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