Abstract:
A system including a memory device storing instructions and servers that interact with the memory device and execute the instructions that cause the servers to perform operations including obtaining, using electronic cookies stored at client devices or pixel tags that are embedded in online resources, online activity performed at client devices; generating an online activity model using the online activity and the attributes of the users associated with the set of online activity, wherein the online activity model identifies different users as being likely to perform an activity in the online activity based on a similarity between the attributes of the users and attributes of the different users; determining, based on an application of the online activity model to the attributes, additional user identifiers of users that are likely to perform a same online activity by client devices as users corresponding to the user identifiers received from the third party.