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A method of clustering ensemble is transforming the clustering ensemble problem into the clustering problem among objects in a nominal information table. The basic problem is to give a method which is used to calculate the distance between the nominal attribute value. In this paper, DILCA method is adopted to calculate the distance between the nominal attribute value. Using the correlation between...
In this paper, by the definitions of meet-irreducible element we discuss attribute characteristics and attribute reduction of formal contexts. We first propose an effective method to determine whether an element is meet-irreducible. Then present an approach to judge the indispensable attributes and the dispensable attribute, by which the attribute reduction approach of formal contexts is also obtained...
Fuzzy concept lattices reflect the uncertain relations of objects and attributes. This paper presents a definition of fuzzy concept based on Goguen implication operator in a fuzzy formal context and discusses its special properties. An approximate reasoning theory is introduced to fuzzy concept lattices, ?? - decision is denoted between condition attributes and decision attributes.
This study proposes the notion of a weakly closed label concept lattice of a formal context, and further applies it to the acquisition of compact decision implications from a decision formal context.
Formal decision context is a formal context with condition attributes and decision attributes, it is a generalization of formal context. For a weakly consistent formal decision context, we propose two methods to compress the condition lattice based on two new formal contexts, M-T class context and M-T extent context, respectively. These two compression methods are both based on decision lattice, and...
With the development of the mobile technology, smart phone plays a increasingly important role in people's life which makes it attractive to integrate the context-aware computing with the phone. Middleware is the most common method to support context-aware applications which use the context information to adapt interfaces to respond to user. But the relative weak computing power of the phone and the...
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