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dc.contributor.authorScott Hayward, Lindesay Alexandra Sarah
dc.contributor.authorMacKenzie, Monique Lea
dc.contributor.authorDonovan, Carl Robert
dc.contributor.authorWalker, Cameron
dc.contributor.authorAshe, Erin
dc.identifier.citationScott Hayward , L A S , MacKenzie , M L , Donovan , C R , Walker , C & Ashe , E 2011 , Complex Region Spatial Smoother (CReSS) . CREEM Technical Report , no. 2011-2 , University of St Andrews .en
dc.identifier.otherPURE: 15725189
dc.identifier.otherPURE UUID: 662af2ed-5dcd-40fb-b511-a34589876c09
dc.descriptionThis work is supported with funding from NERC UKen
dc.description.abstractConventional smoothing over complicated coastal and island regions may result in errors across boundaries, due to the use of Euclidean distances to represent inter-point similarity. The new Complex Region Spatial Smoother (CReSS) method presented here, uses estimated geodesic distances, model averaging and a local radial basis function to provide improved smoothing over complex domains. CReSS is compared, via simulation, to recent related smoothing techniques, Thin Plate Splines (TPS, Harder and Desmarais, 1972), geodesic low rank TPS [Wang and Ranalli, 2007] and the Soap film smoother [Wood et al., 2008]. The GLTPS method cannot be used in areas with islands and SOAP can be hard to parameterize. CReSS is comparable with, if not better than, all considered methods on a range of simulations. Supplementary materials for this article are available online.
dc.publisherUniversity of St Andrews
dc.relation.ispartofseriesCREEM Technical Reporten
dc.subjectGeodesic distanceen
dc.subjectLocal radial basisen
dc.subjectThin plate splinesen
dc.subjectModel averagingen
dc.subjectQA Mathematicsen
dc.titleComplex Region Spatial Smoother (CReSS)en
dc.contributor.institutionUniversity of St Andrews.School of Biologyen
dc.contributor.institutionUniversity of St Andrews.School of Mathematics and Statisticsen
dc.contributor.institutionUniversity of St Andrews.Statisticsen
dc.contributor.institutionUniversity of St Andrews.Centre for Research into Ecological & Environmental Modellingen
dc.contributor.institutionUniversity of St Andrews.Scottish Oceans Instituteen

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