Machine learning researcher at Microsoft Research. Adjunct professor at Stanford.https://bsky.app/profile/lestermackey.bsky.socialhttps://bsky.app/profile/lestermackey.bsky.social/post/3mawg65ykp22kI’m happy to share our new paper, “KerJEPA: Kernel Discrepancies for Euclidean Self-Supervised Learning”: arxiv.org/abs/2512.19605 This work builds on the LeJEPA framework by reinterpreting its regularization objective through the lens of kernel discrepancies.26 Dec 2025 23:12 +0000at://did:plc:szmh3jpndcfimixaxytrjbps/app.bsky.feed.post/3mawg65ykp22khttps://bsky.app/profile/lestermackey.bsky.social/post/3m3qmhdu6u22vIf you're a PhD student interested in interning with me or one of my amazing colleagues at Microsoft Research New England @msftresearch.bsky.social this summer, please apply here https://jobs.careers.microsoft.com/global/en/job/1900003/Research-Intern---Machine-Learning-and-Statistics If you'd like to work with me, please include my name in your cover letter!22 Oct 2025 00:43 +0000at://did:plc:szmh3jpndcfimixaxytrjbps/app.bsky.feed.post/3m3qmhdu6u22vhttps://bsky.app/profile/lestermackey.bsky.social/post/3m2vax7fp722iOnly in LA 🐢11 Oct 2025 03:35 +0000at://did:plc:szmh3jpndcfimixaxytrjbps/app.bsky.feed.post/3m2vax7fp722ihttps://bsky.app/profile/lestermackey.bsky.social/post/3m254zqhr3k26Could this be our future? (Sound on)01 Oct 2025 13:21 +0000at://did:plc:szmh3jpndcfimixaxytrjbps/app.bsky.feed.post/3m254zqhr3k26https://bsky.app/profile/lestermackey.bsky.social/post/3lyytrk2a2k22If you're an undergraduate interested in interning with me or one of my amazing colleagues at Microsoft Research New England this summer, please apply here: msft.it/6015scgSJ [contains quote post or other embedded content]17 Sep 2025 03:00 +0000at://did:plc:szmh3jpndcfimixaxytrjbps/app.bsky.feed.post/3lyytrk2a2k22