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"""Snowball analyzer for Annif, based on nltk Snowball stemmer."""
import functools
from . import analyzer
class SnowballAnalyzer(analyzer.Analyzer):
name = "snowball"
def __init__(self, param, **kwargs):
self.param = param
import nltk.stem.snowball
self.stemmer = nltk.stem.snowball.SnowballStemmer(param)
super().__init__(**kwargs)
@functools.lru_cache(maxsize=500000)
def _normalize_word(self, word):
return self.stemmer.stem(word.lower())
NatLibFi /
Annif
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