**Commenced**in January 2007

**Frequency:**Monthly

**Edition:**International

**Paper Count:**31093

##### Decision Making with Dempster-Shafer Theory of Evidence Using Geometric Operators

**Authors:**
José M. Merigó,
Montserrat Casanovas

**Abstract:**

We study the problem of decision making with Dempster-Shafer belief structure. We analyze the previous work developed by Yager about using the ordered weighted averaging (OWA) operator in the aggregation of the Dempster-Shafer decision process. We discuss the possibility of aggregating with an ascending order in the OWA operator for the cases where the smallest value is the best result. We suggest the introduction of the ordered weighted geometric (OWG) operator in the Dempster-Shafer framework. In this case, we also discuss the possibility of aggregating with an ascending order and we find that it is completely necessary as the OWG operator cannot aggregate negative numbers. Finally, we give an illustrative example where we can see the different results obtained by using the OWA, the Ascending OWA (AOWA), the OWG and the Ascending OWG (AOWG) operator.

**Keywords:**
Decision Making,
Uncertainty,
OWA operator,
Aggregation operators,
Dempster-
Shafer theory of evidence,
OWG
operator

**Digital Object Identifier (DOI):**
doi.org/10.5281/zenodo.1079618

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