通过传递String而不是字符串数组来解析Stanford Parser [英] Parse sentence Stanford Parser by passing String not an array of strings

问题描述

是否可以通过传递字符串而不是字符串数组来解析使用Stanford Parser的句子。这是他们在简短教程中给出的示例（查看文档）：

Is it possible to parse a sentence using the Stanford Parser by passing a string and not an array of strings. This is the example they gave in their short tutorial (See Docs) :

以下示例：

    import java.util.*;
    import edu.stanford.nlp.ling.*;
    import edu.stanford.nlp.trees.*;
    import edu.stanford.nlp.parser.lexparser.LexicalizedParser;

    class ParserDemo {
      public static void main(String[] args) {
        LexicalizedParser lp = LexicalizedParser.loadModel("edu/stanford/nlp/models/lexparser/englishPCFG.ser.gz");
        lp.setOptionFlags(new String[]{"-maxLength", "80", "-retainTmpSubcategories"});

        String[] sent = { "This", "is", "an", "easy", "sentence", "." }; // This is the sentence to be parsed
        List<CoreLabel> rawWords = Sentence.toCoreLabelList(sent);
        Tree parse = lp.apply(rawWords);
        parse.pennPrint();
        System.out.println();

        TreebankLanguagePack tlp = new PennTreebankLanguagePack();
        GrammaticalStructureFactory gsf = tlp.grammaticalStructureFactory();
        GrammaticalStructure gs = gsf.newGrammaticalStructure(parse);
        List<TypedDependency> tdl = gs.typedDependenciesCCprocessed();
        System.out.println(tdl);
        System.out.println();

      }

}

我正在尝试看看我是否可以这样做是因为我需要从MySQL数据库中获取句子并将它们直接解析为字符串。我可以纠正句子并将单词，逗号和句点添加到字符串数组中。但是，为了对这些句子进行标记，我将不得不使用Stanford Tokenizer，PTBTokenizer。此处列出的此tokenizer的构造函数

I am trying to see if I can do this because I need to get sentences from a MySQL database and parse them directly as strings. I could tokezine the sentences and add the words, commas, and period to a String Array, However, to tokenize these sentences, I would have to use the Stanford Tokenizer , PTBTokenizer. The constructor of this tokenizer as listed here

（查看文档）

需要一个java.io.FileReader对象，但我不是从目录中读取文件。所以我想知道是否有办法通过传递字符串直接解析句子，或者如果我可以通过标记句子而不需要java.io.FileReader对象来解决我的问题。

requires a "java.io.FileReader" Object, but I am not reading a file from directory. So I am wondering if there is a way to either Parse the sentence directly by passing a string, or if I can solve my problem by tokenizing the sentence without requiring a "java.io.FileReader" Object.

推荐答案

对于简单用法，使用语法的默认tokenizer和默认tokenizer选项，您可以使用一种简单方便的方法：

For simple usage, with the default tokenizer and default tokenizer options for a grammar, there is an easy convenience method you can use:

lp.parse(String)

但你指向的 PTBTokenizer 方法没有采用 FileReader ，他们只需要 Reader ，因此您也可以通过将String包装在 StringReader中，轻松地在String处指向 PTBTokenizer 。如果您需要更多地控制标记化的发生，这是正确的方法。

But the PTBTokenizer methods that you point at don't take a FileReader, they just take a Reader, so you can also easily point a PTBTokenizer at a String by wrapping the String in a StringReader. This is the right approach if you need more control over how tokenization happens.

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