java - core-nlp 共指解析 : remaping co-references

Question

我一直在尝试使用 core-nlp 共同引用解析系统。该系统的工作原理如教程中所述。下面是相同的代码:

public static void main(String[] args) throws Exception {
    Annotation document = new Annotation("Barack Obama was born in Hawaii.  He is the president. Obama was elected in 2008.");
    Properties props = new Properties();
    props.setProperty("annotators", "tokenize,ssplit,pos,lemma,ner,parse,mention,coref");
    StanfordCoreNLP pipeline = new StanfordCoreNLP(props);
    pipeline.annotate(document);
    System.out.println("---");
    System.out.println("coref chains");
    for (CorefChain cc : document.get(CorefCoreAnnotations.CorefChainAnnotation.class).values()) {
      System.out.println("\t" + cc);
    }

输出:

CHAIN3-["Barack Obama" in sentence 1, "He" in sentence 1]

我想要得到的是一张显示的 map

Key | Value
He : Barack Obama
Obama: Barack Obama

是否有内置方法可以实现此目的，或者我是否必须对此进行后处理(不仅仅是 map )？

Answer 1

目前还没有真正的代码。下面是一个片段，它将打印出提及注释、位置信息和规范提及:

for (CorefChain cc : document.get(CorefCoreAnnotations.CorefChainAnnotation.class).values()) {
    CorefChain.CorefMention representativeMention = cc.getRepresentativeMention();
    for (CorefChain.CorefMention cm : cc.getMentionsInTextualOrder()) {
      String position = "sentence num: "+cm.sentNum+" position: "+cm.startIndex;
      System.out.println(cm.mentionSpan + "\t" + position + "\t" + representativeMention.mentionSpan);
}

}