On analytical complexity, Michael mentioned that this resulted in part from the need to support complex market targeting and frequency capping, and described an innovative algorithm AOL Advertising developed for the construction of price/volume curves that essentially instantiates their ad server decision model (the algorithm that determines which ad to serve in response to each impression request) in a Netezza.  The algorithm that AOL Advertising developed simultaneously resolves many thousands of complex targets across multiple campaigns in a very short period of time – generating multiple price/volume curves simultaneously with a single scan of the impression data.

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