data envelopment analysis (dea)

Enhancing Top Efficiency by Minimizing Second-Best Scores: A Novel Perspective on Super Efficiency Models in DEA

  • Tomonari Kitahara
  • Takashi Tsuchiya
    • Categories Applications - OR and Management Sciences, Linear, Cone and Semidefinite Programming, Optimization in Data Science Tags , ,

    In this paper, we reveal a new characterization of the super-efficiency model for Data Envelopment Analysis (DEA). In DEA, the efficiency of each decision making unit (DMU) is measured by the ratio the weighted sum of outputs divided by the weighted sum of inputs.In order to measure efficiency of a DMU, ${\rm DMU}_j$, say, in CCR … Read more

    Joint Variable Selection for Data Envelopment Analysis via Group Sparsity

  • Zhiwei (Tony) Qin
  • Irene Song
    • Categories Applications - OR and Management Sciences, Convex Optimization Tags , , ,

    This study develops a data-driven group variable selection method for data envelopment analysis (DEA), a non-parametric linear programming approach to the estimation of production frontiers. The proposed method extends the group Lasso (least absolute shrinkage and selection operator) designed for variable selection on (often predefined) groups of variables in linear regression models to DEA models. … Read more