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Fractal and Entropy Analysis of the Dow Jones Index Using Multidimensional Scaling

dc.contributor.authorMachado, J. A. Tenreiro
dc.date.accessioned2021-10-01T10:15:55Z
dc.date.available2021-10-01T10:15:55Z
dc.date.issued2020
dc.description.abstractFinancial time series have a fractal nature that poses challenges for their dynamical characterization. The Dow Jones Industrial Average (DJIA) is one of the most influential financial indices, and due to its importance, it is adopted as a test bed for this study. The paper explores an alternative strategy to the standard time analysis, by joining the multidimensional scaling (MDS) computational tool and the concepts of distance, entropy, fractal dimension, and fractional calculus. First, several distances are considered to measure the similarities between objects under study and to yield proper input information to the MDS. Then, the MDS constructs a representation based on the similarity of the objects, where time can be viewed as a parametric variable. The resulting plots show a complex structure that is further analyzed with the Shannon entropy and fractal dimension. In a final step, a deeper and more detailed assessment is achieved by associating the concepts of fractional calculus and entropy. Indeed, the fractional-order entropy highlights the results obtained by the other tools, namely that the DJIA fractal nature is visible at different time scales with a fractional order memory that permeates the time seriespt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.3390/e22101138pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.22/18640
dc.language.isoengpt_PT
dc.publisherMDPIpt_PT
dc.relation.publisherversionhttps://www.mdpi.com/1099-4300/22/10/1138pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectMultidimensional scalingpt_PT
dc.subjectFractalspt_PT
dc.subjectFractional calculuspt_PT
dc.subjectFinancial indicespt_PT
dc.subjectEntropypt_PT
dc.subjectDow Jonespt_PT
dc.subjectComplex systemspt_PT
dc.titleFractal and Entropy Analysis of the Dow Jones Index Using Multidimensional Scalingpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue10pt_PT
oaire.citation.startPage1138pt_PT
oaire.citation.titleEntropypt_PT
oaire.citation.volume22pt_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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