Abstract: An advertising system identifies users associated with an interest topic and generates a list of such users in which all advertising accounts are proportionately represented in the list. Such users are identified by recording user-page access data to each page in a cluster of pages associated with the interest topic. A list of user-account associations is generated by grouping the user-page access data by the advertising account associated with each page. The list is then optimized so a proportion of user-account associations for each advertising account is less than or equal to a predetermined threshold. This ensures that no one advertising account is overrepresented in the list. Using the optimized list, the advertising system can target users associated with the list with advertisements related to the interest topic.

Abstract: In one embodiment, a computing system receives a first set of location updates sent by a first user. Each location update corresponds to a user visit to a particular place, and each location update is determined by a mobile client device of the corresponding user via a first or a second location method. The computing system receives a second set of location updates sent by a second user, sent via only the first location method. A place-visit factor for the second user is calculated based on the total number of unique places visited by the second user within a particular period of time, a first number of places visited by the first user determined from location updates sent via the first location method, and a second number of places visited by the first user determined from location updates sent via the second location method.

Abstract: In one embodiment, a computing system receives a first set of location updates sent by a first user. Each location update corresponds to a user visit to a particular place, and each location update is determined by a mobile client device of the corresponding user via a first or a second location method. The computing system receives a second set of location updates sent by a second user, sent via only the first location method. A place-visit factor for the second user is calculated based on the total number of unique places visited by the second user within a particular period of time, a first number of places visited by the first user determined from location updates sent via the first location method, and a second number of places visited by the first user determined from location updates sent via the second location method.

Abstract: In one embodiment, a computing system receives a number of location updates sent by one or more users. These location updates may have different geographic locations, but refer to the same place or point of interest. Each location update corresponds to a user visit to the place or point of interest, and each location update is determined by a mobile client device of the corresponding user. The mobile client device may determine a location update by any one or more of a number of location methods available to the mobile client device. The computing system determines a ping compensation factor to be associated with the place or point of interest. The ping compensation factor is based on a total number of visits to the particular place, versus the subset of visits to the particular place determined by a first location method from the number of location methods.

Abstract: An advertising system identifies users associated with an interest topic and generates a list of such users in which all advertising accounts are proportionately represented in the list. Such users are identified by recording user-page access data to each page in a cluster of pages associated with the interest topic. A list of user-account associations is generated by grouping the user-page access data by the advertising account associated with each page. The list is then optimized so a proportion of user-account associations for each advertising account is less than or equal to a predetermined threshold. This ensures that no one advertising account is overrepresented in the list. Using the optimized list, the advertising system can target users associated with the list with advertisements related to the interest topic.

Abstract: In one embodiment, a computing system receives a number of location updates sent by one or more users. These location updates may have different geographic locations, but refer to the same place or point of interest. Each location update corresponds to a user visit to the place or point of interest, and each location update is determined by a mobile client device of the corresponding user. The mobile client device may determine a location update by any one or more of a number of location methods available to the mobile client device. The computing system determines a ping compensation factor to be associated with the place or point of interest. The ping compensation factor is based on a total number of visits to the particular place, versus the subset of visits to the particular place determined by a first location method from the number of location methods.

Abstract: In one embodiment, a computing device receives a location update corresponding to a user. The user corresponds to one or more demographic categories, and the location update is provided by one or more location methods which are implemented by a mobile device of the user. The computing device determines that the location update is associated with a visit to a particular place. The computing device determines a total number of visits to the particular place within a period of time for a particular demographic category of users. The computing device calculates a ping compensation factor based at least in part on a subset of the visits determined by a first location method, and the total number of visits. The computing device stores the ping compensation factor on a data store of a social-networking system.

Abstract: In one embodiment, a computing device receives a location update corresponding to a user. The user corresponds to one or more demographic categories, and the location update is provided by one or more location methods which are implemented by a mobile device of the user. The computing device determines that the location update is associated with a visit to a particular place. The computing device determines a total number of visits to the particular place within a period of time for a particular demographic category of users. The computing device calculates a ping compensation factor based at least in part on a subset of the visits determined by a first location method, and the total number of visits. The computing device stores the ping compensation factor on a data store of a social-networking system.