Fig. 20From: Course-prerequisite networks for analyzing and understanding academic curriculaA network representation of the area-of-study interdependence matrix \(R^{{\mathcal {A}}}\) for the LCC \({\mathcal {G}}\) of the Caltech CPN. Nodes represent areas of study, each link is directed and starts from the node of the same color. The thickness if a link from a to \(a'\) is proportional to the value of \(R_{aa'}^{{\mathcal {A}}}\). Self-links (from a to a) are not shownBack to article page