Abolfazl Keshvari

Advances on axiomatic nonparametric approaches to productivity and efficiency analysis

Abolfazl Keshvari, 2014 .

Solving cardinality constrained mean-variance portfolio problems via MILP

Pekka J. Korhonen, Markku Kallio, Nasim Dehghan Hardoroudi, 2017, Ann. Oper. Res..

Segmented concave least squares: A nonparametric piecewise linear regression

Abolfazl Keshvari, 2018, Eur. J. Oper. Res..

Discrete and integer valued inputs and outputs in data envelopment analysis

Timo Kuosmanen, Reza Kazemi Matin, Abolfazl Keshvari, 2015 .

A penalized method for multivariate concave least squares with application to productivity analysis

Abolfazl Keshvari, 2017, Eur. J. Oper. Res..

Stochastic non-convex envelopment of data: Applying isotonic regression to frontier estimation

Timo Kuosmanen, Abolfazl Keshvari, Timo Kuosmanen, 2013, Eur. J. Oper. Res..

An Extended Numeration Method for Solving Free disposal Hull Models in DEA

Nasim Dehghan Hardoroudi, Abolfazl Keshvari, Abolfazl Keshvari, 2008, Asia Pac. J. Oper. Res..