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Olivier Grisel
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Olivier Grisel

@ogrisel
Engineer at @probabl_ai, scikit-learn developer. More active at: sigmoid.social/@ogrisel bsky.app/profile/ogrise…
Between Vannes & Paris, France
ogrisel.com
Joined August 2008
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  • user avatar
    Olivier Grisel
    @ogrisel
    Sep 6, 2024
    I am looking forward to giving a keynote presentation at @PyDataParis 2024, September 25-26, Cité des Sciences. This will be an opportunity to reflect on the meaning of "noise" and predictive uncertainty in machine learning applications.
    Decision boundary of under and over confident gradient boosting models fitted on a noisy XOR prediction problem.
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  • user avatar
    Olivier Grisel
    @ogrisel
    Apr 1, 2023
    Looking forward to @JupyterCon in Paris next month! Vincent Maladiere and I will give a full day tutorial on predictive Survival Analysis and Competing Risks modeling with a Gradient Boosting model assembled from generic scikit-learn building blocks. cfp.jupytercon.com/2023/talk/ACPU…
  • user avatar
    Olivier Grisel
    @ogrisel
    Dec 16, 2022
    Apparently any tweet that contains the URL of my sigmoid social account (see my profile) gets blocked today. Such anticompetitive and censorship practices will only lead to further migrations to alternative platforms.
  • user avatar
    Olivier Grisel
    @ogrisel
    Nov 6, 2022
    Interested in exploring #mastodon? A few hints: first choose a small instance related to your topic of interest, e.g. sigmoid.social for ML research, fosstodon.org for open source development, hachyderm.io for infra / security hackers...
  • user avatar
    Olivier Grisel
    @ogrisel
    Nov 5, 2022
    Watching #AcademicTwitter fleeing to mastodon as part of #TwitterMigration... like the elves fleeing Middle Earth to Valinor in anticipation of the shadows of misinformation Sauron and its hordes of harassers.

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