based word for battling and lemmatization-CodePudding

All,

What is the base form of battling? Lemmatization results in battling where as I think it should be battle. Is my understanding of lemmatization wrong?

from nltk import download
download('wordnet')
from nltk.stem.wordnet import WordNetLemmatizer

lemmatizer = WordNetLemmatizer()

def get_lemma(word):
    return lemmatizer.lemmatize(word)

get_lemma('battling')

The same is for the word coming

CodePudding user response：

The default lemmatization pos (Part Of Speech) is noun for the lemmatize method. And it produces the output battling.

If you change the pos to a verb, as is the case here, you get the proper result.

lemmatizer.lemmatize("battling", wordnet.VERB)

will give the base battle