This book does not have the ambition to provide an exhaustive descr iption of the theory of rough paths, but rather to complement the existing literature on the subject. As a consequence, there are a number of aspects that we chose not to touch, or
Variable precision rough set (VPRS) is an extension of rough settheory (RST). By settingthreshold valueβ, VPRS looses the strict definition of approximate boundary in RST. Confident threshold value forβis discussed and the method for deriving decisi
