Research Article

An Optimized Computational Framework for Isolation Forest

Table 1

The notation definitions.

SymbolDescription

The value set for attribute
The anomalous value set for attribute
The normal value set for attribute
Mean function
Variance function
The distance between and
The dispersity between and
An index to measure the degree of the separability for attribute
Variable of gradient
A variable to quantify how many points can be skipped
A function to measure the depth of a leaf node in the iTree