collaborators

16 papers

cs.CL2026

Understanding Machine Taste: Aesthetic Agreement Across Foundation Models in K-pop

Kaishen Wang, Yucheng Pan, Xuehao Cui +2

As foundation models enter creative industries, understanding their aesthetic preferences becomes an important step toward AI-assisted creative decision making. In this work, we in…

cs.CR2026

TTMark: Pairwise Distortion-Free Watermarking Beyond Single-Token Entropy

Ruibo Chen, Zhengmian Hu, Donghang Lu +5

Distortion-free watermarking enables reliable attribution of machine-generated text while preserving output distribution. However, existing methods operate independently on each ge…

cs.LG2026

Hidden in Plain Tokens: Simply Robust, Gradient-Free Watermark for Synthetic Audio

Georgios Milis, Yubin Qin, Yihan Wu +1

As policy catches up with the capabilities of generative AI, watermarking is central to content provenance efforts. Inference-time watermarks for autoregressive models are unfit fo…

cs.SD2026

EnvTriCascade: An Environment-Aware Tri-Stage Cascaded Framework for ESDD2 2026 Challenge

Hengyan Huang, Xiaoxuan Guo, Jiayi Zhou +5

ADD in real-world scenarios has evolved from speech-only spoofing to more challenging component-level settings, where speech and environmental sounds may be independently manipulat…

cs.CV2026

Compositional Adversarial Training for Robust Visual Watermarking

Anirudh Satheesh, Michael-Andrei Panaitescu-Liess, Andrew Xu +4

Robust watermarking is typically trained with random post-processing augmentation, but random sampling under-covers the combinatorial space of realistic attack pipelines and rarely…

cs.CV2026

Unsafe by Reciprocity: How Generation-Understanding Coupling Undermines Safety in Unified Multimodal Models

Kaishen Wang, Heng Huang

Recent advances in Large Language Models (LLMs) and Text-to-Image (T2I) models have led to the emergence of Unified Multimodal Models (UMMs), where multimodal understanding and ima…

cs.CR2026

MCMark: Distortion-Free Multi-Bit Watermarking for Long Messages

Xuehao Cui, Ruibo Chen, Yihan Wu +1

Large language models now produce text indistinguishable from human writing, which increases the need for reliable provenance tracing. Multi-bit watermarking can embed identifiers…

cs.CR2026

More Haste, Less Speed: Weaker Single-Layer Watermark Improves Distortion-Free Watermark Ensembles

Ruibo Chen, Yihan Wu, Xuehao Cui +2

Watermarking has emerged as a crucial technique for detecting and attributing content generated by large language models. While recent advancements have utilized watermark ensemble…

cs.CV2025

Multi-Crit: Benchmarking Multimodal Judges on Pluralistic Criteria-Following

Tianyi Xiong, Yi Ge, Ming Li +13

Large multimodal models (LMMs) are increasingly adopted as judges in multimodal evaluation systems due to their strong instruction following and consistency with human preferences.…

cs.CV2025

ImAgent: A Unified Multimodal Agent Framework for Test-Time Scalable Image Generation

Kaishen Wang, Ruibo Chen, Tong Zheng +1

Recent text-to-image (T2I) models have made remarkable progress in generating visually realistic and semantically coherent images. However, they still suffer from randomness and in…

cs.SD2025

Robust Distortion-Free Watermark for Autoregressive Audio Generation Models

Yihan Wu, Georgios Milis, Ruibo Chen +1

The rapid advancement of next-token-prediction models has led to widespread adoption across modalities, enabling the creation of realistic synthetic media. In the audio domain, whi…

cs.CL2025

POET: Preference Optimization for Enhanced Text-to-Image Generation

Ruibo Chen, Jiacheng Pan, Heng Huang +1

Recent advances in text-to-image (T2I) generation have achieved impressive results, yet existing models often struggle with simple or underspecified user prompts due to a distribut…

cs.CL2025

Leave No TRACE: Black-box Detection of Copyrighted Dataset Usage in Large Language Models via Watermarking

Jingqi Zhang, Ruibo Chen, Yingqing Yang +3

Large Language Models (LLMs) are increasingly fine-tuned on smaller, domain-specific datasets to improve downstream performance. These datasets often contain proprietary or copyrig…

cs.LG2025

Model Correlation Detection via Random Selection Probing

Ruibo Chen, Sheng Zhang, Yihan Wu +3

The growing prevalence of large language models (LLMs) and vision-language models (VLMs) has heightened the need for reliable techniques to determine whether a model has been fine-…

cs.CR2025

Analyzing and Evaluating Unbiased Language Model Watermark

Yihan Wu, Xuehao Cui, Ruibo Chen +1

Verifying the authenticity of AI-generated text has become increasingly important with the rapid advancement of large language models, and unbiased watermarking has emerged as a pr…

cs.CR2025

An Ensemble Framework for Unbiased Language Model Watermarking

Yihan Wu, Ruibo Chen, Georgios Milis +1

As large language models become increasingly capable and widely deployed, verifying the provenance of machine-generated content is critical to ensuring trust, safety, and accountab…