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Xiaohao Liu

7 accepted papers

2026

Align Once, Benefit Multilingually: Enforcing Multilingual Consistency for LLM Safety Alignment

ICLR 2026poster

The widespread deployment of large language models (LLMs) across linguistic communities necessitates reliable multilingual safety alignment. However, recent efforts to extend alignment to other languages often require substantial resources, either through large-scale, high-quality supervision in the…

Cited by 0SourceScholar
2026

AlphaSteer: Learning Refusal Steering with Principled Null-Space Constraint

ICLR 2026poster

As LLMs are increasingly deployed in real-world applications, ensuring their ability to refuse malicious prompts, especially jailbreak attacks, is essential for safe and reliable use. Recently, activation steering has emerged as an effective approach for enhancing LLM safety by adding a refusal dire…

Cited by 0SourcecodeScholar
2026

Calibrated Multimodal Representation Learning with Missing Modalities

ICML 2026poster

Multimodal representation learning harmonizes distinct modalities by aligning them into a unified latent space. Recent research generalizes traditional cross-modal alignment to produce enhanced multimodal synergy but requires all modalities to be present for a common instance, making it challenging …

Cited by 0SourceScholar
2026

Hyperbolic Multimodal Continual Learning

ICML 2026poster

Hyperbolic geometry has recently emerged as a powerful representation space for multimodal learning, as it naturally captures hierarchical semantic structure across modalities. Despite this progress, how such representations behave under continual learning poses fundamentally different challenges th…

Cited by 0SourceScholar
2025

L-MTP: Leap Multi-Token Prediction Beyond Adjacent Context for Large Language Models

NeurIPS 2025poster

Large language models (LLMs) have achieved notable progress. Despite their success, next-token prediction (NTP), the dominant method for LLM training and inference, is constrained in both contextual coverage and inference efficiency due to its inherently sequential process. To overcome these challen…

Cited by 0SourcecodeScholar