de.julielab.jcore.ae.jpos.postagger

Class POSAnnotator

java.lang.Object

org.apache.uima.analysis_component.AnalysisComponent_ImplBase

org.apache.uima.analysis_component.Annotator_ImplBase

org.apache.uima.analysis_component.JCasAnnotator_ImplBase

de.julielab.jcore.ae.jpos.postagger.POSAnnotator

All Implemented Interfaces:

org.apache.uima.analysis_component.AnalysisComponent

public class POSAnnotator
extends org.apache.uima.analysis_component.JCasAnnotator_ImplBase

Constructor Summary

Constructors

Constructor and Description
POSAnnotator()

Method Summary

Modifier and Type	Method and Description
protected Sentence	createUnitSentence(ArrayList<de.julielab.jcore.types.Token> tokenList, org.apache.uima.jcas.JCas JCas) Takes all info about meta data and generates the corresponding unit sequence represented by a Sentence object.
void	initialize(org.apache.uima.UimaContext aContext) Initialisiation of UIMA-JNET.
void	process(org.apache.uima.jcas.JCas aJCas) process current CAS.
void	writeToCAS(Sentence unitSentence, org.apache.uima.jcas.JCas aJCas, ArrayList<de.julielab.jcore.types.Token> tokenList) creates the respective uima annotations from JPOS's predictions.

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

POSAnnotator

public POSAnnotator()

Method Detail

initialize

public void initialize(org.apache.uima.UimaContext aContext)
                throws org.apache.uima.resource.ResourceInitializationException

Initialisiation of UIMA-JNET. Reads in and checks descriptor's parameters.

Specified by:

initialize in interface org.apache.uima.analysis_component.AnalysisComponent

Overrides:

initialize in class org.apache.uima.analysis_component.AnalysisComponent_ImplBase

Throws:

org.apache.uima.resource.ResourceInitializationException

process

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

process current CAS. In case, abbreviation expansion is turned on, the abbreviation is replaced by its full form which is used during prediction. The labels of this full form are then applied to the original, short form.

Specified by:

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

Throws:

org.apache.uima.analysis_engine.AnalysisEngineProcessException

createUnitSentence

protected Sentence createUnitSentence(ArrayList<de.julielab.jcore.types.Token> tokenList,
                                      org.apache.uima.jcas.JCas JCas)

Takes all info about meta data and generates the corresponding unit sequence represented by a Sentence object. Abbreviation is expanded when specified in descriptor. Only abbreviations which span over single tokens can be interpreted here. Other case (which is very rare and thus probably not relevant) is ignored!

Parameters:

tokenList - a list of Token objects of the current sentence

JCas - the CAS we are working on

metaList - a Arraylist of meta-info HashMaps which specify the meta information of the respective token

Returns:

an array of two sequences of units containing all available meta data for the corresponding tokens. In the first sequence, abbreviations are expanded to their fullform. In the second sequence, the tokens are of their original form.

writeToCAS

public void writeToCAS(Sentence unitSentence,
                       org.apache.uima.jcas.JCas aJCas,
                       ArrayList<de.julielab.jcore.types.Token> tokenList)
                throws org.apache.uima.analysis_engine.AnalysisEngineProcessException

creates the respective uima annotations from JPOS's predictions. Therefore, we loop over JPOS's Sentence objects which contain predictions/labels for each Unit (i.e., for each token).

Parameters:

unitSentence - the current Sentence object

aJCas - the cas to write the annotation to

tokenList -

Throws:

org.apache.uima.analysis_engine.AnalysisEngineProcessException