I have not, but I'm sure there are some open source distro's that could be analyzed. Probably not much help here but that's what came to mind. 
Custom Engine Programs
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I'm curious, has anyone ever built their own engine? It doesn't have to be a whole GUI or anything, just the machine learning aspect. I've been working on it in my free time and wondering what algorithms you're using, how you're doing it, and what values you're setting to determine the score.