Juan Jose Blanco and Lina Khatib
This research statement describes work in progress to enhance the performance of the Ground Processing Scheduling System (GPSS). The GPSS is a constraintbased scheduler that, using an anytime algorithm, deals with three kinds of constraints: temporal, resource, and configuration. It starts with a complete schedule that may have some constraint violations (conflicts) and gradually improves the schedule by reducing the violations. The objective is to optimize the schedule in terms of constraint violations and resource utilization.