[NVHacker]

Alpha Star was also trained initially from youtube videos of pros playing Starcraft. I would argue that it was pretty trivial a few years ago.

[rcxdude]

I don't think it was videos. Almost certainly it was replay files with a bunch of work to transform them into something that could be compared to the model's outputs. (Alphastar never 'sees' the game's interface, only a transformed version of information available via an API)

[stingraycharles]

This was my understanding as well, as the replay files are all available anyway.

The YouTube documentary is actually very detailed about how they implemented everything.

[SpaceManNabs]

Which documentary? Is it this one?

https://www.youtube.com/watch?v=UuhECwm31dM

[stingraycharles]

It was a ~1h documentary

[ismailmaj]

Do you know if it was actual videos or some simpler inputs like game state and user inputs? I’d be impressed if it was the former at that time.

[johnny22]

starcraft provides replay files that start with the initial game state and then every action in the game. Not user inputs, but the actions bound to them.