SEMANTiCS-C 2026
Posters, Demos, Blue Sky, and Tutorials at SEMANTiCS 2026

Table of Contents

• Summary: This Companion Volume for the 22nd International Conference on Semantic Systems, SEMANTiCS 2026, presents 23 demos, 43 posters (21 from the Posters and Demos Track, and 22 Fast-Tracked from the Research and Innovation Track), 5 Blue Sky papers and 1 Tutorial paper.

Posters and Demos

• Towards a Semantic Dataspace for Interoperable and Transparent Local Council Decision Data
  Leila Feddoul, Stefanie Kerkhof, Antje Dietrich, Hannes Köninger, Marianne Mauch
• Sampo-UI Meets Ontop: Publishing Relational Digital Humanities Data on the Semantic Web
  Joren Six, Jahid Chetti, Annastiina Ahola, Frederic Lamsens, Heikki Rantala, Eero Hyvönen
• KGWorkbench: From Modular Ontologies to Human-Reviewed Knowledge Graphs - A Human-in-the-Loop Tool for LLM-assisted Knowledge Graph Construction
  Ole Katzenberger, Ferdinand Schreiber, Christos Vagkidis, Alf Köhn-Seemann, Thomas Kopinski
• Demonstration of RDF and SPARQL 1.2 Interoperability through Query Rewriting
  Jitse De Smet, Maxime Jakubowski
• Schema Injection in the Wild for Link Prediction: Lessons Learned from Incomplete Schema Cases
  Nicolas Robert, Pierre Monnin, Catherine Faron
• The Eyeling Playground: N3 rules in your browser
  Patrick Hochstenbach, Jos De Roo, Wout Slabbinck, Beatriz Esteves, Pieter Colpaert
• Scaling Ontology Engineering with LLMs: Semantic Alignment and Coverage Evaluation
  Sebastian Neumaier, Tobias Dam, Fabian Kovac
• ArcUno: A Topology-Sensing Tangible Toolkit for Lean Knowledge Graph Modeling
  Filippos Taprantzis, Victor de Boer
• Montage: LLM-driven Expert-in-loop Schema-Ontology Mapper
  Siddhesh Thombre, Manasi Patwardhan, Sunita Sarawagi
• Towards ATIC: A Specialized Quadstore Tailored for Corporate Memories
  Markus Schröder, Desiree Heim, Christian Jilek, Andreas Dengel
• Efficient RAG for MediaWiki and Wikibase: Hyperparameter Tuning for Semantic Retrieval under Resource Constraints
  Kolja Bailly, Lozana Rossenova, Ina Blümel
• Using ParliamentSampo Linked Open Data Service and Portal for Analyzing Interruptions and Laughter in the Plenary Sessions of the Parliament of Finland
  Eero Hyvönen, Petri Leskinen, Heikki Rantala, Jouni Tuominen, Annastiina Ahola
• Towards Claim-Centered Biomedical Knowledge Representation: A Pilot Annotation Corpus
  Rohitha Ravinder, Leyla Jael Castro, Dietrich Rebholz-Schuhmann
• A Functional and Distributed RML Processor
  Corentin Michaux, Christophe Debruyne
• MCP-over-SPARQL : Giving AI the tools to query knowledge graphs
  Tarek Bouzelat, Thomas Francart, Badisse Dahamna, Flavien Disson, Romain Lelong, Catherine Letord, Stéfan J. Darmoni
• Urban Drone Traffic Safety with Semantic Web Enhanced Stream Reasoning through DatalogMTL𝑅𝐷𝐹
  Volodymyr Kadzhaia, Pieter Bonte
• Assessing the Viability of an OBDA Approach to Integrating Databases into a Virtual Knowledge Graph for Research Management at ITC
  Phearun Ol, Deperias Kerre, Christophe Debruyne, Dona Valy, Sotheany Nou
• Towards Neurosymbolic Learning for the Semantic Web with Kolibrie
  Volodymyr Kadzhaia, Pieter Bonte
• An AI-Assisted Semantic Platform enabling Pesticide Risk Assessment
  Ugo Gentile, Till Goldmann, Francesco Carratta, Julie Moulin
• Integrating Domain Experts and Large Language Models for Competency Question Generation
  Maryam Sefidbari, Leyla Jael Castro
• Streaming Interoperable Construction Data with LDES
  Carlos Ramonell, Mathias Bonduel
• Decompose Before You Match: Mapping Complex Terms to FoodOn by Their Parts
  Tadeusz Price, Jens Ruhof, Ido Toxopeus, Marga Ocké, Anna Fensel
