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» Similarity issues in attribute implications from data with f...
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IRI
2006
IEEE
13 years 12 months ago
Replacing full rectangles by dense rectangles: Concept lattices and attribute implications
— Maximal full rectangles in tabular data are useful in several areas of data engineering. This paper presents a survey of results in which we replace “full rectangles” by ...
Radim Belohlávek, Vilém Vychodil
SIGMOD
2010
ACM
174views Database» more  SIGMOD 2010»
13 years 10 months ago
Sampling dirty data for matching attributes
We investigate the problem of creating and analyzing samples of relational databases to find relationships between string-valued attributes. Our focus is on identifying attribute...
Henning Köhler, Xiaofang Zhou, Shazia Wasim S...
IJIS
2007
97views more  IJIS 2007»
13 years 5 months ago
Attribute-oriented fuzzy generalization in proximity- and similarity-based relational database systems
article we investigate an attribute-oriented induction approach for acquisition of abstract knowledge from data stored in a fuzzy database environment. We utilize a proximity-based...
Rafal A. Angryk, Frederick E. Petry
IEEEICCI
2009
IEEE
14 years 18 days ago
An attribute reduction approach and its accelerated version for hybrid data
In practical issues, categorical data and numerical data usually coexist, and a unified data reduction technique for hybrid data is desirable. In this paper, an information measu...
Wei Wei, Jiye Liang, Yuhua Qian, Feng Wang
RSCTC
2000
Springer
197views Fuzzy Logic» more  RSCTC 2000»
13 years 9 months ago
Rough Set Approach to CBR
We discuss how Case Based Reasoning (CBR) (see e.g. [1], [4]) philosophy of adaptation of some known situations to new similar ones can be realized in rough set framework [5] for c...
Jan Wierzbicki