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weird UMAP results and very inconsistent with CPU results #120

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yubin-ai opened this issue Feb 1, 2024 · 1 comment
Open

weird UMAP results and very inconsistent with CPU results #120

yubin-ai opened this issue Feb 1, 2024 · 1 comment

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@yubin-ai
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yubin-ai commented Feb 1, 2024

Sometimes I find the results from rapids KNN and UMAP very weird. The majoy data points are in center and super small (see below). At the beginning I thought it is the data issue. Today I ran the same data, same parameters with rapids on and off. It shows totally different results and without rapids it looks like a normal UMAP. It seems the UMAP could break with rapids version with some data.

image
@liangxs7015
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Same issue I have met, any suggestions on how to solve it?

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