it.uniroma2.sag.kelp.data.representation.structure.similarity.compositional.product

Class CompositionalNodeSimilarityProduct

java.lang.Object

it.uniroma2.sag.kelp.data.representation.structure.similarity.VectorBasedStructureElementSimilarity

it.uniroma2.sag.kelp.data.representation.structure.similarity.LexicalStructureElementSimilarity

it.uniroma2.sag.kelp.data.representation.structure.similarity.compositional.CompositionalNodeSimilarity

it.uniroma2.sag.kelp.data.representation.structure.similarity.compositional.product.CompositionalNodeSimilarityProduct

All Implemented Interfaces:

Manipulator, StructureElementSimilarityI

public class CompositionalNodeSimilarityProduct
extends CompositionalNodeSimilarity
implements Manipulator

This class implements a specific node similarity that computes the similarity between compositional nodes, by applying the "prod" operator, i.e. the pointwise product operator.

For more details:
[Annesi et al(2014)] Paolo Annesi, Danilo Croce, Roberto Basili (2014) Semantic Compositionality in Tree Kernels. In: Proceedings of the 23rd ACM International Conference on Conference on Information and Knowledge Management

Author:

Giuseppe Castellucci

Field Summary

Fields inherited from class it.uniroma2.sag.kelp.data.representation.structure.similarity.compositional.CompositionalNodeSimilarity

enrichmentName

Fields inherited from class it.uniroma2.sag.kelp.data.representation.structure.similarity.VectorBasedStructureElementSimilarity

VECTOR_NAME

Constructor Summary

Constructors

Constructor and Description
CompositionalNodeSimilarityProduct() Default constructor, used only for JSON serialization/deserialization purposes.
CompositionalNodeSimilarityProduct(WordspaceI wordspace) Constructor that enable to specify the wordspace path.
CompositionalNodeSimilarityProduct(WordspaceI wordspace, boolean posRestriction, boolean syntacticRestriction) Constructor that enable to specify the wordspace path.

Method Summary

Methods

Modifier and Type	Method and Description
Vector	getCompositionalInformationFor(LexicalStructureElement head, LexicalStructureElement modifier) This method takes in input two LexicalStructureElement representing a head and a modifier.
String	getRepresentationToBeEnriched()
protected float	getScore(CompositionalStructureElement csx, CompositionalStructureElement csz)
void	manipulate(Example example)
void	setRepresentationToBeEnriched(String representationToBeEnriched)

Methods inherited from class it.uniroma2.sag.kelp.data.representation.structure.similarity.compositional.CompositionalNodeSimilarity

getEnrichmentName, isPosRestriction, isSyntacticRestriction, setEnrichmentName, setPosRestriction, setSyntacticRestriction, sim

Methods inherited from class it.uniroma2.sag.kelp.data.representation.structure.similarity.LexicalStructureElementSimilarity

getAllowDifferentPOS, getIgnorePosInLemmaMatches, setAllowDifferentPOS, setIgnorePosInLemmaMatches

Methods inherited from class it.uniroma2.sag.kelp.data.representation.structure.similarity.VectorBasedStructureElementSimilarity

getCorrespondingVector, getKernel, getSimilarity, getWordspace, setKernel, setWordspace

Methods inherited from class java.lang.Object

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

Constructor Detail

CompositionalNodeSimilarityProduct

public CompositionalNodeSimilarityProduct()

Default constructor, used only for JSON serialization/deserialization purposes.

CompositionalNodeSimilarityProduct

public CompositionalNodeSimilarityProduct(WordspaceI wordspace)
                                   throws NumberFormatException,
                                          IOException

Constructor that enable to specify the wordspace path. The kernel applied to compute the inner product is the one obtained through the getDefaultKernel method. posRestriction parameter is set to true. syntacticRestriction parameter is set to false.

Parameters:

matrixPath - The path of the Word Space to be loaded

Throws:

NumberFormatException

IOException

CompositionalNodeSimilarityProduct

public CompositionalNodeSimilarityProduct(WordspaceI wordspace,
                                  boolean posRestriction,
                                  boolean syntacticRestriction)
                                   throws NumberFormatException,
                                          IOException

Constructor that enable to specify the wordspace path. The kernel applied to compute the inner product is the one obtained through the getDefaultKernel method.

Parameters:

matrixPath - The path of the Word Space to be loaded.

posRestriction - if true, two nodes will be compared only if heads and modifiers of these nodes will match.

syntacticRestriction - if true, two nodes will be compared only if the dependency relation of these will match.

Throws:

FileNotFoundException

IOException

NumberFormatException

Method Detail

getRepresentationToBeEnriched

public String getRepresentationToBeEnriched()

Returns:

the representationToBeEnriched

setRepresentationToBeEnriched

public void setRepresentationToBeEnriched(String representationToBeEnriched)

Parameters:

representationToBeEnriched - the representationToBeEnriched to set

getScore

protected float getScore(CompositionalStructureElement csx,
             CompositionalStructureElement csz)

Specified by:

getScore in class CompositionalNodeSimilarity

getCompositionalInformationFor

public Vector getCompositionalInformationFor(LexicalStructureElement head,
                                    LexicalStructureElement modifier)

This method takes in input two LexicalStructureElement representing a head and a modifier. It returns an Example that contains a representation, whose name is VECTOR_NAME, containing the pointwise product of the two Vector representations of the head and modifier. In case of missing head, the resulting composition is obtained by copying the modifier in the head. In case of missing modifier, the resulting composition is obtained by copying the head in the modifier. In case of missing head and modifier, the method returns null.

Specified by:

getCompositionalInformationFor in class CompositionalNodeSimilarity

Parameters:

head -

modifier -

ws - the StructureElementSimilarityWordSpace used to retrieve the Vector representations of head and modifiers.

Returns:

the compositional Example

manipulate

public void manipulate(Example example)

Specified by:

manipulate in interface Manipulator