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What's Going on in Machine Learning? Some Minimal Models

writings.stephenwolfram.com

21–30 of 73 posts

Re: What's Going on in Machine Learning? Some Minimal Models

#21
post #19

I believe that this is one of the key takeaways for reasoning about LLMs and other seemingly-magical recent developments in AI: "tasks—like writing essays—that we humans could do, but we didn’t think computers could do, are actually in some sense computationally easier than we thought." It hurts one's pride to realize that the specialized thing they do isn't quite as special as was previously thought.

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Re: What's Going on in Machine Learning? Some Minimal Models

#22
post #11

>All one will be able to say is that somewhere out there in the computational universe there’s some (typically computationally irreducible) process that “happens” to be aligned with what we want. >There’s no overarching theory to it in itself; it’s just a reflection of the resources that were out there. Or, in the case of machine learning, one can expect that what one sees will be to a large extent a reflection of th…

> ChatGPT ended up needing Python tooling to reliably calculate 2+2. This is untrue. ChatGPT very reliably calculates 2+2 without invoking any tooling.

Nit, it predicts that it is the token '4'.

Token frequency in pre-training corpus and the way tokenization is implemented impacts arithmetic proficiency for LLMs.

OpenAI calls this out in the GPT4 technical report.

Re: What's Going on in Machine Learning? Some Minimal Models

#23

I find it depressing that every time Stephen Wolfram wants to explain something, he slowly gravitates towards these simplistic cellular automata and tries to explain everything through them. It feels like a religious talk. The presentation consists of chunks of hard-to-digest, profound-sounding text followed by a supposedly informative picture with lots of blobs, then the whole pattern is repeated over and over. But…

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Re: What's Going on in Machine Learning? Some Minimal Models

#24
post #17

I can never read comments on any wolfram blog on HN because they're always so mean spirited. I'm seeing a nerdy guy explaining things from a cool new perspective I'm excited to read through. The comments almost always have some lens against him being 'self centered' or obsessing about cellular automata (who cares we all have our obsessions)

Same here on anything Elon. HN is like an uncle who knows a lot and teaches you new things every time you hang out with him… but who also has a few really weird sore spots that you better never mention in his presence.

Re: What's Going on in Machine Learning? Some Minimal Models

#25
post #22

Earlier quoted context omitted.

> ChatGPT ended up needing Python tooling to reliably calculate 2+2. This is untrue. ChatGPT very reliably calculates 2+2 without invoking any tooling.

Nit, it predicts that it is the token '4'. Token frequency in pre-training corpus and the way tokenization is implemented impacts arithmetic proficiency for LLMs. OpenAI calls this out in the GPT4 technical report.

You can see this by giving it broken code and seeing what it can predict.

I gave copilot a number of implementations of factorial with the input of 5. When it recognized the correct implementations, it was able to combine the ideas of "factorial", "5", and "correct implementation" to output 120. But when I gave it buggy implementations, it could recognize they were wrong, but the concepts of "factorial", "5", and "incorrect implementation" weren't enough for it to output the correct wrong result produced. Even when I explained its attempts to calculate the wrong output was itself wrong, it couldn't 'calculate' the right answer.

Re: What's Going on in Machine Learning? Some Minimal Models

#26
post #9

Tsetlin machines have been around for some time: https://en.wikipedia.org/wiki/Tsetlin_machine They are discrete, individually interpretable, and can be configured into complicated architectures.

https://www.literal-labs.ai/

These guys are trying to make chips for ML using Tsetlin machines...

Re: What's Going on in Machine Learning? Some Minimal Models

#27
post #24
post #17

I can never read comments on any wolfram blog on HN because they're always so mean spirited. I'm seeing a nerdy guy explaining things from a cool new perspective I'm excited to read through. The comments almost always have some lens against him being 'self centered' or obsessing about cellular automata (who cares we all have our obsessions)

Same here on anything Elon. HN is like an uncle who knows a lot and teaches you new things every time you hang out with him… but who also has a few really weird sore spots that you better never mention in his presence.

Agree - the whole "he's great" vs "he's evil and a con" just gets old.

Everyone is a complex mixture of both.

My dad loved reading and sharing technical subjects with me and is probably part of the reason why I enjoy a good career today.

He also cheated on my mom for 30 years for which we didn't discover until the last 3 years of his life. We didn't have much money growing up. He probably took her out to dinner with money we didn't have.

It's perfectly normal to both love and hate parts of someone, but not reject them as a whole.

Re: What's Going on in Machine Learning? Some Minimal Models

#28
Say what you will about Wolfram: he's a brilliant writer and teacher. The way he's able to simplify complex topics without dumbing them down is remarkable. His visualizations are not only extremely helpful but usually also beautiful, and if you happen to have Mathematica on hand, you can easily reproduce what he's doing. Anytime someone asks me for a quick introduction to LLMs, I always point them to this article of his, which I still think is one of best and most understandable introductions to the topic:

https://writings.stephenwolfram.com/2023/02/what-is-chatgpt-...

Re: What's Going on in Machine Learning? Some Minimal Models

#29
post #27
post #24

Earlier quoted context omitted.

Same here on anything Elon. HN is like an uncle who knows a lot and teaches you new things every time you hang out with him… but who also has a few really weird sore spots that you better never mention in his presence.

Agree - the whole "he's great" vs "he's evil and a con" just gets old. Everyone is a complex mixture of both. My dad loved reading and sharing technical subjects with me and is probably part of the reason why I enjoy a good career today. He also cheated on my mom for 30 years for which we didn't discover until the last 3 years of his life. We didn't have much money growing up. He probably took her out to dinner with…

Elon's not more evil than anyone else, he's just way dumber than everyone expected him to be when we were in the honeymoon phase.

Re: What's Going on in Machine Learning? Some Minimal Models

#30

Classic Wolfram — brilliant, reimplements / comes at a current topic using only cellular automata, and draws some fairly deep philosophical conclusions that are pretty intriguing. The part I find most interesting is his proposal that neural networks largely work by “hitching a ride” on fundamental computational complexity, in practice sort of searching around the space of functions representable by an architecture fo…

> And, to the extent this is true, that puts explainability at fundamental odds with the highest value / most dense / best deep learning outputs — if they are easily “explainable” by inspection, then they are likely not using all of the complexity available to them.

Could you define explainability in this context?

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