Artificial Neural Net - Backpropagation (C++)

[sudi]

I guess i will try to put a neural network in my new game(crazy geo). but i will use a genetic algo to evolve them that way the game will hopefully get harder over time. would be really cool if the enemies try to get at u and doge ur shoots.

[JP]

Nice one blindside, i've wanted to do some neural network stuff for a while but never got round to it, too busy with other things and didn't really know where to start to be honest!

Apparently games companies are trying to use (at least some form of) neural networks more now (according to Christian and his 'contacts' in Ubisoft) but in the past they've always been deemed too much work to construct and train and then you're not guaranteed to get any really sensible or desired behaviour out of it at the end, especially if you're dealing with something like FPS enemy AI which is pretty complex.

Anyway, would be cool to somehow get this into IrrAI

[BlindSide]

Yeah would be great if you can shove this into irrAI somehow. Are they really considering neural networks now? It would've been taboo a few years ago. I heard alot of AI programming job applicants get looked down upon simply by showing interest in neural networks.

[JP]

Yeah when i had an interview at a small games company in... erm... Oxford or something.. they were asking if i'd ever tried using a neural network for something like racing AI and i said no i've not tried it i always thought it was very difficult road to go down due to all the uncertainties and their AI programmer said that he'd tried to get it working and it worked well in some cases but terribly in others, probably due to over training or something and as it's such a fine line to get the training right with lots of trial and error it's a pretty huge task to try!

I'll keep a copy of your code with the rest of my AI stuff and when i get a chance, probably not for a while, we'll have to think of some way of using this I guess that sounds like we're just using it for the sake of it... but i think we could find a suitable application for it, maybe something simple like Pong AI would be a good place to start!

[rogerborg]

AI Nerd: And the great thing about this neural net is that I don't really know how it works, so it's not deterministic how it will perform or respond in any given situation. *SNORK* [takes hit of inhaler]

QA manager: I. Will. Kill. You.

[JP]

xD sooo true!