Section outline
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Continue on Basic Concepts in Clustering
f) Hierarchical clustering
Reading: Sec 14.3.12 in ESL
Basic Concepts in Dimensionality Reduction
a) Metric, distance and scalar product
Reading: Sec 4.2.1 in NDR
b) Principal component analysis (PCA)
Reading: Sec 2.4.1-2 (up to Eq. 2.19) in NDR