Standardizing data before applying UMAP
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Description
Is standardization required before applying UMAP method on the dataset. I have gone through the notebooks provided, but the toy data used is from uniform distribution for which values are in [0,1).
If standardization is required, how critical is it when compared to standardization before applying PCA. PCA gives quite different results(rightly so) with/without standardization and with/without the presence of outliers.
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First steps
- Read the whole issue, then the project's contributing guide.
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Research direction
Start by reviewing the provided notebooks and the UMAP context described in the issue, then compare behavior with and without standardization and outliers. Done means documenting an evidence-based answer about whether standardization is required and how its importance compares with PCA.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- machine-learning
- Issue type
- Documentation
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100