I may say this presumptiously but I always laugh when people laud AI and ML in trading. The whole key is picking your features, no matter how fancy your model is you put in garbage, you get out garbage.
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In those domains the signal to noise ratio is much higher than in finance though so better chance of learning the important features by example alone.
Feature engineering is really just another way of exploring the bias-variance trade off by introducing stronger priors (high bias) to limit exploration of unprofitable directions in parameter space (low variance)
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I didn't really think about it like that. Very apparent reading
@lopezdeprado 's book. Especially for games as complex as Dota, I honestly was surprised there isn't much feature engineering in openAI's model: https://d4mucfpksywv.cloudfront.net/research-covers/openai-five/network-architecture.pdf …Thanks. Twitter will use this to make your timeline better. UndoUndo
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