https://zen-wu.social/blog.html Core dump about interpretability, language models, and other stuff by Zhengxuan Wu en-us https://zen-wu.social/nosr/index.html A quieter corner: series posts collected on a separate NOSR page. Wed, 31 Dec 2025 00:00:00 GMT https://zen-wu.social/nosr/index.html https://zen-wu.social/steer/index.html Representation steering is a powerful tool for understanding and controlling the behavior of language models. Lessons learned from our recent work on training better representation steering methods. Fri, 12 Jul 2025 00:00:00 GMT https://zen-wu.social/steer/index.html https://zen-wu.social/reft/index.html Representation finetuning (ReFT) represents a novel approach to parameter-efficient, powerful, and interpretable fine-tuning of language models. Fri, 05 Apr 2024 00:00:00 GMT https://zen-wu.social/reft/index.html https://zen-wu.social/boundless_das/index.html Building on the theory of causal abstraction, we release Boundless DAS for finding representations that play causal roles in LLMs with billions of parameters. Tue, 09 May 2023 00:00:00 GMT https://zen-wu.social/boundless_das/index.html