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Library/ Machine Learning (Supervised + Unsupervised)/ Unsupervised Learning by Building (one technique, two mini projects)/ U03 · Build: Dimensionality Reduction — A: Customer Behaviour Map · B: Handwritten Digits Map

subtopic

Reduce before clustering? (experiment)

10 min applied15 min research1 curated resources

Cluster on scaled features vs on top PCA components; compare silhouette, stability and profiles. Concepts: Dimensionality reduction as preprocessing Project A: Customer segments with vs without PCA. Project B: k-means on raw pixels vs on 20 PCA components: compare ARI with true digit labels.

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Reduce before clustering? (experiment) · 1x1labs.ai