Julio C. Acosta

Work place: Department of Computer, National University of the Northeast, Corrientes, (3400), Argentine

E-mail: julioaforever@hotmail.com


Research Interests: Computer systems and computational processes, Information Systems, Decision Support System, Data Structures and Algorithms


Julio C. Acosta is currently working as Professor in Department of Computer, National University of the Northeast, Corrientes, Argentine. He completed her Masters in Scientific Research Methodology from National University of Lanús, Argentine, and Specialist University Teaching from National University of the Northeast, Corrientes, Argentine. Her areas of interests are b-learning, decision support systems and fuzzy logic.

Author Articles
Aggregation Operators Review - Mathematical Properties and Behavioral Measures

By David L. La Red Martinez Julio C. Acosta

DOI: https://doi.org/10.5815/ijisa.2015.10.08, Pub. Date: 8 Sep. 2015

A problem that humans must face very often is that of having to add, melt or synthesize information, that is, combine together a series of data from various sources to reach a certain conclusion or make a certain decision. This involves the use of one or more aggregation operators capable to provide a collective preference relation. These operators must be chosen according to specific criteria taking into account the characteristic properties of each operator. Some conditions to be taken into account to identify them are the following: axiomatic strength, empirical setting, adaptability, numerical efficiency, compensation and compensation range, added behavior and scale level required of the membership functions. It is possible to establish a general list of possible mathematical properties whose verification might be desirable in certain cases: boundary conditions, continuity, not decreasing monotony, symmetry, idempotence, associativity, bisymmetry, self-distributivity, compensation, homogeneity, translativity, stability, ?-comparability, sensitivity and locally internal functions. For analyze the attitudinal character of the aggregation operator the following measures are studied: disjunction degree (orness), dispersion, balance and divergence. In this paper, a review of these issues is presented.

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