Exploration of black boxes of supervised machine learning models: A demonstration on development of predictive heart risk score

Machine learning (ML) often provides applicable high-performance models to facilitate decision-makers in various fields. However, this high performance is achieved at the expense of the interpretability of these models, which has been criticized by practitioners and has become a significant hindranc...

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Main Authors: Sajid, Mirza Rizwan, Khan, Arshad Ali, Albar, Haitham M., Noryanti, Muhammad, Sami, Waqas, Bukhari, Syed Ahmad Chan, Wajahat, Iram
Format: Article
Language:English
Published: Hindawi Limited 2022
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/35145/1/Exploration%20of%20black%20boxes%20of%20supervised%20machine%20learning%20models_A%20demonstration%20on%20development.pdf
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author Sajid, Mirza Rizwan
Khan, Arshad Ali
Albar, Haitham M.
Noryanti, Muhammad
Sami, Waqas
Bukhari, Syed Ahmad Chan
Wajahat, Iram
author_facet Sajid, Mirza Rizwan
Khan, Arshad Ali
Albar, Haitham M.
Noryanti, Muhammad
Sami, Waqas
Bukhari, Syed Ahmad Chan
Wajahat, Iram
author_sort Sajid, Mirza Rizwan
collection UMP
description Machine learning (ML) often provides applicable high-performance models to facilitate decision-makers in various fields. However, this high performance is achieved at the expense of the interpretability of these models, which has been criticized by practitioners and has become a significant hindrance in their application. Therefore, in highly sensitive decisions, black boxes of ML models are not recommended. We proposed a novel methodology that uses complex supervised ML models and transforms them into simple, interpretable, transparent statistical models. This methodology is like stacking ensemble ML in which the best ML models are used as a base learner to compute relative feature weights. The index of these weights is further used as a single covariate in the simple logistic regression model to estimate the likelihood of an event. We tested this methodology on the primary dataset related to cardiovascular diseases (CVDs), the leading cause of mortalities in recent times. Therefore, early risk assessment is an important dimension that can potentially reduce the burden of CVDs and their related mortality through accurate but interpretable risk prediction models. We developed an artificial neural network and support vector machines based on ML models and transformed them into a simple statistical model and heart risk scores. These simplified models were found transparent, reliable, valid, interpretable, and approximate in predictions. The findings of this study suggest that complex supervised ML models can be efficiently transformed into simple statistical models that can also be validated.
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spelling UMPir351452023-01-17T02:36:42Z http://umpir.ump.edu.my/id/eprint/35145/ Exploration of black boxes of supervised machine learning models: A demonstration on development of predictive heart risk score Sajid, Mirza Rizwan Khan, Arshad Ali Albar, Haitham M. Noryanti, Muhammad Sami, Waqas Bukhari, Syed Ahmad Chan Wajahat, Iram QA Mathematics QA75 Electronic computers. Computer science QA76 Computer software T Technology (General) TA Engineering (General). Civil engineering (General) Machine learning (ML) often provides applicable high-performance models to facilitate decision-makers in various fields. However, this high performance is achieved at the expense of the interpretability of these models, which has been criticized by practitioners and has become a significant hindrance in their application. Therefore, in highly sensitive decisions, black boxes of ML models are not recommended. We proposed a novel methodology that uses complex supervised ML models and transforms them into simple, interpretable, transparent statistical models. This methodology is like stacking ensemble ML in which the best ML models are used as a base learner to compute relative feature weights. The index of these weights is further used as a single covariate in the simple logistic regression model to estimate the likelihood of an event. We tested this methodology on the primary dataset related to cardiovascular diseases (CVDs), the leading cause of mortalities in recent times. Therefore, early risk assessment is an important dimension that can potentially reduce the burden of CVDs and their related mortality through accurate but interpretable risk prediction models. We developed an artificial neural network and support vector machines based on ML models and transformed them into a simple statistical model and heart risk scores. These simplified models were found transparent, reliable, valid, interpretable, and approximate in predictions. The findings of this study suggest that complex supervised ML models can be efficiently transformed into simple statistical models that can also be validated. Hindawi Limited 2022 Article PeerReviewed pdf en cc_by_4 http://umpir.ump.edu.my/id/eprint/35145/1/Exploration%20of%20black%20boxes%20of%20supervised%20machine%20learning%20models_A%20demonstration%20on%20development.pdf Sajid, Mirza Rizwan and Khan, Arshad Ali and Albar, Haitham M. and Noryanti, Muhammad and Sami, Waqas and Bukhari, Syed Ahmad Chan and Wajahat, Iram (2022) Exploration of black boxes of supervised machine learning models: A demonstration on development of predictive heart risk score. Computational Intelligence and Neuroscience, 2022 (5475313). pp. 1-11. ISSN 1687-5265. (Published) https://doi.org/10.1155/2022/5475313 https://doi.org/10.1155/2022/5475313
spellingShingle QA Mathematics
QA75 Electronic computers. Computer science
QA76 Computer software
T Technology (General)
TA Engineering (General). Civil engineering (General)
Sajid, Mirza Rizwan
Khan, Arshad Ali
Albar, Haitham M.
Noryanti, Muhammad
Sami, Waqas
Bukhari, Syed Ahmad Chan
Wajahat, Iram
Exploration of black boxes of supervised machine learning models: A demonstration on development of predictive heart risk score
title Exploration of black boxes of supervised machine learning models: A demonstration on development of predictive heart risk score
title_full Exploration of black boxes of supervised machine learning models: A demonstration on development of predictive heart risk score
title_fullStr Exploration of black boxes of supervised machine learning models: A demonstration on development of predictive heart risk score
title_full_unstemmed Exploration of black boxes of supervised machine learning models: A demonstration on development of predictive heart risk score
title_short Exploration of black boxes of supervised machine learning models: A demonstration on development of predictive heart risk score
title_sort exploration of black boxes of supervised machine learning models a demonstration on development of predictive heart risk score
topic QA Mathematics
QA75 Electronic computers. Computer science
QA76 Computer software
T Technology (General)
TA Engineering (General). Civil engineering (General)
url http://umpir.ump.edu.my/id/eprint/35145/1/Exploration%20of%20black%20boxes%20of%20supervised%20machine%20learning%20models_A%20demonstration%20on%20development.pdf
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