Abstract
The theory introduced, presented and developed in this paper, is concerned with Rough Concept Analysis. This theory is a synthesis of the theory of Rough Sets pioneered by Zdzislaw Pawlak [5] with the theory of Formal Concept Analysis pioneered by Rudolf Wille [6]. The central notion in this paper of a rough formal concept combines in a natural fashion the notion of a rough set with the notion of a formal concept — to use a slogan: “rough set + formal concept = rough formal concept”. A related paper [3] using distributed constraints provides a synthesis of the two important data modeling techniques: conceptual scaling of Formal Concept Analysis, and Entity-Relationship database modeling. A follow-up paper [2] will extend rough concept analysis from formal contexts to distributed constraints.
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