weka.core.stopwords

Class MultiStopwords

java.lang.Object

weka.core.stopwords.AbstractStopwords

weka.core.stopwords.MultiStopwords

All Implemented Interfaces:

java.io.Serializable, OptionHandler, StopwordsHandler

public class MultiStopwords
extends AbstractStopwords

Applies the specified stopwords algorithms one after other.
As soon as a word has been identified as stopword, the loop is exited.

Valid options are:

 -D
  If set, stopword scheme is run in debug mode and
  may output additional info to the console

 -stopwords <classname + options>
  The stopwords algorithms to apply sequentially.
  (default: none)

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected StopwordsHandler[]	m_Stopwords the stopwords algorithms to use.

Fields inherited from class weka.core.stopwords.AbstractStopwords

m_Debug, m_Initialized

Constructor Summary

Constructors

Constructor and Description
MultiStopwords()

Method Summary

Modifier and Type	Method and Description
java.lang.String[]	getOptions() Gets the current settings of the Classifier.
StopwordsHandler[]	getStopwords() Returns the stopwords algorithms.
java.lang.String	globalInfo() Returns a string describing the stopwords scheme.
protected boolean	is(java.lang.String word) Returns true if the given string is a stop word.
java.util.Enumeration<Option>	listOptions() Returns an enumeration describing the available options.
void	setOptions(java.lang.String[] options) Parses a given list of options.
void	setStopwords(StopwordsHandler[] value) Sets the stopwords algorithms.
java.lang.String	stopwordsTipText() Returns the tip text for this property.

Methods inherited from class weka.core.stopwords.AbstractStopwords

debug, debugTipText, error, getDebug, initialize, isStopword, reset, setDebug

Methods inherited from class java.lang.Object

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

Field Detail

m_Stopwords

protected StopwordsHandler[] m_Stopwords

the stopwords algorithms to use.

Constructor Detail

MultiStopwords

public MultiStopwords()

Method Detail

globalInfo

public java.lang.String globalInfo()

Description copied from class: AbstractStopwords

Returns a string describing the stopwords scheme.

Specified by:

globalInfo in class AbstractStopwords

Returns:

a description suitable for displaying in the gui

listOptions

public java.util.Enumeration<Option> listOptions()

Returns an enumeration describing the available options.

Specified by:

listOptions in interface OptionHandler

Overrides:

listOptions in class AbstractStopwords

Returns:

an enumeration of all the available options.

setOptions

public void setOptions(java.lang.String[] options)
                throws java.lang.Exception

Parses a given list of options.

Specified by:

setOptions in interface OptionHandler

Overrides:

setOptions in class AbstractStopwords

Parameters:

options - the list of options as an array of strings

Throws:

java.lang.Exception - if an option is not supported

getOptions

public java.lang.String[] getOptions()

Gets the current settings of the Classifier.

Specified by:

getOptions in interface OptionHandler

Overrides:

getOptions in class AbstractStopwords

Returns:

an array of strings suitable for passing to setOptions

setStopwords

public void setStopwords(StopwordsHandler[] value)

Sets the stopwords algorithms.

Parameters:

value - the algorithms

getStopwords

public StopwordsHandler[] getStopwords()

Returns the stopwords algorithms.

Returns:

the algorithms

stopwordsTipText

public java.lang.String stopwordsTipText()

Returns the tip text for this property.

Returns:

tip text for this property suitable for displaying in the explorer/experimenter gui

is

protected boolean is(java.lang.String word)

Returns true if the given string is a stop word.

Specified by:

is in class AbstractStopwords

Parameters:

word - the word to test

Returns:

true if the word is a stopword