Package edu.upenn.seas.mstparser

Class FeatureVector

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractList<E>

java.util.AbstractSequentialList

de.julielab.gnu.trove.TLinkedList

edu.upenn.seas.mstparser.FeatureVector

All Implemented Interfaces:

java.io.Serializable, java.lang.Iterable, java.util.Collection, java.util.List

public final class FeatureVector
extends de.julielab.gnu.trove.TLinkedList

A FeatureVector that can hold up to two FeatureVector instances inside it, which allows for a very quick concatenation operation.

Also, in order to avoid copies, the second of these internal FeatureVector instances can be negated, so that it has the effect of subtracting any values rather than adding them.

Created: Sat Nov 10 15:25:10 2001

Version:

$Id: FeatureVector.java 90 2007-01-17 07:42:20Z jasonbaldridge $

Author:

Jason Baldridge

See Also:

Feature, Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class de.julielab.gnu.trove.TLinkedList

de.julielab.gnu.trove.TLinkedList.IteratorImpl

Field Summary

Fields inherited from class de.julielab.gnu.trove.TLinkedList

_head, _size, _tail

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

Constructors

Constructor	Description
FeatureVector()
FeatureVector(int[] keys)
FeatureVector(FeatureVector fv1)
FeatureVector(FeatureVector fv1, FeatureVector fv2)
FeatureVector(FeatureVector fv1, FeatureVector fv2, boolean negSecond)

Method Summary

Modifier and Type	Method	Description
void	add(int index, double value)
FeatureVector	cat(FeatureVector fl2)
double	dotProduct(FeatureVector fl2)
FeatureVector	getDistVector(FeatureVector fl2)
double	getScore(double[] parameters)
int[]	keys()
java.lang.String	toString()
void	update(double[] parameters, double[] total, double alpha_k, double upd)

Methods inherited from class de.julielab.gnu.trove.TLinkedList

add, add, addBefore, addFirst, addLast, clear, contains, getFirst, getLast, insert, listIterator, remove, removeFirst, removeLast, size, toArray, toUnlinkedArray

Methods inherited from class java.util.AbstractSequentialList

addAll, get, iterator, remove, set

Methods inherited from class java.util.AbstractList

equals, hashCode, indexOf, lastIndexOf, listIterator, removeRange, subList

Methods inherited from class java.util.AbstractCollection

addAll, containsAll, isEmpty, removeAll, retainAll, toArray

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream, toArray

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface java.util.List

addAll, containsAll, isEmpty, removeAll, replaceAll, retainAll, sort, spliterator, toArray

Constructor Detail

FeatureVector

public FeatureVector()

FeatureVector

public FeatureVector(FeatureVector fv1)

FeatureVector

public FeatureVector(FeatureVector fv1,
                     FeatureVector fv2)

FeatureVector

public FeatureVector(FeatureVector fv1,
                     FeatureVector fv2,
                     boolean negSecond)

FeatureVector

public FeatureVector(int[] keys)

Method Detail

add

public void add(int index,
                double value)

keys

public int[] keys()

cat

public final FeatureVector cat(FeatureVector fl2)

getDistVector

public FeatureVector getDistVector(FeatureVector fl2)

getScore

public final double getScore(double[] parameters)

update

public void update(double[] parameters,
                   double[] total,
                   double alpha_k,
                   double upd)

dotProduct

public double dotProduct(FeatureVector fl2)

toString

public final java.lang.String toString()

Overrides:

toString in class java.util.AbstractCollection