Stemming

The stemmer module provides rule-based stemming for Nepali words by stripping common suffixes.

Features

• Rule-based stemmer: Strips case markers, possessives, plurals, verb endings
• Text-level stemming: Stem all words in a text at once
• Configurable rules: Extensible suffix rules via JSON

Basic Usage

from nepalikit.stemmer import stem, stem_text

# Stem a single word
root = stem("नेपालमा")
print(root)  # "नेपाल"

root = stem("गाउँहरू")
print(root)  # "गाउँ"

# Stem all words in text
text = "म घरमा छु।"
stemmed = stem_text(text)
print(stemmed)  # "म घर छु।"

How It Works

The stemmer applies suffix stripping rules in order, removing known suffixes from the end of words. Rules are stored in nepalikit/data/stemmer_rules.json and can be customized.