Sparse Autoencoder as a Zero-Shot Classifier for Concept Erasing in Text-to-Image Diffusion Models. - Zhihua Tian; Sirun Nan; Ming Xu 002; Shengfang Zhai; Wenjie Qu 001; Jian Liu 012; Kui Ren 001; Ruoxi Jia 001; Jiaheng Zhang (CoRR, 2025)