9. The media of claim 6 , wherein the sensor data comprises one or more streams of real-time streaming sensor data.
6. One or more computer-readable non-transitory storage media embodying software that is configured when executed to: access a set of sensor data that comprises: a plurality of sensor data aggregated together from a plurality of sensors in the sensor network; one or more time stamps for the sensor data; and metadata for the sensor data identifying one or more pre-determined attributes of the sensor data; generate an index of the set of sensor data according to a multi-dimensional array configured for querying of the set of sensor data along with a plurality of other sets of sensor data, one or more first ones of the dimensions of the multi-dimensional array comprising time and one or more second ones of the dimensions of the multi-dimensional array comprising one or more of the pre-determined sensor-data attributes; classify the sensor data; based on the classification, generate keywords for the sensor data using the metadata; form a keyword frequency distribution by combining the keywords for different time windows; summarize the sensor data by eigenvalues of an array associated with the sensor data in a keyword space and generate, using the eigenvalues, a set of searchable sensor data that represents the sensor data and has a smaller size than the sensor data; communicate the index of the set of sensor data in response to one or more queries of the set of sensor data along with a plurality of other sets of sensor data, and wherein generating the index comprises inputting the sensor data to a state machine with programmable rule criteria that is configured to drop sensor data that fail to meet the rule criteria as programmed.