A study on DEA Models

1.我广泛研究了各种DEA模型的求解过程，提出了一种获取高效dmu强互补解的参数化方法2。关于锥比模型，我提出了几种确定潜在虚拟乘数方向的策略。讨论了顶点枚举算法和内点线性规划法的应用。我发现了一种新的方法来确定BCC低效dmu的规模特征回报。这个方法比以前的方法简单得多。我和w.w.库珀一起调查了缉毒局的最新进展。研究了各种DEA模型与数据特征的匹配问题，提出了一种新的Additive Model效率度量方法。

1.I studied solution procedures of various DEA models extensively and proposed a parametric method for obtaining a strongly complementary solution for efficient DMUs.2.With regard to Cone-Ratio Model, I proposed several strategies for deciding potential virtual multiplier directions. Also, uses of the vertex enumeration algorithm and interior point linear programming method were discussed.3.I found a new method for deciding returns to scale characteristics of BCC inefficient DMUs. The method is much simpler than previous ones.4.I surveyed recent developments in DEA with W.W.Cooper.5.I studied matching issues of various DEA models with data characteristics and proposed a new efficiency measure for Additive Model.