Three-Way Decisions With Dea Approach

In this paper, we set up a data envelopment analysis (DEA) based three-way decision approach to solve the "multi-input and multi-output" problem when the decision attributes are "more than one" in rough sets. The estimation of production frontiers of DEA, is used to generate the three regions by three-way decisions: DEA efficiency region, weak DEA efficiency region and DEA inefficiency region, respectively. An empirical study of company efficiency evaluation is employed to validate the reasonability and effectiveness of the proposed method.