Xi'an's Og

Very relaxed beginning to the workshop, with [xkcd illustrated] tutorials on CI and DP, plus informal discussions to find a common ground over the week. Helped by the beautiful surroundings of the UBC Okanagan campus. Tutorial on the fundamentals of differential privacy, with a long room discussion on the meaning(s) of the definition, for instance exhibiting the minimax nature of the thing, placing all bad events at the same level. Any Bayesian version? Still unclear [to me] how one can inverse-engineer (ε,δ) into the probability of identifying one data entry. More questions about the nature of noise in DP algorithms. Again lacking [for me] the impact on identifying one data entry. Plus notions like Laplace privacy-accuracy sound parameterisation dependent. Exponential mechanism, that involves a score function (protecting privacy?) that ends up resembling a Gibbs posterior in the “safe Bayes” perspective. Interesting distinction about which agent provides randomness as impacting the privacy.

As for contextual integrity, presented by Helen Nissenbaum at the origin of the concept, it is complicated by a strongly subjective handling of notions, first and foremost privacy, as inevitably the case in philosophy and ethics.

This entry was posted on August 2, 2023 at 12:23 am and is filed under Books, Mountains, pictures, Statistics, University life with tags Banff International Research Station for Mathematical Innovation, BIRS, British Columbia, Canada, contextual integrity, differential privacy, ethics, Gibbs posterior, Kelowna, Okanagan Valley, philosophy of sciences, safe Bayes, score function, UBCO, workshop, xkcd. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.