Principle correlated feature extraction using differential evolution for improved classification
Rathna Sekhar Pesaramelli, B K Sujatha, B K Sujatha · AIP conference proceedings · 2024
Classification algorithms rely heavily on feature selection (FS) for accuracy and performance, and this is a significant research topic.Filter feature selection algorithms are becoming increasingly popular because of their simplicity and quickness in many jobs that need feature selection.Each feature and the class labels are estimated using mutual information to determine the associations among each pair of features.A variety of factors, all based on shared knowledge, have led to the rise in popularity of this approach.Classification accuracy is frequently hindered by redundant or irrelevant elements in the obtained data.Instance and feature selection are two procedures that aid in the eradication of unnecessary data and so help to alleviate this issue.Users can categorize filtering, wrapping, and hybrid techniques under the broad heading of FS strategy.Principal Component Analysis (PCA) is a typical methodology for filtering data that is based on the data itself.Feature subsets satisfying a preset classifier that can be found using wrapper approaches, on the other hand.As a result, their accuracy is thoroughly scrutinized.The use of learning methods to evaluate feature subsets every time makes wrapper approaches expensive and prone to collapsing with a highnumber of features.Primarily Correlated Feature Extraction using Differential Evolution (PCFE-DE) is a new model for feature extraction that uses differential evolution to choose the most relevant features for analysis that is proposed in this research.Algorithms that have previously been used to classify data are compared to those that have not been used before.Tests on benchmark datasets reveal that the proposed approach may reduce the data size while maintaining or even improving classification performance in a majority of the cases.This in addition to the fact that the computing time has been much lowered with the proposed model.