edu.northwestern.at.morphadorner.tools.taggertrainer

Class TagError

java.lang.Object

edu.northwestern.at.morphadorner.tools.taggertrainer.TagError

All Implemented Interfaces:

java.lang.Comparable

public class TagError
extends java.lang.Object
implements java.lang.Comparable

Tag confusion matrix entry.

A TagError entry contains a (correct tag, incorrect tag, error count) tuple. The error count is the number of times a part of speech tagger generated "incorrect tag" instead of "correct tag" in a tagged corpus. A list of TagError entries can be used by a transformation based learning program to generate contextual rules to correct the tag errors.

Field Summary

Fields

Modifier and Type	Field and Description
java.lang.String	correctTag Correct tag.
java.util.List<java.lang.Integer>	errorPositions List of word positions where this error occurs.
protected int	hashCode The hash code.
java.lang.String	incorrectTag Incorrect tag.
int	incorrectTagCount Number of times incorrect tag appears instead of correct tag.

Constructor Summary

Constructors

Constructor and Description
TagError(java.lang.String correctTag, java.lang.String incorrectTag, java.util.List<java.lang.Integer> errorPositions) Create a tag error entry.

Method Summary

Methods

Modifier and Type	Method and Description
int	compareTo(java.lang.Object object) Compare this object with another.
boolean	equals(java.lang.Object object) Check if another object is equal to this one.
int	hashCode() Get the hash code of the keys.
java.lang.String	toString() Return a string representation of this object.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

correctTag

public final java.lang.String correctTag

Correct tag.

incorrectTag

public final java.lang.String incorrectTag

Incorrect tag.

errorPositions

public final java.util.List<java.lang.Integer> errorPositions

List of word positions where this error occurs.

incorrectTagCount

public final int incorrectTagCount

Number of times incorrect tag appears instead of correct tag.

hashCode

protected final int hashCode

The hash code.

Constructor Detail

TagError

public TagError(java.lang.String correctTag,
        java.lang.String incorrectTag,
        java.util.List<java.lang.Integer> errorPositions)

Create a tag error entry.

Parameters:

correctTag - The correct part of speech tag.

incorrectTag - The incorrect part of speech tag.

errorPositions - The list of tag error positions.

Method Detail

equals

public boolean equals(java.lang.Object object)

Check if another object is equal to this one.

Overrides:

equals in class java.lang.Object

Parameters:

object - Other object to test for equality.

Returns:

true if other object is equal to this one.

compareTo

public int compareTo(java.lang.Object object)

Compare this object with another.

Specified by:

compareTo in interface java.lang.Comparable

Parameters:

object - The other object.

Returns:

< 0 if the other object is less than this one, = 0 if the two objects are equal, > 0 if the other object is greater than this one.

We use compareTo on the array entries in the key. This may not give the desired result if the array entries are themselves arrays.

hashCode

public int hashCode()

Get the hash code of the keys.

Overrides:

hashCode in class java.lang.Object

Returns:

The hash code.

toString

public java.lang.String toString()

Return a string representation of this object.

Overrides:

toString in class java.lang.Object

Returns:

A string representation of this object.