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SUMMARY:Ahmed El Alaoui (Stanford)
DTSTART:20200722T140000Z
DTEND:20200722T150000Z
DTSTAMP:20260423T052447Z
UID:MADPlus/14
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/MADPlus/14/"
 >Optimization of mean-field spin glass Hamiltonians</a>\nby Ahmed El Alaou
 i (Stanford) as part of MAD+\n\n\nAbstract\nWe consider the question of co
 mputing an approximate ground state configuration of an Ising (mixed) p-sp
 in Hamiltonian H_N from a bounded number of gradient evaluations.\n\nI wil
 l present an efficient algorithm which exploits the ultrametric structure 
 of the superlevel sets of H_N in order to achieve an energy E_* characteri
 zed via an extended Parisi variational principle. This energy E_* is optim
 al when the model satisfies a `no overlap gap’ condition. At the heart o
 f this algorithmic approach is a stochastic control problem\, whose dual t
 urns out to be the Parisi formula\, thereby shedding new light on the natu
 re of the latter.\n\nThis is joint work with Andrea Montanari and Mark Sel
 lke.\n
LOCATION:https://researchseminars.org/talk/MADPlus/14/
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