olemus
ISO/IEC 22989:
sõna grammatiliste omaduste põhjal ta sõnaliigi (verb, nimisõna, omadussõna vm) määramise ülesanne
= task of assigning a category (e.g. verb, noun, adjective) to a word based on its grammatical properties

ülevaateid
https://en.wikipedia.org/wiki/Part-of-speech_tagging

https://ai.plainenglish.io/unlocking-the-power-of-nlp-part-of-speech-tagging-and-its-challenges-419c1790446d

https://www.shiksha.com/online-courses/articles/pos-tagging-in-nlp/

https://atharvamali24.medium.com/part-of-speech-pos-tagging-techniques-2ffa661af4a7

https://www.freecodecamp.org/news/an-introduction-to-part-of-speech-tagging-and-the-hidden-markov-model-953d45338f24/

https://core.ac.uk/download/pdf/61799956.pdf

https://web.stanford.edu/~jurafsky/slp3/old_oct19/8.pdf