edu.illinois.cs.cogcomp.lbj.coref.alignment
Class DefaultAligner<T>

java.lang.Object
  edu.illinois.cs.cogcomp.lbj.coref.alignment.Aligner<T>
      edu.illinois.cs.cogcomp.lbj.coref.alignment.DefaultAligner<T>

Type Parameters:

T - The type of object to be aligned.

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

DefaultEMAligner, WordOverlapChunkAligner

public abstract class DefaultAligner<T>
extends Aligner<T>
implements java.io.Serializable

Aligns objects based on maximizing overlap.

See Also:

Serialized Form

Field Summary

private static long

serialVersionUID

Constructor Summary

DefaultAligner()
Default Constructor.

Method Summary

java.util.Map<T,T>	getAlignment(java.util.Collection<T> sources, java.util.Collection<T> targets) Aligns each source element to some target element or to itself if no alignment can be found.
T	getBestMatch(T m, java.util.Set<T> targets) Finds the best match between a mention and a target.
abstract int	getOverlap(T a, T b)

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

Constructor Detail

DefaultAligner

public DefaultAligner()

Default Constructor.

Method Detail

getAlignment

public java.util.Map<T,T> getAlignment(java.util.Collection<T> sources,
                                       java.util.Collection<T> targets)

Aligns each source element to some target element or to itself if no alignment can be found. Alignment is 1-to-1 (each target element is linked to by at most one source element).

Specified by:

getAlignment in class Aligner<T>

Parameters:

sources - A collection of source elements.

targets - A collection of target elements.

Returns:

A map that aligns each source element with either a target element or itself.

getBestMatch

public T getBestMatch(T m,
                      java.util.Set<T> targets)

Finds the best match between a mention and a target. The best match is defined as the target with the greatest overlap.

Parameters:

m - The mention to match.

targets - The possible targets.

Returns:

The best target for m.

getOverlap

public abstract int getOverlap(T a,
                               T b)