This letter proposes a model-free safe RL algorithm that achieves near-zero constraint violations with high rewards. Our key idea is to jointly learn a policy and a neural barrier certificate under ...

Object detection has been dominated by anchor-based detectors for several years. Recently, anchor-free detectors have become popular due to the proposal of FPN and Focal Loss. In this paper, we first ...

Letters to the Editor: July 3, 2025 LETTERS: A Free Press reader suggests moving Santa's house to Storybook Gardens, as it would fit in perfectly and stay there for the Christmas season.