collaborators

8 papers

cs.CL2026

GeoSVG-RL: Geometry-Aware Reinforcement Learning for Layout-Constrained Text-to-SVG Diagram Generation

Sifan Li, Yujun Cai, Hongkai Chen +1

Generating structured, editable diagrams remains a significant challenge for contemporary large language models, despite their proficiency in general-purpose vector code generation…

cs.SD2026

AudioRouter: Data Efficient Audio Understanding via RL based Dual Reasoning

Liyang Chen, Hongkai Chen, Yujun Cai +3

Large Audio Language Models (LALMs) have demonstrated strong capabilities in audio understanding and reasoning. However, their performance on fine grained auditory perception remai…

cs.CL2026

OptiSQL: Executable SQL Generation from Optical Tokens

Sifan Li, Hongkai Chen, Yujun Cai +3

Executable SQL generation is typically studied in text-to-SQL settings, where tables are provided as fully linearized textual schemas and contents. While effective, this formulatio…

cs.SD2025

Detecting and Mitigating Insertion Hallucination in Video-to-Audio Generation

Liyang Chen, Hongkai Chen, Yujun Cai +3

Video-to-Audio generation has made remarkable strides in automatically synthesizing sound for video. However, existing evaluation metrics, which focus on semantic and temporal alig…

cs.CL2025

SemVink: Advancing VLMs' Semantic Understanding of Optical Illusions via Visual Global Thinking

Sifan Li, Yujun Cai, Yiwei Wang

Vision-language models (VLMs) excel in semantic tasks but falter at a core human capability: detecting hidden content in optical illusions or AI-generated images through perceptual…

cs.CV2025

Vision Language Models Map Logos to Text via Semantic Entanglement in the Visual Projector

Sifan Li, Hongkai Chen, Yujun Cai +4

Vision Language Models (VLMs) have achieved impressive progress in multimodal reasoning; yet, they remain vulnerable to hallucinations, where outputs are not grounded in visual evi…