Abstract: Methods, systems, and apparatus, including computer program products, in which one or more webpages are identified based on one or more signals associated with an advertisement, a content of each of the webpages, and a property associated with the advertisement, and a performance measure is determined for the advertisement for each of the webpages. An auction score is calculated for the advertisement for each of the webpages based on the performance measure and a bid associated with the advertisement.

Abstract: A publication evaluation subsystem generates publication scores for publications. Each publication score is indicative of an expected performance for content that is presented with the publication. The publication scores are generated relative to a baseline performance measure. The baseline performance measure has a value that is indicative of an expected performance of any selected content presented with any publication in the content network. More than one publication score can be generated for each publication, with each publication score being indicative of the performance of a sub-group of content items that are presented with the publication. The sub-group of content items can include content items that each share a common characteristic. For example, a publication score can be generated for a sub-group of content items that are associated with common targeting criteria (e.g., keywords).

Abstract: Among other disclosed subject matter, a computer-implemented method for modifying an estimate value includes determining a first estimate value based on a plurality of values relating to a first entity. The method includes determining a second estimate value for at least one second entity identified as a peer of the first entity. The method includes modifying the first estimate value using the second estimate value.

Abstract: Among other disclosed subject matter, a computer-implemented method for modifying an estimate value includes determining a first estimate value based on a plurality of values relating to a first entity. The method includes determining a second estimate value for at least one second entity identified as a peer of the first entity. The method includes modifying the first estimate value using the second estimate value.