Archive for #ERCSyG

the privacy fallacy [book review]

Posted in Statistics with tags , , , , , , , , , , , , , , , , , , , , , , , , , , , , , on May 3, 2024 by xi'an

“The World changed significantly since 1973.” (p.10)

I read this book, The Privacy Fallacy: Harm and Power in the Information Economy, by Ignacio Cofone, upon my return from Warwick the past week. This is a Cambridge University Press 2023 book I had picked from their publication list after reviewing a book proposal for them. A selection made with our ERC OCEAN goals in mind, but without paying enough attention to the book table of contents, since it proved to be a Law book!

“People’s inability to assess privacy risks impact people’s behavior toward privacy because it turns the risks into uncertainty, a kind of risk that is impossible to estimate.” (p.31)

Still, this ended up being a fairly interesting read (for me) about the shortcomings of the current legal privacy laws (in various countries), since they are based on an obsolete perception that predates AIs and social media. Its main theme is that privacy is a social value that must be protected, regardless of whether or not its breach has tangible consequences. The author then argues that notions that support these laws such as the rationality of individual choices, the confusion between privacy and secrecy, the binary dichotomy between public and private, &tc., all are erroneous, hence the “fallacy” he denounces. One immediate argument for his position is the extreme imbalance of information between individuals and corporations, the former being unable to assess the whole impact of clicking on “I agree” when visiting a webpage or installing a new app. The more because the data thus gathered is pipelined to third parties. (“One’s efforts cannot scale to the number of corporations collecting and using one’s personal data”, p.93) For similar reasons, Cofone further states that the current principles based on contracts are inappropriate. Also because data harm can be collective and because companies have a strong incentive to data exploitation, hence a moral hazard.

“Inferences, relational data, and de-identified data aren’t captured by consent provisions.” (p.9)

“AI inferences worsen information overload (…) As [they] continue to grow, so will the insufficiency of our processing ability to estimate our losses.” (p.75)

As illustrated by the surrounding quotes, the statistical and machine-learning aspects of the book are few and vague, in that the additional level of privacy loss due to post-data processing is considered as a further argument for said loss to be impossible to quantify and assess, without a proper evaluation of the channels through which this can happen and without a reglementary proposal towards its control. This level of discourse makes AIs appear as omniscient methods, unfortunately.

“Inferences are invisible (…) Risks posed by inferences are impossible to anticipate because the information inferred is disproportionate to the sum of the information disclosed.” (p.49)

“The idea of probabilistic privacy loss is crucial in a world where entities (..) mostly affect our privacy by making inferences” (p.121)

The attempts at regulation such as opt-in and informed consent are then denounced as illusions—obviously so imho, even without considering the nuisance of having to click on “Reject” for each newly visited website!—. De- and re-identified data does not require anyone’s consent. Data protection rights, as of today, do not provide protection in most cases, the burden of proof residing on the privacy victims rather than the perpetrators. The book unsurprisingly offers no technical suggestion towards ensuring corporations and data brokers comply with this respect of privacy and on the opposite agrees that institutional attempts such as GDPR remain well-intended wishful thinking w/o imposing a hard-wired way of controlling the data flows, with the “need of an enforcement authority with investigating and sanctioning powers” (p.106) . The only in-depth proposal therein is pushing for stronger accountability of these corporations via a new type of liability, with a prospect of class actions (if only in countries with this judiciary possibility).

[Disclaimer about potential self-plagiarism: this post or an edited version will eventually appear in my Books Review section in CHANCE.]

mostly MC [April]

Posted in Books, Kids, Statistics, University life with tags , , , , , , , , , , , , , , , , , , , , , , , , , on April 5, 2024 by xi'an

postdoctoral research positions at PariSanté

Posted in pictures, Statistics, Travel, University life with tags , , , , , , , , , , , , , , , , , , , on March 7, 2024 by xi'an

Thanks to the 2023-2029 ERC Synergy grant OCEAN (On intelligenCE And Networks: Synergistic research in Bayesian Statistics, Microeconomics and Computer Sciences), I am seeking one or two postdoctoral researchers with an interest in Bayesian federated learning, distributed MCMC, approximate Bayesian inference and computing, and data privacy.

The project is based at Université Paris Dauphine, on the new PariSanté Campus.  The postdocs will join the OCEAN teams of researchers directed by Éric Moulines and myself (Christian P Robert) to work on the above themes with multiple possibilities of focus from statistical theory, to Bayesian methodology, to decision theory, to algorithms, to medical applications. Collaborations with the OCEAN teams of researchers directed by Michael Jordan (Berkeley) and Gareth Roberts (Warwick) will further be encouraged and related travel will be supported.

Qualifications

The candidates should hold a doctorate in applied maths, statistics or machine learning, with demonstrated skills in Bayesian analysis, game theory, Monte Carlo methodology or numerical probability, an excellent record of publications in these domains, and an interest in working as part of an interdisciplinary international team. Scientific maturity and research autonomy are a must for applying. There is no deadline for the positions, which will be filled when a suitable candidate is selected.

Funding

Besides a 2 year postdoctoral contract at Université Paris Dauphine (with possible extension for another year), at a salary of 31K€ per year, the project will fund travel to OCEAN partners’ institutions (University of Warwick or University of Berkeley) and participation to yearly summer schools and conferences. Standard French university benefits are attached to the position and no teaching duty is involved, as per ERC rules.

The starting date of the postdoctoral positions is negotiable depending on the applicants’ availability.

Application Procedure

  • To apply, please send the following entries in one pdf file to Christian Robert (bayesianstatistics@gmail.com).
  • a letter of application,
  • a CV,

Letters of recommendation are to be sent directly by their author.

last exams

Posted in Kids, Statistics, University life with tags , , , , , , , , , , , , on January 19, 2024 by xi'an

postdoctoral research position

Posted in Statistics, Travel, University life with tags , , , , , , , , , , , , , , , , on April 27, 2023 by xi'an

Through the ERC Synergy grant OCEAN (On intelligenCE And Networks: Synergistic research in Bayesian Statistics, Microeconomics and Computer Sciences), I am seeking one postdoctoral researcher with an interest in Bayesian federated learning, distributed MCMC, approximate Bayesian inference, and data privacy.

The project is based at Université Paris Dauphine, on the new PariSanté Campus.  The postdoc will join the OCEAN teams of researchers directed by Éric Moulines and Christian Robert to work on the above themes with multiple focus from statistical theory, to Bayesian methodology, to algorithms, to medical applications.

Qualifications

The candidate should hold a doctorate in statistics or machine learning, with demonstrated skills in Bayesian analysis and Monte Carlo methodology, a record of publications in these domains, and an interest in working as part of an interdisciplinary international team. Scientific maturity and research autonomy are a must for applying.

Funding

Besides a 2 year postdoctoral contract at Université Paris Dauphine (with possible extension for one year), at a salary of 31K€ per year, the project will fund travel to OCEAN partners’ institutions (University of Warwick or University of Berkeley) and participation to yearly summer schools. University benefits are attached to the position and no teaching duty is involved, as per ERC rules.

The postdoctoral work will begin 1 September 2023.

Application Procedure

To apply, preferably before 31 May, please send the following in one pdf to Christian Robert (bayesianstatistics@gmail.com).

  • a letter of application,
  • a CV,
  • letters of recommendation sent directly by recommenders