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javanlpstanford-nlp

Can not get an Output file in Stanford NER

I'm new to Stanford NER and have some problems. I have downloaded Stanford Named Entity Recognizer version 3.6.0. It works, no problem. But I can't get a tagged text as an output file. Read about extracting data on this site: http://www.themacroscope.org/2.0/using-the-stanford-named-entity-recognizer-to-extract-data-from-texts (Windows user). Tried to do the same, but got a few errors in command line:

Exception in thread "main" java.lang.NoClassDefFoundError: org/slf4j/LoggerFacto
ry
        at edu.stanford.nlp.io.IOUtils.<clinit>(IOUtils.java:42)
        at edu.stanford.nlp.ie.AbstractSequenceClassifier.loadClassifier(Abstrac
tSequenceClassifier.java:1484)
        at edu.stanford.nlp.ie.AbstractSequenceClassifier.loadClassifierNoExcept
ions(AbstractSequenceClassifier.java:1497)
        at edu.stanford.nlp.ie.crf.CRFClassifier.main(CRFClassifier.java:3015)
Caused by: java.lang.ClassNotFoundException: org.slf4j.LoggerFactory
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        ... 4 more

Can somebody explain what's wrong and how should I correct it? Thank you!

Solution

  • You need to include the lib folder in your CLASSPATH. It contains the necessary jars.