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» Similarity relations in concept lattices
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CLA
2004
14 years 8 days ago
Fast Factorization of Concept Lattices by Similarity: Solution and an Open Problem
An important problem in applications of formal concept analysis is a possibly large number of clusters extracted from data. Factorization is one of the methods being used to cope w...
Radim Belohlávek, Jiri Dvorak, Jan Outrata
ICFCA
2009
Springer
13 years 8 months ago
A Concept Lattice-Based Kernel for SVM Text Classification
Abstract. Standard Support Vector Machines (SVM) text classification relies on bag-of-words kernel to express the similarity between documents. We show that a document lattice can ...
Claudio Carpineto, Carla Michini, Raffaele Nicolus...
ICCBR
2009
Springer
13 years 8 months ago
On Similarity Measures Based on a Refinement Lattice
Abstract. Retrieval of structured cases using similarity has been studied in CBR but there has been less activity on defining similarity on description logics (DL). In this paper w...
Santiago Ontañón, Enric Plaza
CLA
2007
14 years 9 days ago
Representing Numeric Values in Concept Lattices
Formal Concept Analysis is based on the occurrence of symbolic attributes in individual objects, or observations. But, when the attribute is numeric, treatment has been awkward. In...
John L. Pfaltz
CORR
2006
Springer
98views Education» more  CORR 2006»
13 years 11 months ago
Faster Algorithms for Constructing a Concept (Galois) Lattice
In this paper, we present a fast algorithm for constructing a concept (Galois) lattice of a binary relation, including computing all concepts and their lattice order. We also prese...
Vicky Choi