it.uniroma2.sag.kelp.data.dataset

Class LibsvmDatasetReader

java.lang.Object

it.uniroma2.sag.kelp.data.dataset.DatasetReader

it.uniroma2.sag.kelp.data.dataset.LibsvmDatasetReader

public class LibsvmDatasetReader
extends DatasetReader

A utility class to read dataset in the libsvm/liblinear/svmLight format.

Author:

Simone Filice

Field Summary

Fields

Modifier and Type	Field and Description
static String	COMMENT_REPRESENTATION_NAME
static String	COMMENT_SEPARATOR

Fields inherited from class it.uniroma2.sag.kelp.data.dataset.DatasetReader

inputBuffer, nextRow

Constructor Summary

Constructors

Constructor and Description
LibsvmDatasetReader(String filename, String representationName) Constructor for reading dataset in libsvm/liblinear/svmLight format for classification tasks.
LibsvmDatasetReader(String filename, String representationName, StringLabel regressionPropertyName) Constructor for reading dataset in libsvm/liblinear/svmLight format for regression tasks.

Method Summary

Methods

Modifier and Type	Method and Description
Example	readNextExample() Returns the next example

Methods inherited from class it.uniroma2.sag.kelp.data.dataset.DatasetReader

checkRowValidity, close, hasNext, openBufferedReader, restartReading

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

COMMENT_SEPARATOR

public static final String COMMENT_SEPARATOR

See Also:

Constant Field Values

COMMENT_REPRESENTATION_NAME

public static final String COMMENT_REPRESENTATION_NAME

See Also:

Constant Field Values

Constructor Detail

LibsvmDatasetReader

public LibsvmDatasetReader(String filename,
                   String representationName)
                    throws IOException

Constructor for reading dataset in libsvm/liblinear/svmLight format for classification tasks.

Parameters:

filename - the path of the file to be read

representationName - the name of the vector representation each example consists of

Throws:

IOException

LibsvmDatasetReader

public LibsvmDatasetReader(String filename,
                   String representationName,
                   StringLabel regressionPropertyName)
                    throws IOException

Constructor for reading dataset in libsvm/liblinear/svmLight format for regression tasks.

Parameters:

filename - the path of the file to be read

representationName - the name of the vector representation each example consists of

regressionPropertyName - the name of the regression property to be learned

Throws:

IOException

Method Detail

readNextExample

public Example readNextExample()
                        throws IOException,
                               InstantiationException

Description copied from class: DatasetReader

Returns the next example

Overrides:

readNextExample in class DatasetReader

Returns:

the next example

Throws:

IOException

InstantiationException