Online Dictionary Learning for Approximate Archetypal Analysis

Archetypal analysis is an unsupervised learning approach which represents data by convex combinations of a set of archetypes. The archetypes generally correspond to the extremal points in the dataset and are learned by requiring them to be convex combinations of the training data... (read more)

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Methods used in the Paper

Affine Coupling
Bijective Transformation
Normalizing Flows
Distribution Approximation