ch.epfl.bbp.uima.filter

Class KeepsCleaner

java.lang.Object

org.apache.uima.analysis_component.AnalysisComponent_ImplBase

org.apache.uima.analysis_component.Annotator_ImplBase

org.apache.uima.analysis_component.JCasAnnotator_ImplBase

org.apache.uima.fit.component.JCasAnnotator_ImplBase

ch.epfl.bbp.uima.filter.KeepsCleaner

All Implemented Interfaces:

org.apache.uima.analysis_component.AnalysisComponent

public class KeepsCleaner
extends org.apache.uima.fit.component.JCasAnnotator_ImplBase

Performs cleaning on Keep.getNormalizedText(). Should be performed at the end of the filtering process. Detailed steps:
Remove Keep if normalizedText length < minLength or does not contain balanced parenthesis (e.g. "(hello") or text starts with 'www.' or text consist only of punctuation and numbers.
Then optionally lowercase and finally removes punctuation if it starts or ends with punctuation.

Author:

renaud.richardet@epfl.ch

Constructor Summary

Constructors

Constructor and Description
KeepsCleaner()

Method Summary

Methods

Modifier and Type	Method and Description
static boolean	isBalanced(String expression)
static boolean	isOnlyPunctAndNumbers(String txt)
void	process(org.apache.uima.jcas.JCas jCas)

Methods inherited from class org.apache.uima.fit.component.JCasAnnotator_ImplBase

getLogger, initialize

Methods inherited from class org.apache.uima.analysis_component.JCasAnnotator_ImplBase

getRequiredCasInterface, process

Methods inherited from class org.apache.uima.analysis_component.Annotator_ImplBase

getCasInstancesRequired, hasNext, next

Methods inherited from class org.apache.uima.analysis_component.AnalysisComponent_ImplBase

batchProcessComplete, collectionProcessComplete, destroy, getContext, getResultSpecification, reconfigure, setResultSpecification

Methods inherited from class java.lang.Object

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

Constructor Detail

KeepsCleaner

public KeepsCleaner()

Method Detail

process

public void process(org.apache.uima.jcas.JCas jCas)
             throws org.apache.uima.analysis_engine.AnalysisEngineProcessException

Specified by:

process in class org.apache.uima.analysis_component.JCasAnnotator_ImplBase

Throws:

org.apache.uima.analysis_engine.AnalysisEngineProcessException

isOnlyPunctAndNumbers

public static boolean isOnlyPunctAndNumbers(String txt)

isBalanced

public static boolean isBalanced(String expression)

Returns:

true if the parentheses in the given expression are balanced. Otherwise the return value is false.
Note that characters other than ( ) { } and [ ] are ignored.