The analysis-extras plugin provides additional analyzers that rely upon large dependencies/dictionaries.
It includes integration with ICU for multilingual support, analyzers for Chinese and Polish, and integration with OpenNLP for multilingual tokenization, part-of-speech tagging lemmatization, phrase chunking, and named-entity recognition.
Each of the jars below relies upon including /dist/solr-analysis-extras-X.Y.jar in the solrconfig.xml
ICU relies upon lucene-libs/lucene-analyzers-icu-X.Y.jar and lib/icu4j-X.Y.jar
Smartcn relies upon lucene-libs/lucene-analyzers-smartcn-X.Y.jar
Stempel relies on lucene-libs/lucene-analyzers-stempel-X.Y.jar
Morfologik relies on lucene-libs/lucene-analyzers-morfologik-X.Y.jar and lib/morfologik-*.jar
OpenNLP relies on lucene-libs/lucene-analyzers-opennlp-X.Y.jar and lib/opennlp-*.jar