NDLI: Representação e análise de encontros espaço-temporais publicados em redes sociais online

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Representação e análise de encontros espaço-temporais publicados em redes sociais online

Content Provider	Semantic Scholar
Author	Moreno, Bruno Neiva
Copyright Year	2016
Abstract	The growing use of online social networks has caused users to share detailed information abouttheplacestheyvisit,resultingonaclearconnectionbetweenthephysicalworld(i.e. the movement of these users on the globe) and the virtual world (which they express about these movementsinthesocialnetwork). Thefunctionalityresponsible forsharinglocationbyusersis named as “check in”. In a social network with this feature, any user can publish their visited places. Thisthesispresentsnewapproachesforonlinesocialnetworksanalysisconsideringthe social,spatialandtemporaldimensionsthatareimplicitinthepublicationofuserscheck-ins. Social, spatial and temporal information is deﬁned from the perspective of “user encounters”, which is the study object of this thesis. Users encounters occur when two people (social dimension)aresomewhere(spatialdimension)inagiventime(temporaldimension)anddecide topublishthismeetingthroughcheck-ins. Inadditiontothealgorithmpresentedforencounters detection,wealsodeﬁnedamodelforrepresentationoftheseencounters. Thismodeliscalled asSiST(SocIal,SpatialandTemporal). The SiSTmodelbasicallyrepresentencounters bya graphstructure. Tovalidatetheproposedapproach,weusedrealdatafromonlinesocialnetworks. Withthese data the users encounters were detected and analyzed from different perspectives aiming at investigatingtheexistenceofanylawgoverningthepublicationofencountersandalsotoidentify patternsrelatedtoitsoccurrence,liketemporalpatterns,forexample. Furthermore,thegraphs builtfromSiSTmodelwerealsoanalyzedintermsofitsstructuralandtopologicalproperties. ThroughtheSiSTnetworkstheusersmovementswerestudiedaswell,likeinsituationsinwhich usersmoveingrouporsituationswhereusersarefollowedbyotherusers.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://repositorio.ufpe.br/bitstream/123456789/18621/1/tese_bnm_OK.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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