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UID:www.tcs.tifr.res.in/event/1572
DTSTAMP:20250818T065453Z
SUMMARY:Explainability\, Model Surgery\, and Quantum EM: Vignettes in Machi
 ne Learning
DESCRIPTION:Speaker: Chiranjib Bhattacharyya (IISC Banglore)\n\nAbstract: \
 nIn this talk\, I will present three research vignettes spanning explainab
 ility\, model editing\, and quantum generative modeling. First\, I will di
 scuss a compelling problem in explainability that emerged from our experie
 nce deploying XraySetu—a diagnostic service launched during the COVID-19
  pandemic. Second\, I will describe our work on identifying structural com
 ponents for model editing. Notably\, our approach does not require access 
 to the original training data or knowledge of the loss functions used to t
 rain the model. Instead\, it hinges on a novel lower bound on the total va
 riation (TV) distance via witness functions—a result that is of independ
 ent interest and\, for example\, enables upper bounds on the Bayes error r
 ate for the Fisher Discriminant. Finally\, time permitting\, I will presen
 t ongoing work on learning algorithms for generative AI models in a quantu
 m computing setting. In particular\, I will outline our derivation of Mino
 rant Maximization–style algorithms\, in the spirit of Expectation-Maximi
 zation (EM)\, for large-scale transverse-field Ising models.\nShort Bio:\n
 Chiranjib Bhattacharyya is currently Professor in the Department of Comput
 er Science and Automation\, Indian Institute of Science. His research inte
 rests are in foundations of Machine Learning\, Optimisation and their appl
 ications to Industrial problems. He is fellow of Indian Academy of Enginee
 ring\, Indian Academy of Sciences and Asia-Pacific Artificial Intelligence
  Association. He joined the Department of CSA\, IISc\, in 2002 as an Assis
 tant Professor. Prior to joining the Department he was a postdoctoral fell
 ow at UC Berkeley. He holds BE and ME degrees\, both in Electrical Enginee
 ring\, from Jadavpur University and the Indian Institute of Science\, resp
 ectively\, and completed his PhD from the Department of Computer Science a
 nd Automation\, Indian Institute of Science.\n
URL:https://www.tcs.tifr.res.in/web/events/1572
DTSTART;TZID=Asia/Kolkata:20250818T093000
DTEND;TZID=Asia/Kolkata:20250818T103000
LOCATION:Main Lecture Theatre (AG-66)
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