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我使用Apache OpenNLP的命令行工具创建了一个模型来识别命名实体。下面的代码使用文件sentences4OpenNLP.txt作为训练集创建模型。加载NER .bin文件时出错，作为openNLP :: Maxent_Entity_Annotator（）的模型参数
opennlp TokenNameFinderTrainer -type maxent -model C:\Users\Documents\en-ner-org.bin -lang en -data C:\Users\Documents\apache-opennlp-1.6.0\sentences4OpenNLP.txt -encoding UTF-8
我从命令行通过将句子传递给标记来测试模型，并且模型似乎运行良好。但是，我无法成功使用R中的模型。我尝试使用以下几行来创建组织注释函数。使用相同的代码来加载从OpenNLP下载的模型可以正常工作。
modelNER <- "C:/Users/Documents/en-ner-org.bin"
oa <- openNLP::Maxent_Entity_Annotator(language = "en",
kind = "organization",
probs = TRUE,
model = modelNER)
当上述代码运行时我得到一个错误说：
Could not instantiate the opennlp.tools.namefind.TokenNameFinderFactory. The initialization throw an exception.
opennlp.tools.util.ext.ExtensionNotLoadedException: Unable to find implementation for opennlp.tools.util.BaseToolFactory, the class or service opennlp.tools.namefind.TokenNameFinderFactory could not be located!
at opennlp.tools.util.ext.ExtensionLoader.instantiateExtension(ExtensionLoader.java:97)
at opennlp.tools.util.BaseToolFactory.create(BaseToolFactory.java:106)
at opennlp.tools.util.model.BaseModel.initializeFactory(BaseModel.java:254)
Error in .jnew("opennlp.tools.namefind.TokenNameFinderModel", .jcast(.jnew("java.io.FileInputStream", :
java.lang.IllegalArgumentException: opennlp.tools.util.InvalidFormatException: Could not instantiate the opennlp.tools.namefind.TokenNameFinderFactory. The initialization throw an exception.
at opennlp.tools.util.model.BaseModel.loadModel(BaseModel.java:237)
at opennlp.tools.util.model.BaseModel.<init>(BaseModel.java:181)
at opennlp.tools.namefind.TokenNameFinderModel.<init>(TokenNameFinderModel.java:110)
如何修正这个错误将是一个很大的帮助任何意见。提前致谢。