RT Conference Proceedings T1 Spectral lattices of (R)over-bar(max),(+)-Formal contexts A1 Valverde Albacete, Francisco José A1 Peláez Moreno, Carmen AB In [13] a generalisation of Formal Concept Analysis was introduced with data mining applications in mind, 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 K-Formal Concept Analysis, resting on a crucial parameter, the degree of existence of the object-attribute pairs phi. In this paper we introduce the spectral lattice of a concrete instance of K-Formal Concept Analysis, as a further means to clarify the structural and the K-Concept Lattices and the choice of p. Specifically, we develop techniques to obtain the join- and meet-irreducibles of a (R) over bar (max),+-Concept Lattice independently of phi and try to clarify its relation to the corresponding structural lattice. PB Springer SN 978-3-540-78136-3 SN 0302-9743 (Print) SN 1611-3349 (Online) YR 2008 FD 2008-02-15 LK https://hdl.handle.net/10016/8787 UL https://hdl.handle.net/10016/8787 LA eng NO Proceeding of: 6th International Conference, ICFCA 2008, Montreal, Canada, February 25-28, 2008 DS e-Archivo RD 1 jul. 2024