الفهرس 
Basic concepts and PreliminariesOnly 14 pages are availabe for public view
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Abstract
Since most life problems do not depend on equivalence relations only, but most of them depend on general relations in controversial issues. from this standpoint, how to deal with some general relations using the concepts of extrapolation group is presented. Then a generalization of some of those relations is presented in this thesis and how to deal with them using topological concepts: by presenting the thesis entitled ”Generalized Topological Applications in Information Systems” The aim is to use generalized topologies for service, analysis, and decision-making in information systems.It is organized as follows:The first chapter: Basic concepts and Preliminaries.The second chapter: Attribute Reduction via Strength of Rules and Similarity Matrix.Third chapter: Similarity Measure for Decision Making. Fourth Chapter: Conclusions and Future works.