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UMAP produces different results with the same parameters for a loop #466

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xuzhendong2016 opened this issue Jul 19, 2020 · 2 comments
Open

UMAP produces different results with the same parameters for a loop #466

xuzhendong2016 opened this issue Jul 19, 2020 · 2 comments

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@xuzhendong2016
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xuzhendong2016 commented Jul 19, 2020 •
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hello，

why the results are inconsistent for each loop？ where the parameters and data are not changed.
The code is as follows：

image

The results are as follows：
image

Why are they different？ please.
Thanks a lot in advance.
@lmcinnes
@xuzhendong2016 xuzhendong2016 changed the title UMAP produces different results with same parameters for a loop UMAP produces different results with the same parameters for a loop Jul 19, 2020
@Fil
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Fil commented Jul 20, 2020 •
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References: https://umap-learn.readthedocs.io/en/latest/reproducibility.html & #298

@jonaslandsgesell
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Have a look at rapidsai/cuml#5099 (comment)
Providing a random state and init="random" to UMAP (i.e. UMAP(n_neighbors=15, random_state=1, init="random")) generates deterministic behavior for me.

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@Fil @jonaslandsgesell @xuzhendong2016