https://www.yruichen.net/blog/ Recent content in Blog on Yingrui Chen Hugo en Wed, 29 Jul 2026 00:00:00 +0000 https://www.yruichen.net/blog/greater-bay-area-summer-camp/ Sun, 19 Jul 2026 00:00:00 +0000 https://www.yruichen.net/blog/greater-bay-area-summer-camp/ Universities, city streets, factory floors, a final roadshow—and the people who made the journey matter. https://www.yruichen.net/blog/marketing-hub-teamone-gold/ Thu, 09 Jul 2026 00:00:00 +0000 https://www.yruichen.net/blog/marketing-hub-teamone-gold/ Our three-person team won the Gold Award at the Guangzhou TeamOne AI Technology Challenge for Marketing Hub, with a RMB 50,000 prize. https://www.yruichen.net/blog/xioptics-rocket-3d-reconstruction-delivery/ Wed, 08 Jul 2026 00:00:00 +0000 https://www.yruichen.net/blog/xioptics-rocket-3d-reconstruction-delivery/ I completed the on-site delivery of the Rocket 3D Reconstruction System at the Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences. https://www.yruichen.net/blog/dp_learn/ Tue, 08 Jul 2025 00:00:00 +0000 https://www.yruichen.net/blog/dp_learn/ 系统梳理差分隐私的定义、隐私预算、敏感度、拉普拉斯机制、高斯机制、指数机制与 DP-SGD，并给出 PyTorch/Opacus 实践建议和常见调参清单。 https://www.yruichen.net/blog/affine_geometry/ Fri, 08 Mar 2024 00:00:00 +0000 https://www.yruichen.net/blog/affine_geometry/ 从坐标表示、线性方程组和矩阵出发，系统解释仿射变换的定义、几何不变量、直线与面积的变换规律，并用椭圆和图形编程示例说明它为什么实用。