Class OCIMultiLabelConverter

java.lang.Object

org.tribuo.interop.oci.OCIMultiLabelConverter

All Implemented Interfaces:

com.oracle.labs.mlrg.olcut.config.Configurable, com.oracle.labs.mlrg.olcut.provenance.Provenancable<com.oracle.labs.mlrg.olcut.provenance.ConfiguredObjectProvenance>, Serializable, OCIOutputConverter<MultiLabel>

public final class OCIMultiLabelConverter
extends Object
implements OCIOutputConverter<MultiLabel>

A converter for DenseMatrix and DenseVector into MultiLabel Predictions.

The threshold is user determined, but defaults to 0.5.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final double	DEFAULT_THRESHOLD	The default threshold for conversion into a label.

Constructor Summary

Constructors

Constructor	Description
OCIMultiLabelConverter(double threshold, boolean generatesProbabilities)	Constructs an OCILabelConverter with the specified parameters.

Method Summary

Modifier and Type	Method	Description
List<Prediction<MultiLabel>>	convertOutput(DenseMatrix scores, int[] numValidFeatures, List<Example<MultiLabel>> examples, ImmutableOutputInfo<MultiLabel> outputIDInfo)	Converts a dense matrix into a list of predictions of the appropriate type.
Prediction<MultiLabel>	convertOutput(DenseVector scores, int numValidFeature, Example<MultiLabel> example, ImmutableOutputInfo<MultiLabel> outputIDInfo)	Converts a dense vector into a single prediction of the appropriate type.
boolean	equals(Object o)
boolean	generatesProbabilities()	Does this OCIOutputConverter generate probabilities?
com.oracle.labs.mlrg.olcut.provenance.ConfiguredObjectProvenance	getProvenance()
double	getThreshold()	Returns the threshold this converter uses to emit labels.
int	hashCode()
void	postConfig()	Used by the OLCUT configuration system, and should not be called by external code.
String	toString()

Methods inherited from class java.lang.Object

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

Field Details

DEFAULT_THRESHOLD

public static final double DEFAULT_THRESHOLD

The default threshold for conversion into a label.

See Also:

• Constant Field Values

Constructor Details

OCIMultiLabelConverter

public OCIMultiLabelConverter(double threshold,
 boolean generatesProbabilities)

Constructs an OCILabelConverter with the specified parameters.

Parameters:

threshold - Threshold for emitting a MultiLabel dimension.

generatesProbabilities - Does this converter emit probabilities?

Method Details

postConfig

public void postConfig()

Used by the OLCUT configuration system, and should not be called by external code.

Specified by:

postConfig in interface com.oracle.labs.mlrg.olcut.config.Configurable

convertOutput

public Prediction<MultiLabel> convertOutput(DenseVector scores,
 int numValidFeature,
 Example<MultiLabel> example,
 ImmutableOutputInfo<MultiLabel> outputIDInfo)

Description copied from interface: OCIOutputConverter

Converts a dense vector into a single prediction of the appropriate type.

Specified by:

convertOutput in interface OCIOutputConverter<MultiLabel>

Parameters:

scores - The score vector.

numValidFeature - The number of valid features (stored in the prediction).

example - The example (stored in the prediction).

outputIDInfo - The output information.

Returns:

A prediction representing the value of this score vector.

convertOutput

public List<Prediction<MultiLabel>> convertOutput(DenseMatrix scores,
 int[] numValidFeatures,
 List<Example<MultiLabel>> examples,
 ImmutableOutputInfo<MultiLabel> outputIDInfo)

Description copied from interface: OCIOutputConverter

Converts a dense matrix into a list of predictions of the appropriate type.

Specified by:

convertOutput in interface OCIOutputConverter<MultiLabel>

Parameters:

scores - The score matrix.

numValidFeatures - The number of valid features in each example (stored in the prediction).

examples - The examples (stored in the prediction).

outputIDInfo - The output information.

Returns:

A list of predictions representing the value of this score matrix.

generatesProbabilities

public boolean generatesProbabilities()

Description copied from interface: OCIOutputConverter

Does this OCIOutputConverter generate probabilities?

Specified by:

generatesProbabilities in interface OCIOutputConverter<MultiLabel>

Returns:

True if it produces a probability distribution in the Prediction.

getThreshold

public double getThreshold()

Returns the threshold this converter uses to emit labels.

Returns:

The threshold.

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

getProvenance

public com.oracle.labs.mlrg.olcut.provenance.ConfiguredObjectProvenance getProvenance()

Specified by:

getProvenance in interface com.oracle.labs.mlrg.olcut.provenance.Provenancable<com.oracle.labs.mlrg.olcut.provenance.ConfiguredObjectProvenance>