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GraCT: A Grammar Based Compressed Representation of Trajectories

dc.contributor.authorBrisaboa, Nieves R.
dc.contributor.authorGómez-Brandón, Adrián
dc.contributor.authorNavarro, Gonzalo
dc.contributor.authorParamá, José R.
dc.date.accessioned2017-02-23T17:04:56Z
dc.date.available2017-02-23T17:04:56Z
dc.date.issued2016-09-21
dc.identifier.citationBrisaboa N.R., Gómez-Brandón A., Navarro G., Paramá J.R. (2016) GraCT: A Grammar Based Compressed Representation of Trajectories. In: Inenaga S., Sadakane K., Sakai T. (eds) String Processing and Information Retrieval. SPIRE 2016. Lecture Notes in Computer Science, vol 9954. Springer, Chames_ES
dc.identifier.issn0302-9743
dc.identifier.issn1611-3349
dc.identifier.urihttp://hdl.handle.net/2183/18176
dc.descriptionThe final publication is available at Springer via http://dx.doi.org/10.1007/978-3-319-46049-9_21es_ES
dc.description.abstract[Abstract] We present a compressed data structure to store free trajectories of moving objects (ships over the sea, for example) allowing spatio-temporal queries. Our method, GraCT, uses a k2k2 -tree to store the absolute positions of all objects at regular time intervals (snapshots), whereas the positions between snapshots are represented as logs of relative movements compressed with Re-Pair. Our experimental evaluation shows important savings in space and time with respect to a fair baseline.es_ES
dc.description.sponsorshipMinisterio de Economía y Competitividad; TIN2013-46238-C4-3-Res_ES
dc.description.sponsorshipMinisterio de Economía y Competitividad; IDI-20141259es_ES
dc.description.sponsorshipMinisterio de Economía y Competitividad; ITC-20151305es_ES
dc.description.sponsorshipMinisterio de Economía y Competitividad; ITC-20151247es_ES
dc.description.sponsorshipXunta de Galicia; GRC2013/053es_ES
dc.description.sponsorshipChile.Fondo Nacional de Desarrollo Científico y Tecnológico; 1-140796es_ES
dc.language.isoenges_ES
dc.publisherSpringeres_ES
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/ 690941
dc.relation.urihttp://link.springer.com/chapter/10.1007%2F978-3-319-46049-9_21es_ES
dc.subjectTrajectories of moving objectses_ES
dc.subjectGraCTes_ES
dc.subjectRepresentation of trajectorieses_ES
dc.titleGraCT: A Grammar Based Compressed Representation of Trajectorieses_ES
dc.typeinfo:eu-repo/semantics/conferenceObjectes_ES
dc.rights.accessinfo:eu-repo/semantics/openAccesses_ES
UDC.journalTitleLecture Notes in Computer Sciencees_ES
UDC.volume9954es_ES
UDC.startPage218es_ES
UDC.endPage230es_ES
dc.identifier.doi10.1007/978-3-319-46049-9_21
UDC.conferenceTitle23rd International Symposium, SPIRE 2016, Beppu, Japan, October 18-20, 2016es_ES


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