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Ben Jacobsen

So one of the major problems with is that it's deliberately opaque about the basis for the claims it makes. What happens if you explicitly ask it to cite its sources?

Turns out the answer is - it will just spit out citations for non-existent papers and falsely attribute scientific discoveries to people who didn't make them!

(local differentially private mechanisms have existed since at least the 60s, and have been studied by that name since at least 2008: arxiv.org/pdf/0803.0924.pdf)

Human: Write an academic essay on the history of differential privacy. The essay cites many academic papers, using both in-line citations and a bibliography at the end
This is a screenshot of part of ChatGPT's response. It reads "In the years since its introduction, differential privacy has been the subject of much research and development. In 2012, John Lafferty and his colleagues published a paper that introduced the concept of "local differential privacy" which allows for the analysis of sensitive data without the need to share it with a third party. This has been a particularly important development in the field of healthcare, where sensitive data must be analyzed without compromising patient privacy."
This is a screenshot of the bibliography produced by ChatGPT. It references a non-existent paper called "Estimating probabilities: A guide to the calculation of local privacy", supposedly published by John Lafferty in AISTATS 2012
User: who invented local differential privacy? ChatGPT: Local differential privacy was introduced by John Lafferty and his colleagues in a paper published in 2012.
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