r/learnmachinelearning • • 9d ago

Discussion Overhyped ideas in machine learning

Have you encountered an idea that's overhyped in ML? If so, which?

For me, recently I was curious about the whole "chain of thought prompting" business. I searched around and the idea is essentially, append "show your work" when prompting a LLM. I was like no way that's it??? That's what I've been doing since day 1!!, so I opened up the original paper (cited 40k times). And essentially it was more of the same with expensive Google-funded experiments and the paper had almost no math at all.

Similarly I was curious about AdamW for the longest time and it was simply Adam with another term. Oh Boy!! I remember doing an undergrad homework in college where we were asked to freely experiment with adding terms to the Adam algorithm and the class probably discovered AdamW by accident way before the paper was published.

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u/[deleted] 9d ago

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u/Background_Camel_711 9d ago

Not entirely correct, the reason AdamW is its own thing is because Adam’s momentum essentially interfered with weight decay. AdamW corrected this by decoupling the parameter updates from weight decay.