CTU relational datasets (redelex)

Relational databases from the CTU Prague Relational Learning Repository (a.k.a. the CTU relational repository), ported to the RelBench manifest format via redelex. Each dataset lives in its own subdirectory in the self-describing manifest layout (plain parquet + manifest.yaml):

<dataset>/
  manifest.yaml                 # tables, primary keys, foreign-key graph, val/test timestamps
  schema.svg                    # zoomable ER diagram
  db/*.parquet                  # relational tables (plain parquet, reindexed keys)
  tasks/<task>/manifest.yaml    # task spec (kind: external -- labels hosted as-is)
  tasks/<task>/{train,val,test}.parquet

Load with relbench.load_dataset("ctu-<name>") / relbench.load_task("ctu-<name>", "<task>"), or read any subdir's parquet directly with pandas/duckdb.

All tasks are kind: external: their labels are produced by redelex's task definitions and served as-is (not regenerated from a duckdb query). Tasks named *-original use a fixed random 80/10/10 entity split; *-temporal tasks split by time using the entity table's time column.

Datasets (71)

dataset	description
ctu-accidents	Traffic accident database consists of all accidents that happened in Slovenia's capital city Ljubljana between the years 1995 and 2006.
ctu-adventureworks	Adventure Works 2014 (OLTP version) is a sample database for Microsoft SQL Server, which has replaced Northwind and Pub sample databases that were shipped earli
ctu-airline	Airline on-time data are reported each month to the U.S.
ctu-atherosclerosis	The study STULONG is a longitudinal 20 years lasting primary preventive study of middle-aged men.
ctu-basketballmen	CTU relational dataset 'basketballmen' from the CTU Prague Relational Learning Repository (https://relational.fel.cvut.cz/).
ctu-basketballwomen	CTU relational dataset 'basketballwomen' from the CTU Prague Relational Learning Repository (https://relational.fel.cvut.cz/).
ctu-biodegradability	This is an older data set of chemical structures containing 328 compounds labeled by their half-life for aerobic aqueous biodegradation.
ctu-bupa	Evaluation of patients on liver disorder.
ctu-carcinogenesis	For prediction of whether a given molecule is carcinogenic or not.
ctu-cde	A database containing geospatial information, as well as SAT average scores and Free-or-Reduced-Price Meal eligibility data, for California schools.
ctu-chess	CTU relational dataset 'chess' from the CTU Prague Relational Learning Repository (https://relational.fel.cvut.cz/).
ctu-classicmodels	The schema is for Classic Models, a retailer of scale models of classic cars.
ctu-cora	The Cora dataset consists of 2708 scientific publications classified into one of seven classes.
ctu-countries	Data of forest area for 247 countries.
ctu-craftbeer	Craft beers labeled by styles and composition.
ctu-credit	A bit more complex artificial database with loops.
ctu-dallas	Officer-involved shootings as disclosed by the Dallas Police Department.
ctu-dcg	The set of positive examples consists of all sentences of up to seven words that can be generated by the DCG in Bratko's book (565 positive examples).
ctu-diabetes	The Diabetes dataset consists of 19717 scientific publications from PubMed database pertaining to diabetes classified into one of three classes.
ctu-dunur	Dunur is a relatedness of two people due to marriage such that A is dunur of B if a child of A is married to a child of B.
ctu-elti	Elti is a relatedness of two people due to marriage such that A is elti of B if A's husband is a brother of B's husband.
ctu-employee	CTU relational dataset 'employee' from the CTU Prague Relational Learning Repository (https://relational.fel.cvut.cz/).
ctu-ergastf1	Ergast.com is a webservice that provides a database of Formula 1 races, starting from the 1950 season until today.
ctu-expenditures	The Consumer Expenditure Survey (CE) collects data on expenditures, income, and demographics in the United States.
ctu-financial	PKDD'99 Financial dataset contains 606 successful and 76 not successful loans along with their information and transactions.
ctu-fnhk	Anonymised data from a hospital in Hradec Kralove, Czech Republic, about treatment and medication.
ctu-ftp	PAKDD'15 Data Mining Competition: The data were obtained from simulations of product viewing activities of users with known gender.
ctu-geneea	Data on deputies and senators in the Czech Republic.
ctu-genes	KDD Cup 2001 prediction of gene/protein function and localization.
ctu-gosales	GO Sales dataset from IBM contains information about daily sales, methods, retailers, and products of a fictitious outdoor equipment retail chain “Great Outdoor
