BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Ben Hollering (North Carolina State University) DTSTART:20200409T140000Z DTEND:20200409T150000Z DTSTAMP:20260423T021157Z UID:VSAMRT/1 DESCRIPTION:Title: I dentifiability in Phylogenetics using Algebraic Matroids\nby Ben Holle ring (North Carolina State University) as part of Virtual seminar on algeb raic matroids and rigidity theory\n\n\nAbstract\nIdentifiability is a cruc ial property for a statistical model since it implies that distributions i n the model uniquely determine the parameters that produce them. In phylog enetics\, the identifiability of the tree parameter is of particular inter est since it means that phylogenetic models can be used to infer evolution ary histories from data. Typical strategies for proving identifiability re sults require Gröbner basis computations which become untenable as the si ze of the model grows. In this talk I'll give some background on phylogene tic algebraic geometry and then discuss a new computational strategy for p roving the identifiability of discrete parameters in algebraic statistical models that uses algebraic matroids naturally associated to the models. T his algorithm allows us to avoid computing Gröbner bases and is also para llelizable.\n LOCATION:https://researchseminars.org/talk/VSAMRT/1/ END:VEVENT END:VCALENDAR