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CS234: Reinforcement Learning Winter 2025 (web.stanford.edu)
pedrolins 28 minutes ago [-]
I was excited to check out lecture videos thinking they were public, but quickly saw that they were closed.

One of the things I miss most about the pandemic was how all of these institutions opened up for the world. Lately they have been closing down not only newer course offerings but also putting old videos private. Even MIT OCW falls apart once you get into some advanced graduate courses.

I understand that universities should prioritize their alumni, but there’s literally no cost in making the underlying material (especially lectures!) available on the internet. It delivers immense value to the world.

sillysaurusx 9 hours ago [-]
It’s been said that RL is the worst way to train a model, except for all the others. Many prominent scientists seem to doubt that this is how we’ll be training cutting edge models in a decade. I agree, and I encourage you to try to think of alternative paradigms as you go through this course.

If that seems unlikely, remember that image generation didn’t take off till diffusion models, and GPTs didn’t take off till RLHF. If you’ve been around long enough it’ll seem obvious that this isn’t the final step. The challenge for you is, find the one that’s better.

PaulRobinson 2 hours ago [-]
You're assuming that people are only interested in image and text generation.

RL excels at learning control problems. It is mathematically guaranteed to provide an optimal solution for the state and controls you provide it, given enough runtime. For some problems (playing computer games), that runtime is surprisingly short.

There is a reason self-driving cars use RL, and don't use GPTs.

srean 1 hours ago [-]
You are exactly right.

Control theory and reinforcement learning are different ways of looking at the same problem. They traditionally and culturally focussed on different aspects.

whatshisface 8 hours ago [-]
RL is barely even a training method, its more of a dataset generation method.
theOGognf 7 hours ago [-]
I feel like both this comment and the parent comment highlight how RL has been going through a cycle of misunderstanding recently from another one of its popularity booms due to being used to train LLMs
phyalow 2 hours ago [-]
Its reductive, but also roughly correct.
mistercheph 5 hours ago [-]
care to correct the misunderstanding?
paswut 7 hours ago [-]
What about for combinatorial optimization? When you have a simulation of the world what other paradigms are fitting
whatever1 4 hours ago [-]
More likely we will develop general super intelligent AI before we (together with our super intelligent friends) solve the problem of combinatorial optimization.
hyperbovine 1 hours ago [-]
There's nothing to solve. The CoD kills you no matter what. P=NP or maybe quantum computing is the only hope of making serious progress on large-scale combinatorial optimization.
charcircuit 6 hours ago [-]
GPT wouldn't have even been possible, let alone take off, without self supervised learning.
kgarten 8 hours ago [-]
Are the videos available somewhere?

spring course is on YouTube https://m.youtube.com/playlist?list=PLoROMvodv4rN4wG6Nk6sNpT...

zerosizedweasle 9 hours ago [-]
Given Ilya's podcast this is an interesting title.
TNWin 1 hours ago [-]
I didn't get the reference. Please elaborate.
actionfromafar 1 hours ago [-]
So, basically AI Winter? :-)
airspresso 45 minutes ago [-]
That's how I read it XD "oh no, RL is dead too"
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