de.linguatools.disco

Enum Compositionality.VectorCompositionMethod

java.lang.Object

java.lang.Enum<Compositionality.VectorCompositionMethod>

de.linguatools.disco.Compositionality.VectorCompositionMethod

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<Compositionality.VectorCompositionMethod>

Enclosing class:

Compositionality

public static enum Compositionality.VectorCompositionMethod
extends java.lang.Enum<Compositionality.VectorCompositionMethod>

Implemented methods of vector composition.

Enum Constant Summary

Enum Constants

Enum Constant and Description
ADDITION Simple vector addition.
COMBINED Parameterized combination of addition and multiplication, cf.
DILATION Dilate word vector u along the direction of word vector v: v' = u ° v = (lambda-1)(u*v/u*u)*u + v If SimilarityMeasures.COSINE is used, the following formula can be used instead: v' = (u*u)v + (lambda-1)(u*v)u where * is the dot product (Skalarprodukt). Contrary to the other composition methods, this operation is not symmetric. See chapter 4 of J.
EXTREMA Vector extrema combines vectors by choosing for each vector dimension the value that has the highest distance from zero, i.e.
MULTIPLICATION Entry-wise multiplication.
SUBTRACTION Vector subtraction.

Method Summary

Modifier and Type	Method and Description
static Compositionality.VectorCompositionMethod	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static Compositionality.VectorCompositionMethod[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

ADDITION

public static final Compositionality.VectorCompositionMethod ADDITION

Simple vector addition.

SUBTRACTION

public static final Compositionality.VectorCompositionMethod SUBTRACTION

Vector subtraction.

MULTIPLICATION

public static final Compositionality.VectorCompositionMethod MULTIPLICATION

Entry-wise multiplication.

COMBINED

public static final Compositionality.VectorCompositionMethod COMBINED

Parameterized combination of addition and multiplication, cf. equation (11) in J. Mitchell and M. Lapata: Vector-based Models of Semantic Composition. Proceedings of ACL-08: HLT.

DILATION

public static final Compositionality.VectorCompositionMethod DILATION

Dilate word vector u along the direction of word vector v:

v' = u ° v
= (lambda-1)(u*v/u*u)*u + v

If SimilarityMeasures.COSINE is used, the following formula can be used instead:

v' = (u*u)v + (lambda-1)(u*v)u

where * is the dot product (Skalarprodukt).
Contrary to the other composition methods, this operation is not symmetric.
See chapter 4 of J. Mitchell: Composition in Distributional Models of Semantics. PhD, Edinburgh, 2011.

EXTREMA

public static final Compositionality.VectorCompositionMethod EXTREMA

Vector extrema combines vectors by choosing for each vector dimension the value that has the highest distance from zero, i.e. the highest absolute value. See G. Forgues et al. (2014): Bootstrapping Dialog Systems with Word Embeddings. NIPS 2014.

Method Detail

values

public static Compositionality.VectorCompositionMethod[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (Compositionality.VectorCompositionMethod c : Compositionality.VectorCompositionMethod.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static Compositionality.VectorCompositionMethod valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null