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5 Data Sets

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1. Balloons: Data previously used in cognitive psychology experiment; 4 data sets represent different conditions of an experiment

2. Lenses: Database for fitting contact lenses

3. Shuttle Landing Control: Tiny database; all nominal values

4. Soybean (Small): Michalski's famous soybean disease database

5. Trains: 2 data formats (structured, one-instance-per-line)