Abstract
Nowadays, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) with COVID-19 public name (short for coronavirus disease 2019) encompassed the world and nations are trying to manage crisis with maximum medicine capacity, but how successful are they? Data envelopment analysis (DEA) is a powerful tool that answers the question with measuring the efficiency of nations, but the challenge is here that the COVID-19 data grow and change rapidly. So, efficiency measurement is difficult at any time of the epidemic because needs to re-implementing DEA models. At this point, Machine Learning (ML) comes to help, in way that efficiency scores prediction is feasible with supervised learning on DEA results, but accurate prediction in small-scale data is the next challenge. This paper investigates integrated DEA and ML (DEAML) to fix challenges. First, a relational two-stage model with desirable-undesirable variables is proposed to measure the efficiency of 50 nations by 5 December 2020. Then, a multi-layer perceptron (MLP) network with a Limited memory BFGS (L-BFGS) optimisation algorithm is proposed to predict the efficiency of nations at any time of the epidemic. The results are analysed and discussed.
ABBREVIATIONS: CCR: Charnes–Cooper-Rhodes; BPNN: Back-Propagation Neural Network; GANN: Genetic Algorithm integrated with Neural Network; SVM: Support Vector Machines; ISVM: Improved Support Vector Machines; OECD: Organization for Economic Co-operation and Development; BCC: Banker-Charnes–Cooper; CART: Classification And Regression Trees; BT: Boosted Tree; PCR: Polymerase Chain Reaction; ICU: Intensive Care Unit; VRS: Variable Return to Scale; MSE: Mean Squared Error; GDP: Gross Domestic Product
Acknowledgements
The authors would like to thank the anonymous reviewers and the editors for their insightful comments and suggestions
Disclosure statement
No potential conflict of interest was reported by the author(s).
Data availability statement
https://www.worldometers.info/coronavirus/; http://www.healthdata.org/covid/data-downloads/.
Additional information
Notes on contributors
Ali Taherinezhad
Ali Taherinezhad is currently M.Sc. Student in the field of Industrial Engineering – Systems Optimisation in Qazvin Islamic Azad University. He received his B.Sc. degree in the field of Industrial Engineering in 2019 from Qazvin Islamic Azad University. His research interests are Mathematical Modelling, Data Analytics and Machine Learning.
Alireza Alinezhad
Alireza Alinezhad received his B.Sc. degree in Applied Mathematics from Iran University of Science and Technology, M.Sc. degree in Industrial Engineering from Tarbiat Modarres University, and Ph.D. degree in Industrial Engineering, from Islamic Azad University, Science and Research Branch. He is currently an Associate Professor at the Department of Industrial Engineering, Qazvin branch, Islamic Azad University, Qazvin, Iran. His research interests are Data Envelopment Analysis (DEA), Multiple Criteria Decision Making (MCDM), and quality engineering and management.