• Towards a Gold Dataset for Cross-Perspective Ontology Alignment in the Food Domain
  Divyasha Sunil Naik, Birgitta König-Ries
• Modeling the Letters of Nobel Laureate Ivo Andrić as a Knowledge Graph
  Marija Đokić Petrović, Mihajlo Stojanović, Branko Tošović
• EthnoBot: A Semantic Platform for Ethnobotanical Data Collection and LLM-Aided Plant Name Resolution
  Theodora Manika, Michail Tsenos, Christian Ebeling, Vijay Ingalalli, Antigoni Cheilari, Evanthia Dina, Avni Hajdari, Andrea Pieroni, Dimitrios Gunopulos, Marc Jacobs, Nektarios Aligiannis
• FnO-Convert: Automatic Semantic Annotation of ML Pipelines Using the Function Ontology
  Pol Nachtergaele, Ben De Meester, Femke Ongenae
• Robot Capability Assessment in Manufacturing Using Semantic XAI and Neuro-Symbolic Reasoning
  Muhammad Raza Naqvi, Arkopaul Sarkar, Linda Elmhadhbi, Antoine Zimmermann, Hedi Karray
• The FAIR Humanitarian Data Space
  Rens Kievit, Joëlle Stocker, Mirjam van Reisen
• Agentic Competency Question Generation for Copolymer Domain Ontologies
  Vishvapalsinhji Parmar, Vamsi Krishna Kommineni, Birgitta König-Ries
• A Semantic Backend Architecture for Digital Twin Spacecraft Lifecycle Integration
  Rojina Shrestha, Björn Beyreuther, Harald Eisenmann, Ken Wenzel, Armin Müller
• Putting the Athlete in Control of their Performance Data through Privacy-Preserving Aggregators across Data Vaults
  Maarten Vandenbrande, Pieter Bonte, Femke Ongenae
• Explore Intra-Belgian book translation flows with a SAMPO-UI
  Sven Lieber, Ann Van Camp, Joren Six, Julie Birkholz
• Nahuatl Dialectal Varieties Classification
  Juan-José Guzmán-Landa, Daniela Juárez-Morales, Juan-Manuel Torres-Moreno, Luis-Gil Moreno-Jiménez, Miguel Figueroa-Saavedra, Rémy Kessler, Graham Ranger, Martha-Lorena Avendaño-Garrido
• Session Graph: A Provenance-Aware Semantic Memory Layer for AI-Assisted Development
  Roberto Shimizu
• OBIS Extractor: Create a Schema for Your Knowledge Graph
  Kārlis Čerāns, Aiga Romāne-Ritmane, Mikus Grasmanis, Lelde Lāce
• AMA-KBQA: An Adaptable Multi-Agent Framework for Generalizable Knowledge Base Question Answering
  Yannic Duan, Maximilian Klattig, Maurice Bardenhagen, Yuyang Li, Tobias Käfer
• Enforcing fine-grained data governance for Wikibase via generic and declarative filter rules
  Sven Lieber
• Investigating Stability and Consensus in LLM Taxonomy Generation
  Alison Yearsley, Anelia Kurteva
• LLM-Leaderboard for Knowledge Graph related Tasks - Finding the Best Language Model with Data from LLM-KG-Bench
  Lars-Peter Meyer, Felix Brei, Johannes Frey, Marvin Hofer
• Agentic exploration of knowledge graph data schemas
  Uldis Bojārs, Lelde Lāce, Mikus Grasmanis, Kārlis Čerāns
• Trust Chains for AI-Assisted Heritage Knowledge: A Wiki-Backed, Tradition-Aware Pipeline
  Vijendra Kushwaha
• Knowledge-Graph Scope Expansion for Text-to-SQL RAG over Czech Public-Health Tables
  Peter Vajdecka
• Using Linked Data for Monitoring Administrative Persecution Targeting LGBTQIA+ Expression
  Andrei Nesterov, Sergey Katsuba
• OWL-SDA: A Multi-Agent System for Generating Synthetic Data to Support Ontology Evaluation
  Maxim Van de Wynckel, Emmelien De Roock
• AIDGO: A FAIR Ontology for Aligning EU AI Act Data Governance Obligations with ISO/IEC Technical Standards
  Kuruvilla George Aiyankovil, David Lewis
• ODDToolkit: An Open-Source Toolkit to Help Bridge the Developer Gap in Ontology Driven Design
  Maxim Van de Wynckel, Geert Van Haute
• Large Language Model-based Textual Graph Retrieval Agent with Minimal Toolset
  Wooyoung Kim, Doyoung Kwon, Haemin Jung, Wooju Kim
• Chemical Identity Lost in Regulation: A Study of Semantic Interoperability in European Chemical Substance Data
