The UU-test for statistical modeling of unimodal data

作者:

Highlights:

• We propose UU-test that is a new method for deciding on dataset unimodality.

• The method attempts to approximate the empirical cdf of the dataset using a cdf that is piecewise linear, unimodal and models the data sufficiently.

• A unique feature is that the method also provides a statistical model of a unimodal dataset in the form of a uniform mixture model.

• The method can be employed in various data analysis tasks (e.g. clustering) where deciding on dataset unimodality is important.

摘要

•We propose UU-test that is a new method for deciding on dataset unimodality.•The method attempts to approximate the empirical cdf of the dataset using a cdf that is piecewise linear, unimodal and models the data sufficiently.•A unique feature is that the method also provides a statistical model of a unimodal dataset in the form of a uniform mixture model.•The method can be employed in various data analysis tasks (e.g. clustering) where deciding on dataset unimodality is important.

论文关键词:Unimodal data,Unimodality test,Statistical modeling,Uniform mixture model

论文评审过程:Received 21 July 2020, Revised 17 August 2021, Accepted 20 August 2021, Available online 29 August 2021, Version of Record 4 September 2021.

论文官网地址:https://doi.org/10.1016/j.patcog.2021.108272