The study of the interval-valued contexts

The aim of this paper is to contribute to the interval-valued Fuzzy Data Analysis proposing a new method based on the Formal Concept Analysis. We develop a theoretical model that analyzes the interval-valued information that arises from the opinion of a group of experts about the relationship between a set of objects and a set of attributes, and we want to analyze this information from the point of view of the Formal Concept Analysis. To do this, we are going to modelize a new L-Fuzzy concept theory using some results about multisets and expertons. Finally, we include a simple example to illustrate it by showing its potential applications. (C) 2001 Elsevier Science B.V. All rights reserved.