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A changepoint analysis of spatio-temporal point processes
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dc.contributor.author | Altieri, Linda | |
dc.contributor.author | Scott, E. Marian | |
dc.contributor.author | Cocchi, Daniela | |
dc.contributor.author | Illian, Janine B. | |
dc.date.accessioned | 2016-06-04T23:32:33Z | |
dc.date.available | 2016-06-04T23:32:33Z | |
dc.date.issued | 2015 | |
dc.identifier.citation | Altieri , L , Scott , E M , Cocchi , D & Illian , J B 2015 , ' A changepoint analysis of spatio-temporal point processes ' , Spatial Statistics . https://doi.org/10.1016/j.spasta.2015.05.005 | en |
dc.identifier.issn | 2211-6753 | |
dc.identifier.other | PURE: 193833318 | |
dc.identifier.other | PURE UUID: 7feb0d44-91a7-4288-af21-2d6b86800a03 | |
dc.identifier.other | RIS: urn:099D61B8750E7EDC20D30E349A17C092 | |
dc.identifier.other | Scopus: 84933575779 | |
dc.identifier.other | WOS: 000368913100007 | |
dc.identifier.uri | https://hdl.handle.net/10023/8935 | |
dc.description | As regards author Linda Altieri, the research work underlying this paper was partially funded by a FIRB 2012 grant (project no. RBFR12URQJ; title: Statistical modeling of environmental phenomena: pollution, meteorology, health and their interactions) for research projects by the Italian Ministry of Education, Universities and Research. | en |
dc.description.abstract | This work introduces a Bayesian approach to detecting multiple unknown changepoints over time in the inhomogeneous intensity of a spatio-temporal point process with spatial and temporal dependence within segments. We propose a new method for detecting changes by fitting a spatio-temporal log-Gaussian Cox process model using the computational efficiency and flexibility of integrated nested Laplace approximation, and by studying the posterior distribution of the potential changepoint positions. In this paper, the context of the problem and the research questions are introduced, then the methodology is presented and discussed in detail. A simulation study assesses the validity and properties of the proposed methods. Lastly, questions are addressed concerning potential unknown changepoints in the intensity of radioactive particles found on Sandside beach, Dounreay, Scotland. | |
dc.language.iso | eng | |
dc.relation.ispartof | Spatial Statistics | en |
dc.rights | © 2015, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (http://creativecommons.org/licenses/by-nc-nd/4.0/) | en |
dc.subject | Spatio-temporal point processes | en |
dc.subject | Changepoint analysis | en |
dc.subject | INLA | en |
dc.subject | Radioactive particle data | en |
dc.subject | QA Mathematics | en |
dc.subject | NDAS | en |
dc.subject.lcc | QA | en |
dc.title | A changepoint analysis of spatio-temporal point processes | en |
dc.type | Journal article | en |
dc.description.version | Postprint | en |
dc.contributor.institution | University of St Andrews. School of Mathematics and Statistics | en |
dc.contributor.institution | University of St Andrews. Scottish Oceans Institute | en |
dc.contributor.institution | University of St Andrews. Centre for Research into Ecological & Environmental Modelling | en |
dc.identifier.doi | https://doi.org/10.1016/j.spasta.2015.05.005 | |
dc.description.status | Peer reviewed | en |
dc.date.embargoedUntil | 2016-06-05 |
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