Table 2 The feature types and descriptions of the feature extraction.

From: Network security analysis based on feature selection and optimized fireworks algorithm

Feature type

Description

Function

Dimension reduction features of high-dimensional data

Data features extracted by dimension reduction techniques

Data simplification and feature extraction

Feature dataset

Datasets containing key information formed after dimension reduction

For the subsequent feature identification and comparison

Multi-label dataset characteristics

Dataset containing multiple labels

Assess and calculate feature datasets

Mismatched data replacement features

Features after replacing the data missing from the multi-label dataset

Ensure that the data is consistent with the actual labeled data set

Filter model features

FS model features used repeatedly in the filter

Filtering and feature identification

Grid-structure model features

The FS model features in the grid structure

Data standardization and feature identification

Multiple-objective recognition features

Optimized features for the rapid selection of key features from large amounts of data

Improve the identification efficiency and accuracy