Beginner · NLP

Lemer

Visual diagram · (in preparation) · Math · (in preparation) · Worked example · 3 difficulty levels.

TL;DR. The base form of a word, often obtained through morphological analysis, ignoring inflections.

Technical Definition

The base form of a word, often obtained through morphological analysis, ignoring inflections.

How it works

A lemma is the canonical or dictionary form of a word. For example, 'running', 'ran', and 'runs' all have the lemma 'run'. Lemmatization is the process of reducing inflected words to their lemma. This normalization helps in improving search results and text analysis by treating different forms of the same word as a single unit, aiding in frequency counts and semantic accuracy.