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DTSTART:19960101T000000 END:STANDARD BEGIN:STANDARD TZNAME:GMT TZOFFSETFROM:+0100 TZOFFSETTO:+0000 DTSTART:19961027T020000 RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20260427T084119Z DTSTART;VALUE=DATE-TIME:20180119T140000 DTEND;VALUE=DATE-TIME:20180119T150000 SUMMARY:CRiSM Seminar TZID:Europe/London UID:20180119-8a17841a5e5cecfb015e762e5030626f@warwick.ac.uk CREATED:20170912T130140Z DESCRIPTION:Jonas Peters\, Department of Mathematical Sciences\, Universi ty of Copenhagen Invariant Causal Prediction Abstract: Why are we intere sted in the causal structure of a process? In classical prediction tasks as regression\, for example\, it seems that no causal knowledge is requ ired. In many situations\, however\, we want to understand how a system reacts under interventions\, e.g.\, in gene knock-out experiments. Here\ , causal models become important because they are usually considered inv ariant under those changes. A causal prediction uses only direct causes of the target variable as predictors\; it remains valid even if we inter vene on predictor variables or change the whole experimental setting. In this talk\, we show how we can exploit this invariance principle to est imate causal structure from data. We apply the methodology to data sets from biology\, epidemiology\, and finance. The talk does not require any knowledge about causal concepts. David Ginsbourger\, Idiap Research Ins titute and University of Bern\, http://www.ginsbourger.ch Quantifying an d reducing uncertainties on sets under Gaussian Process priors Abstract: Gaussian Process models have been used in a number of problems where an objective function f needs to be studied based on a drastically limited number of evaluations. Global optimization algorithms based on Gaussian Process models have been investigated for several decades\, and have be come quite popular notably in design of computer experiments. Also\, fur ther classes of problems involving the estimation of sets implicitly def ined by f\, e.g. sets of excursion above a given threshold\, have inspir ed multiple research developments. In this talk\, we will give an overvi ew of recent results and challenges pertaining to the estimation of sets under Gaussian Process priors\, with a particular interest for to the q uantification and the sequential reduction of associated uncertainties. Based on a series of joint works primarily with Dario Azzimonti\, Franço is Bachoc\, Julien Bect\, Mickaël Binois\, Clément Chevalier\, Ilya Molc hanov\, Victor Picheny\, Yann Richet and Emmanuel Vazquez. LOCATION:MA_B1.01 URL:http://www2.warwick.ac.uk/fac/sci/statistics/crism/seminars ATTACH:http://www2.warwick.ac.uk/fac/sci/statistics/crism/seminars CATEGORIES:CRiSM Seminars,Seminars LAST-MODIFIED:20180119T095943Z ORGANIZER;CN=Paula Matthews: END:VEVENT END:VCALENDAR