In one embodiment, a reactive filtration method includes continuously regenerating a reactive filter media while simultaneously filtering contaminants from fluid flowing through the filter media. A predictive model is trained to determine a probability of propagation of information on the social network using both positive and negative information propagation feedback, which may be collected while monitoring the social network over a desired period of time for information propagation. The host computer matches the unique identifier to a second logic set and a plug-in module. One embodiment of the invention provides a method for regulating working fluid flow in a vapor compression system including a compressor. Measured characteristics of the upstream signals can include: propagation time, frequency, power, and spectral characteristics.