A unified PAC-Bayesian framework for machine unlearning via information risk minimization

Sharu Jose, Osvaldo Simeone

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Abstract

Machine unlearning refers to mechanisms that can remove the influence of a subset of training data upon request from a trained model without incurring the cost of re-training from scratch. This paper develops a unified PAC-Bayesian framework for machine unlearning that recovers the two recent design principles - variational unlearning [1] and forgetting Lagrangian [2] as information risk minimization problems [3]. Accordingly, both criteria can be interpreted as PAC-Bayesian upper bounds on the test loss of the unlearned model that take the form of free energy metrics.
Original languageEnglish
Title of host publication2021 IEEE 31st International Workshop on Machine Learning for Signal Processing (MLSP)
PublisherIEEE
Number of pages6
ISBN (Electronic)9781728163383
ISBN (Print)9781665411844 (PoD)
DOIs
Publication statusPublished - 15 Nov 2021

Publication series

NameMachine learning for signal processing
PublisherIEEE
ISSN (Print)1551-2541

Keywords

  • Machine unlearning
  • PAC-Bayesian bounds
  • free energy minimization

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