Abstract
The extended variable precision rough sets model incorporating asymmetric bounds is a generalisation of the original rough set theory. This paper introduces the (l, u)-quality graph, which elucidates the associated level of quality of classification (QoC), based on the choice of l and u values. A number of summary measures and lines are defined which pass over the domain of the (l, u)-quality graph. The defined lines are used to identify a choice of l and u values, based on retaining the underlying level of QoC from the whole (l, u)-quality graph.
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Beynon, M.J. (2002). Investigating the Choice of l and u Values in the Extended Variable Precision Rough Sets Model. In: Alpigini, J.J., Peters, J.F., Skowron, A., Zhong, N. (eds) Rough Sets and Current Trends in Computing. RSCTC 2002. Lecture Notes in Computer Science(), vol 2475. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45813-1_8
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DOI: https://doi.org/10.1007/3-540-45813-1_8
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