本期《TAI快报》深入探讨了五项AI前沿研究,涵盖注意力机制、奖励模型、表示学习和机器人学习,展现了AI在效率、数据利用和现实应用上的突破: Generalized Neighborhood Attention: Multi-dimensional Sparse Attention at the Speed of Light 提出广义邻域注意力 (GNA),通过“步长”参数统一局部稀疏注意力模式,显著提升图像和视频生成速度(如 HunyuanVideo 加速63%),并开源工具助力研究。 Process Reward Models That Think 推出 THINKPRM,用少量(8000条)合成数据生成验证思维链,超越传统奖励模型,助力数学、编程等任务的推理验证。 Representation Learning via Non-Contrastive Mutual Information 提出 MINC 损失,结合互信息理论和非对比式学习优势,提升自监督学习效率,适用于图像分类等任务。 Latent Diffusion Planning for Imitation Learning 提出模块化的 LDP 方法,利用次优和无动作数据,在低专家数据下提升机器人模仿学习性能,适合服务机器人等应用。 Offline Robotic World Model: Learning Robotic Policies without a Physics Simulator 提出 RWM-O 和 MOPO-PPO,基于离线真实数据实现不确定性感知的机器人策略学习,成功部署于四足机器人。完整推介:https://mp.weixin.qq.com/s/XcHDIeRCovyjon0QrUIiLw
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