Harnessing the Universal Geometry of Embeddings

(arxiv.org)

48 points | by ur-whale 6 hours ago ago

13 comments

  • ironSkillet 2 hours ago

    I am not familiar with the standards of publishing in machine learning, but as someone trained in a mathematics background, this paper seems relatively light on details and heavy on exposition. Is that typical? Is this a really novel idea? Not trying to be snarky, just trying to understand how meaningful this is.

    • rhelz 2 hours ago

      You are not wrong. But this has by no means proven its up to the standard of being publishable in a machine learning journal. Its on arXiv.org, which, lets face it, at the end of the day is a vanity press.

      • canjobear 16 minutes ago

        It was accepted to NeurIPS.

      • efavdb 2 hours ago

        At a minimum posting to arxiv gives others a standard way to cite the work.

      • odyssey7 2 hours ago

        The pace of things is moving along so rapidly right now, I’m not sure that waiting for peer reviews is always a wise move. Doubly so if there’s a paywall; why limit your article’s impact by placing it where practitioners’ agents might not be able to access it? The rapid progress right now is challenging for conventional academic processes.

        If the value of the paper is difficult to independently verify, for example, if it depends on the credibility of the author, then the academic ritual can add something. If it’s a mathematical result, one that can be automatically verified, or a machine learning technique that anyone can try with Claude code reconstructing it for them, this sort of pre-print publishing model is advantageous.

        • rhelz an hour ago

          // why limit your article's impact //

          Because...science? It's not science until it passes peer review.

          I'm not advocating that everybody stops posting to arXiv, and I'm not saying you can't find good stuff there. I'm just saying, it's a vanity press, there is absolutely no guarantee of the paper's quality.

          And being published by a famous professor from a prestigious university is also no guarantee. If we've learned anything from the non-reproducibility crisis, it is that a paper's origin story is no guarantee.

  • nickledave 4 hours ago

    Dupe: https://news.ycombinator.com/item?id=44054425

    Note this is version 4 of the paper and the original post was version 1 (I think?)

    OpenReview (for NeurIPS) for the curious: https://openreview.net/forum?id=jiCLUPq5xv

  • srean 4 hours ago

    Let's assume that monotonocity of pair-wise distances are preserved.

    Without knowing the details of how the paper solved the problem, my first attempt would be to find the diametrically distant pair of points in the two different embeddings and assume that the pair is the same pair. Then find the next distant pairs and so on.

    After sufficiently many such pairs have been found, or better still, the largest d-simplex is found, find that scaled rigid body transformation that makes the corresponding pairs coincide. Proceeding this way ought to be less work than solving a generic graph isomorphism problem.

  • rhelz 2 hours ago

    Cyberphrenology. In any two random graphs, you'll find an isomorphic graph which is can be up to log of the size of the graphs.

    And if the LLM has been trained up to the limit of what data it can hold, it is going to be random. Proof below if it isn't obvious.

    The entire effort of all people who are trying to understand how LLMs work, how they represent their data, its all bound to fail.

    Proof: a LLM is a very good approximation of the Solomonov/Levin/Kolmogorov universal probability function on tokens. As such, it will be random--pure white noise--because if you found any patterns in there, you could exploit the regularity and come up with a smaller set of weights for the same LLM.

    There are no patterns there to be found. They have all been factored out by training the neural net until it couldn't learn any more.

    • sdenton4 an hour ago

      /a smaller set of weights for the same LLM./

      Distillation is alive and well... Earlier work on model printing also found that it's pretty easy to find smaller sets of parameters which can replicate the behavior of the entire network with pretty good fidelity.

      Large parameter counts give space to explore, and give routes out of what would be local minima in a lower dimensional space.

      In other words, there's no guarantee that any given trained model is a minimal representation of its training set.

      • rhelz an hour ago

        I'm not claiming any arbitrary set of weights is a minimal representation. But typically, if people could achieve the same quality of results with a smaller set of weights, or weights which have been quantized to lower bit representations, etc, they would have published the smaller one instead.

    • canjobear 14 minutes ago

      The weights aren’t compressed. So there are interpretable redundancies in practice.

  • measurablefunc 5 hours ago

    What is the (co)homology of this space?