1 code implementation • CVPR 2024 • Yunlong Zhao, Xiaoheng Deng, Yijing Liu, Xinjun Pei, Jiazhi Xia, Wei Chen
With the basic idea of imitating the victim model's low-variance patch-level gradients instead of pixel-level gradients, SPSG achieves efficient sample gradient estimation through two steps.
no code implementations • 9 Jun 2022 • Weikai Yang, Xi Ye, Xingxing Zhang, Lanxi Xiao, Jiazhi Xia, Zhongyuan Wang, Jun Zhu, Hanspeter Pfister, Shixia Liu
The base learners and labeled samples (shots) in an ensemble few-shot classifier greatly affect the model performance.
no code implementations • 30 Jul 2020 • Jiazhi Xia, Tianxiang Chen, Lei Zhang, Wei Chen, Yang Chen, Xiaolong Zhang, Cong Xie, Tobias Schreck
We build a prototype system based on our method, SMAP, to support the organization, computation, and exploration of secure joint embedding.
no code implementations • 30 Jul 2020 • Wei Zeng, Chengqiao Lin, Juncong Lin, Jincheng Jiang, Jiazhi Xia, Cagatay Turkay, Wei Chen
Deep learning methods are being increasingly used for urban traffic prediction where spatiotemporal traffic data is aggregated into sequentially organized matrices that are then fed into convolution-based residual neural networks.
1 code implementation • 30 Oct 2018 • Yixiong Liang, Yuan Mao, Jiazhi Xia, Yao Xiang, Jianfeng Liu
Specifically, we propose a scale-invariant structure saliency selection scheme based on the difference-of-Gaussian (DoG) pyramid of images to build the weights or activity map.