Google Research

A Better k-means++ Algorithm via Local Search

ICML 2019

Abstract

In this paper, we develop a new variant of $k$-means++ seeding that in expectation achieves a constant approximation guarantee. We obtain this result by a simple combination of $k$-means++ sampling with a local search strategy.

We evaluate our algorithm empirically and show that it also improves the quality of a solution in practice.

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