Class | Description |
AttributeDiscretization |
The abstruct class AttributeDiscretization specifies the discretization
values of a particular attribute. |
CategoricalDiscretization |
Associated with an attribute CategoricalDiscretization
allows a user to specify category groups or use automated discretization
(binning) involving the N most frequent items. |
CategoryGroup |
An instance of class CategoryGroup allows grouping of similar categories. |
DiscretizationSpecification |
An instance of DiscretizationSpecification contains discretization details for a single attribute. |
NumericalBin |
An entry of class NumericalBin specifies explicit bin boundaries for a numerical mining attribute. |
NumericalDiscretization |
NumericalDiscretization contains the binning details for a numerical attribute. |
Transformation |
An instance of Transformation is used to prepare input data
for use in data mining operations in ODM. |
This package contains Java supporting of data transformations.
Discretization permits the user
to group related values and significantly
reduce attribute coordinality. This in then reduces complexity and
execution time of mining operations.
Binning has a major impact on model accuracy.
The best binning results when an expert creates the bins manually based on information
about the data being binned and the problem being solved.
Oracle9i Data Mining provides four ways to bin data: