david yan

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@dzyan01

phd student @PrincetonVL, research intern @elorianai.
formerly: bse @princetoncs

david-yan1.github.io Joined March 2025

463 Following 748 Followers 183 Posts

Latest posts 5

david yan @dzyan01 3d

Grounded reasoning is a popular thinking strategy for VLMs. But do models even use their grounding? (spoiler: not always!)

In our @ElorianAI paper, we dig into the grounded reasoning recipe and release BrickVision, a benchmark that’s challenging to solve without grounding. 1/7

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david yan @dzyan01 Nov 6

super cool use of infinigen for zero-shot sim2real!

Siyuan Hu Verified account @huksyn Nov 6

We just released HALO — Perceptive Humanoid Motion from Simulation.

Trained entirely on synthetic data from 1,000 procedurally generated homes. Zero-shot deployment in 6 unseen real environments. 91% success rate across 360 physical trials. Fully onboard.

Paper, code, and project page are all live.

apple-aiml-research.github.io/ml-halo/

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david yan @dzyan01 Nov 6

Random thought on "why do a (ml/ai) phd?" I believe AI has shortened one's optimization horizon, due to high future uncertainty. As such, you should be confident that you will get positive short-term value, instead of indexing on the eventual delayed reward from finishing.

david yan @dzyan01 Nov 2

Excited to announce a major performance update for Infinigen! We've overhauled various assets and systems, focusing on efficiency. Our `--performance` config reduces the average generation time of nature scenes by 8x without sacrificing any visual fidelity! 1/3

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david yan @dzyan01 Oct 29

my bitter lesson is finding out that caffeine significantly increases my focus and productivity