de.tudarmstadt.ukp.dkpro.core.decompounding.splitter

Class LeftToRightSplitterAlgorithm

java.lang.Object

de.tudarmstadt.ukp.dkpro.core.decompounding.splitter.LeftToRightSplitterAlgorithm

All Implemented Interfaces:

SplitterAlgorithm

public class LeftToRightSplitterAlgorithm
extends Object
implements SplitterAlgorithm

Implements a simple left to right split algorithm. Goes from left to right to the word. If a word is found the right side is evaluation from left to right. At the end we have a right balanced tree. All leaves are the smallest word fractions. The leaves will combined to all possible splits.

Constructor Summary

Constructors

Constructor and Description
LeftToRightSplitterAlgorithm() Empty constructor.
LeftToRightSplitterAlgorithm(Dictionary aDict, LinkingMorphemes aMorphemes) Create a instance of the algorithm

Method Summary

Modifier and Type	Method and Description
Dictionary	getDictionary()
int	getMaxTreeDepth()
int	getMinRestLength()
int	getMinWordLength()
LinkingMorphemes	getMorphemes()
protected void	ltrSplit(ValueNode<DecompoundedWord> aParent, int aDepth) The basic split algorithm.
protected List<DecompoundedWord>	makeSplit(String aWord) Splits a word in two word.
void	setDictionary(Dictionary aDict) Sets the dictionary for the algorithm
void	setLinkingMorphemes(LinkingMorphemes aLinkingMorphemes) Sets the linking morphemes for the algorithm
void	setMaximalTreeDepth(int aDepth) Set the maximal tree depth.
void	setMinRestLength(int aMinRestLength)
void	setMinWordLength(int aMinWordLength)
DecompoundingTree	split(String aWord) Returns all possible splits for a given word.

Methods inherited from class java.lang.Object

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

Constructor Detail

LeftToRightSplitterAlgorithm

public LeftToRightSplitterAlgorithm()

Empty constructor. Before you use this class set the dictionary and the linking morphemes with the setter methods

LeftToRightSplitterAlgorithm

public LeftToRightSplitterAlgorithm(Dictionary aDict,
                                    LinkingMorphemes aMorphemes)

Create a instance of the algorithm

Parameters:

aDict - A dictionary with all words

aMorphemes - A LinkingMorphemes class

Method Detail

split

public DecompoundingTree split(String aWord)

Description copied from interface: SplitterAlgorithm

Returns all possible splits for a given word.

Specified by:

split in interface SplitterAlgorithm

Parameters:

aWord - The word to split

Returns:

the decompouinding tree.

ltrSplit

protected void ltrSplit(ValueNode<DecompoundedWord> aParent,
                        int aDepth)

The basic split algorithm. Moves the word from left to right and checks for valid words.

Parameters:

aParent - The parent node

aDepth - the current depth.

makeSplit

protected List<DecompoundedWord> makeSplit(String aWord)

Splits a word in two word.

Parameters:

aWord - a word.

Returns:

the splits.

setDictionary

public void setDictionary(Dictionary aDict)

Description copied from interface: SplitterAlgorithm

Sets the dictionary for the algorithm

Specified by:

setDictionary in interface SplitterAlgorithm

Parameters:

aDict - The dictionary

getDictionary

public Dictionary getDictionary()

setLinkingMorphemes

public void setLinkingMorphemes(LinkingMorphemes aLinkingMorphemes)

Description copied from interface: SplitterAlgorithm

Sets the linking morphemes for the algorithm

Specified by:

setLinkingMorphemes in interface SplitterAlgorithm

Parameters:

aLinkingMorphemes - the linking morphemes

getMorphemes

public LinkingMorphemes getMorphemes()

setMaximalTreeDepth

public void setMaximalTreeDepth(int aDepth)

Description copied from interface: SplitterAlgorithm

Set the maximal tree depth. Default: Integer.MaxValue

Specified by:

setMaximalTreeDepth in interface SplitterAlgorithm

Parameters:

aDepth - maximal tree depth.

getMaxTreeDepth

public int getMaxTreeDepth()

setMinWordLength

public void setMinWordLength(int aMinWordLength)

getMinWordLength

public int getMinWordLength()

setMinRestLength

public void setMinRestLength(int aMinRestLength)

getMinRestLength

public int getMinRestLength()