SPONGY (SPam ONtoloGY): Email Classification Using Two-Level Dynamic Ontology

Algorithm 4

Summary of classification result.

Number of Leaves: 74

Size of the tree:      147

Kappa statistic      0.9051

Mean absolute error     0.0706

Root mean squared error    0.1879

Relative absolute error    14.1563 %

Root relative squared error    37.6249%

Total Number of Instances    2108

Correctly classified emails    91.5085% (1929/2108)

Incorrectly classified emails    8.4915% (179/2108)