The ordered weighted geometric averaging operators

The ordered weighted averaging (OWA) operator was introduced by Yager.(1) The fundamental aspect of the OWA operator is a reordering step in which the input arguments are rearranged in descending order. In this article, we propose two new classes of aggregation operators called ordered weighted geometric averaging (OWGA) operators and study some desired properties of these operators. Some methods for obtaining the associated weighting parameters are discussed, and the relationship between the OWA and DOWGA operators is also investigated. (C) 2002 Wiley Periodicals, Inc.