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Analysis of Forest Fires by means of Pseudo Phase Plane and Multidimensional Scaling Methods

dc.contributor.authorMachado, J.A.Tenreiro
dc.contributor.authorLopes, António M.
dc.date.accessioned2016-12-14T12:30:56Z
dc.date.available2016-12-14T12:30:56Z
dc.date.issued2014-06
dc.description.abstractForest fires dynamics is often characterized by the absence of a characteristic length-scale, long range correlations in space and time, and long memory, which are features also associated with fractional order systems. In this paper a public domain forest fires catalogue, containing information of events for Portugal, covering the period from 1980 up to 2012, is tackled. The events are modelled as time series of Dirac impulses with amplitude proportional to the burnt area. The time series are viewed as the system output and are interpreted as a manifestation of the system dynamics. In the first phase we use the pseudo phase plane (PPP) technique to describe forest fires dynamics. In the second phase we use multidimensional scaling (MDS) visualization tools. The PPP allows the representation of forest fires dynamics in two-dimensional space, by taking time series representative of the phenomena. The MDS approach generates maps where objects that are perceived to be similar to each other are placed on the map forming clusters. The results are analysed in order to extract relationships among the data and to better understand forest fires behaviour.pt_PT
dc.identifier.doi10.1155/2014/575872pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.22/8809
dc.language.isoengpt_PT
dc.publisherHindawipt_PT
dc.relation.publisherversionhttp://www.hindawi.com/journals/mpe/2014/575872/pt_PT
dc.titleAnalysis of Forest Fires by means of Pseudo Phase Plane and Multidimensional Scaling Methodspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage9pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleMathematical Problems in Engineeringpt_PT
oaire.citation.volume2014pt_PT
person.familyNameTenreiro Machado
person.givenNameJ. A.
person.identifier.ciencia-id7A18-4935-5B29
person.identifier.orcid0000-0003-4274-4879
person.identifier.ridM-2173-2013
person.identifier.scopus-author-id55989030100
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication82cd5c17-07b6-492b-b3e3-ecebdad1254f
relation.isAuthorOfPublication.latestForDiscovery82cd5c17-07b6-492b-b3e3-ecebdad1254f

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