Open Access

ARTICLE

Classifying Big Medical Data through Bootstrap Decision Forest Using Penalizing Attributes

by V. Gowri^1,*, V. Vijaya Chamundeeswari²

1 Department of CSE, SRM Institute of Science and Technology, Ramapuram Campus, Chennai, Tamilnadu, India
2 Department of CSE, Saveetha Engineering College, Chennai, Tamilnadu, India

* Corresponding Author: V. Gowri. Email:

Intelligent Automation & Soft Computing 2023, 36(3), 3675-3690. https://doi.org/10.32604/iasc.2023.035817

Received 05 September 2022; Accepted 14 November 2022; Issue published 15 March 2023

Abstract

Decision forest is a well-renowned machine learning technique to address the detection and prediction problems related to clinical data. But, the traditional decision forest (DF) algorithms have lower classification accuracy and cannot handle high-dimensional feature space effectively. In this work, we propose a bootstrap decision forest using penalizing attributes (BFPA) algorithm to predict heart disease with higher accuracy. This work integrates a significance-based attribute selection (SAS) algorithm with the BFPA classifier to improve the performance of the diagnostic system in identifying cardiac illness. The proposed SAS algorithm is used to determine the correlation among attributes and to select the optimum subset of feature space for learning and testing processes. BFPA selects the optimal number of learning and testing data points as well as the density of trees in the forest to realize higher prediction accuracy in classifying imbalanced datasets effectively. The effectiveness of the developed classifier is cautiously verified on the real-world database (i.e., Heart disease dataset from UCI repository) by relating its enactment with many advanced approaches with respect to the accuracy, sensitivity, specificity, precision, and intersection over-union (IoU). The empirical results demonstrate that the intended classification approach outdoes other approaches with superior enactment regarding the accuracy, precision, sensitivity, specificity, and IoU of 94.7%, 99.2%, 90.1%, 91.1%, and 90.4%, correspondingly. Additionally, we carry out Wilcoxon’s rank-sum test to determine whether our proposed classifier with feature selection method enables a noteworthy enhancement related to other classifiers or not. From the experimental results, we can conclude that the integration of SAS and BFPA outperforms other classifiers recently reported in the literature.

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Keywords

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