Algebraic Aspects Of Attribute Dependencies In Information Systems

Authors:
Ivo Düntsch;Günther Gediga
Affiliations:
School of Information and Software Engineering, University of Ulster, Newtownabbey, N. Ireland, e-mail: I.Duentsch@ulst.ac.uk;Fachbereich Psychologie, Universität Osnabrück, Osnabrück, Germany, e-mail: ggediga@luce.psycho.uni-osnabrueck.de
Venue:
Fundamenta Informaticae
Year:
1997

Citing 6
Cited 0

How to build a knowledge space by querying an expert

Journal of Mathematical Psychology
Notes on the algebraic approach to dependence in information systems

Fundamenta Informaticae
On a problem concerning dependence spaces

Fundamenta Informaticae
On query procedures to build knowledge structures

Journal of Mathematical Psychology
Intelligent Decision Support: Handbook of Applications and Advances of the Rough Sets Theory

Intelligent Decision Support: Handbook of Applications and Advances of the Rough Sets Theory
Rough Sets: Theoretical Aspects of Reasoning about Data

Rough Sets: Theoretical Aspects of Reasoning about Data

Quantified Score

Hi-index	0.00

Visualization

Abstract

We exhibit some new connections between structure of an information system and its corresponding semilattice of equivalence relations. In particular, we investigate dependency properties and introduce a partial ordering of information systems over a fixed object set U which reflects the sub-semilattice relation on the set of all equivalence relations on U.