java - 使用 StanfordCoreNLP 时出错

Question

我正在尝试将 Stanford CoreNLP 用作我的 Java 程序中的库。我使用 IntelliJ 作为 IDE。我试图测试这个库，所以我写了这段代码:

import edu.stanford.nlp.pipeline.StanfordCoreNLP;

import java.util.Properties;

/**
 * Created by Benjamin on 15/5/4.
 */
public class SentimentAnaTest {
    public static void main(String[] args) {
        Properties props = new Properties();
        props.setProperty("annotators", "tokenize, ssplit, pos, lemma, ner, parse, dcoref");
        StanfordCoreNLP pipeline = new StanfordCoreNLP(props);
    }
}

它显示如下错误:

Adding annotator tokenize
TokenizerAnnotator: No tokenizer type provided. Defaulting to PTBTokenizer.
Adding annotator ssplit
Adding annotator pos
Exception in thread "main" java.lang.RuntimeException: edu.stanford.nlp.io.RuntimeIOException: Unrecoverable error while loading a tagger model
    at edu.stanford.nlp.pipeline.AnnotatorFactories$4.create(AnnotatorFactories.java:292)
    at edu.stanford.nlp.pipeline.AnnotatorPool.get(AnnotatorPool.java:85)
    at edu.stanford.nlp.pipeline.StanfordCoreNLP.construct(StanfordCoreNLP.java:289)
    at edu.stanford.nlp.pipeline.StanfordCoreNLP.<init>(StanfordCoreNLP.java:126)
    at edu.stanford.nlp.pipeline.StanfordCoreNLP.<init>(StanfordCoreNLP.java:122)
    at SentimentAnaTest.main(SentimentAnaTest.java:12)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)
Caused by: edu.stanford.nlp.io.RuntimeIOException: Unrecoverable error while loading a tagger model
    at edu.stanford.nlp.tagger.maxent.MaxentTagger.readModelAndInit(MaxentTagger.java:770)
    at edu.stanford.nlp.tagger.maxent.MaxentTagger.<init>(MaxentTagger.java:298)
    at edu.stanford.nlp.tagger.maxent.MaxentTagger.<init>(MaxentTagger.java:263)
    at edu.stanford.nlp.pipeline.POSTaggerAnnotator.loadModel(POSTaggerAnnotator.java:97)
    at edu.stanford.nlp.pipeline.POSTaggerAnnotator.<init>(POSTaggerAnnotator.java:77)
    at edu.stanford.nlp.pipeline.AnnotatorImplementations.posTagger(AnnotatorImplementations.java:59)
    at edu.stanford.nlp.pipeline.AnnotatorFactories$4.create(AnnotatorFactories.java:290)
    ... 10 more
Caused by: java.io.IOException: Unable to resolve "edu/stanford/nlp/models/pos-tagger/english-left3words/english-left3words-distsim.tagger" as either class path, filename or URL
    at edu.stanford.nlp.io.IOUtils.getInputStreamFromURLOrClasspathOrFileSystem(IOUtils.java:481)
    at edu.stanford.nlp.tagger.maxent.MaxentTagger.readModelAndInit(MaxentTagger.java:765)
    ... 16 more

我读了一个解决方案 here但无法弄清楚问题出在哪里，因为我从 Maven 中央存储库添加了库，其中已经包含“stanford-corenlp-3.5.2-models.jar”。

从错误消息来看，程序似乎正在尝试从 edu/stanford/nlp/models/pos-tagger/english-left3words/english-left3words-distsim.tagger 加载文件，所以我从 here 下载标记器文件并将其放入 /edu/stanford/nlp/models/pos-tagger/english-left3words/english-left3words-distsim.tagger。但是还是不行。

谁能告诉我这个错误是怎么回事并帮助我解决它？谢谢!

Answer 1

我遇到了同样的问题。固定使用:

<dependencies>
<dependency>
    <groupId>edu.stanford.nlp</groupId>
    <artifactId>stanford-corenlp</artifactId>
    <version>3.5.2</version>
</dependency>
<dependency>
    <groupId>edu.stanford.nlp</groupId>
    <artifactId>stanford-corenlp</artifactId>
    <version>3.5.2</version>
    <classifier>models</classifier>
</dependency>
</dependencies>

或者对于 SBT:

"edu.stanford.nlp" % "stanford-corenlp" % "3.5.2",
"edu.stanford.nlp" % "stanford-corenlp" % "3.5.2" classifier "models",