A computer-implemented method modifies a hardware device based on a time series of data. One or more processors standardize a time series of data received from sensors that are monitoring a hardware device. The processor(s) determine a time delta that measures how long a disruption in the time series lingers after an event that is detected by the sensors, and use the time delta to establish time ranges before, during and after each event. The processor(s) determine which events represented by the time series of data are significant, and then reduce a number of significant events described by the time series of data to a predefined level by removing events that have tags not found associated with other events in the time series of data to generate a modified time series of data, which is used to modify the hardware device.