Temporal dynamics in rough sets based on coverings

  • Authors:
  • Davide Ciucci

  • Affiliations:
  • Dipartimento Di Informatica, Sistemistica e Comunicazione, Università di Milano, Milano, Italia

  • Venue:
  • RSKT'10 Proceedings of the 5th international conference on Rough set and knowledge technology
  • Year:
  • 2010

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Abstract

Given a covering of a universe, we study how time evolution of the covering influences rough approximations and covering reduction. The definition of time evolution considers two cases: new objects are added to the system or the granules are changed.