World Wide Web has become the largest pool of knowledge in terms volume, but web users still continue to have difficulty finding relevant information. Two issues influence output information retrieval (IR) systems: first, overload and second, vagueness imprecision document representations as well user need. Rough set theory (RST) proved successful tackling ambiguous, uncertain, imprecise, or in...

Article history: Received February 25, 2016 Received in revised format: March 28, 2016 Accepted June 26, 2016 Available online June 26 2016 Weather forecasting is essential and demanding scientific task of meteorological services across the world. It is a complex procedure that includes many specific technological field of study. The prediction is intricate process in meteorology because all de...