BEGIN:VCALENDAR VERSION:2.0 PRODID:-//wp-events-plugin.com//7.2.3.1//EN TZID:Asia/Kolkata X-WR-TIMEZONE:Asia/Kolkata BEGIN:VEVENT UID:73@cds.iisc.ac.in DTSTART;TZID=Asia/Kolkata:20240913T160000 DTEND;TZID=Asia/Kolkata:20240913T170000 DTSTAMP:20240911T043303Z URL:https://cds.iisc.ac.in/events/seminar-cds-102-september-13-2024-400-pm -computational-methods-for-predictive-digital-twins/ SUMMARY:{Seminar} @ CDS: #102: September 13\, 2024: 4:00 PM: "Computational methods for predictive digital twins" DESCRIPTION:Department of Computational and Data Sciences\nDepartment Semin ar\n\n\n\nSpeaker : Vishwas Rao\, Computational Mathematician Argonne Nati onal Laboratory Lemont\, IL\, USA\nTitle : "Computational methods for pred ictive digital twins".\nDate &\; Time : September 13\, 2024\, 4:00 PM\n Venue : # 102\, CDS Seminar Hall\n\nABSTRACT\nA digital twin couples compu tational models with a physical counterpart to create a system that is dyn amically updated through bidirectional data flows as conditions change. Da ta Assimilation and Optimal Experimental Design (OED) provide a systematic means of updating the computational model and acquiring information as th e physical system evolves. This talk will describe scalable preconditioner s and solvers for Bayesian inversion using different randomization techniq ues. The proposed techniques are amenable to parallelization and drastical ly reduce the required number of model evaluations. We also develop theore tical guarantees on the condition number. Additionally\, the talk will des cribe connections between OED for Bayesian linear inverse problems and the column subset selection problem (CSSP) in matrix approximation and derive bounds\, both lower and upper\, for the D-optimality criterion via CSSP f or the independent and colored noise cases. We demonstrate the performance and effectiveness of our methodology on a variety of test problems such a s Burgers and quasi-geostrophic equations.\n\nBIO: Dr Vishwas Rao's profil e may be found at\nhttps://www.linkedin.com/in/vishwas-rao-25b437a/\n\nA l ist of his publications may be found at\nhttps://scholar.google.com/citati ons?hl=en&\;user=S5A-_5QAAAAJ&\;view_op=list_works&\;sortby=pubda te\n\nHost Faculty: Prof. Soumyedu Raha\n\n\n\nALL ARE WELCOME CATEGORIES:Events,Talks END:VEVENT BEGIN:VTIMEZONE TZID:Asia/Kolkata X-LIC-LOCATION:Asia/Kolkata BEGIN:STANDARD DTSTART:20230914T160000 TZOFFSETFROM:+0530 TZOFFSETTO:+0530 TZNAME:IST END:STANDARD END:VTIMEZONE END:VCALENDAR