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Keshvari, Abolfazl; Kuosmanen, Timo - In: European journal of operational research : EJOR 231 (2013) 2, pp. 481-491

Persistent link: https://www.econbiz.de/10009785475

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

Keshvari, Abolfazl; Kuosmanen, Timo - In: European journal of operational research : EJOR 231 (2013) 2, pp. 481-491

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Segmented concave least squares : a nonparametric piecewise linear regression

Keshvari, Abolfazl - In: European journal of operational research : EJOR 266 (2018) 2, pp. 585-594

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

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Solving cardinality constrained mean-variance portfolio problems via MILP

Hardoroudi, Nasim Dehghan; Keshvari, Abolfazl; Kallio, … - 2017

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AN EXTENDED NUMERATION METHOD FOR SOLVING FREE DISPOSAL HULL MODELS IN DEA

KESHVARI, ABOLFAZL; HARDOROUDI, NASIM DEHGHAN - In: Asia-Pacific Journal of Operational Research (APJOR) 25 (2008) 05, pp. 689-696

Production Possibility Set (PPS) based on Free Disposal Hull assumption describes the minimum PPS for evaluating efficiency of DMUs and presents one reference for each unit. Tulkens (Journal of Productivity Analysis, 4(1), 183–210) proposed a mathematical program and a procedure for solving...

Persistent link: https://www.econbiz.de/10005047144