📄 balance-scale.arff
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%1. Title: Balance Scale Weight & Distance Database%%2. Source Information: % (a) Source: Generated to model psychological experiments reported% by Siegler, R. S. (1976). Three Aspects of Cognitive% Development. Cognitive Psychology, 8, 481-520.% (b) Donor: Tim Hume (hume@ics.uci.edu)% (c) Date: 22 April 1994%%3. Past Usage: (possibly different formats of this data)% - Publications% 1. Klahr, D., & Siegler, R.S. (1978). The Representation of% Children's Knowledge. In H. W. Reese & L. P. Lipsitt (Eds.),% Advances in Child Development and Behavior, pp. 61-116. New% York: Academic Press % 2. Langley,P. (1987). A General Theory of Discrimination% Learning. In D. Klahr, P. Langley, & R. Neches (Eds.),% Production System Models of Learning and Development, pp.% 99-161. Cambridge, MA: MIT Press% 3. Newell, A. (1990). Unified Theories of Cognition.% Cambridge, MA: Harvard University Press% 4. McClelland, J.L. (1988). Parallel Distibuted Processing:% Implications for Cognition and Development. Technical% Report AIP-47, Department of Psychology, Carnegie-Mellon% University % 5. Shultz, T., Mareschal, D., & Schmidt, W. (1994). Modeling% Cognitive Development on Balance Scale Phenomena. Machine% Learning, Vol. 16, pp. 59-88.%%4. Relevant Information: % This data set was generated to model psychological% experimental results. Each example is classified as having the% balance scale tip to the right, tip to the left, or be% balanced. The attributes are the left weight, the left% distance, the right weight, and the right distance. The% correct way to find the class is the greater of % (left-distance * left-weight) and (right-distance *% right-weight). If they are equal, it is balanced.%%5. Number of Instances: 625 (49 balanced, 288 left, 288 right)%%6. Number of Attributes: 4 (numeric) + class name = 5%%7. Attribute Information:% 1. Class Name: 3 (L, B, R)% 2. Left-Weight: 5 (1, 2, 3, 4, 5)% 3. Left-Distance: 5 (1, 2, 3, 4, 5)% 4. Right-Weight: 5 (1, 2, 3, 4, 5)% 5. Right-Distance: 5 (1, 2, 3, 4, 5)%%8. Missing Attribute Values: % none%%9. Class Distribution: % 1. 46.08 percent are L% 2. 07.84 percent are B% 3. 46.08 percent are R%@relation balance-scale@attribute left-weight real@attribute left-distance real@attribute right-weight real@attribute right-distance real@attribute class { L, B, 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