Archive for Gregynog Hall
early morn in Powys [jatp]
Posted in Mountains, pictures, Running, Travel with tags Cymru, Great-Britain, Gregynog Hall, Powys, running injury, sunrise, Tregynon, Wales, winter running on April 8, 2022 by xi'an
back to Powys
Posted in Statistics with tags Bettws, Cymru, Gregynog Hall, Powys, Tregynon, University of Warwick, Wales on March 29, 2022 by xi'an
bitcoin and cryptography for statistical inference and AI
Posted in Books, Mountains, pictures, Running, Statistics, Travel, University life with tags AI, anonymised data, bitcoin, Britain, cryptography, encryption, Gregynog Hall, Gregynog Statistical Conference, information, Navy, Powys, Tregynon, Wales on April 16, 2018 by xi'an
A recent news editorial in Nature (15 March issue) reminded me of the lectures Louis Aslett gave at the Gregynog Statistical Conference last week, on the advanced use of cryptography tools to analyse sensitive and private data. Lectures that reminded me of a graduate course I took on cryptography and coding, in Paris 6, and which led me to visit a lab at the Université de Limoges during my conscripted year in the French Navy. With no research outcome. Now, the notion of using encrypted data towards statistical analysis is fascinating in that it may allow for efficient inference and personal data protection at the same time. As opposed to earlier solutions of anonymisation that introduced noise and data degradation, not always providing sufficient protection of privacy. Encryption that is also the notion at the basis of the Nature editorial. An issue completely missing from the paper, while stressed by Louis, is that this encryption (like Bitcoin) is costly, in order to deter hacking, and hence energy inefficient. Or limiting the amount of data that can be used in such studies, which would turn the idea into a stillborn notion.
Gregynog Hall ciplun [jatp]
Posted in Mountains, pictures, Running, Travel, University life with tags Cymru, Gregynog Hall, jatp, Powys, Wales on March 25, 2018 by xi'an
back to Wales [54th Gregynog Statistical Conference]
Posted in Mountains, pictures, Running, Travel, University life with tags ABC convergence, Birmingham, Gregynog Hall, Gregynog Statistical Conference, misspecification, slides, slideshare, University of Warwick, Wales on March 23, 2018 by xi'an
Today, provided the Air France strike let me fly to Birmingham airport!, I am back at Gregynog Hall, Wales, for the weekend conference organised there every year by some Welsh and English statistics departments, including Warwick. Looking forward to the relaxed gathering in the glorious Welsh countryside (and hoping that my knee will have sufficiently recovered for some trail running around Gregynog Hall…!) Here are the slides of the talk I will present tomorrow:
Xi'an's Og 