Very cool. I tried using PNG compression, it does actually do better, slightly: PNG : ~15.1 seconds, 83% accuracy I also tried dropping in zstandard compr

Very cool. I tried using PNG compression, it does actually do better, slightly: PNG : ~15.1 seconds, 83% accuracy I also tried dropping in zstandard compression: Zstd (level=3) : ~3.5 seconds, 88% accuracy Much faster than gzip, at least. And iff I use (x1-x2)*2 instead of x1+x2 to calculate Cx1x2 that pushes zstd up to 93% accuracy. I'm somewhat interested in the fact that if I stack the two arrays on top of each other instead of adding them together, I get absolutely garbage performance (<20%), however as far as I can tell that actually works well when classifying strings.