  Geert Van Haute, Stijn Goedertier, Pieter Fannes, Maxim Van de Wynckel
• Towards Understanding Causality in Judicial Narratives: A Simple Approach using Event-Centric Knowledge Graphs
  Ngoc-Duy Mai, Ha-Thanh Nguyen, Ken Satoh, Hideaki Takeda
• Semantic MediaWiki as a Governed Architecture for Ontology‑Driven Collaborative Knowledge Engineering
  Rajesh Piryani, Yannick Hersant, Benoit Dalet, Carole Convers, Benoit Baurens, Abdessadeq Zougari Ben Elkhayat
• Cost-Preserving Distributed Approximate Pattern Mining for Scalable RDF Graph Summarization
  Mussab Zneika
• Automated Consent Form Generation: Using Ontologies for Model Configuration
  Maryam Mohammadi, Aliena Strathmann, Katja Politt, Annett Jorschick, Hendrik Buschmeier
• Beyond Similarity: LLM-Based Generation of Typed Semantic Links for Ontology Networks
  Nouha Hayouni, Sheeba Samuel, Alsayed Algergawy
• From Fragmentation to Fidelity: Can Partially Harmonized Knowledge Graphs Support Reliable Clinical Question Answering?
  Astha Anand, Martin Hofmann-Apitius, Maria Vehreschild, Jörg Janne Vehreschild, Marc Jacobs
• SC-RED: A Knowledge-Graph-Grounded Supply Chain Relation Extraction Dataset
  Siva Indraneel Dhulipala, Debayan Banerjee, Ricardo Usbeck
• Bridging Theory and Practice in Semantic Data Science
  Dmitrii Orlov, Lise Stork, Nikolay Yakovets, Daphne Miedema
• The EOBS Knowledge Graph: A Knowledge Graph of European Climate Observations
  Ammar Yousaf, Auriol Degbelo
• From Text to Knowledge Gems: Design Principles and a Hybrid AI Approach for Sustainable Knowledge Curation
  Lucia Cvitanic, Heidelinde Hobel, Verena Parzer, Denis Havlik, Ghazal Etminan
• From Documents to Decisions: Ontology-Driven Knowledge Graph Construction Using Iterative LLM Pipelines
  Felix Neubürger, Ole Katzenberger, Salvador Cantuarias, Thomas Kopinski
• Neurosymbolic Join Resolution for Enterprise Text-to-SQL
  Silvan Wiedmer, Albert Weichselbraun, Adrian M.P. Braşoveanu, Norman Süsstrunk
• Validating SHACL Constraints with Notation3 Rules
  Alexander Posselt, Dörthe Arndt
• LLM-Assisted Ontology Engineering and Construction of a French Legal Knowledge Graph
  Génesis Montenegro, Mokhtar Boumedyen Billami, Catherine Faron, Fabien Gandon, Pierre Monnin
• Tokenizing the Graph: Attentive Byte-pair Encoding for Knowledge Graph Embeddings
  N'Dah Jean Kouagou, Arnab Sharma, Harshit Purohit, Caglar Demir, Axel-Cyrille Ngonga Ngomo
• Parameterized Fuzzy Negation for Complex Query Answering over Knowledge Graphs
  Sourabh Kapoor, Arnab Sharma, Stefan Heindorf, Caglar Demir, Axel-Cyrille Ngonga Ngomo
• Datalens: A Semantic Model and Knowledge Graph for Discovery and Exploration of Machine Learning Resources
  Zachari Arnaud, Aline Menin, Anaïs Ollagnier, Catherine Faron

Blue Sky Ideas Track

• From Server-centric to Client-centric Data Integration over Decentralized Knowledge Graphs with Personal Query Engines
  Ruben Taelman
• PROV-CRED: Rated Provenance for Knowledge Graphs
  Mary Ann Tan, Christian Nennemann, Genet Asefa Gesese, Harald Sack
• Knowledge Tectonics: A Geodynamic Inspired Framework for Modelling Epistemic Changes
  Thomas Van Erven, Stelios Kontogiannis, Efstratios Kontopoulos, Konstantinos Avgerinakis, Andrea Scharnhorst, Sándor Darányi
• Semantics for Science: Toward a Massive Scale Evidence-Centric Scientific Knowledge Graph
  Mayank Kejriwal
• The Semantic Immune System: Adaptive Knowledge Integrity in the Era of Induced Semantics
  Manzoor Ali, Muhammad Saleem, Yasir Mahmood, Axel-Cyrille Ngonga Ngomo

Tutorials

• (En-)Coding The Knowledge Graph Stack: RDF, RDFS, SPARQL, SHACL, (YARR)RML
  Achim Reiz, Gregor Seifer