Creating a Knowledge Graph for Holocaust archival metadata
The European Holocaust Research Infrastructure (EHRI) aims to enhance access to information about Holocaust-related historical sources and promote transnational scholarship. Through the EHRI Portal it makes available over 370,000 archival descriptions, from 2,000 institutions worldwide.
EHRI-KG is an OSCARS-funded project to develop a comprehensive Linked Open Data (LOD) Knowledge Graph (KG) to complement the EHRI Portal, further advancing data accessibility and aligning with the evolving semantic web and LOD standards.
Learn MoreA short introduction to the EHRI-KG project
EHRI-KG outputs
These are some of the outputs generated by the EHRI-KG project.
Sampo-UI allows users to navigate a Knowledge Graph using a faceted search as well as generating different types of visualisations and graphics. This software has been adapted, configured and customised to work with the EHRI-KG. If you are not an expert on semantic technologies, this is your starting point.
The SPARQL endpoint allows expert users and agents to perform arbitrary queries against the EHRI-KG triple store. It is also the backbone for the rest of the services and tools.
If you do not want to deal with SPARQL and prefer a good-old REST API, you can try our OpenAPI-compliant REST API, built using grlc.
The ontology defines the data model used by the EHRI Knowledge Graph for the representation of the information hosted in the EHRI Portal. It does so by extending RiC-O v1.1 and reusing some of the schema.org concepts.
The EHRI-KG Lodview interface offers an easy-to-use website to navigate over the KG entities. You will also find some example SPARQL queries that will help in answering more complex research questions.
Latest
EHRI-KG aligned with RiC-O 1.1 and more After almost one year since the last update, the EHRI-KG announces the release of the EHRI Ontology 0.2.0 aligned with Records in Contexts 1.1, as well as the update of the whole infrastructure to comply with this new version. In addition, new services have been implemented and launched seeking to cover the usage of the EHRI-KG by different types of users.Read MoreEHRI Ontology 0.1.0 released The EHRI-KG team has released version 0.1.0 of the EHRI Ontology, marking a significant milestone in the ongoing effort to publish the EHRI Portal data as Linked Open Data. This ontology extends Records in Contexts Ontology (RiC-O) 1.0.2, integrating schema.org and EHRI-specific properties to fill semantic gaps.Read More