Chi2: feature selection and discretization of numeric attributes
نویسندگان
چکیده
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 2 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 eeective in feature selection and discretization of numeric and ordinal attributes.
منابع مشابه
Feature Selection via Discretization
| Discretization can turn numeric attributes into discrete ones. Feature selection can eliminate some irrelevant and/or redundant attributes. Chi2 is a simple and general algorithm that uses the 2 statistic to discretize numeric attributes repeatedly until some inconsistencies are found in the data. It achieves feature selection via dis-cretization. It can handle mixed attributes, work with mul...
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