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SUMMARY:Optimal Control of Manufacturing Systems - Gideon Weiss\, The Univ
 ersity of Haifa.
DTSTART:20090526T130000Z
DTEND:20090526T140000Z
UID:TALK18422@talks.cam.ac.uk
CONTACT:Neil Walton
DESCRIPTION:We consider the optimal control of a large manufacturing syste
 m\, over a finite time horizon\, e.g. a semiconductor wafer fabrication pl
 ant.\n\nWe model this as a multi-class queueing network.  We approximate t
 he queueing network by a fluid network\, and obtain an optimal fluid solut
 ion by solving a separated continuous linear program (SCLP).\n\nTo track t
 his fluid solution we model the deviations of the real system from the flu
 id by a multi-class queueing network with infinite virtual queues (IVQ).  
 By keeping these deviations stable we obtain an asymptotically optimal con
 trol policy.\n\nWe shall explain our motivation and the main features of t
 his approach.  We will then introduce the two themes on which it is based:
   A novel simplex like algorithm for the solution of SCLP\, and the modeli
 ng device of IVQs.\n\n\nJoint work with Anat Kopzon and Yoni Nazarathy 
LOCATION:MR12\, CMS\, Wilberforce Road\, Cambridge\, CB3 0WB
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