我正在尝试运行此网站上提供的简单程序:https://stanfordnlp.github.io/CoreNLP/api.html
我的程序
我的程序
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import java.util.Properties;
import edu.stanford.nlp.ling.CoreAnnotations.NamedEntityTagAnnotation;
import edu.stanford.nlp.ling.CoreAnnotations.PartOfSpeechAnnotation;
import edu.stanford.nlp.ling.CoreAnnotations.SentencesAnnotation;
import edu.stanford.nlp.ling.CoreAnnotations.TextAnnotation;
import edu.stanford.nlp.ling.CoreAnnotations.TokensAnnotation;
import edu.stanford.nlp.ling.CoreLabel;
import edu.stanford.nlp.pipeline.Annotation;
import edu.stanford.nlp.pipeline.StanfordCoreNLP;
import edu.stanford.nlp.util.CoreMap;
public class StanfordClass {
public static void main(String[] args) throws Exception {
Properties props = new Properties();
props.setProperty("annotators", "tokenize, ssplit, pos, lemma, ner, parse");
StanfordCoreNLP pipeline = new StanfordCoreNLP(props);
String text = "What is the Weather in Mumbai right now?";
Annotation document = new Annotation(text);
pipeline.annotate(document);
List<CoreMap> sentences = document.get(SentencesAnnotation.class);
for(CoreMap sentence: sentences) {
// traversing the words in the current sentence
// a CoreLabel is a CoreMap with additional token-specific methods
for (CoreLabel token: sentence.get(TokensAnnotation.class)) {
// this is the text of the token
String word = token.get(TextAnnotation.class);
// this is the POS tag of the token
String pos = token.get(PartOfSpeechAnnotation.class);
// this is the NER label of the token
String ne = token.get(NamedEntityTagAnnotation.class);
System.out.println(String.format("Print: word: [%s] pos: [%s] ne: [%s]",word, pos, ne));
}
}
}
}
但是,出现了“主线程中的异常 Exception in thread "main" java.lang.OutOfMemoryError: Java heap space ”。
我的尝试
1. 如果我从上面的代码中删除 ner(命名实体识别器)属性,即 props.setProperty("annotators", "tokenize, ssplit, pos, lemma, parse");,那么代码就可以正常运行。
2. 但是我需要 ner(命名实体识别器),因此我在 eclipse.ini 文件中增加堆大小到 1g,并确信这个大小足以支持该程序,也确信堆大小不是问题。我认为还有一些东西缺失,但是没有找到是什么。