# How to unlearn a learned Machine Learning model ?

arXiv: https://arxiv.org/abs/2410.09935 · HTML: https://mlsanity.com/paper/2410.09935/

## Key facts

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- First posted on arXiv 13 Oct 2024.

## Abstract (arXiv)

In contemporary times, machine learning (ML) has sparked a remarkable revolution across numerous domains, surpassing even the loftiest of human expectations. However, despite the astounding progress made by ML, the need to regulate its outputs and capabilities has become imperative. A viable approach to address this concern is by exerting control over the data used for its training, more precisely, by unlearning the model from undesired data. In this article, I will present an elegant algorithm for unlearning a machine learning model and visualize its abilities. Additionally, I will elucidate the underlying mathematical theory and establish specific metrics to evaluate both the unlearned model's performance on desired data and its level of ignorance regarding unwanted data.