ctu-grants	This dataset includes funding grants from the National Science Foundation.
ctu-hepatitis	PKDD'02 Hepatitis dataset describes 206 instances of Hepatitis B (contrasting them against 484 cases of Hepatitis C).
ctu-hockey	The Hockey Database, in addition to the NHL, covers the following early and alternative leagues: NHA, PCHA, WCHL and WHA.
ctu-imdb	The IMDb database: moderately large, real database of movies.
ctu-lahman	Lahman's baseball database contains complete batting and pitching statistics from 1871 to 2014, plus fielding statistics, standings, team stats, managerial reco
ctu-legalacts	Bulgarian court decision metadata.
ctu-mesh	This domain is about finite element methods in engineering where the number of elements in the mesh model can vary between 1 and 17.
ctu-mondial	A geography dataset from University of Göttingen describes 114 Christian countries and 71 non-Christian countries.
ctu-mooney	The dataset describes a family composed of 86 people across 5 generations.
ctu-movielens	MovieLens data set from the UC Irvine machine learning repository.
ctu-musklarge	The Musk database describes molecules occurring in different conformations.
ctu-musksmall	The Musk database describes molecules occurring in different conformations.
ctu-mutagenesis	The dataset comprises of 230 molecules trialed for mutagenicity on Salmonella typhimurium.
ctu-ncaa	NCAA Basketball Tournament.
ctu-northwind	The Northwind database contains the sales data for a fictitious company called Northwind Traders, which imports and exports specialty foods from around the worl
ctu-pima	The National Institute of Diabetes and Digestive and Kidney Diseases conducted a study on 768 adult female Pima Indians living near Phoenix.
ctu-premiereleague	A database with information about football matches from the UK Premier League.
ctu-restbase	A database of restaurants in the San Francisco Bay Area.
ctu-sakila	The Sakila sample database is designed to represent a DVD rental store.
ctu-sales	A simple artificial database in star schema.
ctu-samegen	Small database of family relations.
ctu-sap	Syntetic dataset containing information about sales of a Credit++.
ctu-satellite	Communications satellite data.
ctu-seznam	Seznam.cz is a web portal and search engine in the Czech Republic.
ctu-sfscores	The San Francisco Dept.
ctu-shakespeare	The Open Source Shakespeare is a collection of Shakespeare's complete works.
ctu-stats	An anonymized dump of all user-contributed content on the Stats Stack Exchange network.
ctu-studentloan	Student Loan contains data about students enrollment and employment status, and the aim is to find rules that define a students' obligation for paying his/her l
ctu-thrombosis	PKDD'99 Medical dataset describes 41 patients with Thrombosis.
ctu-toxicology	Predictive Toxicology Challenge (2000) consists of more than three hundreds of organic molecules marked according to their carcinogenicity on male and female mi
ctu-tpcc	TPC-C is the benchmark published by the Transaction Processing Performance Council (TPC) for Online Transaction Processing (OLTP).
ctu-tpcd	TPC-D represents a broad range of decision support (DS) applications that require complex, long running queries against large complex data structures.
ctu-tpcds	TPC-DS is the new decision support benchmark that models several generally applicable aspects of a decision support system, including queries and data maintenan
ctu-tpch	TPC-H is the benchmark published by the Transaction Processing Performance Council (TPC) for decision support.
ctu-triazine	A pyrimidine QSAR dataset.
ctu-uwcse	This dataset lists facts about the Department of Computer Science and Engineering at the University of Washington (UW-CSE), such as entities (e.g., Student, Pro
ctu-visualgenome	Visual Genome is a dataset, a knowledge base, an ongoing effort to connect structured image concepts to language.
ctu-voc	VOC database provides a peephole view into the administrative system of an early multi-national company, the Vereenigde geoctrooieerde Oostindische Compagnie (V
ctu-walmart	The sales of 111 potentially weather-sensitive products (like umbrellas, bread, and milk) around the time of major weather events at 45 of their retail location
ctu-webkp	The WebKB dataset consists of 877 scientific publications classified into one of five classes.
ctu-world	A database of 239 states and their cities.

Citation

CTU datasets are accessed via ReDeLEx. If you use them, please cite:

@misc{peleska2025redelex,
  title={REDELEX: A Framework for Relational Deep Learning Exploration},
  author={Jakub Peleška and Gustav Šír},
  year={2025},
  eprint={2506.22199},
  archivePrefix={arXiv},
  primaryClass={cs.LG},
  url={https://arxiv.org/abs/2506.22199},
}