نتایج جستجو برای: 2fuzzy rough set

تعداد نتایج: 679025  

2009
Jerzy Błaszczyński Salvatore Greco Benedetto Matarazzo Roman Słowiński Marcin Szeląg

Journal: :The Journal of the Korea institute of electronic communication sciences 2015

The paper is devoted to concern a relationship between rough set theory and universal algebra. Notions of lower and upper rough approximations on an algebraic structure induced by an ideal are introduced and some of their properties are studied. Also, notions of rough subalgebras and rough ideals with respect to an ideal of an algebraic structure, which is an extended notion of subalgebras and ...

Journal: :international journal of data envelopment analysis 2013
g. tohidi p. valizadeh

for efficiency evaluation of some of the decision making units that have uncertain information, rough data envelopment analysis technique is used, which is derived from rough set theorem and data envelopment analysis (dea). in some situations rough data alter nonradially. to this end, this paper proposes additive rough–dea model and illustrates the proposed model by a numerical example.

Journal: :International Journal of Approximate Reasoning 2012

Journal: :Croatian Operational Research Review 2020

2016
Lynn D'eer Chris Cornelis Yiyu Yao

There exist two formulations of rough sets: the conceptual and computational one. The conceptual or semantical approach of rough set theory focuses on the meaning and interpretation of concepts, while algorithms to compute those concepts are studied in the computational formulation. However, the research on the former is rather limited. In this paper, we focus on a semantically sound approach o...

Journal: :International Journal of Approximate Reasoning 2014

Journal: :Filomat 2022

Relational data has become increasingly important in decision analysis recent years, and so mining knowledge which preserves relationships between objects is an topic. Graphs can represent the contains objects. Rough set theory provides effective tool for extracting knowledge, but it not sufficient to extract containing on In order extend application scope enrich rough theory, essential develop...

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