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CLA
2004
13 years 10 months 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
CLA
2006
13 years 10 months ago
An Algorithm to Find Frequent Concepts of a Formal Context with Taxonomy
Formal Concept Analysis (FCA) considers attributes as a non-ordered set. This is appropriate when the data set is not structured. When an attribute taxonomy exists, existing techni...
Peggy Cellier, Sébastien Ferré, Oliv...
CLA
2007
13 years 10 months ago
Concept Graphs as Semantic Structures for Contextual Judgment Logic
Abstract. This paper presents a mathematization of the philosophical doctrine of judgments as an extension of the mathematization of the philosophical doctrine of concepts develope...
Rudolf Wille
SAMT
2007
Springer
117views Multimedia» more  SAMT 2007»
14 years 2 months ago
A Region Thesaurus Approach for High-Level Concept Detection in the Natural Disaster Domain
Abstract. This paper presents an approach on high-level feature detection using a region thesaurus. MPEG-7 features are locally extracted from segmented regions and for a large set...
Evaggelos Spyrou, Yannis S. Avrithis
IV
1998
IEEE
114views Visualization» more  IV 1998»
14 years 27 days ago
Level of Data - A Concept for Knowledge Discovery in Information Spaces
alization of large volumes of abstract information requires mechanisms to support the user by knowledge discovering. Therefore we developed the level of data Therein the abstract ...
Miriam Lux