Abstract
In [13] a generalisation of Formal Concept Analysis was introduced with data mining applications in mind, \(\mathcal K\)-Formal Concept Analysis, where incidences take values in certain kinds of semirings, instead of the standard Boolean carrier set. Subsequently, the structural lattice of such generalised contexts was introduced in [15], to provide a limited equivalent to the main theorem of \(\mathcal K\)-Formal Concept Analysis, resting on a crucial parameter, the degree of existence of the object-attribute pairs ϕ. In this paper we introduce the spectral lattice of a concrete instance of \(\mathcal K\)-Formal Concept Analysis, as a further means to clarify the structural and the \(\mathcal K\)-Concept Lattices and the choice of ϕ. Specifically, we develop techniques to obtain the join- and meet-irreducibles of a \(\mathbb{\overline R}_{\rm max,+}\)-Concept Lattice independently of ϕ and try to clarify its relation to the corresponding structural lattice.
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Valverde-Albacete, F.J., Peláez-Moreno, C. (2008). Spectral Lattices of \(\mathbb{\overline R}_{\rm max,+}\)-Formal Contexts. In: Medina, R., Obiedkov, S. (eds) Formal Concept Analysis. ICFCA 2008. Lecture Notes in Computer Science(), vol 4933. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-78137-0_9
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DOI: https://doi.org/10.1007/978-3-540-78137-0_9
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