Research Article

Machine-Learning Classifier for Patients with Major Depressive Disorder: Multifeature Approach Based on a High-Order Minimum Spanning Tree Functional Brain Network

Table 2

Definitions and formulae of minimum spanning tree network properties.

ConceptExplanationFormula

DegreeNumber of links for a given node

EccentricityLongest shortest path from a reference node to any other node in the minimum spanning tree

Betweenness centralityFraction of all shortest paths that pass through a particular node

, connection between and j; , shortest path from u to v; , number of shortest paths between h and j; , number of shortest paths between h and which passthrough i.