Level Sets or Gradient Lines? A Unifying View of Modal Clustering

09/17/2021

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by   Ery Arias-Castro, et al.

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The paper establishes a strong correspondence, if not an equivalence, between two important clustering approaches that emerged in the 1970's: clustering by level sets or cluster tree as proposed by Hartigan and clustering by gradient lines or gradient flow as proposed by Fukunaga and Hosteler.