Open datasets · Research & Machine Learning Data
Hugging Face Datasets Hub
Dataset hub for machine learning and AI: NLP, computer vision, audio, tabular, time series, and geospatial data, with a built-in viewer and library integration. Free access. Published by Hugging Face and catalogued under Research & Machine Learning Data, available as parquet, csv, json, arrow, imagefolder, audiofolder, webdataset. Free to access at the source.
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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.