{{No footnotes, date=April 2009
Rough fuzzy hybridization is a method of hybrid intelligent system or
soft computing
Soft computing is a set of algorithms,
including neural networks, fuzzy logic, and evolutionary algorithms.
These algorithms are tolerant of imprecision, uncertainty, partial truth and approximation.
It is contrasted with hard computing: al ...
, where Fuzzy set theory is used for linguistic representation of patterns, leading to a ''fuzzy granulation'' of the feature space.
Rough set
In computer science, a rough set, first described by Polish computer scientist Zdzisław I. Pawlak, is a formal approximation of a crisp set (i.e., conventional set) in terms of a pair of sets which give the ''lower'' and the ''upper'' approximati ...
theory is used to obtain dependency rules which model informative regions in the granulated feature space.