Sparse Readout Prism: Explaining Logit-Lens Scores in Features Instead of Tokens
- 类型:arxiv
- 标识:2609.01936
- 链接:https://arxiv.org/abs/2609.01936
- 主分类:rag
- 形态:method
- 被引:0
- 被引来源:Semantic Scholar + OpenAlex
- S2被引:0
- OpenAlex被引:0
- 影响力被引:0
- TLDR:Sarse Readout Prism (SRP), which decomposes the readout using only its weights and expresses any token logit or logit difference as a sum of contributions from sparse readout features, reveals readout features as a new unit of analysis for lens readings, exposing structure that token identities can obscure and enabling comparisons across tokens, contexts, layers, and lenses.
- OpenAlex ID:W7207836898
- OpenAlex DOI:10.48550/arxiv.2609.01936
- DOI:10.48550/arxiv.2609.01936
- DOI来源:OpenAlex
- 开放获取:green
- 开放获取链接:https://arxiv.org/pdf/2609.01936
- OpenAlex更新:2026-09-06
- 待LLM分类:否
- 标题中文:Sparse Readout Prism:用特征而非 token 解释 Logit-Lens 分数
- TLDR中文:Sparse Readout Prism (SRP) 仅使用 readout 的权重对其进行分解,将任意 token logit 或 logit 差表示为来自稀疏 readout 特征贡献之和,揭示了 readout 特征作为 lens 解读新单元的价值,暴露出 token 身份可能掩盖的结构,并支持跨 token、上下文、层与 lens 的比较。
- 来源文件:
- /inbox/tom/_candidates/2026-09-04-agent-rag-longcontext-candidates.json
- [OpenAlex backfill]
- [S2 enrich]