Developing a novel integrated generalised data envelopment analysis (DEA) to evaluate hospitals providing stroke care services

M Mirmozaffari, E Shadkam, SM Khalili, M Yazdani - Bioengineering, 2021 - mdpi.com
Stroke is the biggest cause of adult disability and the third biggest cause of death in the US.
Stroke is a medical emergency, and the treatment given in the early hours is important in …

Ambulance allocation optimization model for the overcrowding problem in US emergency departments: A case study in Florida

JA Acuna, JL Zayas-Castro, H Charkhgard - Socio-Economic Planning …, 2020 - Elsevier
In the last decade, emergency department (ED) overcrowding has become a national crisis
for the US healthcare system. Increasing mortality rates, decreasing quality of care, financial …

Empowering end-use consumers of electricity to aggregate for demand-side participation

KA Melendez, V Subramanian, TK Das, C Kwon - Applied Energy, 2019 - Elsevier
End-use consumers (peers) are being empowered to aggregate for direct demand-side
participation through load scheduling and energy sharing. This is the result of the growth of …

A novel convex relaxation-strategy-based algorithm for solving linear multiplicative problems

C Wang, Y Deng, P Shen - Journal of Computational and Applied …, 2022 - Elsevier
Linear multiplicative programming (LMP) problems have many applications, although their
solving can be difficult. To solve LMPs, we propose a convex approximation approach with a …

A study of an EOQ model under lock fuzzy environment

S Maity, SK De, S Prasad Mondal - Mathematics, 2019 - mdpi.com
The present article was developed for the economic order quantity (EOQ) inventory model
under daytime, non-random, uncertain demand. In any inventory management problem …

A branch-and-bound algorithm for a class of mixed integer linear maximum multiplicative programs: A bi-objective optimization approach

PG Saghand, H Charkhgard, C Kwon - Computers & Operations Research, 2019 - Elsevier
We present a linear programming based branch-and-bound algorithm for a class of mixed
integer optimization problems with a bi-linear objective function and linear constraints. This …

Output-space branch-and-bound reduction algorithm for a class of linear multiplicative programs

B Zhang, Y Gao, X Liu, X Huang - Mathematics, 2020 - mdpi.com
In this paper, a new relaxation bounding method is proposed for a class of linear
multiplicative programs. Although the 2 p− 1 variable is introduced in the construction of …

The magic of nash social welfare in optimization: Do not sum, just multiply!

H Charkhgard, K Keshanian, R Esmaeilbeigi… - The ANZIAM …, 2022 - cambridge.org
We explain some key challenges when dealing with a single-or multi-objective optimization
problem in practice. To overcome these challenges, we present a mathematical program …

The waiting game–how cooperation between public and private hospitals can help reduce waiting lists

JA Acuna, JL Zayas-Castro, F Feijoo… - Health Care …, 2022 - Springer
Prolonged waiting to access health care is a primary concern for nations aiming for
comprehensive effective care, due to its adverse effects on mortality, quality of life, and …

Enhancing in search of Milankovitch cycles from stratigraphic record using convex optimization algorithm

S Alam, MSD Hadian, AH Hamdani, N Sulaiman - Scientific Reports, 2025 - nature.com
Accurately identifying Milankovitch cycles has been a significant challenge in
cyclostratigraphic studies, as it is essential for improving geochronology. This manuscript …