I've tried PCA (and perhaps more usefully, UMAP) and while can be great for stuff like unsupervised learning, I think the trick is to choose a classifier (as pe

I've tried PCA (and perhaps more usefully, UMAP) and while can be great for stuff like unsupervised learning, I think the trick is to choose a classifier (as per my comment above) that can do a good job with high-dimensional data.