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What is GPT-3? written in layman's terms

tinkeredthinking.com

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Re: What is GPT-3? written in layman's terms

#11
A comment from r/machinelearning:

"It seems obvious from the demos that GPT-3 is capable of reasoning.

But not consistently.

It would be critical, imo, to see if we can identify a pattern of activity in it associated with the lucid responses vs activity when it prodcues nonsense.

If/when we have such a apattern we would need to find a way to enforce it to happen in every interaction"

And people agree:

"Dunno why you are getting downvoted, I agree with you. It seems like to get GPT-3 to do good reasoning you have to convince it that it is writing about a dialogue between two smart people. Talking to Einstein, giving some good examples, etc. all seem to help. Shaping really seems to matter, but I don’t think we have enough access to the hidden state to determine if there are quantitative differences between when it is more lucid and when it isn’t.

It’s like Gwern said: “sampling cannot prove the absence of knowledge, only the presence of it” (because whenever it fails, maybe with a different context, different sampling parameters, using spaces between letters, etc. it would have worked)"

Its interesting that this kind of speculation is entering the conversation. I think we are on the cusp

Re: What is GPT-3? written in layman's terms

#14
post #9
post #8

> GPT-3 continuation: A confused voice came from inside. When I opened the door, the person that looked back at me was Hayama Hayato. Why was Hayama, who I only shared memories of me playing soccer with, in my room at this hour of the night? That question immediately flew out from my mouth. [I knew that name felt familiar]( https://oregairu.fandom.com/wiki/Hayato_Hayama ). Does that mean GPT-3 was trained on an arbit…

> Does that mean GPT-3 was trained on an arbitrary, huge database of text? Yes, 500 billion words, for a model with model 175 billion parameters.

So that continues my question: how much of that text would be on the private domain? If there is, is it all legally purchased?

Re: What is GPT-3? written in layman's terms

#16
post #14
post #9

Earlier quoted context omitted.

> Does that mean GPT-3 was trained on an arbitrary, huge database of text? Yes, 500 billion words, for a model with model 175 billion parameters.

So that continues my question: how much of that text would be on the private domain? If there is, is it all legally purchased?

I’m sure some lawyers figured it out (fair use maybe?) but they basically used scraped content from Common Crawl. Trying to figure out how to license that would be harder than trying to get all the land rights for a railroad across the US. So... probably not purchased.

Re: What is GPT-3? written in layman's terms

#17
I have some issues with how this article describes GPT and its impact. The scenarios that are described as using GPT-3 remains the stuff of science fiction as far as I know. They would require major technological breakthroughs in areas of autonomous agents, combining language models with 'concept-based' models, and more mundane things like labelling (can you imagine how difficult it would take to accurately label all legislation for 'nefarious details', given that even humans can't agree on what is nefarious?).

More specifically:

- training on data is a lossy process. In your examples, GPT would actually have a worse memory than your lawyer or therapist. There is no way to combine language models and something more abstract like 'facts'.

- GPT has shown zero ability to do anything consistently successfully without a human-in-the-loop. When it comes to bring AI models into production, this matters a lot. There's no way autonomous therapists are coming from GPT-3 when half the time the model spews out potentially dangerous garbage. You can't teach GPT-3 to not hurt people because it has no concept of people or hurting them. It JUST knows the shape of English.

- GPT is an unsupervised (in terms of data labelling work required) model. It has not made any breakthroughs in requiring labelled data for fine-tuning the model to do a specific task. Which remains a gigantic problem for productionalizing models. Like how are you going to build an autonomous therapist? That data remains as inaccessible and impossible to label as ever.

- Please stop telling people that neural nets are related to brain neurons. They have essentially no relationship other than the name and it just fosters this fear of Terminator and obscures the real issues that need to be thought about. This is just my personal opinion but I'm so tired of having to spend my time telling otherwise smart people who don't know better that we aren't close to Terminator.

GPT is an impressive technical accomplishment, but it's impact on the world has been exaggerated quite a bit IMO. Some of the demos I've seen are almost certainly smoke and mirrors or very carefully chosen, human-in-the-loop examples.

Re: What is GPT-3? written in layman's terms

#18
> So embeddings are bits of binary code that are associated with the words and word-snippets that the computer ‘reads’. These embeddings never change.

I'm not entirely sure but I think this definition of embedding is wrong: first they are not binary, they are floats (as the other parameters/weights) and they do change, as the error backpropagates through them. They are simply "swappable parameters", explicitly corresponding to each word, thus it's possible to detach and reuse them for other purposes after training, which is not necessarily easy (or meaningful) with any other weight matrix in a model.

Re: What is GPT-3? written in layman's terms

#19
post #8

> GPT-3 continuation: A confused voice came from inside. When I opened the door, the person that looked back at me was Hayama Hayato. Why was Hayama, who I only shared memories of me playing soccer with, in my room at this hour of the night? That question immediately flew out from my mouth. [I knew that name felt familiar]( https://oregairu.fandom.com/wiki/Hayato_Hayama ). Does that mean GPT-3 was trained on an arbit…

There's an open question if GPT-3 simply provides a text completion API for the internet. The original paper discusses the risk that datasets for specific evaluation tasks (or equivalents) were simply memorized by the model.

A completion API for the internet could still be an incredibly valuable component.

Re: What is GPT-3? written in layman's terms

#20

A comment from r/machinelearning: "It seems obvious from the demos that GPT-3 is capable of reasoning. But not consistently. It would be critical, imo, to see if we can identify a pattern of activity in it associated with the lucid responses vs activity when it prodcues nonsense. If/when we have such a apattern we would need to find a way to enforce it to happen in every interaction" And people agree: "Dunno why you…

I think the downvotes are from people who don't want to believe that AGI is possible, or that we're taking baby steps towards it.
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