dc.contributor.advisor | Θεοδωρίδης, Ιωάννης | |
dc.contributor.author | Βόντας, Μάριος | |
dc.date.accessioned | 2016-02-15T12:34:20Z | |
dc.date.available | 2016-02-15T12:34:20Z | |
dc.date.issued | 2013-03-29 | |
dc.identifier.uri | https://dione.lib.unipi.gr/xmlui/handle/unipi/8447 | |
dc.format.extent | 69 | el |
dc.language.iso | el | el |
dc.publisher | Πανεπιστήμιο Πειραιώς | el |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Διεθνές | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.title | Building an efficient moving object database engine | el |
dc.type | Master Thesis | el |
dc.contributor.department | Σχολή Τεχνολογιών Πληροφορικής και Επικοινωνιών. Τμήμα Πληροφορικής | el |
dc.description.abstractEN | This thesis describes "Hermes", a MOD developed as an extension of Post-
greSQL. Hermes architecture is presented to show its general context of use
through an SQL interface. The data types that comprise the data model are
presented in three categories spatio-temporal, temporal, and spatial. A spatio-
temporal 3D-Rtree index structure is proposed along with a collection of oper-
ators that get support from it. Also, a showcase on an AIS dataset is presented
to indicate some of the querying capabilities of Hermes. There are two cluster-
ing algorithms implemented on Hermes that provide advanced functionality
to the framework. Finally, the maturity of Hermes is shown by the fact that
it is used in a real-world web application that o ers spatio-temporal querying
functionality to its users. | el |
dc.contributor.master | Πληροφορική | el |
dc.subject.keyword | Post- greSQL | el |
dc.subject.keyword | Spatio-temporal | el |
dc.subject.keyword | Temporal | el |
dc.subject.keyword | Spatial | el |