Abstract:
An advertisement effectiveness module determines a search lift value for each of a plurality of impressions of an advertisement. The search lift value is based on a relevancy of user searches before and after each advertisement impression. The advertisement effectiveness module calculates a first average search lift value for a subset of the plurality of impressions delivered in a first format and a second average search lift value for the subset of the plurality of impressions delivered in a second format. The advertisement effectiveness module compares the first average search lift value to the second average search lift value to determine an effectiveness of the first format and the second format.