(alfa, beta) reduction of decision table : a rough approach

• Autorzy: Shrabonti G. , Ranjit B. , Alam S. S.
• Języki publikacji: EN

Abstrakty

EN

In this paper, we generalise Pawlak's rough approach for simplifying a decision table in an information system. We consider an information system where attribute values are not always quantitative, rather subjective having vague or imprecise meanings. Some objects may have attribute values which are almost identical, i.e., they can't be distinguished clearly by the attributes. Considering this observation, we present a generalised method for reduction of decision table for different choice values of alfa and beta, a being for condition attributes and beta for decision attributes where Alfa, Beta € [0, 1]. For a = 1 and Beta = 1, the method reduces to Pawlak's method.

Słowa kluczowe

EN

decision table; reduction; information system

• Wydawca: Wydawnictwo Politechniki Poznańskiej
• Czasopismo: Foundations of Computing and Decision Sciences
• Rocznik: 2001
• Tom: Vol. 26, No. 4
• Strony: 273--281
• Opis fizyczny: Bibliogr. 6 poz.

Twórcy

autor

Shrabonti G.

autor

Ranjit B.

autor

Alam S. S.

• Department of Mathematics, Indian Institute of Technology, Kharagpur - 721302, India,