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<span class="CEURVOLNR">Vol-4108</span> <br>
<span class="CEURURN">urn:nbn:de:0074-4108-x</span>
<p class="unobtrusive copyright" style="text-align: justify">Copyright © 2025 for 
the individual papers by the papers' authors. 
Copyright © <span class="CEURPUBYEAR">2025</span> for the volume
as a collection by its editors.
This volume and its papers are published under the
Creative Commons License Attribution 4.0 International
<a href="https://creativecommons.org/licenses/by/4.0/">(<span class="CEURLIC">CC BY 4.0</span>)</a>.</p>
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<h1><a href="https://wikidataworkshop.github.io/2025/"><span class="CEURVOLACRONYM">Wikidata 2025</span></a><br>
<span class="CEURVOLTITLE">Wikidata Workshop 2025</span></h1>
<br>

<h3>
<span class="CEURFULLTITLE">Proceedings of the 5th Wikidata Workshop (Wikidata 2025)</span><br>
co-located with 24th International Semantic Web Conference (<span class="CEURCOLOCATED">ISWC 2025</span>)<br>
</h3>
<h3><span class="CEURLOCTIME">Nara, Japan, November 2, 2025</span>.</h3> 

<br>
<b> Edited by </b>
<p>

</p><h3>
   <span class="CEURVOLEDITOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0000-0002-5574-1987">Nicolas Ferranti</span> <sup>1</sup><br>
   <span class="CEURVOLEDITOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0000-0002-0894-9750">Marcelo Machado</span> <sup>2,3</sup><br>
   <span class="CEURVOLEDITOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0000-0001-6712-3943">Jorão Gomes Junior</span> <sup>1</sup><br>
   <span class="CEURVOLEDITOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0000-0002-5410-218X">Simon Razniewski</span> <sup>4</sup><br>
   <span class="CEURVOLEDITOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0000-0001-5670-1146">Axel Polleres</span> <sup>1</sup><br>
   <span class="CEURVOLEDITOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0000-0002-9172-2601">Markus Krötzsch</span> <sup>5</sup><br>
</h3>

<sup>1</sup> <a href="https://www.wu.ac.at/">Vienna University of Economics and Business</a>, Austria<br>
<sup>2</sup> <a href="https://www2.ufjf.br/ufjf/">Federal University of Juiz de Fora</a>, Brazil<br>
<sup>3</sup> <a href="https://www.ibm.com/ibm/history/ibm100/us/en/icons/research/">IBM Research</a>, Brazil<br>
<sup>4</sup> <a href="https://tu-dresden.de/">ScaDS.AI & TU Dresden</a>, Germany<br>
<sup>5</sup> <a href="https://tu-dresden.de/">TU Dresden</a>, Germany<br>
<br>

<hr>

<br><br><br>

<div class="CEURTOC">
<h2> Table of Contents </h2>

<ul>
<li id="preface">
Summary: There were <span class="CEURSUBMITTEDPAPERS">13</span> papers submitted for peer-review to this workshop. Out of these, 
<span class="CEURACCEPTEDPAPERS">10</span> papers were accepted for this volume, 
<span class="CEURACCEPTEDREGULARPAPERS">10</span> as regular papers. Each paper was reviewed by at least two reviewers.
</li>
</ul>
<br>


<h3><span class="CEURSESSION">Session 1: Wikidata as a Knowledge Hub</span></h3>

<ul>

<li id="paper9"><a href="paper9.pdf">
<span class="CEURTITLE">DataQuest: Web Augmentation with Wikidata</span></a>
<br>
<span class="CEURAUTHOR">Diego Pizarro</span>,
<span class="CEURAUTHOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0000-0001-9502-2189">Sergio Firmenich</span>,
<span class="CEURAUTHOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0000-0001-9482-1982">Aidan Hogan</span>
</li>

<li id="paper8"><a href="paper8.pdf">
<span class="CEURTITLE">Exploring Wikidata as a Global-Scale Knowledge Graph for Human Resource Management</span></a>
<br>
<span class="CEURAUTHOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0000-0001-6025-609X">Fariz Darari</span>,
<span class="CEURAUTHOR">Jaycent Gunawan Ongris</span>,
<span class="CEURAUTHOR">Berty Chrismartin Lumban Tobing</span>,
<span class="CEURAUTHOR">Douglas Raevan Faisal</span>,
<span class="CEURAUTHOR">On Lee</span>
</li>

</ul>


<h3><span class="CEURSESSION">Session 2: Ontology Integrity & Robustness on Wikidata</span></h3>

<ul>

<li id="paper3"><a href="paper3.pdf">
<span class="CEURTITLE">Benchmarking SPARQL Engines on Wikidata Queries</span></a>
<br>
<span class="CEURAUTHOR">Peter F. Patel-Schneider</span>
</li>

