Abstract:
Provided are systems and methods for determining a multilocation predicted click-through rate (pCTR) for advertisements. The multilocation pCTR may be used to select and rank advertisements for advertisement auctions presented to potential advertisers. The multilocation pCTR may be based on a set of locations and probabilities for an estimation of a user's location, such by internet protocol (IP) address geolocation. The multilocation pCTR for an advertisement and a location set may then be determined from the single location pCTR for each location of the location set and the probability associated with each location.