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Summary of The Limits Of Differential Privacy in Online Learning, by Bo Li et al.


The Limits of Differential Privacy in Online Learning

by Bo Li, Wei Wang, Peng Ye

First submitted to arxiv on: 8 Nov 2024

Categories

  • Main: Machine Learning (cs.LG)
  • Secondary: None

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Summary difficulty Written by Summary
High Paper authors High Difficulty Summary
Read the original abstract here
Medium GrooveSquid.com (original content) Medium Difficulty Summary
The research paper investigates the fundamental limits of differential privacy in online learning algorithms, presenting evidence that separates three types of constraints: no DP, pure DP, and approximate DP. The authors describe a hypothesis class that is online learnable under approximate DP but not online learnable under pure DP under adaptive adversarial setting, indicating the need for approximate DP when dealing with adaptive adversaries. Additionally, they prove that any private online learner must make an infinite number of mistakes for almost all hypothesis classes, generalizing previous results and showing a strong separation between private and non-private settings.
Low GrooveSquid.com (original content) Low Difficulty Summary
The paper explores how to keep data private while still being able to learn from it. It looks at different ways to achieve this balance between privacy and usefulness, called differential privacy. The authors show that some methods are better than others for certain types of data and adversaries. They also prove that any method trying to be both private and accurate will make many mistakes.

Keywords

» Artificial intelligence  » Online learning