BEGIN:VCALENDAR VERSION:2.0 PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4// BEGIN:VEVENT UID:20250623T173851EDT-0562HVNXl1@132.216.98.100 DTSTAMP:20250623T213851Z DESCRIPTION:Title: Off-the-grid sparse estimation\n\n\n Abstract: The behavi our of sparse regularization using the Lasso method is well understood whe n dealing with discretized linear models. However\, the behaviour of Lasso is poor when dealing with models with very large parameter spaces and in recent years\, there has been much interest in the use of 'off-the-grid' a pproaches\, using a continuous parameter space in conjunction with convex optimization problem over measures. In my talk\, I will present some recen t results which explain the behaviour of this method in arbitrary dimensio ns. Some highlights include the use of the Fisher metric to study the perf ormance of Blasso over general domains and the application of this for qua ntitative MRI.\n\nFor Zoom meeting information please contact Tim.Hoheisel [at] mcgill.ca\n DTSTART:20210315T131500Z DTEND:20210315T131500Z SUMMARY:Clarice Poon (University of Bath) URL:/mathstat/channels/event/clarice-poon-university-b ath-329614 END:VEVENT END:VCALENDAR