Open datasets · Research & Machine Learning Data
CESSDA – European Social Science Data
European network of social-science data archives with thousands of datasets from over 20 countries. Free for research and teaching. Published by Consortium of European Social Science Data Archives and catalogued under Research & Machine Learning Data, available as dataset-specific. Free to access at the source.
More in Research & Machine Learning Data
Zenodo
Research repository where researchers and organizations publish datasets, software and supplementary materials with persistent identifiers and record-level licences.
Harvard Dataverse
Research-data repository supporting publication, preservation, citation and download of datasets across disciplines.
UCI Machine Learning Repository
University-maintained collection of datasets for machine learning, data mining, teaching and benchmark experimentation.
OpenML
Open platform for publishing and discovering machine-learning datasets, tasks, experiments and benchmark results.