Author

Yi-Jun Tian

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Preprint Oct 2026

Safety Kernel: Mechanistic Alignment for Cross-Lingual Defense in LLMs

The safety capabilities of large language models (LLMs) are highly uneven across different languages, often allowing cross-lingual attacks to bypass safety guardrails. Existing alignment methods predominantly rely on external alignment signals and provide limited insight into underlying neuron-level mechanisms, making...

Cheng-Yu Xie, Fei Shen, Shu-Yi Miao et al. · 0 citations

#artificial intelligence Preprint Oct 2026

Beyond Post-Hoc Rewards: Privileged Reasoning Exploration for Multimodal Embeddings

Advances in Multimodal Large Language Models (MLLMs) have driven substantial progress in multimodal embeddings. Recent methods exploit generative capabilities by augmenting embedded inputs with self-generated reasoning to produce more informative embeddings. However, conventional retrieval supervision for training embe...

Tian-Yu Yang, Yi-Jun Tian, Lars Benedikt Kaesberg et al. · 0 citations