Proceedings of the 1st GOBLIN Workshop on Knowledge Graph TechnologiesLeipzig, Germany — June 12, 2025 The 1st GOBLIN Workshop on Knowledge Graph Technologies was held in Leipzig, Germany, on June 12, 2025, as part of the activities of the GOBLIN COST Action.The workshop brought together researchers, practitioners, and stakeholders to discuss advances in Knowledge Graph technologies, applications, and open challenges. See the full program of the workshop at http://dbpedia.org/events/goblin25-workshop/. This record serves as the official proceedings of the workshop. All accepted papers are published individually in the 1st GOBLIN Workshop community on Zenodo and are listed below with their Digital Object Identifiers (DOIs). Accepted Papers A Multi-Agent System for Semantic Mapping of Relational Data to Knowledge GraphsMilena Trajanoska, Riste Stojanov and Dimitar TrajanovDOI: 10.5281/zenodo.16911414 A Visual Notation for Web-Based Ontology ModelingJulija Ovcinnikova and Karlis CeransDOI: 10.5281/zenodo.16911656 Bridging the Gap Between Natural Language and Semantic Web: A Text-to-SPARQL SystemDimitar Pavlovski and Riste StojanovDOI: 10.5281/zenodo.16912011 An Event-centered Knowledge Graph for BulgariaKiril Simov, Nikolay Paev and Petya OsenovaDOI: 10.5281/zenodo.16912113 AI Agent-Driven Framework for Automated Product Knowledge Graph Construction in E-CommerceDimitar Peshevski, Riste Stojanov and Dimitar TrajanovDOI: 10.5281/zenodo.16912163 Towards Generating Synthetic EHR Knowledge Graphs — a Probabilistic ApproachMilos Jovanovik, Eva Milenkova, Maxime Jakubowski and Katja HoseDOI: 10.5281/zenodo.16912250 Prompting or Fine-tuning? Evaluating Relation Classification in Portuguese for Knowledge Graph ConstructionTomas Pinto, Bruno Ferreira, Catarina Silva and Hugo Goncalo OliveiraDOI: 10.5281/zenodo.16912342 LLM-Powered Knowledge Graphs vs Topic Modelling for Sustainable Development AnalyticsBuket Fildisi, Edlira Vakaj, Amna Dridi and Atif AzadDOI: 10.5281/zenodo.16912396 From LLM Generation to Knowledge Representation: Creating and Structuring the GeminiKnowledge-sr QA Dataset for SerbianRanka Stankovic, Nikola Jankovic, Jovana Radenovic and Milica Ikonic NesicDOI: 10.5281/zenodo.16912469 The CK25 Corporate Knowledge Reference Dataset for Benchmarking Text 2 SPARQL Question Answering ApproachesSebastian Tramp and Rene PietzschDOI: 10.5281/zenodo.16912605 Digitizing and Structuring Early Marine Biodiversity Records: A GraphRAG-Based MethodologyGustavo Nunez, Marcos Zarate, Darıo Ceballos and Pablo FillottraniDOI: 10.5281/zenodo.16912811 Smart Learning Applications with the combination of the Open Research Knowledge Graph and Teaching Knowledge GraphsEleni Ilkou and Soren AuerDOI: 10.5281/zenodo.16912917 Towards personal data store-based retrieval augmented generation in mobile computingZachary Grider and Alexander NelsonDOI: 10.5281/zenodo.16913027 Can Personal KG-based RAG Empower Patients?Mariana Dias and Carla Teixeira LopesDOI: 10.5281/zenodo.16913140