Abstract
We present a language for defining new rough relations from given decision tables and we show how to query relations defined in this way. The language provides a uniform formalism for expressing rough data together with background knowledge, and for capturing well-known techniques such as the variable precision rough set model. Its essential feature is the use of quantitative measures, such as support, strength and accuracy.
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
References
Pawlak, Z.: Rough sets. International Journal of Information and Computer Science 11, 341–356 (1982)
Vitória, A., Damásio, C.V., Małuszyński, J.: Query answering for rough knowledge bases. In: Wang, G., Liu, Q., Yao, Y., Skowron, A. (eds.) RSFDGrC 2003. LNCS (LNAI), vol. 2639, pp. 197–204. Springer, Heidelberg (2003)
Vitória, A., Damásio, C.V., Małuszyński, J.: From rough sets to rough knowledge bases. Fundamenta Informaticae 57, 215–246 (2003)
Doherty, P., Lukaszewicz, W., Szalas, A.: CAKE: A Computer Aided Knowledge Engineering Technique. In: Proc. of the 15th European Conference on Artificial Intelligence (ECAI 2002), pp. 220–224. IOS Press, Amsterdam (2002)
Ziarko, W.: Variable precision rough set model. Journal of Computer and Systems Science 46, 39–59 (1993)
Komorowski, J., Øhrn, A.: Modelling prognostic power of cardiac tests using rough sets. Journal of Artificial Intelligence in Medicine 15, 167–191 (1999)
Øhrn, A., Komorowski, J.: ROSETTA: A rough set toolkit for analysis of data. In: Proc. of Fifth International Workshop on Rough Sets and Soft Computing (RSSC 1997), vol. 3, pp. 403–407 (1997)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2004 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Vitória, A., Damásio, C.V., Małuszyński, J. (2004). Toward Rough Knowledge Bases with Quantitative Measures. In: Tsumoto, S., Słowiński, R., Komorowski, J., Grzymała-Busse, J.W. (eds) Rough Sets and Current Trends in Computing. RSCTC 2004. Lecture Notes in Computer Science(), vol 3066. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-25929-9_17
Download citation
DOI: https://doi.org/10.1007/978-3-540-25929-9_17
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-22117-3
Online ISBN: 978-3-540-25929-9
eBook Packages: Springer Book Archive