Fuzzy set uncertainty in a rough object oriented database

摘要

This paper introduces and formally defines a fuzzy rough object-oriented database (OODB) model based on a formal framework using an algebraic type system and formally defined constraints. This generalized model incorporates both rough set and fuzzy set uncertainty, while remaining compliant with object-oriented database standards set forth by the Object Database Management Group. It therefore better models the uncertainty of real-world enterprises than conventional databases through the use of indiscernibility and fuzzy membership values, especially those enterprises built upon spatial data.