US Patent 8359290 Smart sync—refreshing application state based on user migration patterns

A method of synchronizing data is provided. An embodiment of the method includes receiving, at a server, information identifying a detected user interaction with a device, determining, at the server, a probability that a user will access a service provided by the server using the device at a time, and generating, at the server, a session signature based on the determined probability, wherein the session signature is used by the device to generate refresh requests associated with the service.