We present a novel method of decomposition of an nxm binary matrix I into a Boolean product A@?B of nxk binary matrix A and a kxmbinary matrix B with k as small as possible.Expand

We study concept lattices with hedges. The principal aim is to control, in a parametrical way, the size of a concept lattice. The paper presents theoretical insight, comments, and examples. We show… Expand

We show a complete axiomatization of unary connectives interpreted by monotone and superdiagonal truth functions, so-called truth-depressing hedges.Expand

We present a fast bottom-up algorithm to compute all fixpoints of a fuzzy closure operator in a finite set over a finite chain of truth degrees, along with the partial order on the set of allfixpoints.Expand

The paper is an overview of recent developments concerning attribute implications in a fuzzy setting, which describe dependencies between attributes.Expand