Boosting Skeleton-based Zero-Shot Action Recognition with Training-Free Test-Time Adaptation

arXiv — cs.CVMonday, December 15, 2025 at 5:00:00 AM
  • The introduction of Skeleton-Cache marks a significant advancement in skeleton-based zero-shot action recognition (SZAR) by providing a training-free test-time adaptation framework. This innovative approach enhances model generalization to unseen actions during inference by reformulating the inference process as a lightweight retrieval from a non-parametric cache of structured skeleton representations.
  • This development is crucial as it allows for dynamic adaptation to new actions without requiring additional training or access to training data, thereby improving the efficiency and effectiveness of action recognition systems in real-world applications.
  • The integration of large language models (LLMs) in frameworks like Skeleton-Cache and SkeletonAgent highlights a growing trend in AI research, where semantic reasoning capabilities are leveraged to enhance model performance. This trend reflects a broader movement towards more adaptable and intelligent systems capable of understanding and processing complex human actions in diverse contexts.
— via World Pulse Now AI Editorial System

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