Paper Information

Journal:   JOURNAL OF OPERATIONAL RESEARCH AND ITS APPLICATIONS (JOURNAL OF APPLIED MATHEMATICS)   SUMMER 2010 , Volume 7 , Number 2 (25); Page(s) 43 To 53.
 
Paper: 

SYMMETRIC WEIGHT CONSTRAINTS IN DATA ENVELOPMENT ANALYSIS: SIMULTANEOUS SYMMETRY ON INPUT AND OUTPUT WEIGHTS IN THE CASE OF MULTIPLIER OUTPUT-ORIENTED CCR MODEL

 
 
Author(s):  ZHIANI REZAI H., MAHMODI O.*
 
* DEPARTMENT OF MATHEMATICS, ISLAMIC AZAD UNIVERSITY, SHAHRBABAK BRANCH, SHAHRBABAK, IRAN
 
Abstract: 
The Data Envelopment Analysis models are free to choose the best weights. Because of some problems on freedom of weights on input and output weights, we put some constraints. One kind of weight constraints that proposed to now is symmetric weight constraints. The symmetric weight constraints were explained by Dimitrov and Sutton in 2009 [3] . They decided to remove zero weights from input and output weights DMU under evaluation by new weight constraints that added to input and output oriented models of CCR. Symmetric Weight Assignment Technique which was suggested by Dimitrov and Sutton doesn' t affect on feasibility region of model and thus the model is always feasible. Also let the DMUs to choose symmetric the weights.
 
Keyword(s): DATA ENVELOPMENT ANALYSIS, SYMMETRY, SYMMETRIC WEIGHT RESTRICTIONS, SWAT SCORE, VIRTUAL WEIGHTS
 
References: 
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