1. Breast Cancer Wisconsin (Prognostic): Prognostic Wisconsin Breast Cancer Database 2. Breast Cancer Wisconsin (Diagnostic): Diagnostic Wisconsin Breast Cancer Database 3. Ecoli: This data contains protein localization sites 4. Iris: Famous database; from Fisher, 1936 5. Quadruped Mammals: The file animals.c is a data generator of structured instances representing quadruped animals 6. Yeast: Predicting the Cellular Localization Sites of Proteins 7. Arcene: ARCENE's task is to distinguish cancer versus normal patterns from mass-spectrometric data. This is a two-class classification problem with continuous input variables. This dataset is one of 5 datasets of the NIPS 2003 feature selection challenge. 8. Parkinsons: Oxford Parkinson's Disease Detection Dataset 9. p53 Mutants: The goal is to model mutant p53 transcriptional activity (active vs inactive) based on data extracted from biophysical simulations.
10. Breast Tissue: Dataset with electrical impedance measurements of freshly excised tissue samples from the breast. 11. Cardiotocography: The dataset consists of measurements of fetal heart rate (FHR) and uterine contraction (UC) features on cardiotocograms classified by expert obstetricians. 12. Localization Data for Person Activity: Data contains recordings of five people performing different activities. Each person wore four sensors (tags) while performing the same scenario five times. 13. seeds: Measurements of geometrical properties of kernels belonging to three different varieties of wheat. A soft X-ray technique and GRAINS package were used to construct all seven, real-valued attributes. 14. One-hundred plant species leaves data set: Sixteen samples of leaf each of one-hundred plant species. For each sample, a shape descriptor, fine scale margin and texture histogram are given. 15. Fertility: 100 volunteers provide a semen sample analyzed according to the WHO 2010 criteria. Sperm concentration are related to socio-demographic data, environmental factors, health status, and life habits 16. Daphnet Freezing of Gait: This dataset contains the annotated readings of 3 acceleration sensors at the hip and leg of Parkinson's disease patients that experience freezing of gait (FoG) during walking tasks.
17. Pima Indians Diabetes: From National Institute of Diabetes and Digestive and Kidney Diseases; Includes cost data (donated by Peter Turney) 18. PubChem Bioassay Data: These highly imbalanced bioassay datasets are from the differing types of screening that can be performed using HTS technology. 21 datasets were created from 12 bioassays. 19. KEGG Metabolic Relation Network (Directed): KEGG Metabolic pathways modeled as directed relation network. Variety of graphical features presented. 20. KEGG Metabolic Reaction Network (Undirected): KEGG Metabolic pathways modeled as un-directed reaction network. Variety of graphical features presented. 21. ILPD (Indian Liver Patient Dataset): This data set contains 10 variables that are age, gender, total Bilirubin, direct Bilirubin, total proteins, albumin, A/G ratio, SGPT, SGOT and Alkphos. 22. Breast Cancer Wisconsin (Original): Original Wisconsin Breast Cancer Database 23. Haberman's Survival: Dataset contains cases from study conducted on the survival of patients who had undergone surgery for breast cancer 24. Lung Cancer: Lung cancer data; no attribute definitions 25. SPECTF Heart: Data on cardiac Single Proton Emission Computed Tomography (SPECT) images. Each patient classified into two categories: normal and abnormal. 26. Mammographic Mass: Discrimination of benign and malignant mammographic masses based on BI-RADS attributes and the patient's age. 27. Dorothea: DOROTHEA is a drug discovery dataset. Chemical compounds represented by structural molecular features must be classified as active (binding to thrombin) or inactive. This is one of 5 datasets of the NIPS 2003 feature selection challenge. 28. Demospongiae: Marine sponges of the Demospongiae class classification domain. 29. Thyroid Disease: 10 separate databases from Garavan Institute 30. 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 31. Abalone: Predict the age of abalone from physical measurements 32. Arrhythmia: Distinguish between the presence and absence of cardiac arrhythmia and classify it in one of the 16 groups. 33. Echocardiogram: Data for classifying if patients will survive for at least one year after a heart attack 34. Heart Disease: 4 databases: Cleveland, Hungary, Switzerland, and the VA Long Beach 35. Hepatitis: From G.Gong: CMU; Mostly Boolean or numeric-valued attribute types; Includes cost data (donated by Peter Turney) 36. Horse Colic: Well documented attributes; 368 instances with 28 attributes (continuous, discrete, and nominal); 30% missing values 37. Contraceptive Method Choice: Dataset is a subset of the 1987 National Indonesia Contraceptive Prevalence Survey. 38. Covertype: Forest CoverType dataset 39. Dermatology: Aim for this dataset is to determine the type of Eryhemato-Squamous Disease. 40. Post-Operative Patient: Dataset of patient features 41. Zoo: Artificial, 7 classes of animals 42. Acute Inflammations: The data was created by a medical expert as a data set to test the expert system,
which will perform the presumptive diagnosis of two diseases of the urinary system.
43. Audiology (Original): Nominal audiology dataset from Baylor 44. Audiology (Standardized): Standardized version of the original audiology database 45. Breast Cancer: Breast Cancer Data (Restricted Access) 46. Lymphography: This lymphography domain was obtained from the University Medical Centre, Institute of Oncology, Ljubljana, Yugoslavia. (Restricted access) 47. Molecular Biology (Promoter Gene Sequences): E. Coli promoter gene sequences (DNA) with partial domain theory 48. Molecular Biology (Protein Secondary Structure): From CMU connectionist bench repository; Classifies secondary structure of certain globular proteins 49. Molecular Biology (Splice-junction Gene Sequences): Primate splice-junction gene sequences (DNA) with associated imperfect domain theory 50. Mushroom: From Audobon Society Field Guide; mushrooms described in terms of physical characteristics; classification: poisonous or edible 51. Primary Tumor: From Ljubljana Oncology Institute 52. Soybean (Large): Michalski's famous soybean disease database 53. Soybean (Small): Michalski's famous soybean disease database 54. SPECT Heart: Data on cardiac Single Proton Emission Computed Tomography (SPECT) images. Each patient classified into two categories: normal and abnormal. | 
