Fig. 1
From: Detecting missing IS-A relations in the NCI Thesaurus using an enhanced hybrid approach
An example of non-lattice subgraphs in 19.08d version of NCI Thesaurus. Concepts are connected by IS-A relations. The red dotted line shows a potentially missing IS-A relation between concepts “Cutaneous Pseudolymphoma” and “Non-Neoplastic Skin Disorder” identified by our method