AlphaNIST

(alpha-nist.github.io)

71 points | by jasonjmcghee 11 hours ago ago

23 comments

  • romesc 8 hours ago ago

    Hi, one of the authors here!

    We can answer questions! But also, I want to highlight that the "AlphaNIST" name is an homage to the very well known work from David Silver's research group @ Deepmind circa 2016->2018. This was when we were coming up very early in our research careers and their work obviously had a big impact on us!

    It has taken longer to make some of those ideas work for areas as challenging as robotics where there are physical constraints to deal with (and admittedly in this paper, we do not show the transfer to real hardware quite yet). But, we have some glimmer of evidence it is looking possible here (in another recent paper) that we cranked on for the last 6 months and will be featured at CoRL: https://x.com/octi_zhang/status/2108583315544682914

    We are also all mega-lurkers here so we were honored to be featured on the front page!

    • serioussecurity 7 hours ago ago

      ICYMI, the "alpha" is a reference to "alphabet", i.e., Google, after deepmind was acquired. You have branded your paper as coming from Google.

      • romesc 4 hours ago ago

        Point received! We wonder what a better way to pay that same homage would be, since we followed the similar philosophy, but with considerations for our contact-rich robotic control setting.

        • dpe82 4 hours ago ago

          A shout-out in the paper, perhaps? But co-opting their naming convention for unearned publicity isn't cool.

    • hansmoravec 4 hours ago ago

      Very cool line of work and emergent behaviors are so fascinating and solving NIST standard is very impressive! This just shows robot dexterity doesnt necessarily always need hands atleast for industrial assembly tasks. Came across your CoRL publication before I found alphaNIST. I was curious how much simulation asset engineering and sysID/tuning was needed for transfer to the real robot?

      • romesc 3 hours ago ago

        Thank you so much for your kind words!

        Ensuring the assets are "CAD-level accurate" has a huge impact on making this work in practice. So much so, that our collaborators Yash Narang [1] and Iretiayo Akinola [2] have spent a number of years on just this - we are standing on the shoulders of giants!

        Additionally, understanding the hardware well (including things like motor and controller dynamics) is non-negotiable. We learned the hard way that there is, in fact, no free lunch. You really have to get the deep understanding of physics and engineering right.

        [1] https://scholar.google.com/citations?user=M3NuG7AAAAAJ&hl=en [2] https://scholar.google.com/citations?user=e1zesfMAAAAJ&hl=en

  • Mr_P 9 hours ago ago

    This is a robotics paper by Nvidia & UW researchers.

    It is not an Alphabet/Deepmind paper, and it also has nothing to do with the "NIST" OCR dataset.

    Was there really not a more appropriate name than "AlphaNIST"?

    • just2answer 8 hours ago ago
    • geerlingguy 4 hours ago ago

      I thought of the National Institute of Standards and Technology... acronym/naming overload, like using "STL"!

      • Y_Y an hour ago ago

        That is indeed the reference

    • sdenton4 6 hours ago ago

      Woah, deepmind solved the national institute of standards and technology???

      • Den_VR 4 hours ago ago

        Situation Before: there are 14 competing standards.

        Situation Soon: there are 15 trillion standards tailored to every possible situation.

    • jasonjmcghee 8 hours ago ago

      NIST makes sense, but co-opting Alpha is a bit odd.

      Alpha historically had meant "Google DeepMind" not RL

  • amluto 9 hours ago ago

    I’m highly entertained by the way the robot tightens nuts. There is no way this would work in the real world :)

    (This whole thing is awesome. I think they will need to get the number of rollouts needed down before it translates well to real robots — running hundreds of thousands of rollouts on small parts with a real rollout will be a real logistical mess when cleaning up parts on the floor and dealing with everything that the robots physically break while learning.)

    • romesc 4 hours ago ago

      We use sim2real with distillation-based transfer :)

      This means no need to do the rollouts on real robots first! Please check out https://sgs-rl.github.io for some transfer examples (albeit a simpler setting then the multi-part NIST board we examine in AlphaNIST).

  • BoppreH 8 hours ago ago

    Really cool stuff. I especially liked the flicking behavior. Very organic movements.

    In case somebody got the same question as me: the robot "sees" point clouds as input, so basically the full simulation state except for velocities (correct me if I'm wrong). As put in the limitations section, it "[does] not establish robustness to perception error, latency, or contact-model mismatch".

  • Kuyawa 9 hours ago ago

    Without clicking the link. What is it? How about a short description?

    Alphanist - Some app/lib/code that does something

    • jasonjmcghee 8 hours ago ago

      It's the companion blog post to an Nvidia / UW paper of an approach to solving learning based high precision robotics tasks.

      HN guidelines are to use the title of the blog post and not editorialize.

      • jagged-chisel 7 hours ago ago

        HN guidelines don’t preclude the submitter from including a descriptive first comment on the story.

  • squanch 7 hours ago ago

    The movements of the robot gripper arm and its interaction with the longer objects ("Single-component assembly experiment", 1:00 and onwards) somehow really reminds me of how a horse moves it head.

  • wasabi991011 8 hours ago ago

    The starting states being at different points in the task and having success-guided starting state sampling seem like really neat ideas. I haven't kept up with RL in a while, how novel is this?

    • romesc 4 hours ago ago

      The mechanism is loosely related to curriculum learning, though we argue there are some distinctions. In the methodological companion paper (https://sgs-rl.github.io), we try to get into more details in the related work and baselines including comparison to methods like PLR (also from Deepmind), SFL, and linear handcrafted curriculums over states.

      You are giving me some inspiration, though, that it might be good to try to explain the related techniques in a lower-dimensional setting to help teach the concept more effectively! brb