it.uniroma2.sag.kelp.data.example

Class ExampleFactory

java.lang.Object

it.uniroma2.sag.kelp.data.example.ExampleFactory

public class ExampleFactory
extends Object

It is a factory that provides methods for instantiating an example described in a textual format The expected inputs for examples with N labels and M representations are String of the form: Label_1 Label_2 ... Label_n |BR_1:I_1| ... |ER_1| |BR_2:I_2| ... |ER_2| ... |BR_m:I_m| ... |ER_m| Where the R_i are identifiers of the representation types (some R_i can be the same) while the I_i are the specific representation identifier (I_i!=I_j for all i,j) for instance R_1=DV (dense vector) I_1=bow

Author:

Simone Filice

Field Summary

Fields

Modifier and Type	Field and Description
static String	BEGIN_PAIR
static String	BEGIN_REPRESENTATION
static String	DELIMITER
static String	END_PAIR
static String	END_REPRESENTATION
static String	LABEL_SEPARATOR
static String	PAIR_SEPARATOR
static String	REPRESENTATION_SEPARATOR
static String	REPRESENTATION_TYPE_NAME_SEPARATOR

Constructor Summary

Constructors

Constructor and Description
ExampleFactory()

Method Summary

Methods

Modifier and Type	Method and Description
static String	getTextualRepresentation(Representation representation)
static String	getTextualRepresentation(Representation representation, String identifier)
static Example	parseExample(String exampleDescription)
static Map.Entry<String,Representation>	parseSingleRepresentation(String textualRepresentation) Parse a single Representation from its string representation

Methods inherited from class java.lang.Object

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

Field Detail

LABEL_SEPARATOR

public static final String LABEL_SEPARATOR

See Also:

Constant Field Values

REPRESENTATION_TYPE_NAME_SEPARATOR

public static final String REPRESENTATION_TYPE_NAME_SEPARATOR

See Also:

Constant Field Values

REPRESENTATION_SEPARATOR

public static final String REPRESENTATION_SEPARATOR

See Also:

Constant Field Values

DELIMITER

public static final String DELIMITER

See Also:

Constant Field Values

BEGIN_REPRESENTATION

public static final String BEGIN_REPRESENTATION

See Also:

Constant Field Values

END_REPRESENTATION

public static final String END_REPRESENTATION

See Also:

Constant Field Values

BEGIN_PAIR

public static final String BEGIN_PAIR

See Also:

Constant Field Values

END_PAIR

public static final String END_PAIR

See Also:

Constant Field Values

PAIR_SEPARATOR

public static final String PAIR_SEPARATOR

See Also:

Constant Field Values

Constructor Detail

ExampleFactory

public ExampleFactory()

Method Detail

parseSingleRepresentation

public static Map.Entry<String,Representation> parseSingleRepresentation(String textualRepresentation)
                                                                  throws InstantiationException,
                                                                         ParsingExampleException

Parse a single Representation from its string representation

Parameters:

textualRepresentation - the string to be parsed

Returns:

Throws:

InstantiationException

ParsingExampleException

getTextualRepresentation

public static String getTextualRepresentation(Representation representation)

getTextualRepresentation

public static String getTextualRepresentation(Representation representation,
                              String identifier)

parseExample

public static Example parseExample(String exampleDescription)
                            throws InstantiationException,
                                   ParsingExampleException

Throws:

InstantiationException

ParsingExampleException