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wiki/concepts/Embedding.md
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---
id: embedding
title: "Embedding"
type: concept
tags: [LLM, vector, representation]
sources:
- "[[RAG从入门到精通系列1：基础RAG]]"
- "[[LLM Terms Framework]]"
last_updated: 2025-12-18
---
## Definition
Embedding（向量化）是将文本转换为数值向量的技术，使计算机能够计算词与词之间的距离和语义关系。
## Mechanism
- 将文本映射到高维向量空间
- 语义相似的文本在向量空间中距离更近
- 支持相似度搜索和聚类分析
## Use Cases
- RAG系统的文档索引
- 语义搜索
- 文本相似度比较
- 推荐系统
## Connections
- [[LLM]] ← uses ← [[Embedding]]
- [[RAG]] ← uses ← [[Embedding]]
- [[向量数据库]] ← stores ← [[Embedding]]