如何通过斯坦福NLP管道处理一批文本文件？

Question

我需要通过Stanford NLP管道处理一批文本文件，并将语义图作为输出。我找到了in this SO question的管道示例。我只是更改了班级名称，推出了＆＃34; dcoref＆＃34;来自.props，并将其填充为Eclipse中Core NLP项目的新类。这是代码：

import java.io.*;
import java.util.*;

import edu.stanford.nlp.io.*;
import edu.stanford.nlp.ling.*;
import edu.stanford.nlp.pipeline.*;
import edu.stanford.nlp.trees.*;
import edu.stanford.nlp.util.*;

  public class testpipeline {

  public static void main(String[] args) throws IOException {
    PrintWriter out;
    if (args.length > 1) {
      out = new PrintWriter(args[1]);
    } else {
      out = new PrintWriter(System.out);
    }
    PrintWriter xmlOut = null;
    if (args.length > 2) {
      xmlOut = new PrintWriter(args[2]);
    }

    StanfordCoreNLP pipeline = new StanfordCoreNLP();
    Annotation annotation;
    if (args.length > 0) {
      annotation = new Annotation(IOUtils.slurpFileNoExceptions(args[0]));
    } else {
      annotation = new Annotation("He didn't get a reply.");
    }

    pipeline.annotate(annotation);
    pipeline.prettyPrint(annotation, out);
    if (xmlOut != null) {
      pipeline.xmlPrint(annotation, xmlOut);
    }
    // An Annotation is a Map ...
    List<CoreMap> sentences = annotation.get(CoreAnnotations.SentencesAnnotation.class);

    if (sentences != null && sentences.size() > 0) {
      CoreMap sentence = sentences.get(0);
      Tree tree = sentence.get(TreeCoreAnnotations.TreeAnnotation.class);
      out.println();
      out.println("The first sentence parsed is:");
      tree.pennPrint(out);
    }
  }

}

但它不起作用。运行完整的管道，我通过控制台收到以下错误：

Reading the model of the lemmatizer
java.io.FileNotFoundException: models\lemmatizer.model (The system cannot      find the path specified)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:146)
at java.io.FileInputStream.<init>(FileInputStream.java:101)
at is2.lemmatizer.Lemmatizer.readModel(Lemmatizer.java:166)
at is2.lemmatizer.Lemmatizer.<init>(Lemmatizer.java:68)
at is2.lemmatizer.Lemmatizer.<init>(Lemmatizer.java:82)
at examples.FullPipeline.main(FullPipeline.java:56)
Applying the lemmatizer
Exception in thread "main" java.lang.NullPointerException
at is2.lemmatizer.Lemmatizer.lemmatize(Lemmatizer.java:447)
at is2.lemmatizer.Lemmatizer.apply(Lemmatizer.java:530)
at examples.FullPipeline.main(FullPipeline.java:59)

有人建议如何纠正这个问题吗？