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Fen Xiao

3 papers indexed

arxivcs.AIcs.SD2026-07-02

DRL-CLBA: A Clean Label Backdoor Attack for Speech Classification via DDPG Reinforcement Learning

Yueming Huang, Wenhan Yao, Fen Xiao, Xiarun Chen, Weiping Wen

Deep learning models for speech classification are vulnerable to backdoor attacks, where malicious triggers cause misclassification at inference time. While sample-specific attacks can bypass many defenses, they often rely on poisoned label attack, making them detectable via manu…

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arxivcs.CRcs.AIcs.SD2026-07-02

Pmeta-TLA: Backdoor Attacks for Speech Classification Models via Meta-Learning with Timbre Leakage Attack

Yueming Huang, Wenhan Yao, Fen Xiao, Xiarun Chen, Weiping Wen

Recently, speech classification methods have gained widespread adoption in intelligent gadgets. Current study indicates that backdoor attacks provide a substantial security concern to these models, underscoring the pressing necessity to investigate additional potential attack tec…

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arxivcs.CVcs.CR2026-06-30

No Prompt, No Leaks: A Robust Generative Steganography Framework via Prompt-Free Diffusion

Jingwen Cai, Fen Xiao, Shuhua Deng, Xieping Gao

Generative image steganography synthesizes stego images directly from secret information to achieve inherent security advantages. Latent Diffusion Models (LDMs) have recently emerged as a fundamental image steganography framework that modulates secret latent representations with…

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