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UIMA パイプラインで POSTagger(品詞) を作成しようとしています。スタンフォード POSTagger jar をダウンロードしてプロジェクトに添付し、モデルを英語用にコピーしましたが、いくつかの例外がスローされます。

私のコード:

package com.gauge.ie.uimaproject;

import java.io.IOException;

import org.apache.uima.UIMAException;
import org.apache.uima.analysis_component.JCasAnnotator_ImplBase;
import org.apache.uima.analysis_engine.AnalysisEngine;
import org.apache.uima.analysis_engine.AnalysisEngineProcessException;
import org.apache.uima.cas.CASException;
import org.apache.uima.fit.descriptor.ConfigurationParameter;
import org.apache.uima.fit.factory.AnalysisEngineFactory;
import org.apache.uima.fit.factory.JCasFactory;
import org.apache.uima.jcas.JCas;

import edu.stanford.nlp.tagger.maxent.MaxentTagger;

public class POSTagger extends JCasAnnotator_ImplBase
{
    public static String SOFA_NAME="";
    MaxentTagger tagger = new MaxentTagger("tagger/bidirectional-distsim-wsj-0-18.tagger");

    @Override
    public void process(JCas jcas)throws AnalysisEngineProcessException
    {

    try
    {
            String text="";
            JCas newJCas=jcas.createView(SOFA_NAME);

            System.out.println("getting doc text.......");

            String docText = jcas.getDocumentText();
            String tagged=tagger.tagString(docText);
            System.out.println(tagged);
            newJCas.setDocumentText(tagged);
    }
        catch(CASException cae)
        {
            System.out.println(cae);
        }
    }
}

例外：

Reading POS tagger model from tagger/bidirectional-distsim-wsj-0-18.tagger ... org.apache.uima.resource.ResourceInitializationException: Could not instantiate Annotator class "com.gauge.ie.uimaproject.POSTagger". Check that your annotator class is not abstract and has a zero-argument constructor.  (Descriptor: <unknown>)
    at org.apache.uima.analysis_engine.impl.PrimitiveAnalysisEngine_impl.initializeAnalysisComponent(PrimitiveAnalysisEngine_impl.java:250)
    at org.apache.uima.analysis_engine.impl.PrimitiveAnalysisEngine_impl.initialize(PrimitiveAnalysisEngine_impl.java:170)
    at org.apache.uima.impl.AnalysisEngineFactory_impl.produceResource(AnalysisEngineFactory_impl.java:94)
    at org.apache.uima.impl.CompositeResourceFactory_impl.produceResource(CompositeResourceFactory_impl.java:62)
    at org.apache.uima.UIMAFramework.produceResource(UIMAFramework.java:279)
    at org.apache.uima.UIMAFramework.produceAnalysisEngine(UIMAFramework.java:407)
    at org.apache.uima.analysis_engine.asb.impl.ASB_impl.setup(ASB_impl.java:256)
    at org.apache.uima.analysis_engine.impl.AggregateAnalysisEngine_impl.initASB(AggregateAnalysisEngine_impl.java:430)
    at org.apache.uima.analysis_engine.impl.AggregateAnalysisEngine_impl.initializeAggregateAnalysisEngine(AggregateAnalysisEngine_impl.java:374)
    at org.apache.uima.analysis_engine.impl.AggregateAnalysisEngine_impl.initialize(AggregateAnalysisEngine_impl.java:187)
    at org.apache.uima.impl.AnalysisEngineFactory_impl.produceResource(AnalysisEngineFactory_impl.java:94)
    at org.apache.uima.impl.CompositeResourceFactory_impl.produceResource(CompositeResourceFactory_impl.java:62)
    at org.apache.uima.UIMAFramework.produceResource(UIMAFramework.java:279)
    at org.apache.uima.UIMAFramework.produceResource(UIMAFramework.java:331)
    at org.apache.uima.UIMAFramework.produceAnalysisEngine(UIMAFramework.java:448)
    at org.apache.uima.fit.pipeline.SimplePipeline.runPipeline(SimplePipeline.java:140)
    at com.gauge.ie.uimaproject.pipeline.main(pipeline.java:27)
Caused by: edu.stanford.nlp.io.RuntimeIOException: Unrecoverable error while loading a tagger model
    at edu.stanford.nlp.tagger.maxent.MaxentTagger.readModelAndInit(MaxentTagger.java:869)
    at edu.stanford.nlp.tagger.maxent.MaxentTagger.readModelAndInit(MaxentTagger.java:767)
    at edu.stanford.nlp.tagger.maxent.MaxentTagger.<init>(MaxentTagger.java:298)
    at edu.stanford.nlp.tagger.maxent.MaxentTagger.<init>(MaxentTagger.java:263)
    at com.gauge.ie.uimaproject.POSTagger.<init>(POSTagger.java:20)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
    at java.lang.Class.newInstance(Class.java:442)
    at org.apache.uima.analysis_engine.impl.PrimitiveAnalysisEngine_impl.initializeAnalysisComponent(PrimitiveAnalysisEngine_impl.java:240)
    ... 16 more
Caused by: java.io.InvalidClassException: edu.stanford.nlp.tagger.maxent.ExtractorDistsim; local class incompatible: stream classdesc serialVersionUID = 1, local class serialVersionUID = 2
    at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:621)
    at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1623)
    at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1518)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1774)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
    at java.util.HashMap.readObject(HashMap.java:1396)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1896)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
    at edu.stanford.nlp.tagger.maxent.MaxentTagger.readExtractors(MaxentTagger.java:595)
    at edu.stanford.nlp.tagger.maxent.MaxentTagger.readModelAndInit(MaxentTagger.java:820)
    ... 26 more
org.apache.uima.resource.ResourceInitializationException: Could not instantiate Annotator class "com.gauge.ie.uimaproject.POSTagger". Check that your annotator class is not abstract and has a zero-argument constructor.  (Descriptor: <unknown>)
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2 に答える 2

2

独自の統合をコーディングする前に、DKPro とスタンフォード PoS タガーの統合を確認することをお勧めします。これにより、おそらく時間が節約されます。

https://code.google.com/p/dkpro-core-asl/wiki/ComponentList_1_6_2#POS_Tagging

http://dkpro-core-gpl.googlecode.com/svn/de.tudarmstadt.ukp.dkpro.core-gpl/tags/de.tudarmstadt.ukp.dkpro.core-gpl-1.6.2/apidocs/index. html?de/tudarmstadt/ukp/dkpro/core/stanfordnlp/StanfordPosTagger.html

本当に自分でコーディングしたい場合は、ソースを確認できます。

https://github.com/dkpro/dkpro-core/blob/master/de.tudarmstadt.ukp.dkpro.core.stanfordnlp-gpl/src/main/java/de/tudarmstadt/ukp/dkpro/core/stanfordnlp/ StanfordPostTagger.java

私が知る限り、彼らは別のコンストラクターでタガーをインスタンス化します:

String modelFile = aUrl.toString();
            MaxentTagger tagger = new MaxentTagger(modelFile,
                    StringUtils.argsToProperties(new String[] { "-model", modelFile }), false);
于 2015-07-27T09:35:52.220 に答える