1. 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.
2. Annealing: Steel annealing data 3. 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. 4. Arrhythmia: Distinguish between the presence and absence of cardiac arrhythmia and classify it in one of the 16 groups. 5. Audiology (Standardized): Standardized version of the original audiology database 6. Auto MPG: Revised from CMU StatLib library, data concerns city-cycle fuel consumption 7. Automobile: From 1985 Ward's Automotive Yearbook 8. Badges: Badges labeled with a "+" or "-" as a function of a person's name 9. Balance Scale: Balance scale weight & distance database 10. Blood Transfusion Service Center: Data taken from the Blood Transfusion Service Center in Hsin-Chu City in Taiwan -- this is a classification problem. 11. Breast Cancer: Breast Cancer Data (Restricted Access) 12. Breast Cancer Wisconsin (Diagnostic): Diagnostic Wisconsin Breast Cancer Database 13. Breast Cancer Wisconsin (Original): Original Wisconsin Breast Cancer Database 14. Breast Cancer Wisconsin (Prognostic): Prognostic Wisconsin Breast Cancer Database 15. Breast Tissue: Dataset with electrical impedance measurements of freshly excised tissue samples from the breast. 16. Coil 1999 Competition Data: This data set is from the 1999 Computational Intelligence and Learning (COIL) competition. The data contains measurements of river chemical concentrations and algae densities. 17. Computer Hardware: Relative CPU Performance Data, described in terms of its cycle time, memory size, etc. 18. Concrete Slump Test: Concrete is a highly complex material. The slump flow of concrete is not only determined by the water content, but that is also influenced by other concrete ingredients. 19. Congressional Voting Records: 1984 United Stated Congressional Voting Records; Classify as Republican or Democrat 20. Connectionist Bench (Sonar, Mines vs. Rocks): The task is to train a network to discriminate between sonar signals bounced off a metal cylinder and those bounced off a roughly cylindrical rock. 21. Credit Approval: This data concerns credit card applications; good mix of attributes 22. Cylinder Bands: Used in decision tree induction for mitigating process delays known as "cylinder bands" in rotogravure printing 23. 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.
24. Dermatology: Aim for this dataset is to determine the type of Eryhemato-Squamous Disease. 25. Echocardiogram: Data for classifying if patients will survive for at least one year after a heart attack 26. Ecoli: This data contains protein localization sites 27. EEG Database: This data arises from a large study to examine EEG correlates of genetic predisposition to alcoholism. It contains measurements from 64 electrodes placed on the scalp sampled at 256 Hz 28. Energy efficiency: This study looked into assessing the heating load and cooling load requirements of buildings (that is, energy efficiency) as a function of building parameters. 29. Flags: From Collins Gem Guide to Flags, 1986 30. Forest Fires: This is a difficult regression task, where the aim is to predict the burned area of forest fires, in the northeast region of Portugal, by using meteorological and other data (see details at: http://www.dsi.uminho.pt/~pcortez/forestfires). 31. Glass Identification: From USA Forensic Science Service; 6 types of glass; defined in terms of their oxide content (i.e. Na, Fe, K, etc) 32. Haberman's Survival: Dataset contains cases from study conducted on the survival of patients who had undergone surgery for breast cancer 33. Hayes-Roth: Topic: human subjects study 34. Hepatitis: From G.Gong: CMU; Mostly Boolean or numeric-valued attribute types; Includes cost data (donated by Peter Turney) 35. Horse Colic: Well documented attributes; 368 instances with 28 attributes (continuous, discrete, and nominal); 30% missing values 36. Housing: Taken from StatLib library 37. Ionosphere: Classification of radar returns from the ionosphere 38. Iris: Famous database; from Fisher, 1936 39. Japanese Vowels: This dataset records 640 time series of 12 LPC cepstrum coefficients taken from nine male speakers. 40. Libras Movement: The data set contains 15 classes of 24 instances each. Each class references to a hand movement type in LIBRAS (Portuguese
name 'LÍngua BRAsileira de Sinais', oficial brazilian signal language). 41. Liver Disorders: BUPA Medical Research Ltd. database donated by Richard S. Forsyth 42. Lymphography: This lymphography domain was obtained from the University Medical Centre, Institute of Oncology, Ljubljana, Yugoslavia. (Restricted access) 43. Mammographic Mass: Discrimination of benign and malignant mammographic masses based on BI-RADS attributes and the patient's age. 44. Meta-data: Meta-Data was used in order to give advice about which classification method is appropriate for a particular dataset (taken from results of Statlog project). 45. Molecular Biology (Promoter Gene Sequences): E. Coli promoter gene sequences (DNA) with partial domain theory 46. MONK's Problems: A set of three artificial domains over the same attribute space; Used to test a wide range of induction algorithms 47. Musk (Version 1): The goal is to learn to predict whether new molecules will be musks or non-musks 48. Parkinsons: Oxford Parkinson's Disease Detection Dataset 49. PEMS-SF: 15 months worth of daily data (440 daily records) that describes the occupancy rate, between 0 and 1, of different car lanes of the San Francisco bay area freeways across time. 50. Pima Indians Diabetes: From National Institute of Diabetes and Digestive and Kidney Diseases; Includes cost data (donated by Peter Turney) 51. Pittsburgh Bridges: Bridges database that has original and numeric-discretized datasets 52. Planning Relax: The dataset concerns with the classification of two mental stages from recorded EEG signals: Planning (during imagination of motor act) and Relax state. 53. Primary Tumor: From Ljubljana Oncology Institute 54. Restaurant & consumer data: The dataset was obtained from a recommender system prototype. The task was to generate a top-n list of restaurants according to the consumer preferences. 55. 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. 56. Servo: Data was from a simulation of a servo system 57. Soybean (Large): Michalski's famous soybean disease database 58. SPECT Heart: Data on cardiac Single Proton Emission Computed Tomography (SPECT) images. Each patient classified into two categories: normal and abnormal. 59. SPECTF Heart: Data on cardiac Single Proton Emission Computed Tomography (SPECT) images. Each patient classified into two categories: normal and abnormal. 60. Statlog (Australian Credit Approval): This file concerns credit card applications. This database exists elsewhere in the repository (Credit Screening Database) in a slightly different form 61. Statlog (German Credit Data): This dataset classifies people described by a set of attributes as good or bad credit risks. Comes in two formats (one all numeric). Also comes with a cost matrix 62. 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 63. Statlog (Vehicle Silhouettes): 3D objects within a 2D image by application of an ensemble of shape feature extractors to the 2D silhouettes of the objects. 64. Synthetic Control Chart Time Series: This data consists of synthetically generated control charts. 65. Teaching Assistant Evaluation: The data consist of evaluations of teaching performance; scores are "low", "medium", or "high" 66. Tic-Tac-Toe Endgame: Binary classification task on possible configurations of tic-tac-toe game 67. Vertebral Column: Data set containing values for six biomechanical features used to classify orthopaedic patients into 3 classes (normal, disk hernia or spondilolysthesis) or 2 classes (normal or abnormal). 68. Water Treatment Plant: Multiple classes predict plant state 69. Wine: Using chemical analysis determine the origin of wines 70. Yacht Hydrodynamics: Delft data set, used to predict the hydodynamic performance of sailing yachts from dimensions and velocity. 71. Zoo: Artificial, 7 classes of animals | 
