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Megatron-Turing NLG 530B, the World’s Largest Generative Language Model

developer.nvidia.com

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Re: Megatron-Turing NLG 530B, the World’s Largest Generative Language Model

#4
post #2

This reminds me a little bit of the early 2000's where search engines would list the number of indexed pages on their homepage. For language models, does large = good? I'm guessing the quality of the corpus matters as much.

I'm not sure it moves the needle on NLU/classification tasks very much, compared to models with many fewer parameters. But it does seem to make the NLG better, which is what Microsoft seems obsessed with lately.

Re: Megatron-Turing NLG 530B, the World’s Largest Generative Language Model

#5
So we now have models with 0.5 trillion parameters, each the weight of a connection in a neural network.

Trillion-parameter models are surely within reach in the near term -- and that's only within two orders of magnitude of the number of synapses in the human brain, which is in the hundreds of trillions, give or take. To paraphrase the popular saying, a trillion here, a trillion there, and pretty soon you're talking really big numbers.

I know the figures are not comparable apples-to-apples, but still, I find myself in awe looking at how far we've come in just the last few years, to the point that we're realistically contemplating the possibility of seeing dense neural networks with hundreds of trillions of parameters used for real-world applications in our lifetime.

We sure live in interesting times.

Re: Megatron-Turing NLG 530B, the World’s Largest Generative Language Model

#7
post #2

This reminds me a little bit of the early 2000's where search engines would list the number of indexed pages on their homepage. For language models, does large = good? I'm guessing the quality of the corpus matters as much.

>For language models, does large = good?

The short answer is yes, the long answer is it's complicated.

You could actually think of these models as a type of indexer because, at their heart, what they are doing is memorizing the training data and storing it in such a way that incomplete samples can be used as keys to extract complete samples. The magic happens because the models themselves (even the 100+ billion parameter ones) are nowhere near complex enough to actually store all of these possible key value pairs. Instead, the model has to compress its representation of the data which leads to generalization. Larger models can model more complexities which leads to better performance as long as your training dataset is sufficiently large and varied.

Re: Megatron-Turing NLG 530B, the World’s Largest Generative Language Model

#8
post #5

So we now have models with 0.5 trillion parameters, each the weight of a connection in a neural network. Trillion-parameter models are surely within reach in the near term -- and that's only within two orders of magnitude of the number of synapses in the human brain, which is in the hundreds of trillions, give or take. To paraphrase the popular saying, a trillion here, a trillion there, and pretty soon you're talking…

Not all weights are born equal, different paradigms allow more parameters while being less parameter-efficient, e.g. https://openreview.net/forum?id=TXqemS7XEH

Re: Megatron-Turing NLG 530B, the World’s Largest Generative Language Model

#10
post #5

So we now have models with 0.5 trillion parameters, each the weight of a connection in a neural network. Trillion-parameter models are surely within reach in the near term -- and that's only within two orders of magnitude of the number of synapses in the human brain, which is in the hundreds of trillions, give or take. To paraphrase the popular saying, a trillion here, a trillion there, and pretty soon you're talking…

Unless we have misunderstood neurons, and microtubules are the fundamental computational unit in which case we are out by an order of magnitude
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