@ARTICLE { Rsds3685,
author = {Kubat, Miroslav}, 
title = {Floating approximation in time-varying knowledge bases}, 
journal = {Pattern Recognition Letters}, 
number = 	{(no. 4)}, 
volume = 10, 
pages = {223-227}, 
publisher = {Elsevier Science Inc.}, 
address = {Amsterdam, The Netherlands}, 
month = {October}, 
year = 1989, 
issn = {0167-8655}, 
abstract = {In this paper a new concept of Floating Approximation is introduced. It is based on Pawlaks theory of Rough Sets and the existence of "hidden attributes" in knowledge representation systems. After explaining the motivation, a simplified algorithm developed and implemented by the author is described. First experience is reported and some ideas for further research are suggested.}, 
keywords = {knowledge acquisition, rough sets, pattern recognition algorithm, floating approximation, }, 
}