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https://ceur-ws.org/Vol-2977/xpreface.pdf
Preface for GeoLD 2021: 4th Geospatial Linked
Data Workshop?
Beyza Yaman1 , Mohamed Ahmed Sherif2 Axel-Cyrille Ngonga Ngomo2 , and
Armin Haller3
1
ADAPT Centre, Dublin City University, Ireland
2
University of Paderborn, Germany
3
Australian National University, Australia
beyza.yaman@adaptcentre.ie,{mohamed.sherif,
axel.ngonga}@uni-paderborn.de, armin.haller@anu.edu.au
Abstract. The GeoLD 2021 was a full-day workshop that took place
on June 7th, 2021 which was hosted virtually. It was co-located with
the 18th Extended Semantic Web Conference (ESWC2021). This work-
shop invited papers covering the challenges and solutions for handling
with GLD, especially for building high quality, adaptable, geospatial
infrastructures and next-generation spatial applications. The workshop
demonstrated the latest approaches and implementations and to discuss
the solutions to challenges and issues arising from research and industrial
organizations.
Keywords: Geospatial data · Linked Data · GIS.
1 Introduction
Geospatial data is vital for both traditional applications like navigation, logistics,
and tourism and emerging areas like autonomous vehicles, smart buildings and
GIS on demand. Spatial linked data has recently transitioned from experimental
prototypes to national infrastructure. However the next generation of spatial
knowledge graphs will integrate multiple spatial datasets with the large num-
ber of general datasets that contain some geospatial references (e.g., DBpedia,
Wikidata). This integration, either on the public Web or within organizations
has immense socio-economic as well as academic benefits. The upsurge in Linked
data related presentations in the recent Eurogeographics data quality workshop4
shows the deep interest in Geospatial Linked Data (GLD) in national mapping
agencies. GLD enables a web-based, interoperable geospatial infrastructure. This
is especially relevant for delivering the INSPIRE directive in Europe. Moreover,
geospatial information systems benefit from Linked Data principles in building
the next generation of spatial data applications e.g., federated smart buildings,
self-piloted vehicles, delivery drones or automated local authority services.
?
Copyright © 2021 for this paper by its authors. Use permitted under Creative Com-
mons License Attribution 4.0 International (CC BY 4.0).
4
https://eurogeographics.org/calendar-event/3rd-international-workshop-on-spatial-
data-quality/
2 B. Yaman et al.
2 Geospatial Linked Data Workshop
The GeoLD 2021 was a full-day workshop that took place on June 7th, 2021
which was hosted virtually. It was co-located with the 18th Extended Semantic
Web Conference (ESWC2021).
The workshop started with article presentations and it continued for 3 ses-
sions. The presented articles were as follows:
– Ba-Huy Tran, Catherine Comparot, Cassia Trojahn and Nathalie Aussenac-
Gilles, Semantic Integration of Raster Data for Earth Observation on Terri-
torial Units
– Alexandra Rowland, Jorrit Overeem and Erwin Folmer, Demo: GeoDataWiz-
ard for Linked Spatial Data Creation
– Alexandra Rowland, Erwin Folmer, Wouter Beek and Rob Wenneker, Inter-
operability and Integration: An Updated Approach to Linked Data Publica-
tion at the Dutch Land Registry
– Nicholas John Car and Timo Homburg, GeoSPARQL 1.1: An Almost Decadal
Update to the Most Important Geospatial LOD standard
– Frans Knibbe, Models for space unite! The Need and Opportunities for Do-
main–transcendent Modelling of Spatial Data on the Web.
– Nicholas John Car, L4DR: A 2nd-gen, National GeoLD System
– Alex Randles and Declan O’Sullivan, Assessing Quality of R2RML Mappings
for OSi’s Linked Open Data portal
– Christophe Debruyne and Kris McGlinn, Reusable SHACL Constraint Com-
ponents for Validating Geospatial Linked Data
– Jordane Dorne, Nathalie Aussenac-Gilles, Catherine Comparot, Romain Hugues
and Cassia Trojahn, From EO Change Rasters to Knowledge Graphs: An
approach Based on Regions of Interest
– Jonathan Yu, Simon Cox, Benjamin Leighton, Ashley Sommer, David Lemon,
Shane Seaton and Paul Box, Navigating Spatial Relationships between Datasets
Using Reified Links
– Beyza Yaman, Kevin Thompson and Rob Brennan, A SKOS Taxonomy of
the UN Global Geospatial Information Management Data Themes
– Elio Hbeich, Ana Roxin and Nicolas Bus, Connecting Granular and Topo-
logical Relations through Description Logics
– Gobe Hobona, Rob Atkinson, Greg Buehler, Scott Simmons and Ingo Simo-
nis, Establishing a Linked Data Infrastructure for the OGC Body of Knowl-
edge
– Henrique Santos, James P. McCusker and Deborah L. McGuinness, Geospa-
tial Reasoning with Shapefiles for Supporting Policy Decisions
The workshop followed with the panel session. Rob Brennan moderated the
panel session and Cassia Trojahn, Nicholas Car and Armin Haller were the in-
vited panel mediators. They discussed the need and opportunities for modelling
of spatial data on the web with open challenges for the next generation Geospa-
tial Linked Data infrastructure.
