Author

Xiaozhi Wang

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#natural language process... Preprint Sep 2026

From Input to Output: A Flexible Agent for Dual-End Interpretation of Sparse Autoencoder Features

Functional interpretation is introduced, which characterizes an SAE feature as a mapping from its activating input semantics to its output effects under intervention, and Dual-End Agentic Feature Interpretation (DAFI) is presented, an agent that actively gathers evidence and refines input-side, output-side, and functio...

De-Wen Liu, Zi-Xu Li, Jonathan Pan et al. · 0 citations

Preprint Aug 2026

SAEVerbalizer: Generating Explanations for Sparse Autoencoder Features via Representation Verbalization

SAEVerbalizer is introduced, a framework that injects SAE decoder directions into an LLM's representations and fine-tunes the LLM's downstream layers to generate natural-language explanations of the injected features.

Weihang Meng, Hong-Zhu Guo, Yi Jing et al. · 0 citations

Preprint Aug 2026

TRAJDEBUG: Tracing Error Lifecycle to Identify Critical Failures in Long-Horizon Agent Trajectories

TrajDebug is proposed, an error-lifecycle tracing framework that addresses long-trajectory error discovery with multi-granularity history compression and evidence-based error identification, and supports critical attribution by tracing each error's resolution status and terminal impact.

Yunjia Qi, Zehua Yin, Xin Shi et al. · 4 citations · ⚡1