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20242026
most citedHow Causal Abstraction Underpins Computational Explanation

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cs.CL2025

HyperSteer: Activation Steering at Scale with Hypernetworks

Jiuding Sun, Sidharth Baskaran, Zhengxuan Wu +3

Steering language models (LMs) by modifying internal activations is a popular approach for controlling text generation. Unsupervised dictionary learning methods, e.g., sparse autoe…

cs.CL2025

HyperDAS: Towards Automating Mechanistic Interpretability with Hypernetworks

Jiuding Sun, Jing Huang, Sidharth Baskaran +4

Mechanistic interpretability has made great strides in identifying neural network features (e.g., directions in hidden activation space) that mediate concepts(e.g., the birth year…

cs.CL2025

AxBench: Steering LLMs? Even Simple Baselines Outperform Sparse Autoencoders

Zhengxuan Wu, Aryaman Arora, Atticus Geiger +5

Fine-grained steering of language model outputs is essential for safety and reliability. Prompting and finetuning are widely used to achieve these goals, but interpretability resea…

cs.CL2024

RAVEL: Evaluating Interpretability Methods on Disentangling Language Model Representations

Jing Huang, Zhengxuan Wu, Christopher Potts +2

Individual neurons participate in the representation of multiple high-level concepts. To what extent can different interpretability methods successfully disentangle these roles? To…

cs.CL2024

ReFT: Representation Finetuning for Language Models

Zhengxuan Wu, Aryaman Arora, Zheng Wang +4

Parameter-efficient finetuning (PEFT) methods seek to adapt large neural models via updates to a small number of weights. However, much prior interpretability work has shown that r…