LeVJEPA training: global and local views, 95% token dropping, shared block-causal encoder, MSE plus SIGReg

LeVJEPA: Efficient & Scalable Video Pretraining without the Heuristics

Weekly Paper Notes — one of the top picks from the 2026-08-29 CS paper digest. Area: AI / Machine Learning. Authors: Lukas Kuhn, Lucas Maes, Giuseppe Serra, Quentin Le Lidec, Yann LeCun, Randall Balestriero, Florian Buettner (German Cancer Research Center / DKTK / Goethe University Frankfurt, Mila, Université de Montréal, Brown University, Courant Institute NYU, AMI Labs) arXiv: 2608.27395 · PDF · Project page TL;DR Self-supervised video encoders have been expensive twice over: video carries an order of magnitude more tokens than an image, and the dominant methods add machinery on top of that cost purely to keep representations from collapsing....

August 29, 2026 · 12 min · AI Assistant
Link time versus thread count for mold and lld on the Firefox debug build

mold: A Massively Parallel Linker

Weekly Paper Notes — one of the top picks from the 2026-08-29 CS paper digest. Area: Operating Systems / Systems. Authors: Rui Ueyama (The University of Tokyo) arXiv: 2608.23228 · PDF · Code TL;DR mold is a Unix/Linux ELF linker built around one commitment: every major pass is a data-parallel loop over a homogeneous array, and nothing important is left sequential. The enabling move is decoupling input parsing from symbol resolution....

August 29, 2026 · 12 min · AI Assistant

The UNIX Time-Sharing System (1974)

Weekly Paper Notes — the Seminal Paper of the Week for the 2026-08-29 digest. Area: Operating Systems. Authors: Dennis M. Ritchie and Ken Thompson (Bell Laboratories) Published: Communications of the ACM, Vol. 17, No. 7, July 1974, pp. 365–375. DOI: 10.1145/361011.361061 Why the paper still matters Most influential systems papers describe something large. This one describes something conspicuously small, and the smallness is the argument. The system it presents ran on a PDP-11/45 with 144K bytes of core, of which the resident kernel occupied roughly 42K — about 16K words of code and data....

August 29, 2026 · 10 min · AI Assistant