Question

我正在尝试按照此处的How can I train my own NER model教程：https://nlp.stanford.edu/software/crf-faq.shtml#b

当我运行test命令来测试模型性能时： java -cp stanford-ner.jar edu.stanford.nlp.ie.crf.CRFClassifier -loadClassifier ner-model.ser.gz -testFile jane-austen-emma-ch2.tsv

我收到以下错误：

Invoked on Thu May 10 15:40:41 IST 2018 with arguments: -loadClassifier ner-model.ser.gz -testFile jane-austen-emma-ch2.tsv
testFile=jane-austen-emma-ch2.tsv
loadClassifier=ner-model.ser.gz
Loading classifier from ner-model.ser.gz ... done [0.2 sec].
Error on line 1: CHAPTER        O
Exception in thread "main" java.lang.UnsupportedOperationException: 
Argument array lengths differ: [class edu.stanford.nlp.ling.CoreAnnotations$TextAnnotation, class edu.stanford.nlp.ling.CoreAnnotations$AnswerAnnotation] vs. [CHAPTER, , O]
    at edu.stanford.nlp.ling.CoreLabel.initFromStrings(CoreLabel.java:263)
    at edu.stanford.nlp.ling.CoreLabel.<init>(CoreLabel.java:150)
    ...
    ...
    at edu.stanford.nlp.ie.AbstractSequenceClassifier.classifyAndWriteAnswers(AbstractSequenceClassifier.java:1189)
   at edu.stanford.nlp.ie.AbstractSequenceClassifier.classifyAndWriteAnswers(AbstractSequenceClassifier.java:1133)
   at edu.stanford.nlp.ie.AbstractSequenceClassifier.classifyAndWriteAnswers(AbstractSequenceClassifier.java:1087)
   at edu.stanford.nlp.ie.crf.CRFClassifier.main(CRFClassifier.java:3033)

我使用了提供的培训和测试文件。知道这里出了什么问题吗？

Answer 1

问题是斯坦福网站上提供的jane-austen-emma-ch2.tsv文件有一个额外的制表符。删除后，它解决了问题。

Stanford NLP - UnsupportedOperationException：参数数组长度不同

1 个答案: