The Outputs Estimation and Improvement of Efficiency on Interval Data in DEA

This paper develops the presented method by Yan et al. [Eur. J. Operat. Res. 136 (2002) 19]. In this paper, the methods are introduced for evaluating the outputs of Decision Making Units (DMUs) by using interval data in Data Envelopment Analysis (DEA), when some or all inputs in an interval decision making unit (IDMU), fully are increased