A flexible Bayesian mixture approach for multi-modal circular data

Year 2022, Volume: 51 Issue: 4, 1160 - 1173, 01.08.2022

Muhammet Burak Kılıç , Zeynep Kalaylıoğlu , Ashıs Sengupta

https://doi.org/10.15672/hujms.897144

Cited By: 1

Abstract

In this article, we consider multi-modal circular data and nonparametric inference. We introduce a doubly flexible method based on Dirichlet process circular mixtures in which parameter assumptions are relaxed. We assess and discuss in simulation studies the efficiency of the proposed extension relative to the standard finite mixture applications in the analysis of multi-modal circular data. The real data application shows that this relaxed approach is promising for making important contributions to our understanding of many real-life phenomena particularly in environmental sciences such as animal orientations.

Keywords

directional data, Dirichlet process prior, mixture models, stick breaking construction, animal orientation

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