5 papers
Trusting Imagined Futures: Auditing Imagined Rewards for VLA Post-Training
Zicheng Kong, Zhenbo Xu, Haoyan Zhang +7
Video world models enable candidate actions to be evaluated through imagined outcomes, but high predicted rewards can favor trajectories with poor execution quality. We introduce T…
Local sensing of gas microflows using a levitated nanoparticle
Maxime Debiossac, David Grass, Daniel R. Ladiges +3
Local measurements of gas flow in microscale geometries remain challenging due to the difficulty of micromechanical sensors implantation. Here, we use a levitated nanoparticle as a…
SafeRelBench: A Spatial-Relation-Aware Benchmark for Process-Level Safety in VLM-Driven Embodied Agents
Huaigang Yang, Ya Li, Min Ren +3
Vision-language models (VLMs) are increasingly used as the reasoning backbone of embodied agents, enabling robots to interpret visual scenes, follow language instructions, and plan…
OmniPlay: Benchmarking Omni-Modal Models on Omni-Modal Game Playing
Fuqing Bie, Shiyu Huang, Xijia Tao +6
While generalist foundation models like Gemini and GPT-4o demonstrate impressive multi-modal competence, existing evaluations fail to test their intelligence in dynamic, interactiv…
Beyond Face Swapping: A Diffusion-Based Digital Human Benchmark for Multimodal Deepfake Detection
Jiaxin Liu, Jia Wang, Saihui Hou +5
In recent years, the explosive advancement of deepfake technology has posed a critical and escalating threat to public security: diffusion-based digital human generation. Unlike tr…