Patent ID: 8301626
Filing Date: 2012-10-30
Classification: G06N,G16H

Abstract:
1. A method for processing data associated with a data stream received by a data stream processing system, wherein the system comprises a plurality of processing elements, the method comprising the steps of: maintaining a portion of data associated with the data stream, wherein the maintained data comprises inputs to each processing element that contributed to an output of each processing element; in response to an alert generated by one of the processing elements, triggering a scheduler to determine when a pre-calculation of a prospective query related to the alert should be executed; and when the scheduler determines that a pre-calculation of a prospective query related to the alert should be executed, using at least a portion of the maintained data to determine a set of data that contributed to the alert such that the alert-contributing set of data can be used to respond to the prospective query upon arrival thereof, wherein determination of the alert-contributing set of data comprises: