https://opennlp.apache.org/docs/2.5.4/apidocs/opennlp-tools/opennlp/tools/postag/POSTaggerCrossValidator.html
POSTaggerCrossValidator (Apache OpenNLP Tools 2.5.4 API)
declaration: package: opennlp.tools.postag, class: POSTaggerCrossValidator
apache opennlptoolsapi