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by blt
2420 days ago
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IMO this is not a problem. The people building insanely huge models are expanding the set of tasks that can be done by a computer. Who cares how much memory it takes? Historically, computationally expensive methods eventually become cheap. In the 1980's, researchers had access to Crays to develop physics model, graphics, etc. requiring lots of floating point math and memory. Meanwhile, for the home computers, game programmers had to implement all their math in fixed point. Nowadays, game engines run the same algorithms that were running on the Crays before. Same with learning. It's great to use tricks to make models fit on phones. Even better: use tricks to make training new models within the budget of a small academic research lab. That doesn't mean we should invalidate all the work that requires a huge cluster. |
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But are they? The example in the article describes an incremental improvement in a benchmark in exchange for a massive increasing in training time.
Deep learning has achieved success on a number of tasks that previously computers had been unable to do. Since the initial period of success, it is an area of debate whether deep learning has expanded it's basic area of applicability or whether is has incrementally on it's initial achievements.
And if it is true that deep learning is stuck on just expanding what it's already doing, it might be the fundamental next advance might come from one person with one machine rather than a massive team with a massive machine. Consider that neural nets as a theory had been around since the 1990s if not the 1960s but the fundamental advantage of DL came when grad students could use GPU in the 2010s, not when massively parallel machines came into existence (quite a bit earlier).
Here, the further wrinkle is that moore's law is gradually ending. We won't access to that much more computing power twenty years hence - so making less do more does make sense.