BEGIN:VCALENDAR VERSION:2.0 PRODID:-//https://caida.ubc.ca//NONSGML iCalcreator 2.41.92// CALSCALE:GREGORIAN METHOD:PUBLISH UID:37616163-6566-4632-b162-343130613739 X-WR-RELCALID:efc09d74-9c93-479e-a94f-485231ddccde X-WR-TIMEZONE:America/Vancouver X-WR-CALNAME:Reconstructing Training Data from Model Gradient\, Provably - Qi Lei\, Assistant Professor\, NYU BEGIN:VTIMEZONE TZID:America/Vancouver TZUNTIL:20250309T100000Z BEGIN:STANDARD TZNAME:PST DTSTART:20221106T020000 TZOFFSETFROM:-0700 TZOFFSETTO:-0800 RDATE:20231105T020000 RDATE:20241103T020000 END:STANDARD BEGIN:DAYLIGHT TZNAME:PDT DTSTART:20230312T020000 TZOFFSETFROM:-0800 TZOFFSETTO:-0700 RDATE:20240310T020000 END:DAYLIGHT END:VTIMEZONE BEGIN:VEVENT UID:665ed9e2-0995-44da-9ddc-6ff3835e32a5 DTSTAMP:20260305T234151Z CLASS:PUBLIC CREATED:20230704T165925Z DESCRIPTION:Abstract: Understanding when and how much a model gradient leak s information about the training sample is an important question in privac y. In this talk\, we present a surprising result: even without training or memorizing the data\, we can fully reconstruct the training samples from a single gradient query at a randomly chosen parameter value. We prove the identifiability of the training data under mild conditions: with shallow or deep neural networks and a wide range of activation functions. We also present a statistically and computationally efficient algorithm based on l ow-rank tensor… DTSTART;TZID=America/Vancouver:20230711T113000 DTEND;TZID=America/Vancouver:20230711T123000 LAST-MODIFIED:20230705T222523Z LOCATION:UBC Vancouver Campus\, ICCS X836 / Please register to receive Zoom link SUMMARY:Reconstructing Training Data from Model Gradient\, Provably - Qi Le i\, Assistant Professor\, NYU TRANSP:OPAQUE URL:https://caida.ubc.ca/event/reconstructing-training-data-model-gradient- provably-qi-lei-assistant-professor-nyu END:VEVENT END:VCALENDAR