Amazon Web Services (AWS) hosts a variety of public data sets which are accesible by anyone free of cost. The data sets can be used to train and test several machine learning models, or to hone your intellectual curiosity quotent by initiating your own data science projects. Click here for the detailed list of data sets.
The data sets are hosted in two formats: Amazon Elastic Block Store (Amazon EBS) snapshots and/or Amazon Simple Storage Service (Amazon S3) buckets. For any questions or to participate into the Public Data Sets community, you may visit AWS’s Public Data Sets forum, Click here for the same.