1. Balloons: Data previously used in cognitive psychology experiment; 4 data sets represent different conditions of an experiment
2. Congressional Voting Records: 1984 United Stated Congressional Voting Records; Classify as Republican or Democrat
3. Hayes-Roth: Topic: human subjects study
4. Balance Scale: Balance scale weight & distance database
5. Adult: Predict whether income exceeds $50K/yr based on census data. Also known as "Census Income" dataset.
6. Census Income: Predict whether income exceeds $50K/yr based on census data. Also known as "Adult" dataset.
7. Nursery: Nursery Database was derived from a hierarchical decision model originally developed to rank applications for nursery schools.
8. Census-Income (KDD): This data set contains weighted census data extracted from the 1994 and 1995 current population surveys conducted by the U.S. Census Bureau.
9. Student Performance: Predict student performance in secondary education (high school).