search

sergey-tihon / Stanford.NLP.NET

Stanford NLP for .NET
http://sergey-tihon.github.io/Stanford.NLP.NET/
MIT License
595 stars 123 forks source link

"Last year" not NERed as a DATE #80

Closed solarbear123 closed 3 years ago

solarbear123 commented 6 years ago

Tried sample code at https://github.com/sergey-tihon/Stanford.NLP.NET/blob/master/samples/Stanford.NLP.CoreNLP.CSharp/Program.cs, and tested it with the sentence "the economy grew by 2% last year". "Last year" was not recognized as a DATE.

In contrast, http://nlp.stanford.edu:8080/corenlp/process does NER "last year" as a DATE.

sergey-tihon commented 6 years ago

I do not know the asnwer... but I think that this may happens because of this line

props.setProperty("ner.useSUTime", "0");

this line means that we turn off sutime in ner (that probably affect ner in your case)

ner.useSUTime =

But if you remove this line, you will get an exception that I do not know how to fix... 😞 

Unhandled Exception: edu.stanford.nlp.util.ReflectionLoading+ReflectionLoadingException: Error creating edu.stanford.nlp.time.TimeExpressionExtractorImpl ---> edu.stanford.nlp.util.MetaClass+ClassCreationException: MetaClass couldn't create public edu.stanford.nlp.time.TimeExpressionExtractorImpl(java.lang.String,java.util.Properties) with args [sutime, {}] ---> java.lang.reflect.InvocationTargetException
   at __<Invoker>(Object[] )
   at Java_sun_reflect_ReflectionFactory.FastConstructorAccessorImpl.newInstance(Object[] args)
   at java.lang.reflect.Constructor.newInstance(Object[] initargs, CallerID )
   at edu.stanford.nlp.util.MetaClass.ClassFactory.createInstance(Object[] params)
   --- End of inner exception stack trace ---
   at edu.stanford.nlp.util.MetaClass.ClassFactory.createInstance(Object[] params)
   at edu.stanford.nlp.util.MetaClass.createInstance(Object[] objects)
   at edu.stanford.nlp.util.ReflectionLoading.loadByReflection(String className, Object[] arguments)
   --- End of inner exception stack trace ---
   at edu.stanford.nlp.util.ReflectionLoading.loadByReflection(String className, Object[] arguments)
   at edu.stanford.nlp.time.TimeExpressionExtractorFactory.create(String className, String name, Properties props)
   at edu.stanford.nlp.time.TimeExpressionExtractorFactory.createExtractor(String name, Properties props)
   at edu.stanford.nlp.ie.regexp.NumberSequenceClassifier..ctor(Properties props, Boolean useSUTime, Properties sutimeProps)
   at edu.stanford.nlp.ie.NERClassifierCombiner..ctor(Boolean applyNumericClassifiers, Language nerLanguage, Boolean useSUTime, Boolean augmentRegexNER, Properties nscProps, String[] loadPaths)
   at edu.stanford.nlp.pipeline.NERCombinerAnnotator..ctor(Properties properties)
   at edu.stanford.nlp.pipeline.AnnotatorImplementations.ner(Properties properties)
   at edu.stanford.nlp.pipeline.StanfordCoreNLP.lambda$getNamedAnnotators$44(Properties , AnnotatorImplementations )
   at edu.stanford.nlp.pipeline.StanfordCoreNLP.__<>Anon6.apply(Object , Object )
   at edu.stanford.nlp.pipeline.StanfordCoreNLP.lambda$getDefaultAnnotatorPool$65(Entry , Properties , AnnotatorImplementations )
   at edu.stanford.nlp.pipeline.StanfordCoreNLP.__<>Anon27.get()
   at edu.stanford.nlp.util.Lazy.3.compute()
   at edu.stanford.nlp.util.Lazy.get()
   at edu.stanford.nlp.pipeline.AnnotatorPool.get(String name)
   at edu.stanford.nlp.pipeline.StanfordCoreNLP.construct(Properties , Boolean , AnnotatorImplementations , AnnotatorPool )
   at edu.stanford.nlp.pipeline.StanfordCoreNLP..ctor(Properties props, Boolean enforceRequirements, AnnotatorPool annotatorPool)
   at edu.stanford.nlp.pipeline.StanfordCoreNLP..ctor(Properties props, Boolean enforceRequirements)
   at edu.stanford.nlp.pipeline.StanfordCoreNLP..ctor(Properties props)

The issue is old but still without a proper fix https://stackoverflow.com/questions/28389564/stanford-corenlp-error-creating-edu-stanford-nlp-time-timeexpressionextractorimp/28459472