Patent ID: 8412812
Filing Date: 2013-04-02
Classification: G06F,G06Q,H04L,H04N

Abstract:
1. A computer-implemented method comprising: accepting a set of one or more document identifiers; for each of the one or more document identifiers of the set, and using a client device characterized by a first combination of processor characteristics, memory characteristics, operating system characteristics, browser characteristics, client device location, request time of day, request day of week, and request time of year: determining a first elapsed time from an earliest time of requesting, using the client device characterized by the first combination, a first document identified by the set of one or more document identifiers to a latest time of completion of the rendering, using the client device characterized by the first combination, of a last document identified by the set of one or more document identifiers; for each of the one or more document identifiers of the set, and using a client device characterized by a second combination of processor characteristics, memory characteristics, operating system characteristics, browser characteristics, client device location, request time of day, request day of week, and request time of year: determining whether to send subsequent requests for documents having the same content as the document identified by the document identifier and including a different, second type of ad to a different, second serving facility based at least in part on a comparison of the first elapsed time to the second elapsed time and the first and second types of ads; wherein the determining is performed using one or more processors.