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SUMMARY:Fast follow-up using accelerated likelihood evaluation - Jonathan 
 Gair (IoA)
DTSTART:20130508T124500Z
DTEND:20130508T131500Z
UID:TALK43798@talks.cam.ac.uk
CONTACT:28811
DESCRIPTION:The calculation of posterior parameter distributions using\nBa
 yesian techniques requires repeated likelihood evaluations and can\ntheref
 ore be both computationally expensive and time-consuming. We will\ndescrib
 e an approach to faster likelihood evaluation based on reduced order\nquad
 ratures. A reduced spanning basis for the model space is first\nconstructe
 d and then a quadrature rule for that reduced basis is developed.\nThe qua
 drature rule is typically cheaper to evaluate than the full\nlikelihood\, 
 allowing accelerated follow-up. We discuss the application of\nthese techn
 iques to the follow-up of gravitational wave candidates\nidentified by the
  LIGO interferometers.
LOCATION:Sackler Lecture Theatre\, IoA
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