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    <journal-meta />
    <article-meta>
      <title-group>
        <article-title>Preface for GeoLD 2021: 4th Geospatial Linked Data Workshop?</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <string-name>Beyza Yaman</string-name>
          <email>beyza.yaman@adaptcentre.ie</email>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Mohamed Ahmed Sherif</string-name>
          <xref ref-type="aff" rid="aff3">3</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Axel-Cyrille Ngonga Ngomo</string-name>
          <email>axel.ngongag@uni-paderborn.de</email>
          <xref ref-type="aff" rid="aff3">3</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Armin Haller</string-name>
          <email>armin.haller@anu.edu.au</email>
          <xref ref-type="aff" rid="aff1">1</xref>
        </contrib>
        <aff id="aff0">
          <label>0</label>
          <institution>ADAPT Centre, Dublin City University</institution>
          ,
          <country country="IE">Ireland</country>
        </aff>
        <aff id="aff1">
          <label>1</label>
          <institution>Australian National University</institution>
          ,
          <country country="AU">Australia</country>
        </aff>
        <aff id="aff2">
          <label>2</label>
          <institution>Kevin Dre ler, DICE research group, University of Paderborn</institution>
          ,
          <country country="DE">Germany</country>
        </aff>
        <aff id="aff3">
          <label>3</label>
          <institution>University of Paderborn</institution>
          ,
          <country country="DE">Germany</country>
        </aff>
      </contrib-group>
      <abstract>
        <p>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 workshop 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.</p>
      </abstract>
      <kwd-group>
        <kwd>Geospatial data</kwd>
        <kwd>Linked Data</kwd>
        <kwd>GIS</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body>
    <sec id="sec-1">
      <title>Introduction</title>
    </sec>
    <sec id="sec-2">
      <title>Geospatial Linked Data Workshop</title>
      <p>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).</p>
      <p>The workshop started with article presentations and it continued for 3
sessions. The presented articles were as follows:</p>
      <p>The workshop followed with the panel session. Rob Brennan moderated the
panel session and Cassia Trojahn, Nicholas Car and Armin Haller were the
invited panel mediators. They discussed the need and opportunities for modelling
of spatial data on the web with open challenges for the next generation
Geospatial Linked Data infrastructure.</p>
      <p>Preface for GeoLD 2021: 4th Geospatial Linked Data Workshop</p>
      <p>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
'KnowWhereGraph', 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.</p>
      <p>Finally the workshop chairs wrapped up the sessions and closed the workshop.</p>
      <p>In total, the workshop received fteen 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.</p>
    </sec>
    <sec id="sec-3">
      <title>Organizing Committee</title>
      <p>{ 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</p>
    </sec>
    <sec id="sec-4">
      <title>Advisory Board</title>
      <p>Program Committee
{ Rob Brennan, ADAPT Centre, Dublin City University, Ireland</p>
    </sec>
    <sec id="sec-5">
      <title>Acknowledgement</title>
      <p>We would like to thank all the authors, reviewers, committee members and
the invited speaker for their contributions, support and commitment for the
workshop.</p>
      <p>This research received funding from the European Union's Horizon 2020
research and innovation programme under Marie Sklodowska-Curie grant
agreement 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.</p>
    </sec>
  </body>
  <back>
    <ref-list>
      <ref id="ref1">
        <mixed-citation>
          <source>{ Nicholas John Car and Timo Homburg, GeoSPARQL 1</source>
          .
          <article-title>1: An Almost Decadal Update to the Most Important Geospatial LOD standard</article-title>
        </mixed-citation>
      </ref>
      <ref id="ref2">
        <mixed-citation>
          <article-title>{ Nicholas John Car, L4DR: A 2nd-gen, National GeoLD System</article-title>
        </mixed-citation>
      </ref>
      <ref id="ref3">
        <mixed-citation>
          <string-name>
            <given-names>{ Alex</given-names>
            <surname>Randles and Declan O'Sullivan</surname>
          </string-name>
          ,
          <article-title>Assessing Quality of R2RML Mappings for OSi's Linked Open Data portal</article-title>
        </mixed-citation>
      </ref>
    </ref-list>
  </back>
</article>