A Supermodular Relaxation for Scheduling with Release Dates

We consider the schedulingproblem ofminimizinga weighted sum of completion times under release dates. We present a relaxation which is a supermodular polyhedron. We show that this relaxation is precisely the projection of a time-indexed relaxation introduced by Dyer and Wolsey.

• Type: Conference
• Year: 1996
• Where: IPCO
• Authors: Michel X. Goemans
• Keywords: Completion Times, IPCO 1996, IPCO 2007, Ofminimizinga Weighted Sum, Time-indexed Relaxation