with regard to environmental issues, proper operation of wastewater treatment plants is of particular importance that in the case of inappropriate utilization, they will cause serious problems. in order to achieve a better and efficient control over the operation of an industrial wastewater treatment plant (wwtp), powerful mathematical tool can be used that is based on recorded data from some b...

A feature is a single measurable criterion to an observation of process. While knowledge discovery techniques successfully contribute many fields, however, the extensive required data processing could hinder performance these techniques. One main issues in dimensionality data. Therefore, focusing on reducing through eliminating insignificant attributes be considered one successful steps for rai...

The study of the hydric regime rainfall helps in management analysis and decision-making hydrographic basins, but a fundamental condition is need for continuous time series data. Therefore, this compared gap filling methods precipitation data validated them using robust statistical techniques. Precipitation from municipality Itirapina, which has four monitoring stations, were used. Four techniq...