EUROPEAN JOURNAL OF OPERATIONAL RESEARCH 181(2) 549-570 2007年9月 [査読有り]
This research theoretically explores the measurement of RTS (Returns to Scale) under a possible occurrence of multiple solutions in DEA (Data Envelopment Analysis). In this study, the occurrence of multiple solutions is classified into Type I and ...
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH 180(1) 459-471 2007年7月 [査読有り]
in aggregation for data envelopment analysis (DEA), a jointly measured efficiency score among inputs and outputs is desirable in performance analysis. A separate treatment between output-oriented efficiency and input-oriented efficiency is often n...
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH 176(3) 1918-1946 2007年2月 [査読有り]
This research theoretically explores the measurement of returns to scale (RTS), using a non-radial DEA (data envelopment analysis) model. A range-adjusted measure (RAM) is used as a representative of such non-radial models. Historically, a type of...
JOURNAL OF THE OPERATIONS RESEARCH SOCIETY OF JAPAN 48(1) 24-40 2005年3月 [査読有り]
In the typical type of ANP with a matrix U evaluating alternatives by criteria and a matrix W evaluating criteria by alternatives in the so-called supermatrix S, W is often said to be unstable. Here, we propose a method to revise W into a stable (...
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH 161(2) 536-544 2005年3月 [査読有り]
Two different types of inputs (variable inputs and quasi-fixed inputs) are incorporated into an analytical framework of dynamic data envelopment analysis (DEA). A unique feature of the quasi-inputs is that those are considered as outputs at the cu...
オペレーションズ・リサーチ : 経営の科学 = [O]perations research as a management science [r]esearch 57(6) 315-321 2012年6月
静岡大学工学部システム工学科で開講している授業科目「プログラムコンテスト」において,敢闘賞の決定を最短距離DEAによって行った.プログラムコンテストはグループで協調して自発的に学習に取り組むProblem Based Learningの1つであり,コンテスト形式は各グループが互いに競争して研鑽する仕掛けの1つである.競争の前提として,グループの能力が均一であることが望まれるが,グループ編成の実務上では実現困難である.どのグループも質の高いグループ活動を最後まで持続しコンテストに意欲的に参加...