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Ranking Schemas by Focus: A Cognitively-Inspired Approachhe notion of focus as .. This definition of focus is adapted from the notion of ., as first defined in cognitive psychology. In turn, this notion is formalized based on a set of knowledge metrics that, for any given focus, rank knowledge base schemas according to their quality. We apply the proposed

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Improving the Performance of Lindig-Style Algorithms with Empty Intersectionsllows one to express relationships among formal concepts in a concise and comprehensible form. One may enumerate direct neighbors of each formal concept and build a concept lattice or its line diagram in a straightforward way. This is the main idea behind the algorithm proposed by Lindig. This algor

MELON

Quantifying the Conceptual Error in Dimensionality Reductionies on data dimensions and ultimately influence any decision-making processes. Therefore, a wide variety of reduction procedures are in use, each pursuing different objectives. A so far not considered criterion is the conceptual continuity of the reduction mapping, i.e., the preservation of the conc

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Conceptual Relevance Index for Identifying Actionable Formal Conceptsgness indices defined in Formal Concept Analysis may provide an effective relevance evaluation in several situations, they frequently give inadequate results when faced with massive formal contexts (and concept lattices), and in the presence of irrelevant concepts. In this paper, we introduce the .

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Packing Problems, Dimensions and the Tensor Product of Complete Latticese for . and can be seen as an inner dimension. We show that this embedding problem translates to a set packing problem on the level of formal contexts. From this point of view, similarities to graph theoretic parameters emerge, which lead to a lattice theoretical interpretation of the clique number

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