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Hands-On Ensemble Learning with Python
book

Hands-On Ensemble Learning with Python

by George Kyriakides, Konstantinos G. Margaritis
July 2019
Beginner to intermediate
298 pages
7h 20m
English
Packt Publishing
Content preview from Hands-On Ensemble Learning with Python

Graph closure

Graph closure creates a graph from the co-occurrence matrix. Every element (instance pair) is treated as a node. Pairs that have a higher value than the threshold are connected by an edge. Following this, a clique formation occurs, according to a specified size (specified by the number of nodes in the clique). Cliques are subsets of the graph's nodes, such that every two nodes of the clique are neighbors. Finally, the cliques are combined to form unique clusters. In OpenEnsembles, it is implemented by the finish_graph_closure function, in the cluster class. The clique_size parameter determines the number of nodes in each clique. The threshold parameter determines the minimum co-occurrence that a pair must have in order to be ...

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Publisher Resources

ISBN: 9781789612851