Abstract: A method, apparatus, system, and computer program product for scheduling access to a set of locations. Workers assigned to the set of locations are identified by a set of processor unit. A collaboration network is identified by the set of processor units in which the collaboration network comprises nodes representing the workers and edges having weights representing interactions between the workers in which the interactions are based on communications information sent between the workers in a computer system. A schedule is generated by the set of processor units for the workers to work at the set of locations using the collaboration network.