Results 271 to 280 of about 24,615 (309)

On Yager's aggregation operators

[1992] Proceedings The Twenty-Second International Symposium on Multiple-Valued Logic, 2003
R.R. Yager (1988) introduced a special type of aggregation operator, OWA operators, and applied them to multicriterion decision-making. An alternative definition of such operators is given. and their structural properties are investigated in some detail. >
openaire   +1 more source

A View of Averaging Aggregation Operators

IEEE Transactions on Fuzzy Systems, 2007
This work was supported in part by Generalitat de Catalunya (AGAUR, 2004XT 00004) and by the Spanish MEC (projects CONSOLIDER INGENIO 2010 CSD2007-00004 and e-AEGIS TSI2007-65406-C03-02).
Vicenç Torra, Yasuo Narukawa
openaire   +2 more sources

Aggregation Operators and Additive Generators

International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems, 2001
Generated aggregation operators on continuous and discrete scales derived by means of a generating system are introduced. Linear generating systems are shown to be equivalent with the class of weighted means. The following classes are characterized: symmetric generated aggregation operators, idempotent generated aggregation operators, generated ...
openaire   +1 more source

ASYMPTOTICALLY IDEMPOTENT AGGREGATION OPERATORS

International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems, 2009
This paper deals with aggregation operators. A new form of idempotency, called asymptotic idempotency, is introduced. A critical discussion of the basic notion of aggregation operator, strictly connected with asymptotic idempotency, is provided. Some general construction methods of symmetric, asymptotically idempotent aggregation operators admitting a
openaire   +1 more source

Aggregation operators for selection problems

Fuzzy Sets and Systems, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Renata Smolíkova, Mark P. Wachowiak
openaire   +2 more sources

Generalized OWA Aggregation Operators

Fuzzy Optimization and Decision Making, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Kernel aggregation operators and their marginals

Fuzzy Sets and Systems, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Anna Kolesárová, Juliana Mordelová, E. Muel   +2 more
openaire   +2 more sources

Weak uninorm aggregation operators

Information Sciences, 2000
By weakening the identity condition for uninorms, a general class of associative aggregation operators, called weak uninorms, is introduced. It is proved that a continuous weak uninorm is a combination of a continuous t-norm and a continuous t-conorm through a median operator.
Yong-Ming Li 0001, Zhong-Ke Shi
openaire   +1 more source

Aggregate operators in probabilistic databases

Journal of the ACM, 2005
Though extensions to the relational data model have been proposed in order to handle probabilistic information, there has been very little work to date on handling aggregate operators in such databases. In this article, we present a very general notion of an aggregate operator and show how classical aggregation operators (such as COUNT, SUM, etc.) as ...
Robert B. Ross, V. S. Subrahmanian, John Grant   +2 more
openaire   +1 more source

Aggregation of Information and Aggregation Operators

2013
Huge amount of information one meets nowadays in a lot of areas of human activity makes information aggregation an extremely important and challenging issue. This chapter presents aggregation operators, a formal tool for aggregation of numerical information. Main types and properties of those operators will be discussed.
openaire   +1 more source