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Yue Xing

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#artificial intelligence Preprint Sep 2026

The Like Trap: Multi-Stage Poisoning against Agents in Similarity-based Recommendation Systems

With recent advancements in large language models (LLMs) and LLM-based agents, these agents are becoming increasingly autonomous and gaining broader access to act on users'behalf on the internet. However, the vulnerability of automated agents deployed on social media platforms (e.g., for managing a user's personal acco...

Yue Xing, Peng-Fei He, Zi-Tao Li · 0 citations
Preprint Aug 2026

Fair on the Surface? Benchmarking Hidden-Output Fairness Gaps in LLM Recommenders

Fairness audits for LLM-based recommenders have largely focused on observable outputs, implicitly assuming that stable recommendations reflect stable internal processing. We challenge this assumption with FairGap, the first benchmark to jointly evaluate recommendation fairness at two levels: observable output shift (OB...

Changyu Lu, Arya Fayyazi, Junhao Zhang et al. · 0 citations

Adaptive Multi-Step Lookahead Decoding for Diffusion Language Models

AdaLook, an adaptive lookahead framework for DLM decoding that dynamically determines whether to continue rollout based on candidate-score variance and further enables branch expansion when intermediate rollout states require additional exploration, is proposed.

Yingqian Cui, Wei Deng, Lantao Mei et al. · 0 citations
Jul 2026

Efficient LLM Adversarial Training via Low-Rank Defense and Circuit-Guided Surrogates

This work comprehensively investigates computation-efficient strategies to speed up latent adversarial training from two complementary perspectives, and reduces per-step adversarial-training FLOPs by 48.1% while requiring only 0.0118% trainable parameters.

Weiyi He, Yuping Lin, Jiliang Tang et al. · 0 citations

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