Figure 1From: Functional characterization and topological modularity of molecular interaction networksSample ontology. S1 = {c4}, S2 = {c4}, S3 = {c4, c6}, S4 = {c1, c6}, S5 = {c1}, S6 = {c6}. Sample ontology and annotations. Each node of the hierarchy represents a term, each set represents a protein.Back to article page