SemRepo: A Knowledge Graph for Research Software and Its Scholarly Ecosystem

SemRepo is a large-scale RDF knowledge graph of GitHub repositories linked to scientific research. SemRepo captures fine-grained repository-level metadata (e.g.,s contributors, issues, dependencies, programming language) and interlinks this information with external scholarly knowledge graphs: repositories are connected to publications in LPWC, repository authors are linked to their profiles in SemOpenAlex, and research artifacts (e.g., datasets, experiments) are linked via MLSea KG.

SemRepo provides infrastructure for large-scale analysis of research software within the broader scientific ecosystem. This Zenodo release includes:

RDF data dumps (TTL and N-Triples formats)

SemRepo ontology (OWL)

VoID description for dataset statistics, interlinks, and access points

DCAT metadata description for catalog and distribution metadata

SemRepo’s documentation are available at: Github repository🌐 Project website: https://semrepo.orgSemRepo is released under the CC0 license to maximize reuse and interoperability; users are nevertheless encouraged to cite the dataset and associated publication.