Skowron, AndrzejStepaniuk, JarosławJankowski, AndrzejBazan, Jan G.Swiniarski, Ryszard2014-11-142014-11-142012http://repozytorium.ur.edu.pl/handle/item/668Artykuł opublikowano jako: Skowron, A., Stepaniuk, J., Jankowski, A., Bazan, J., G., Swiniarski, R., W.: Rough Set Based Reasoning About Changes, Fundamenta Informaticae, Volume 119, Number 3-4, p. 421-437 (2012). Oryginalna publikacja jest dostępna na stronie http://www.iospress.nl/journal/fundamenta-informaticae/ (The original publication is available at http://www.iospress.nl/journal/fundamenta-informaticae/ ).We consider several issues related to reasoning about changes in systems interacting with the environment by sensors. In particular, we discuss challenging problems of reasoning about changes in hierarchical modeling and approximation of transition functions or trajectories. This paper can also be treated as a step toward developing rough calculus.engrough setsreasoning about changeshierarchical modelinggranular computingapproximation spacerelation (function) approximationrough calculusintelligent systemscomputational financeforexalgorithmic tradingarticle