Selective delivery of content items

摘要

Systems, methods, and computer programs encoded on a computer-readable storage medium for allocating a minimum number of impressions to a content item in order to satisfy a delivery goal for the content item during a certain period of time are described. In some implementations, a satisfaction index (SI) that reflects the degree to which a content selection service is on pace to meet a delivery goal for a content item within some period can be used. The SI can be used to compare the number of impressions that have been allocated to the content item thus far in a period to the delivery or allocation goal for the content item. A content selection service may determine scores for impression allocations based on both an estimate of value and the SI for a candidate content item in order to balance the goals of meeting delivery goals and optimizing impression inventory value.