A modification of a mixed integer linear programming (MILP) model to avoid the computational complexity. - H. Hasan Örkcü; Mehmet Güray Ünsal; Hasan Bal (Ann. Oper. Res., 2015)

Investigating socio-economic ranking of cities in Turkey using data envelopment analysis (DEA) and linear discriminant analysis (LDA). - Mehmet Güray Ünsal; Ezgi Nazman (Ann. Oper. Res., 2020)

Use of the heuristic optimization in the parameter estimation of generalized gamma distribution: comparison of GA, DE, PSO and SA methods. - Volkan Soner Özsoy; Mehmet Güray Ünsal; H. Hasan Örkcü (Comput. Stat., 2020)

The curse of dimensionality (COD), misclassified DMUs, and Bayesian DEA. - Mehmet Güray Ünsal; Daniel Friesner; Robert Rosenman (Commun. Stat. Simul. Comput., 2022)