Abstract: This document describes computer-implemented systems, methods, devices, and other techniques for reducing the amount of redundant third-party content that is transported over a network for presentation with an electronic document. In some implementations, a computing system includes a deduplication apparatus that determines, in response to identifying that a particular instance of third-party content has previously been selected for display in a particular presentation of the electronic document, and based at least on a display characteristic of the electronic document, whether one or more other instances of third-party content that are deemed redundant to the particular instance of third-party content are eligible for selection responsive to the request.

Abstract: This document describes computer-implemented systems, methods, devices, and other techniques for reducing the amount of redundant third-party content that is transported over a network for presentation with an electronic document. In some implementations, a computing system includes a deduplication apparatus that determines, in response to identifying that a particular instance of third-party content has previously been selected for display in a particular presentation of the electronic document, and based at least on a display characteristic of the electronic document, whether one or more other instances of third-party content that are deemed redundant to the particular instance of third-party content are eligible for selection responsive to the request.

Abstract: This document describes computer-implemented systems, methods, devices, and other techniques for reducing the amount of redundant third-party content that is transported over a network for presentation with an electronic document. In some implementations, a computing system includes a deduplication apparatus that determines, in response to identifying that a particular instance of third-party content has previously been selected for display in a particular presentation of the electronic document, and based at least on a display characteristic of the electronic document, whether one or more other instances of third-party content that are deemed redundant to the particular instance of third-party content are eligible for selection responsive to the request.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for ranking content items. In one aspect, a method includes identifying, for a content item, a bid value specifying an amount a content item provider is willing to pay for user interaction with the content item. A predicted performance measure is identified for the content item. The predicted performance measure is adjusted based on a weighting factor for the content item. The weighting factor for the content item is indicative of confidence that the predicted performance measure will match an actual performance measure for the content item and can be different than a weighting factor for another content item identified for inclusion in a ranking with the content item. A rank score is determined for the content item using the bid value and adjusted predicted performance measure. The content item is provided based on the rank score.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for ranking content items. In one aspect, a method includes identifying, for a content item, a bid value specifying an amount a content item provider is willing to pay for user interaction with the content item. A predicted performance measure is identified for the content item. The predicted performance measure is adjusted based on a weighting factor for the content item. The weighting factor for the content item is indicative of confidence that the predicted performance measure will match an actual performance measure for the content item and can be different than a weighting factor for another content item identified for inclusion in a ranking with the content item. A rank score is determined for the content item using the bid value and adjusted predicted performance measure. The content item is provided based on the rank score.

Abstract: Methods, systems, and apparatus include computer programs encoded on a computer-readable storage medium, including a method for providing content. The method includes receiving a request for content for a block and determining a variable number of content items to be responsive to the request, including determining an efficiency for each of a number of permutations of allocations of eligible content items. The efficiency is a summation of individual values associated with content sponsors proposed to be included in the block for a given permutation. A price is established to be charged to each content sponsor associated with a permutation having a highest efficiency. The establishing includes, for each position in a determined highest efficiency permutation: determining a total increase of efficiency associated with all other content sponsors when removing a content sponsor associated with a given position. The eligible content items associated with the determined permutation are provided.