Knowledge Graph Infrastructure
Supported by NFDI Section:
Metadata, Terminologies, Provenance
Phase: Integration (01.08.2026 - 31.07.2028)
Service Steward
KGI4NFDI advocates for a central and reusable Knowledge Graph Infrastructure (KGI) to enhance interoperability within the research domain and support the NFDI's objectives. It aims to provide essential components including a Knowledge Graph (KG) registry and a service for accessing KGs across NFDI projects. Additionally, the service intends to empower research communities to create decentralised KG instances using standardised approaches, technologies, and expertise. Through surveys, documentation, consulting services, and ontology harmonisation, the proposal seeks to optimise KG creation and foster standardised ontological practices, contributing to the "One NFDI" vision and promoting FAIR data principles. This initiative will complement international efforts, such as those of the European Open Science Cloud (EOSC), in advancing knowledge graph initiatives.
The working concept for the Knowledge Graph Infrastructure (KGI) service revolves around two primary goals: providing a service hub for accessing and exploring KGs and supporting efficient KG creation and ontology harmonisation across research fields. To achieve these goals, five objectives have been identified, including building a service hub with a KG registry, capacity building for KG concepts and applications, enabling queries across research fields, and facilitating easier interaction with KGs. The initialisation phase will establish the service hub using pilot knowledge graphs from selected NFDI consortia, provide consulting and documentation, facilitate interoperability with existing standards, and strengthen the community by synthesising requirements for future phases.
The integration of KGI4NFDI services with partner consortia will deliver technical, semantic, and organizational interoperability across the NFDI landscape. This approach ensures that KGI4NFDI serves as a unifying infrastructure aiming to: 1) significantly increase adoption of KGs through incubator and deployment projects; 2) integrate new and existing KGs from partner consortia into its central KG Hub; 3) enhance usability and accessibility of the integrated services throughimplementation of LLM-based approaches to user interaction. These measures combined will enable efficient querying and retrieval of metadata across consortia following best practices and interoperability standards.
Initialisation phase: 01.06.2024 - 31.05.2025, cost neutral extension from 01.06.2025 - 31.12.2025
Integration phase: 01.08.2026 - 31.07.2028
