# Spelling Correction

> Source: https://sukruyusufkaya.com/en/glossary/spelling-correction
> Updated: 2026-05-13T20:03:26.332Z
> Type: glossary
> Category: dogal-dil-isleme
**TLDR:** A preprocessing technique that converts misspelled text into more accurate forms to improve downstream NLP quality.

<p>Spelling correction is especially important in noisy sources such as user input, call-center notes, OCR output, and social media text. It can be implemented through methods ranging from simple rule-based correction to context-aware Transformer models. When done well, it directly improves retrieval, classification, and information extraction; when done poorly, it can distort meaning.</p>