Question

我想将实际使用Stanford Parser 2.0.4的Java代码更新到更新的版本（3.6）

问题是函数“EnglishGrammaticalRelations.SUBJECT.isAncestor”在3.6中不起作用，我需要检查关系是否等于另一个关系的祖先。我使用Stanford 2.0.4的代码如下：

String sentence = "The company is a subsidiary of International Data Group";

    Tree depTree;
    SemanticGraph semanticGraph;
    LexicalizedParser lp;
    TokenizerFactory<CoreLabel> tokenizerFactory;
    LexicalizedParserQuery lpq;
    lp = LexicalizedParser
            .loadModel("edu/stanford/nlp/models/lexparser/englishPCFG.ser.gz");
    tokenizerFactory = PTBTokenizer.factory(new CoreLabelTokenFactory(), "");

    lpq = lp.parserQuery();

    List<CoreLabel> tokenizedSentence = tokenizerFactory.getTokenizer(
            new StringReader(sentence)).tokenize();
    lpq.parse(tokenizedSentence);
    depTree = lpq.getBestParse();//getBestPCFGParse();
    // use uncollapsed dependencies to facilitate tree creation

    semanticGraph = SemanticGraphFactory.makeFromTree(depTree, false);

    System.out.println("compact graph" + semanticGraph.toCompactString());

    for (SemanticGraphEdge e : semanticGraph.edgeIterable()) {
        if (EnglishGrammaticalRelations.SUBJECT.isAncestor(e.getRelation())) {
            System.out.println("This is any subject");
        }

    }

使用Stanford 3.6需要进行一些修改：

String sentence = "The company is a subsidiary of International Data Group";

    Tree depTree;
    SemanticGraph semanticGraph;
    LexicalizedParser lp;
    TokenizerFactory<CoreLabel> tokenizerFactory;
    LexicalizedParserQuery lpq;
    lp = LexicalizedParser
            .loadModel("edu/stanford/nlp/models/lexparser/englishPCFG.ser.gz");
    tokenizerFactory = PTBTokenizer.factory(new CoreLabelTokenFactory(), "");

    lpq = lp.lexicalizedParserQuery();

    List<CoreLabel> tokenizedSentence = tokenizerFactory.getTokenizer(
            new StringReader(sentence)).tokenize();
    lpq.parse(tokenizedSentence);
    depTree = lpq.getBestPCFGParse();//getBestParse();
    // use uncollapsed dependencies to facilitate tree creation

    semanticGraph = SemanticGraphFactory.makeFromTree(depTree, false);

    System.out.println("compact graph" + semanticGraph.toCompactString());

    for (SemanticGraphEdge e : semanticGraph.edgeIterable()) {
        if (EnglishGrammaticalRelations.SUBJECT.isAncestor(e.getRelation())) {
            System.out.println("This is any subject");
        }

    }

您能否给我一个正确的例子来使用或测试这个新版本？

Answer 1

从版本3.5.2开始，CoreNLP中的默认依赖关系表示是新的Universal Dependencies表示。作为此更改的一部分，语法关系现在在UniversalEnglishGrammaticalRelations类中定义，因此您必须更改上一个if语句，如下所示：

for (SemanticGraphEdge e : semanticGraph.edgeIterable()) {
  if (UniversalEnglishGrammaticalRelations.SUBJECT.isAncestor(e.getRelation())) {
    System.out.println("This is any subject");
  }
}

如何检查英语语法关系祖先？

1 个答案: