Article ID: | iaor19942316 |
Country: | United Kingdom |
Volume: | 1 |
Issue: | 1 |
Start Page Number: | 107 |
End Page Number: | 114 |
Publication Date: | Jan 1994 |
Journal: | International Transactions in Operational Research |
Authors: | Slowinski R., Pawlak Z. |
Keywords: | rough sets |
The paper shows that the rough set theory is a useful tool for analysis of decision situations, in particular multi-criteria sorting problems. It deals with vagueness in the representation of a decision situation, caused by granularity of the representation. The rough set approach produces a set of decision rules involving a reduced number of most important criteria. It does not correct vagueness manifested in the representation; instead, the rules produced are categorized into deterministic and non-deterministic. The set of decision rules explains the decision situation and may be used to support new decisions. An example illustrates the rough set analysis of a multi-criteria sorting problem.