The Evolution of Rough Sets 1970s-1981
Viktor Marek, Ewa Or{\l}owska, Ivo D\"untsch

TL;DR
This paper reviews the development of rough set theory from the 1970s to 1981, highlighting key research, sources of inspiration, and subsequent developments in rough sets and information systems.
Contribution
It provides a historical overview of rough set evolution, emphasizing foundational works and the progression of ideas up to 1981.
Findings
Identifies key publications and sources of inspiration for rough set theory.
Highlights developments in rough sets related to information systems after 1981.
Summarizes the growth of rough set research during the 1970s and early 1980s.
Abstract
In this note research and publications by Zdzis{\l}aw Pawlak and his collaborators from 1970s and 1981 are recalled. Focus is placed on the sources of inspiration which one can identify on the basis of those publications. Finally, developments from 1981 related to rough sets and information systems are outlined.
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Taxonomy
TopicsRough Sets and Fuzzy Logic
MethodsFocus