Preface for GeoLD 2021: 4th Geospatial Linked Data Workshop 3
The workshop ended with the keynote talk of Krzysztof Janowicz who is a
(full) professor for Geographic Information Science and Geoinformatics at the
Geography Department of the University of California, Santa Barbara, USA. He
delivered an inspiring talk on “KnowWhereGraph: Thoughts on Designing and
Utilizing a Knowledge Graph at the Human-Environment Interface”. In this
keynote, Krzysztof Janowicz introduced their ongoing work on ’KnowWhere-
Graph’, a large-scale, pre-integrated, cross-domain knowledge graph with data
at the human-environment interface, together with services to access this graph
from within Geographic Information Systems. He discussed key design decisions,
application areas in disaster relief and food supply and point out some of the
key challenges for the next years to come.
Finally the workshop chairs wrapped up the sessions and closed the workshop.
In total, the workshop received fifteen papers, 14 of which were accepted
for presentation (2 long papers, 11 short papers and 1 demo). The workshop
attracted papers both from industry and academia.
Organizing Committee
– Beyza Yaman, ADAPT Centre, Dublin City University, Ireland
– Mohamed Ahmed Sherif, University of Paderborn, Germany
– Axel-Cyrille Ngonga Ngomo, University of Paderborn, Germany
– Armin Haller, Australian National University, Australia
Advisory Board
– Rob Brennan, ADAPT Centre, Dublin City University, Ireland
Program Committee
– Konstantina Bareta, Marine Traffic, Greece
– Manolis Koubarakis, National and Kapodistrian University of Athens, Greece
– Sergio José Rodrı́guez Méndez, Australian National University, Australia
– Milos Jovanovik, Ss. Cyril and Methodius University in Skopje, N. Macedo-
nia
– Adrian Wilke, DICE research group, University of Paderborn, Germany
– Giorgos Giannopoulos, Athena Institute for the Management of Information
Systems, Greece
– Matthias Wauer, AKSW, University of Leipzig, Germany
– Mirko Spasić, OpenLink Software, UK
– Nicholas Car, Surround Australia, Australia
– Marı́a Elena Alvarado, GNOSS, Spain
– Peter Mooney, Maynooth University, Ireland
– Rob Brennan, ADAPT Centre, Dublin City University, Ireland
– Kevin Dreßler, DICE research group, University of Paderborn, Germany
4 B. Yaman et al.
– Erwin Folmer, Kadaster, University of Twente, The Netherlands
– Kris McGlinn, Trinity College Dublin, Ireland
– Anuj Singh, GeoPhy, The Netherlands (confirmed)
– Abdullah Fathi Ahmed, University of Leipzig, Germany Hamada Zahera,
University of Paderborn, Germany
– Malika Bendechache, Dublin City University, Ireland
– Brian Davis, ADAPT Centre, Dublin City University, Ireland
– Pasquale Di Donato, swisstopo/COGIS, Switzerland
– Benedicte Bucher, University Gustave Eiffel, IGN, EuroSDR
– Ricardo Alonso Maturana, GNOSS, Spain
– Johannes Lipp, RWTH Aachen University, Germany
Acknowledgement
We would like to thank all the authors, reviewers, committee members and
the invited speaker for their contributions, support and commitment for the
workshop.
This research received funding from the European Union’s Horizon 2020 re-
search and innovation programme under Marie Sklodowska-Curie grant agree-
ment No. 801522, by Science Foundation Ireland and co-funded by the European
Regional Development Fund through the ADAPT Centre for Digital Content
Technology [grant number 13/RC/2106] and Ordnance Survey Ireland.