# Dice Coefficient

> Source: https://sukruyusufkaya.com/en/glossary/dice-coefficient
> Updated: 2026-05-13T20:01:10.904Z
> Type: glossary
> Category: bilgisayarli-goru
**TLDR:** A segmentation-focused evaluation metric that measures overlap between predicted and ground-truth masks.

<p>The Dice coefficient is frequently used in tasks such as medical segmentation where pixel overlap is critical. It strongly summarizes the intersection between two masks and can be more meaningful than standard accuracy for small target regions. Differentiable variants are also used as training losses. It is one of the metrics that evaluates segmentation performance in a way that is closer to application reality.</p>