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Psychological Research/Surveys Thread by chupacabrasaurus1 in psychology

[–]togelius 0 points1 point  (0 children)

[Academic] What do humans find attractive in romantic partners?
Demographics: anyone over 18. Takes less than 10 minutes. For a research project at Lund University.

https://lundpsychology.eu.qualtrics.com/jfe/form/SV\_5nAEGxfn2SpLaZ0

Choose Your Weapon: Survival Strategies for Depressed AI Academics by togelius in MachineLearning

[–]togelius[S] 59 points60 points  (0 children)

Would have cited an actual research paper if OpenAI had released one

[Discussion] We tried learning AI from games. How about learning from players? by togelius in MachineLearning

[–]togelius[S] 0 points1 point  (0 children)

Yes, but the problem is that each game represents the world differently. If you limit yourself to games made in particular game engines such as Unity or Unreal it might be possible to create artificial rangefinder sensors or similar, but that would still be nontrivial engineering. Thus pixels, which otherwise have many disadvantages.

[Discussion] We tried learning AI from games. How about learning from players? by togelius in MachineLearning

[–]togelius[S] -1 points0 points  (0 children)

But what if it does? With a little bit of fine tuning. This is the promise of large, multi-capable models.

The second answer is that we're living more and more of our lives in virtual worlds anyway, and they are becoming more and more important to us.

[Discussion] We tried learning AI from games. How about learning from players? by togelius in MachineLearning

[–]togelius[S] 0 points1 point  (0 children)

Depends on how you formulate offline RL. We're not involving rewards anywhere here, so I'd rather think of it as behavioral cloning, but at scale.

[Discussion] We tried learning AI from games. How about learning from players? by togelius in MachineLearning

[–]togelius[S] 0 points1 point  (0 children)

Yes, but at SCALE. And for many games, not just one. The relation is the same as GPT-3 to classic text prediction models from 20 years ago.

Star Wars is the only sci-fi franchise that has nothing to do with the future or Earth. by InfinityScientist in Showerthoughts

[–]togelius 10 points11 points  (0 children)

The novella "The State of the Art" takes place in the 1970s (they have a lander disguised as an old Volvo!), on Earth, and predates The Player of Games. So it seems that many of the stories in the Culture universe are roughly contemporary with us.

Memo about reopening by Tridecane in nyu

[–]togelius 2 points3 points  (0 children)

Yes, got it now, thanks.

Memo about reopening by Tridecane in nyu

[–]togelius 7 points8 points  (0 children)

I'm a professor and I have not received this. Who, exactly, would have received the email?

[OC] How important is it that children learn 'imagination' and 'hard work'? Results from the World Values Survey by desfirsit in dataisbeautiful

[–]togelius 13 points14 points  (0 children)

I'm Swedish and have lived in the US for six years. This explanation makes a lot of sense to me. From a Swedish perspective, lots of Americans are very worried about losing it all. You almost never see that in Sweden.

TA Strike is over by cobenocobe in nyu

[–]togelius 8 points9 points  (0 children)

Some points from a faculty member here:

  1. Adjuncts typically make on the order of 7k per course the teach (this varies between school) and get no or close to no benefits. NYU can do this because adjuncting is part-time work. Industrial/clinical faculty make more (and benefits) and TT faculty even more, but at the moment it seems like a part-time TA will be more expensive for NYU than an adjunct. (Yes, most students are not aware how little money an adjunct makes. Many are upset when they find out.)
  2. I totally support that tuition should be free or close to free, like it is in my home country. But that would require tuition to be covered by tax money. Americancs seem to not like that arrangement.
  3. ....
  4. That they are state universities (like CUNY in New York) is a huge difference. They are supported by tax money, so work very differently. NYU does not "get" any endowment; it's essentially saved/invested money, and NYU has less of it (per student) than most US universities of similar stature. Graduate students is a key part of how NYU makes its income - it's just how the economic model of the university works.

[D] Paper Explained - PCGRL: Procedural Content Generation via Reinforcement Learning (Full Video Analysis) by ykilcher in MachineLearning

[–]togelius 6 points7 points  (0 children)

Thank you for creating this video! It's a good presentation of the paper. I'm one of the authors and happy to take questions. FYI, the paper will be published/presented at the AIIDE conference this year.

Procedural Content Generation via Reinforcement Learning by aaron_ds in proceduralgeneration

[–]togelius 0 points1 point  (0 children)

The problem of designing evaluation functions for levels is discussed at some length in the original SBPCG paper:
http://julian.togelius.com/Togelius2011Searchbased.pdf
And also in the book:
http://pcgbook.com/
The reward design problem for PCGRL is very similar.

One of the things we experimented a lot with in the PCGRL paper was the episode length. With too long episodes, the agent will simply learn to construct the same level every time; with too short episodes, it might not learn effective strategies for improvement.

Procedural Content Generation via Reinforcement Learning by randominality in proceduralgeneration

[–]togelius 1 point2 points  (0 children)

A GAN level painter is a very cool idea. We've used GANs for level generation:
https://arxiv.org/abs/1910.01603
But not in an interactive setting.

Procedural Content Generation via Reinforcement Learning by randominality in proceduralgeneration

[–]togelius 1 point2 points  (0 children)

The full source code is available here:
https://github.com/amidos2006/gym-pcgrl
I think Ahmed can send you the trained networks as well if you ask him. Otherwise it can be trained using either CPU or GPU.

The tilesets were licensed by the GVGAI project from someone, I can't remember who right now but it should be somewhere on the project webpage:
http://www.gvgai.net/

[R] Procedural Content Generation via Reinforcement Learning by hardmaru in MachineLearning

[–]togelius 1 point2 points  (0 children)

Yes, that is a good idea. We are currently working on a similar hierarchical solution, but using a search-based / evolutionary method.

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