4.6 Article

EXplainable AI for Decision Support to Obesity Comorbidities Diagnosis

Journal

IEEE ACCESS
Volume 11, Issue -, Pages 107767-107782

Publisher

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/ACCESS.2023.3320057

Keywords

Diseases; Diabetes; Heart; Artificial intelligence; Pathology; Obesity; Predictive models; Decision support systems; Clinical diagnosis; Machine learning; Clinical decision support system; explainable artificial intelligence; multi-node graph; machine learning; obesity comorbidity; predictive models

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This paper describes the implementation of a comprehensive clinical decision support system (CDSS) for predicting risk factors of comorbidities related to obesity and analyzing the indirect connections between these comorbidities and non-communicable diseases. The CDSS consists of ML predictive models, explainable artificial intelligence (XAI) model interpretation, and a graph-based representation. Multiple ML models are compared and the best-performing models for each disease are identified. The system provides risk factor prediction and model explanation for significant case studies, as well as a graph-based visualization of indirect disease co-occurrence.
This paper describes the implementation of a comprehensive clinical decision support system (CDSS) for the risk factors prediction of comorbidities related to obesity and for the characterization of indirect connections between such comorbidities and non-communicable diseases. In particular, the direct correlation between obesity, diabetes, cardiovascular, and heart disease is analyzed by using machine learning (ML) predictive models, while the connection of the co-occurring disorders to the numerous additional non-communicable diseases is analyzed via a graph-based user interface. The CDSS here proposed is, therefore, structured with three main components: ML predictive models based on publicly available datasets, explainable artificial intelligence (XAI) local and global model interpretation, and graph-based representation of non-communicable disease connections. Multiple ML models are presented for risk assessment and a comparison is carried out based on performance key performance indicators. The best-performing model for each disease was proved to be: the multi-layer perceptron for diabetes and heart disease, and extreme gradient boosting for cardiovascular disease. Comorbidities risk factor prediction and a XAI local model explanation is performed on significant case studies. In addition, XAI global model interpretation is given for the entire dataset providing insights on the features' contribution to the models' implementation. Moreover, the graph-based visualization of indirect disease co-occurrence is performed by filtering connections according to different relative risk factor thresholds. This interface can be exploited by healthcare professionals to obtain, according to the needs and the clinical approach, a global perspective on obesity and its associated pathologies prevention as well as long-term treatment and care provision.

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