Fuzzy Optimization and Decision Making

, Volume 6, Issue 3, pp 199–219 | Cite as

Aggregation of ordinal information

  • Ronald R. Yager


Our interest is with the fusion of information which has an ordinal structure. Information fusion in this environment requires the availability of ordinal aggregation operations. Basic ordinal operations are first introduced. Next we investigate conjunctive and disjunction aggregations of ordinal information. The idea of a pseudo-log in the ordinal environment is presented. We discuss the introduction of a zero like point on an ordinal scale along with the related ideas of bipolarity (positive and negative values) and uni-norm aggregation operators. We introduce mean like aggregation operators as well weighted averages on a ordinal scale. The problem of selecting between ordinal models is considered.


Aggregation operations information fusion ordinal operators linguistic values uni-norm ordinal weighted average 


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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.Machine Intelligence InstituteIona CollegeNew RochelleUSA

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