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[FEA] PCA initialization for TSNE #3458

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cjnolet opened this issue Feb 4, 2021 · 3 comments · May be fixed by #5897
Open

[FEA] PCA initialization for TSNE #3458

cjnolet opened this issue Feb 4, 2021 · 3 comments · May be fixed by #5897
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feature request New feature or request inactive-30d
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v22.12 Release

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@cjnolet
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cjnolet commented Feb 4, 2021 •
edited

UMAP uses a spectral embedding to initialize points and it was recently demonstrated in this paper that the choice of initialization is important to preserving global structure. The paper also demonstrates that TSNE can preserve global structure fairly well by using PCA to initialize the embeddings.

The PCA initialization is done directly on the training data (using only the first 2 principal components).
@cjnolet cjnolet added feature request New feature or request ? - Needs Triage Need team to review and classify and removed ? - Needs Triage Need team to review and classify labels Feb 4, 2021
@cjnolet cjnolet added this to Needs prioritizing in Feature Planning via automation Feb 4, 2021
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github-actions bot commented Mar 6, 2021

This issue has been labeled inactive-30d due to no recent activity in the past 30 days. Please close this issue if no further response or action is needed. Otherwise, please respond with a comment indicating any updates or changes to the original issue and/or confirm this issue still needs to be addressed. This issue will be labeled inactive-90d if there is no activity in the next 60 days.

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cjnolet commented Apr 14, 2021 •
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Linking #1029 and preferring use of this issue since we have made progress on sparse PCA since the original issue was opened.

@cjnolet cjnolet added this to Issue-Needs prioritizing in v21.06 Release via automation Apr 14, 2021
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This issue has been labeled inactive-30d due to no recent activity in the past 30 days. Please close this issue if no further response or action is needed. Otherwise, please respond with a comment indicating any updates or changes to the original issue and/or confirm this issue still needs to be addressed. This issue will be labeled inactive-90d if there is no activity in the next 60 days.

@dantegd dantegd removed this from Needs prioritizing in Feature Planning May 19, 2021
@dantegd dantegd removed this from Issue-Needs prioritizing in v21.06 Release May 19, 2021
@dantegd dantegd added this to Issue-Needs prioritizing in v21.08 Release via automation May 19, 2021
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@aamijar aamijar linked a pull request May 19, 2024 that will close this issue
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[FEA] PCA Initialization for TSNE aamijar/cuml
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