<li id="paper10"><a href="paper10.pdf">
<span class="CEURTITLE">RoboData: Toward Trustable Question Answering over Ontologies through Metacognitive Agentic Epistemology</span></a>
<br>
<span class="CEURAUTHOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0009-0004-2359-5032">Emanuele Musumeci</span>,
<span class="CEURAUTHOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0000-0003-1199-8358">Vincenzo Suriani</span>,
<span class="CEURAUTHOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0000-0001-6606-200X">Daniele Nardi</span>
</li>

<li id="paper2"><a href="paper2.pdf">
<span class="CEURTITLE">LoSA: A Local Structural Approach to Adversarial Attack on the Knowledge Graph-based Question Answering System</span></a>
<br>
<span class="CEURAUTHOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0009-0003-8107-0130">Neha Pokharel</span>,
<span class="CEURAUTHOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0009-0007-8515-5253">Arnab Sharma</span>,
<span class="CEURAUTHOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0000-0002-8368-7658">Adel Memariani</span>,
<span class="CEURAUTHOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0000-0002-8609-8277">Michael Röder</span>,
<span class="CEURAUTHOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0000-0001-7112-3516">Axel-Cyrille Ngonga Ngomo</span>
</li>

</ul>


<h3><span class="CEURSESSION">Session 3: SPARQL, Datasets & Federation</span></h3>

<ul>

<li id="paper4"><a href="paper4.pdf">
<span class="CEURTITLE">Synthetic Dataset Generation and Validation with LLMs for text2sparql in Wikidata Graphs</span></a>
<br>
<span class="CEURAUTHOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0009-0000-5815-0421">Anton Bulle Labate</span>,
<span class="CEURAUTHOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0000-0002-2780-1735">Breno W S R Carvalho</span>,
<span class="CEURAUTHOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0000-0003-1499-3173">Sandro Rama Fiorini</span>,
<span class="CEURAUTHOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0000-0003-4669-7299">Viviane Torres da Silva</span>
</li>

<li id="paper12"><a href="paper12.pdf">
<span class="CEURTITLE">QAWiki: A Knowledge Graph Question Answering & SPARQL Query Generation Dataset for Wikidata</span></a>
<br>
<span class="CEURAUTHOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0000-0002-7003-5087">Alberto Moya Loustaunau</span>,
<span class="CEURAUTHOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0000-0001-9482-1982">Aidan Hogan</span>
</li>

<li id="paper5"><a href="paper5.pdf">
<span class="CEURTITLE">Observations on Automated Client-side Query Federation over Wikidata SPARQL Endpoints</span></a>
<br>
<span class="CEURAUTHOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0009-0004-0721-2169">Jonni Hanski</span>,
<span class="CEURAUTHOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0009-0005-3991-754X">Elias Crum</span>,
<span class="CEURAUTHOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0000-0001-5118-256X">Ruben Taelman</span>
</li>

</ul>


<h3><span class="CEURSESSION">Session 4: LLMs & KGQA: Reliability and Multilinguality</span></h3>

<ul>

<li id="paper1"><a href="paper1.pdf">
<span class="CEURTITLE">Leveraging Knowledge Graphs to Mitigate Counting Hallucinations: A Case Study of Wikidata</span></a>
<br>
<span class="CEURAUTHOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0000-0001-6025-609X">Fariz Darari</span>,
<span class="CEURAUTHOR">Jaycent Gunawan Ongris</span>,
<span class="CEURAUTHOR">Berty Chrismartin Lumban Tobing</span>,
<span class="CEURAUTHOR">Douglas Raevan Faisal</span>,
<span class="CEURAUTHOR">On Lee</span>
</li>

<li id="paper7"><a href="paper7.pdf">
<span class="CEURTITLE">KIF-QA: Using Off-the-shelf LLMs to Answer Simple Questions over Heterogeneous Knowledge Bases</span></a>
<br>
<span class="CEURAUTHOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0000-0002-0894-9750">Marcelo de Oliveira Costa Machado</span>,
<span class="CEURAUTHOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0009-0004-4476-443X">João Pedro Porto Campos</span>,
<span class="CEURAUTHOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0000-0002-7660-9256">Guilherme Lima</span>,
<span class="CEURAUTHOR" itemscope itemtype="https://orcid.org/" itemid="https://orcid.org/0000-0003-4669-7299">Viviane Torres da Silva</span>
</li>


</ul>


</div>


<hr>
<span class="unobtrusive">
2025-11-20: submitted by Nicolas Ferranti,
            metadata incl. bibliographic data published under <a href="https://creativecommons.org/publicdomain/zero/1.0/">Creative Commons CC0</a><br>
<span class="CEURPUBDATE">2025-11-25</span>: published on CEUR Workshop Proceedings (CEUR-WS.org, ISSN 1613-0073)
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