Abstract: A content item generation system which implements techniques for selecting and identifying content items to return in response to a request is described. For example, the content item generation system may separate requirements included with a request into first and second sets of requirements. The first set of requirements may be used to identify which content items or content item campaigns may be suitable to respond to the request. The second set of requirements may be used to determine whether items associated with the selected content items or content item campaigns correspond to technical requirements specified in the request.

Abstract: A media item cache manager system which implements techniques for efficiently using cache memory to respond to requests. The cache memory may include information on items along with a status indicator for each of the items, indicating different status information. Some examples of possible status indicators include valid, invalid, or in-progress indicators.

Abstract: A system for conserving resources in a multi-channel control system environment is provided. A resource limit that is associated with a content delivery campaign is determined. A prediction of resource usage that is associated with the content delivery campaign and a first content delivery channel is determined. A content request is received through a second content delivery channel that is different than the first content delivery channel. In response, based on data contained within the content request, the content delivery campaign is identified. Also, based on the resource limit and the prediction of resource usage associated with the content delivery campaign and the first content delivery channel, it is determined whether to respond to the content request with data associated with the content delivery campaign.

Abstract: In various example embodiments, a system and method for transmitting data to select users are presented. User information corresponding to users of a web service is accessed. Scores for each of the user is calculated based on the accessed user information. Select users of the web service are identified based on the calculated scores. A data object is generated and then transmitted to the select users.

Abstract: In various example embodiments, a system and method for transmitting data to select users are presented. User information corresponding to users of a web service is accessed. Scores for each of the user is calculated based on the accessed user information. Select users of the web service are identified based on the calculated scores. A data object is generated and then transmitted to the select users.

Abstract: Techniques are provided for building a unified model for selecting content items of different types in response to receiving electronic content requests transmitted over a network. In one technique, in response to a request, multiple content items are identified. The multiple content items include a first content item of a first type and a second content item of a second type. A first engagement value that indicates a first level of engagement of an online resource for content items of the first type is determined. A first predictive user selection rate is generated for the first content item based on the first engagement value. A second predictive user selection rate is generated for the second content item. The multiple content items are ranked based, at least in part, on the predictive user selection rates. A particular content item is then selected based on the predictive user selection rates.

Abstract: A content item generation system which implements techniques for selecting and identifying content items to return in response to a request is described. For example, the content item generation system may separate requirements included with a request into first and second sets of requirements. The first set of requirements may be used to identify which content items or content item campaigns may be suitable to respond to the request. The second set of requirements may be used to determine whether items associated with the selected content items or content item campaigns correspond to technical requirements specified in the request.

Abstract: A content item generation system which implements techniques for selecting and identifying content items to return in response to a request is described. For example, the content item generation system may separate requirements included with a request into first and second sets of requirements. The first set of requirements may be used to identify which content items or content item campaigns may be suitable to respond to the request. The second set of requirements may be used to determine whether items associated with the selected content items or content item campaigns correspond to technical requirements specified in the request.

Abstract: A media item cache manager system which implements techniques for efficiently using cache memory to respond to requests. The cache memory may include information on items along with a status indicator for each of the items, indicating different status information. Some examples of possible status indicators include valid, invalid, or in-progress indicators.

Abstract: A system for conserving resources in a multi-channel control system environment is provided. A resource limit that is associated with a content delivery campaign is determined. A prediction of resource usage that is associated with the content delivery campaign and a first content delivery channel is determined. A content request is received through a second content delivery channel that is different than the first content delivery channel. In response, based on data contained within the content request, the content delivery campaign is identified. Also, based on the resource limit and the prediction of resource usage associated with the content delivery campaign and the first content delivery channel, it is determined whether to respond to the content request with data associated with the content delivery campaign.

Abstract: In various example embodiments, a system and method for transmitting data to select users are presented. User information corresponding to users of a web service is accessed. Scores for each of the user is calculated based on the accessed user information. Select users of the web service are identified based on the calculated scores. A data object is generated and then transmitted to the select users.