Inclusion degrees of graded ill-known sets

  • Authors:

  • Masahiro Inuiguchi

  • Affiliations:

  • Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, Japan

  • Venue:
  • RSKT'12 Proceedings of the 7th international conference on Rough Sets and Knowledge Technology
  • Year:
  • 2012

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Abstract

The potential usefulness of graded ill-known sets in decision making problems is recently observed. In this paper, to develop the application of graded ill-known sets to decision making under uncertainty, we investigate the inclusion degrees of graded ill-known sets. Several kinds of inclusion degrees are defined. Although those degrees are defined on the power set, it is shown that, in some useful cases, they can be calculated easily in the universe. A simple example is given to demonstrate the usage of the inclusion degrees.