Non‐parametric Bayesian covariate‐dependent multivariate functional clustering: An application to time‐series data for multiple air pollutants

Daewon Yang, Taeryon Choi, Eric Lavigne and Yeonseung Chung

Journal of the Royal Statistical Society Series C, 2022, vol. 71, issue 5, 1521-1542

Abstract: Air pollution is a major threat to public health. Understanding the spatial distribution of air pollution concentration is of great interest to government or local authorities, as it informs about target areas for implementing policies for air quality management. Cluster analysis has been popularly used to identify groups of locations with similar profiles of average levels of multiple air pollutants, efficiently summarising the spatial pattern. This study aimed to cluster locations based on the seasonal patterns of multiple air pollutants incorporating the location‐specific characteristics such as socio‐economic indicators. For this purpose, we proposed a novel non‐parametric Bayesian sparse latent factor model for covariate‐dependent multivariate functional clustering. Furthermore, we extend this model to conduct clustering with temporal dependency. The proposed methods are illustrated through a simulation study and applied to time‐series data for daily mean concentrations of ozone (O3$$ {\mathrm{O}}_3 $$), nitrogen dioxide (NO2$$ \mathrm{N}{\mathrm{O}}_2 $$), and fine particulate matter (PM2.5$$ \mathrm{P}{\mathrm{M}}_{2.5} $$) collected for 25 cities in Canada in 1986–2015.

Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://doi.org/10.1111/rssc.12589

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:bla:jorssc:v:71:y:2022:i:5:p:1521-1542

Ordering information: This journal article can be ordered from
http://ordering.onli ... 1111/(ISSN)1467-9876

Access Statistics for this article

Journal of the Royal Statistical Society Series C is currently edited by R. Chandler and P. W. F. Smith

More articles in Journal of the Royal Statistical Society Series C from Royal Statistical Society Contact information at EDIRC.
Bibliographic data for series maintained by Wiley Content Delivery ().