de.lmu.ifi.dbs.elki.distance.similarityfunction.kernel
Class ArbitraryKernelFunctionWrapper<O extends RealVector<O,?>>
java.lang.Object
de.lmu.ifi.dbs.elki.logging.AbstractLoggable
de.lmu.ifi.dbs.elki.utilities.optionhandling.AbstractParameterizable
de.lmu.ifi.dbs.elki.distance.AbstractMeasurementFunction<O,D>
de.lmu.ifi.dbs.elki.distance.distancefunction.AbstractDistanceFunction<O,D>
de.lmu.ifi.dbs.elki.distance.similarityfunction.kernel.AbstractKernelFunction<O,DoubleDistance>
de.lmu.ifi.dbs.elki.distance.similarityfunction.kernel.AbstractDoubleKernelFunction<O>
de.lmu.ifi.dbs.elki.distance.similarityfunction.kernel.ArbitraryKernelFunctionWrapper<O>
- Type Parameters:
O
- object type
- All Implemented Interfaces:
- DistanceFunction<O,DoubleDistance>, MeasurementFunction<O,DoubleDistance>, KernelFunction<O,DoubleDistance>, SimilarityFunction<O,DoubleDistance>, Parameterizable
public class ArbitraryKernelFunctionWrapper<O extends RealVector<O,?>>
- extends AbstractDoubleKernelFunction<O>
Provides a wrapper for arbitrary kernel functions whose kernel matrix has been precomputed.
- Author:
- Simon Paradies
Constructor Summary |
ArbitraryKernelFunctionWrapper()
Provides a wrapper for arbitrary kernel functions whose kernel matrix has already been precomputed. |
Methods inherited from class de.lmu.ifi.dbs.elki.utilities.optionhandling.AbstractParameterizable |
addOption, addParameterizable, addParameterizable, checkGlobalParameterConstraints, collectOptions, getAttributeSettings, getParameters, rememberParametersExcept, removeOption, removeParameterizable, setParameters |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
kernelMatrix
private KernelMatrix<O extends RealVector<O,?>> kernelMatrix
- The global kernel Matrix.
ArbitraryKernelFunctionWrapper
public ArbitraryKernelFunctionWrapper()
- Provides a wrapper for arbitrary kernel functions whose kernel matrix has already been precomputed.
similarity
public DoubleDistance similarity(O o1,
O o2)
- Provides a wrapper for arbitrary kernel functions whose kernel matrix has already been precomputed.
Returns the value that is stored in the kernel matrix which itself is stored in the database.
- Parameters:
o1
- first vectoro2
- second vector
- Returns:
- the linear kernel similarity which is stored in the Global Database
distance
public DoubleDistance distance(O o1,
O o2)
- Returns the distance between the two specified objects.
- Specified by:
distance
in interface DistanceFunction<O extends RealVector<O,?>,DoubleDistance>
- Overrides:
distance
in class AbstractDoubleKernelFunction<O extends RealVector<O,?>>
- Parameters:
o1
- first DatabaseObjecto2
- second DatabaseObject
- Returns:
- the distance between the two object specified by their object ids
distance
public DoubleDistance distance(Integer id1,
Integer id2)
- Returns the distance between the two objects specified by their object ids.
- Specified by:
distance
in interface DistanceFunction<O extends RealVector<O,?>,DoubleDistance>
- Overrides:
distance
in class AbstractDistanceFunction<O extends RealVector<O,?>,DoubleDistance>
- Parameters:
id1
- first object idid2
- second object id
- Returns:
- the distance between the two objects specified by their object ids
shortDescription
public String shortDescription()
- Description copied from class:
AbstractMeasurementFunction
- Returns the required input pattern.
- Specified by:
shortDescription
in interface Parameterizable
- Overrides:
shortDescription
in class AbstractMeasurementFunction<O extends RealVector<O,?>,DoubleDistance>
- Returns:
- Description of the class
setDatabase
public void setDatabase(Database<O> database,
boolean verbose,
boolean time)
- Description copied from interface:
MeasurementFunction
- Set the database that holds the associations for the DatabaseObject for
which the measurements should be computed.
- Specified by:
setDatabase
in interface MeasurementFunction<O extends RealVector<O,?>,DoubleDistance>
- Overrides:
setDatabase
in class AbstractMeasurementFunction<O extends RealVector<O,?>,DoubleDistance>
- Parameters:
database
- Databaseverbose
- unusedtime
- unused