Analytical queries on semantic trajectories using graph databases

Gómez, Leticia Irene; Kuijpers, Bart; Vaisman, Alejandro Ariel

Artículo de Publicación Periódica:
Analytical queries on semantic trajectories using graph databases

dc.contributor.author	Gómez, Leticia Irene
dc.contributor.author	Kuijpers, Bart
dc.contributor.author	Vaisman, Alejandro Ariel
dc.date.accessioned	2020-01-23T14:45:46Z
dc.date.available	2020-01-23T14:45:46Z
dc.date.issued	2019-10
dc.description.abstract	"This article studies the analysis of moving object data collected by location-aware devices, such as GPS, using graph databases. Such raw trajectories can be transformed into so-called semantic trajectories, which are sequences of stops that occur at “places of interest.” Trajectory data analysis can be enriched if spatial and non-spatial contextual data associated with the moving objects are taken into account, and aggregation of trajectory data can reveal hidden patterns within such data. When trajectory data are stored in relational databases, there is an “impedance mismatch” between the representation and storage models. Graphs in which the nodes and edges are annotated with properties are gaining increasing interest to model a variety of networks. Therefore, this article proposes the use of graph databases (Neo4j in this case) to represent and store trajectory data, which can thus be analyzed at different aggregation levels using graph query languages (Cypher, for Neo4j). Through a real-world public data case study, the article shows that trajectory queries are expressed more naturally on the graph-based representation than over the relational alternative, and perform better in many typical cases."	en
dc.identifier.issn	1361-1682
dc.identifier.uri	http://ri.itba.edu.ar/handle/123456789/1870
dc.language.iso	en	en
dc.relation	info:eu-repo/semantics/altIdentifier/doi/10.1111/tgis.12556
dc.subject	BASES DE DATOS ORIENTADAS A GRAFOS	es
dc.subject	GPS	en
dc.subject	GIS	en
dc.subject	ANALISIS DE DATOS	es
dc.subject	LENGUAJES DE CONSULTA	es
dc.title	Analytical queries on semantic trajectories using graph databases	en
dc.type	Artículos de Publicaciones Periódicas	es
dc.type	info:eu-repo/semantics/acceptedVersion
dspace.entity.type	Artículo de Publicación Periódica
itba.description.filiation	Fil: Gómez, Leticia Irene. Instituto Tecnológico de Buenos Aires; Argentina.
itba.description.filiation	Fil: Kuijpers, Bart. Universiteit Hasselt ; Bélgica.
itba.description.filiation	Fil: Kuijpers, Bart. Transnationale Universiteit Limburg; Países Bajos.
itba.description.filiation	Fil: Vaisman, Alejandro Ariel. Instituto Tecnológico de Buenos Aires; Argentina.