The CTU Prague Relational Learning Repository
This provides a resource for researchers working on relational learning, though it is incremental as it adds to existing data repositories.
The authors introduced the CTU Prague Relational Learning Repository, a collection of 148 SQL databases hosted on a public MySQL server, to support machine learning research with multi-relational data.
The aim of the Prague Relational Learning Repository is to support machine learning research with multi-relational data. The repository currently contains 148 SQL databases hosted on a public MySQL server located at https://relational.fel.cvut.cz. The server is provided by the Czech Technical University (CTU). A searchable meta-database provides metadata (e.g., the number of tables in the database, the number of rows and columns in the tables, the number of self-relationships).