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Beware that the first tweet uses t-SNE, which is an older algorithm that UMAP tries to improve. There's also an image with a newer version of UMAP further down
by sigmoid10 4y ago
Beware that the first tweet uses t-SNE, which is an older algorithm that UMAP tries to improve. There's also an image with a newer version of UMAP further down and while the big squiggly line artifacts are reduced, a lot of the structure remains and it looks much less like the random numbers image from the blog or the t-SNE version. Still, I think it's safe to say that any fancy structure here is more likely a result of the algorithm and less of an actual structure in the numbers.
- nerdponx 4y agoI think the point of using t-SNE was to suggest that if the structure were legitimate that t-SNE would find at least some of it. This is both an interesting/fun visualization exercise and a cautionary story. Apparently UMAP has a tendency to render blobs as rings or loops!