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isaacimagine

HN member
Joined
Wed, Apr 08, 2020, 1:30 AM UTC
HN karma
1,810
Public activity
291 items

About isaacimagine

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Recent public activity

  1. story
  2. comment
    Comment #46979105

    I read this as "a shortage of tensors" and was curious as to the latest chicanery. But yeah tenors right -- matches my experience.

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    Comment #44284217

    DT's reward-to-go vs. QL's Bellman incl. discount, not choice of architecture for policy. You could also do DTs with RNNs (though own problems w/ memory). Apologies if we're talkin…

  6. comment
    Comment #44283844

    TFP: https://arxiv.org/abs/2506.04168 The DT citation [10] is used on a single line, in a paragraph listing prior work, as an "and more". Another paper that uses DTs [53] is also c…

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    Comment #44282807

    No mention of Decision Transformers or Trajectory Transformers? Both are offline approaches that tend to do very well at long-horizon tasks, as they bypass the credit assignment pr…

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    Comment #44147480

    The article is about using nalgebra to create an intuitive library for tranforming between Earth's various coordinate systems. Not "another Rust matrix library".

  9. comment
    Comment #44124827

    Very cool, thank you for sharing!

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    Comment #44122856

    z3 has good python bindings, which I've messed around with before. My manual solution uses 42 gates, I would be interested to see how close to being optimal it is. I didn't ask the…

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    Comment #44122073

    Thank you, I'm glad you enjoyed it! Well, I'm not an expert. I think that this research direction is very cool. I think that, at the limit, for some (but not all!) applications, we…

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    Comment #44122037

    +10 respect, thank you <3

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    Comment #44122020

    There are 163 lines of C. Of them, with -O3, 104 lines are present in the assembly output. So the C compiler is able to eliminate an additional ~36.2% of the instructions. It doesn…

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    Comment #44121804

    Glad you enjoyed it, and thanks for the tip!

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    Comment #44120383

    Thank you! Good question, Here are the NN stats, before lowering to C: total gates | 2303 | 100.0% -------------------+------+------- passthrough | 2134 | 92.7% gates w/ no effect …

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    Comment #44120132

    Parameters and options, got it. I try to keep all configuration declarative and make building and running as deterministic as possible. Then I can commit whenever I do something in…

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    Comment #44119988

    Yes and no. I wasn't expecting to be able to reproduce the work, so I'm just content that it works. I was very surprised by how much hyperparameter finagling I had to do to get the…

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    Comment #44119864

    Agree, it's much better to write up a journal at times when your colleagues would be https://xkcd.com/303

  19. comment
    Comment #44119840

    Chaotic energy haha, I like it. Thanks for the tips re: keeping a journal, I will do this more in the future. I usually keep development notes, though normally in markdown files sc…

  20. comment
    Comment #44119241

    Author here. Any questions, ask away.

  21. comment
    Comment #44020743

    https://dihulvhqvmoxyhkxovko.supabase.co/storage/v1/object/p...

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    Comment #44018098

    I tested this out with a promotional illustration from Neon Genesis Evangelion . The model works quite well, but there are some temporal artifacts w.r.t. the animation of the hair …

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    Comment #43997954

    Totally. The hard part isn't coloring (you can use simple heuristics to get a decent register assignment), rather, it's figuring out which registers to spill (don't spill registers…

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    Comment #43995179

    At MIT, lectures must follow MIT time; all lectures are expected to start 5 minutes after the hour, and end 5 minutes before. Funnily this means each lecture is about one microcent…

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    Comment #43922471

    Thank you Brian! I miss tonari, I hope you're well. Game mods seem like a great fit for Wasm! I'm excited about Wasm GC, etc., because it means you can use e.g. a lightweight scrip…