C. Zhang w/o shitpost
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chongzhang.bsky.social
C. Zhang w/o shitpost
@chongzhang.bsky.social
Stupid #robotics guy at ETHz

Twitter: https://x.com/ChongZitaZhang

Research Website: https://zita-ch.github.io/
Pinned
Our work on generalized legged locomotion published in Science Robotics

www.science.org/doi/10.1126/...
Our work on generalized legged locomotion published in Science Robotics

www.science.org/doi/10.1126/...
August 27, 2025 at 11:24 PM
It might be a bit late but here's our work in L4DC 2025 on bridging agility, safety, and adaptivity.

Compared to prior work (ABS) that safeguards agile locomotion, this one further explicitly estimates the change in dynamics and does adaptive shielding.

adaptive-safe-locomotion.github.io
June 17, 2025 at 8:44 PM
Anyone else feel that academic people are not very active here, and even the following feed are always filled with anti-Musk/Trump political posts?
March 29, 2025 at 1:54 AM
discord.gg/Xfxau8me

we just initiated a discord server on robot locomotion because we don't know any. Welcome to join!
Join the Robot Locomotion Discord Server!
Robot locomotion: Humanoid robots, quadruped robots, robot learning and control. | 14 members
discord.gg
March 27, 2025 at 8:44 PM
Starting my PhD soon at ETHz... on I don't know what will happen but it's always on autonomy and legged robots.
March 22, 2025 at 1:15 AM
Reposted by C. Zhang w/o shitpost
The key to achieving horizon generalization is *planning invariance*. A policy is planning invariant if decomposing tasks into simpler subtasks doesn't improve performance. We prove planning invariance can enable horizon generalization. 3/
February 4, 2025 at 8:37 PM
Reposted by C. Zhang w/o shitpost
Very happy to show that we can do RL finetuning on 405B models with open-source code, beat Llama 405B instruct with their base model, and beat DeepSeek V3 too. Enjoy building off this teams hard work.

Here's Tulu 3 405B. A holiday present from @hamishivi.bsky.social @vwxyzjn.bsky.social and team.
January 30, 2025 at 2:24 PM
Will (try to) begin work in 2025 (let's don't talk about exact dates).
December 23, 2024 at 9:52 PM
Reposted by C. Zhang w/o shitpost
🍏 New preprint alert! 🍏
PoM: Efficient Image and Video Generation with the Polynomial Mixer
arxiv.org/abs/2411.12663
This is my latest "summer project" and it was so big I had to call in reinforcements (Thanks @nicolasdufour.bsky.social)

TL;DR Transformers are for boomers, welcome to the future
🧵👇
PoM: Efficient Image and Video Generation with the Polynomial Mixer
Diffusion models based on Multi-Head Attention (MHA) have become ubiquitous to generate high quality images and videos. However, encoding an image or a video as a sequence of patches results in costly...
arxiv.org
November 20, 2024 at 8:08 AM
Self intro with videos

I'm a Ms student (2022fall-2025spring) in #robotics at ETH Zurich.

I work on control and navigation for legged robots (quadruped, humanoid, wheeled-legged).

My focus is learning for performant and reliable legged systems.

My website: zita-ch.github.io
November 11, 2024 at 6:15 PM