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2012 IEEE 24th International Conference on Tools with Artificial Intelligence (1995)
Herndon, Virginia, USA
Nov. 5, 1995 to Nov. 8, 1995
ISSN: 1082-3409
ISBN: 0-8186-7312-5
pp: 388
Rudy Setiono , National University of Singapore
Huan Liu , National University of Singapore
ABSTRACT
Discretization can turn numeric attributes into discrete ones. Feature selection can eliminate some irrelevant attributes. This paper describes Chi2, a simple and general algorithm that uses the chi-square statistic to discretize numeric attributes repeatedly until some inconsistencies are found in the data, and achieves feature selection via discretization. The empirical results demonstrate that Chi2 is effective in feature selection and discretization of numeric and ordinal attributes.
INDEX TERMS
Discretization, Feature Selection, chi-square Statistic
CITATION
Rudy Setiono, Huan Liu, "Chi2: Feature Selection and Discretization of Numeric Attributes", 2012 IEEE 24th International Conference on Tools with Artificial Intelligence, vol. 00, no. , pp. 388, 1995, doi:10.1109/TAI.1995.479783
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