Pergamos - Library and Information Center of National and Kapodistrian University of Athens

Unit:

Κατεύθυνση / ειδίκευση Διαχείριση Πληροφορίας και Δεδομένων (ΔΕΔ)
Library of the School of Science

Deposit date:

2014-03-28

Year:

2014

Author:

Μπερέτα Κωνσταντίνα

Supervisors info:

Καθηγητής Εμμανουήλ Κουμπαράκης (επιβλέπων)

Original Title:

Representation and Querying of the Valid Time of Triples in Linked Geospatial Data

Languages:

English

Translated title:

Αναπαράσταση και Επερώτηση του Χρόνου Εγκυρότητας των Τριπλετών στα Γεωχωρικά Συνδεδεμένα Δεδομένα

Summary:

In this thesis, I introduce the temporal component of the stRDF data model and
the
stSPARQL query language, which have been recently proposed for the
representation and
querying of linked geospatial data that changes over time. With this temporal
component
in place, stSPARQL becomes a very expressive query language for linked
geospatial data,
going beyond the recent OGC standard GeoSPARQL,which has no support for valid
time
of triples. I also present the implementation of this temporal component in the
system
Strabon, and study its performance experimentally. Strabon is shown to
outperform all
the systems it has been compared with.

Keywords:

Semantic web, Spatiotemporal systems, Linked open data, Valid time, stRDF

Index:

Yes

Number of index pages:

Contains images:

Yes

Number of references:

Number of pages:

File:

File access is restricted.

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