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Electornic Engineering Department, Tsinghua University, Haidian District, Beijing, 100084, China
Tsinghua AI4
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Revisiting the same locations across time in Sekai2 enables the learning of persistent scene representations, a game-changer for interactive world modeling.
Forget hand-crafted KG traversal policies: GraphWalker uses automatically synthesized trajectories to train agents that achieve SOTA performance and generalize to unseen reasoning paths.
Reinforcement learning for multimodal agents doesn't have to collapse into uselessness: PyVision-RL shows how to stabilize training and encourage multi-turn tool use.
HarmoniDPO achieves superior audio-video synchronization and quality by leveraging human preferences in a novel diffusion-based framework.
