activity
20242026
collaborators

10 papers

cs.CV2026

HomeGuard: VLM-based Embodied Safeguard for Identifying Contextual Risk in Household Task

Xiaoya Lu, Yijin Zhou, Zeren Chen +6

Vision-Language Models (VLMs) empower embodied agents to execute complex instructions, yet they remain vulnerable to contextual safety risks where benign commands become hazardous…

cs.CV2025

ProGuard: Towards Proactive Multimodal Safeguard

Shaohan Yu, Lijun Li, Chenyang Si +2

The rapid evolution of generative models has led to a continuous emergence of multimodal safety risks, exposing the limitations of existing defense methods. To address these challe…

cs.AI2025

Geometrically-Constrained Agent for Spatial Reasoning

Zeren Chen, Xiaoya Lu, Zhijie Zheng +6

Vision Language Models (VLMs) exhibit a fundamental semantic-to-geometric gap in spatial reasoning: they excel at qualitative semantic inference but their reasoning operates within…

cs.LG2025

R-Stitch: Dynamic Trajectory Stitching for Efficient Reasoning

Zhuokun Chen, Zeren Chen, Jiahao He +4

Chain-of-thought (CoT) enhances the problem-solving ability of large language models (LLMs) but incurs substantial inference cost due to long autoregressive trajectories. Existing…

cs.SE2025

Effective LLM Code Refinement via Property-Oriented and Structurally Minimal Feedback

Lehan He, Zeren Chen, Zhe Zhang +2

LLMs excel at code generation, yet ensuring the functional correctness of their outputs remains a persistent challenge. While recent studies have applied Test-Driven Development (T…

cs.AI2025

IS-Bench: Evaluating Interactive Safety of VLM-Driven Embodied Agents in Daily Household Tasks

Xiaoya Lu, Zeren Chen, Xuhao Hu +5

Flawed planning from VLM-driven embodied agents poses significant safety hazards, hindering their deployment in real-world household tasks. However, existing static, non-interactiv…