Record Class SVMSMOTE.Options

java.lang.Object

java.lang.Record

smile.classification.resampling.SVMSMOTE.Options

Record Components:

k - the number of nearest minority neighbors used for interpolation (typically 5).

ratio - the over-sampling ratio relative to the minority class size. 1.0 doubles the minority class, 2.0 triples it, etc. Must be positive.

mFactor - margin factor — scales the SVM margin band used to select support vectors. Larger values include more minority samples as seeds. Must be non-negative.

svmC - the soft-margin penalty C for the internal SVM. Smaller values → wider margin → more support vectors selected.

highDimThreshold - the dimensionality threshold above which RandomProjectionForest is used instead of KDTree for k-NN search.

rpfNumTrees - number of trees in the RandomProjectionForest.

rpfLeafSize - maximum leaf size for the RandomProjectionForest.

Enclosing class:

SVMSMOTE

public static record SVMSMOTE.Options(int k, double ratio, double mFactor, double svmC, int highDimThreshold, int rpfNumTrees, int rpfLeafSize)
extends Record

SVM-SMOTE hyperparameters.

Constructor Summary

Constructors

Constructor	Description
Options()	Default constructor: k=5, ratio=1.0, mFactor=10.0, svmC=1.0, highDimThreshold=20, rpfNumTrees=10, rpfLeafSize=30.
Options(int k, double ratio)	Constructor with default SVM and index parameters.
Options(int k, double ratio, double mFactor, double svmC, int highDimThreshold, int rpfNumTrees, int rpfLeafSize)	Compact constructor with validation.

Method Summary

Modifier and Type	Method	Description
final boolean	equals(Object o)	Indicates whether some other object is "equal to" this one.
final int	hashCode()	Returns a hash code value for this object.
int	highDimThreshold()	Returns the value of the highDimThreshold record component.
int	k()	Returns the value of the k record component.
double	mFactor()	Returns the value of the mFactor record component.
static SVMSMOTE.Options	of(Properties props)	Returns the options from properties.
double	ratio()	Returns the value of the ratio record component.
int	rpfLeafSize()	Returns the value of the rpfLeafSize record component.
int	rpfNumTrees()	Returns the value of the rpfNumTrees record component.
double	svmC()	Returns the value of the svmC record component.
Properties	toProperties()	Returns the persistent set of hyperparameters including smile.svmsmote.k smile.svmsmote.ratio smile.svmsmote.m_factor smile.svmsmote.svm_c smile.svmsmote.high_dim_threshold smile.svmsmote.rpf_num_trees smile.svmsmote.rpf_leaf_size
final String	toString()	Returns a string representation of this record class.

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

Options

public Options()

Default constructor: k=5, ratio=1.0, mFactor=10.0, svmC=1.0, highDimThreshold=20, rpfNumTrees=10, rpfLeafSize=30.

Options

public Options(int k,
 double ratio)

Constructor with default SVM and index parameters.

Parameters:

k - number of nearest neighbors.

ratio - over-sampling ratio.

Options

public Options(int k,
 double ratio,
 double mFactor,
 double svmC,
 int highDimThreshold,
 int rpfNumTrees,
 int rpfLeafSize)

Compact constructor with validation.

Method Details

toProperties

public Properties toProperties()

Returns the persistent set of hyperparameters including

• smile.svmsmote.k
• smile.svmsmote.ratio
• smile.svmsmote.m_factor
• smile.svmsmote.svm_c
• smile.svmsmote.high_dim_threshold
• smile.svmsmote.rpf_num_trees
• smile.svmsmote.rpf_leaf_size

Returns:

the persistent set.

of

public static SVMSMOTE.Options of(Properties props)

Returns the options from properties.

Parameters:

props - the hyperparameters.

Returns:

the options.

toString

public final String toString()

Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.

Specified by:

toString in class Record

Returns:

a string representation of this object

hashCode

public final int hashCode()

Returns a hash code value for this object. The value is derived from the hash code of each of the record components.

Specified by:

hashCode in class Record

Returns:

a hash code value for this object

equals

public final boolean equals(Object o)

Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. All components in this record class are compared with the compare method from their corresponding wrapper classes.

Specified by:

equals in class Record

Parameters:

o - the object with which to compare

Returns:

true if this object is the same as the o argument; false otherwise.

k

public int k()

Returns the value of the k record component.

Returns:

the value of the k record component

ratio

public double ratio()

Returns the value of the ratio record component.

Returns:

the value of the ratio record component

mFactor

public double mFactor()

Returns the value of the mFactor record component.

Returns:

the value of the mFactor record component

svmC

public double svmC()

Returns the value of the svmC record component.

Returns:

the value of the svmC record component

highDimThreshold

public int highDimThreshold()

Returns the value of the highDimThreshold record component.

Returns:

the value of the highDimThreshold record component

rpfNumTrees

public int rpfNumTrees()

Returns the value of the rpfNumTrees record component.

Returns:

the value of the rpfNumTrees record component

rpfLeafSize

public int rpfLeafSize()

Returns the value of the rpfLeafSize record component.

Returns:

the value of the rpfLeafSize record component