Predicting and Validating Protein Interactions Using Network Structure
Figure 1
Upcast Sets of Characteristic Pairs and Triplets.
In this example, we consider only a single characteristic (e.g., protein function), so that the characteristic vector for a protein is a 1-vector. There are three single-category proteins and one two-category protein in the protein interaction network (left), which result in an upcast set of six characteristic pairs {A–B, A–B, A–D, B–D, B–C, C–D}. Alternatively, the upcast set of triplets includes two triangles and three lines.