of the k-branches (depicted by gray circles), the k-branch-subtree (depicted by solid lines) and k-fringe-trees (depicted by dashed lines) of \(H_2\): a \(k=1\); b \(k=2\); c \(k=3\)Back to article page