| Vol-4108 urn:nbn:de:0074-4108-x Copyright © 2025 for the individual papers by the papers' authors. Copyright © 2025 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 (CC BY 4.0).

# Wikidata 2025
Wikidata Workshop 2025

### Proceedings of the 5th Wikidata Workshop (Wikidata 2025)
co-located with 24th International Semantic Web Conference (ISWC 2025)

### Nara, Japan, November 2, 2025.

Edited by

### Nicolas Ferranti 1
Marcelo Machado 2,3
Jorão Gomes Junior 1
Simon Razniewski 4
Axel Polleres 1
Markus Krötzsch 5

1 Vienna University of Economics and Business, Austria
2 Federal University of Juiz de Fora, Brazil
3 IBM Research, Brazil
4 ScaDS.AI & TU Dresden, Germany
5 TU Dresden, Germany

## Table of Contents

- Summary: There were 13 papers submitted for peer-review to this workshop. Out of these, 10 papers were accepted for this volume, 10 as regular papers. Each paper was reviewed by at least two reviewers.

### Session 1: Wikidata as a Knowledge Hub

- DataQuest: Web Augmentation with Wikidata
  Diego Pizarro, Sergio Firmenich, Aidan Hogan
- Exploring Wikidata as a Global-Scale Knowledge Graph for Human Resource Management
  Fariz Darari, Jaycent Gunawan Ongris, Berty Chrismartin Lumban Tobing, Douglas Raevan Faisal, On Lee

### Session 2: Ontology Integrity & Robustness on Wikidata

- Benchmarking SPARQL Engines on Wikidata Queries
  Peter F. Patel-Schneider
- RoboData: Toward Trustable Question Answering over Ontologies through Metacognitive Agentic Epistemology
  Emanuele Musumeci, Vincenzo Suriani, Daniele Nardi
- LoSA: A Local Structural Approach to Adversarial Attack on the Knowledge Graph-based Question Answering System
  Neha Pokharel, Arnab Sharma, Adel Memariani, Michael Röder, Axel-Cyrille Ngonga Ngomo

### Session 3: SPARQL, Datasets & Federation

- Synthetic Dataset Generation and Validation with LLMs for text2sparql in Wikidata Graphs
  Anton Bulle Labate, Breno W S R Carvalho, Sandro Rama Fiorini, Viviane Torres da Silva
- QAWiki: A Knowledge Graph Question Answering & SPARQL Query Generation Dataset for Wikidata
  Alberto Moya Loustaunau, Aidan Hogan
- Observations on Automated Client-side Query Federation over Wikidata SPARQL Endpoints
  Jonni Hanski, Elias Crum, Ruben Taelman

### Session 4: LLMs & KGQA: Reliability and Multilinguality

- Leveraging Knowledge Graphs to Mitigate Counting Hallucinations: A Case Study of Wikidata
  Fariz Darari, Jaycent Gunawan Ongris, Berty Chrismartin Lumban Tobing, Douglas Raevan Faisal, On Lee
- KIF-QA: Using Off-the-shelf LLMs to Answer Simple Questions over Heterogeneous Knowledge Bases
  Marcelo de Oliveira Costa Machado, João Pedro Porto Campos, Guilherme Lima, Viviane Torres da Silva

2025-11-20: submitted by Nicolas Ferranti, metadata incl. bibliographic data published under Creative Commons CC0
2025-11-25: published on CEUR Workshop Proceedings (CEUR-WS.org, ISSN 1613-0073) |valid HTML5|