---
title: Semantic Encoder
slug: nbtb0041
canonical_url: https://docs.coveo.com/en/nbtb0041/
collection: glossary
source_format: adoc
---
# Semantic Encoder
A [Coveo Machine Learning (Coveo ML)](https://docs.coveo.com/en/188/) {doctitle} (SE) [model](https://docs.coveo.com/en/1012/) uses [embeddings](https://docs.coveo.com/en/ncc87383/) and [vector](https://docs.coveo.com/en/nccf9008/) search to retrieve [items](https://docs.coveo.com/en/210/) from your [index](https://docs.coveo.com/en/204/) based on their semantic similarity with the [query](https://docs.coveo.com/en/231/).