Explainable LightGBM Approach for Predicting Myocardial Infarction Mortality

Author(s)

Garcez Vicente, Ana Leticia ; Malaquias, Roseval Donisete, Jr. ; Romero, Roseli A. F.

• Document type: Journal article
• Source: 2023 INTERNATIONAL CONFERENCE ON COMPUTATIONAL SCIENCE AND COMPUTATIONAL INTELLIGENCE, CSCI 2023; v. N/A, p. 6-pg., 2023-01-01.

Abstract

Myocardial Infarction is a main cause of mortality globally, and accurate risk prediction is crucial for improving patient outcomes. Machine Learning techniques have shown promise in identifying high-risk patients and predicting outcomes. However, patient data often contain vast amounts of information and missing values, posing challenges for feature selection and imputation methods. In this article, we investigate the impact of the data preprocessing task and compare three ensembles boosted tree methods to predict the risk of mortality in patients with myocardial infarction. Further, we use the Tree Shapley Additive Explanations method to identify relationships among all the features for the performed predictions, leveraging the entirety of the available data in the analysis. Notably, our approach achieved a superior performance when compared to other existing machine learning approaches, with an F1-score of 91,2 % and an accuracy of 91,8% for LightGBM without data preprocessing. (AU)

• FAPESP's process: 23/06737-7 - Graph Neural Networks applied to classification of autism symptoms in fMRI data
• Grantee: Ana Letícia Garcez Vicente
• Support Opportunities: Scholarships in Brazil - Master