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---
title: "Representation Space"
created: 2026-06-01
updated: 2026-06-01
type: concept
tags: [representation-geometry, interpretability]
sources: [raw/papers/xu-why-steering-works-2026.md]
---
# Representation Space表示空间
> 占位符页面 — 待扩展
## 概述
表示空间指LLM中间层的激活空间 $\mathbb{R}^{d_l}$,其中词元表示通过层层仿射变换 $h_{i+1} = W h_i + b$ 形成。关键假设包括 [[linear-representation-hypothesis]](概念对应线性方向)和 [[activation-manifold]](激活集中在低维流形上)。
## 相关概念
- [[linear-representation-hypothesis]]
- [[activation-manifold]]
- [[representation-validity]]
- [[dynamic-weight-updates]]