An Extended Numeration Method for Solving Free disposal Hull Models in DEA. - Abolfazl Keshvari; Nasim Dehghan Hardoroudi (Asia Pac. J. Oper. Res., 2008)

Stochastic non-convex envelopment of data: Applying isotonic regression to frontier estimation. - Abolfazl Keshvari; Timo Kuosmanen (Eur. J. Oper. Res., 2013)

Solving cardinality constrained mean-variance portfolio problems via MILP. - Nasim Dehghan Hardoroudi; Abolfazl Keshvari; Markku Kallio; Pekka Korhonen (Ann. Oper. Res., 2017)

A penalized method for multivariate concave least squares with application to productivity analysis. - Abolfazl Keshvari (Eur. J. Oper. Res., 2017)

Segmented concave least squares: A nonparametric piecewise linear regression. - Abolfazl Keshvari (Eur. J. Oper. Res., 2018)