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Check out PaCMAP, AFAIK it’s the current SoTA in dimensionality reduction: https://github.com/YingfanWang/PaCMAP

Yes, also TriMap does quite well. PacMAP is faster though. This paper [1] (linked at the GitHub repo you have mentioned) goes into a fantastic amount of detail in comparing UMAP, t-sne, PacMAP and TriMAP.

[1] https://jmlr.org/papers/volume22/20-1061/20-1061.pdf

Thanks for the link, that is a really nice paper!

I found it really refreshing that they report a bunch of stuff they tried that didn’t work in a way that clarifies the problem and leads to a lot of insight into the strengths and limitations of their final method and the leading alternatives

You're welcome! There is a talk too [1], which is how I had learned about the paper.

[1] https://www.youtube.com/watch?v=sD-uDZ8zXkc

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