1. A system for incident detection, comprising: a network including at least one detector for detecting events in the network; a detection module capable of processing data from the at least one detector; and a calibration module capable of calibrating a plurality of bands for the incident detection based on a plurality of decision variables, wherein: the plurality of bands define thresholds that are time-varying for all measurement locations in the network; and the thresholds are estimated using nonparametric quantile regression.