- openNLP (Apache License V2.0, GNU Library or Lesser General Public License (LGPL))
- LingPipe (License)
- ABNER (Common Public License)
- GENIA Tagger (BSD_2Clause)
- MetaMap (UMLS License)
ABNERはBioCreativeとNLPBA双方。
LingPipeはcmd_ne_en_bio_genia.shとcmd_ne_en_bio_genetag.sh双方。
更にLingPipeはここを参考にすべし。