1. Audiology (Standardized): Standardized version of the original audiology database 2. Breast Cancer Wisconsin (Diagnostic): Diagnostic Wisconsin Breast Cancer Database 3. Breast Cancer Wisconsin (Original): Original Wisconsin Breast Cancer Database 4. Breast Cancer Wisconsin (Prognostic): Prognostic Wisconsin Breast Cancer Database 5. Breast Tissue: Dataset with electrical impedance measurements of freshly excised tissue samples from the breast. 6. Cardiotocography: The dataset consists of measurements of fetal heart rate (FHR) and uterine contraction (UC) features on cardiotocograms classified by expert obstetricians. 7. Covertype: Forest CoverType dataset 8. Dermatology: Aim for this dataset is to determine the type of Eryhemato-Squamous Disease. 9. Echocardiogram: Data for classifying if patients will survive for at least one year after a heart attack 10. Hepatitis: From G.Gong: CMU; Mostly Boolean or numeric-valued attribute types; Includes cost data (donated by Peter Turney) 11. Horse Colic: Well documented attributes; 368 instances with 28 attributes (continuous, discrete, and nominal); 30% missing values 12. KEGG Metabolic Reaction Network (Undirected): KEGG Metabolic pathways modeled as un-directed reaction network. Variety of graphical features presented. 13. KEGG Metabolic Relation Network (Directed): KEGG Metabolic pathways modeled as directed relation network. Variety of graphical features presented. 14. Lung Cancer: Lung cancer data; no attribute definitions 15. Lymphography: This lymphography domain was obtained from the University Medical Centre, Institute of Oncology, Ljubljana, Yugoslavia. (Restricted access) 16. Mushroom: From Audobon Society Field Guide; mushrooms described in terms of physical characteristics; classification: poisonous or edible 17. Parkinsons: Oxford Parkinson's Disease Detection Dataset 18. Parkinsons Telemonitoring: Oxford Parkinson's Disease Telemonitoring Dataset 19. Plants: Data has been extracted from the USDA plants database. It contains all plants (species and genera) in the database and the states of USA and Canada where they occur. 20. Primary Tumor: From Ljubljana Oncology Institute 21. Soybean (Large): Michalski's famous soybean disease database 22. Soybean (Small): Michalski's famous soybean disease database 23. SPECT Heart: Data on cardiac Single Proton Emission Computed Tomography (SPECT) images. Each patient classified into two categories: normal and abnormal. 24. SPECTF Heart: Data on cardiac Single Proton Emission Computed Tomography (SPECT) images. Each patient classified into two categories: normal and abnormal. 25. Sponge: Data on sponges; Attributes in spanish 26. Statlog (Heart): This dataset is a heart disease database similar to a database already present in the repository (Heart Disease databases) but in a slightly different form 27. Zoo: Artificial, 7 classes of animals | 
