no code implementations • 6 Oct 2022 • Qi Peng, Wenlin Liu, Ruoxi Qin, Libin Hou, Bin Yan, Linyuan Wang
Adversarial attacks are considered the intrinsic vulnerability of CNNs.
no code implementations • 7 Mar 2022 • Hao Shi, Qi Peng, Yiqi Zhuang
Moreover, a novel confidence weighted loss function is proposed to address the imbalance issue and it is implemented by a two-stage learning scheme. Through the two-stage learning, AFNet can focus on high-confidence samples with more valid information and extract effective representations, so as to improve the overall classification performance.
no code implementations • AAAI Workshop AdvML 2022 • Qi Peng, Ruoxi Qin, Wenlin Liu, Libin Hou, Bin Yan, Linyuan Wang
Recent advances in adversarial attacks uncover the intrinsic vulnerability of modern deep neural networks (DNNs).
no code implementations • 3 Jun 2015 • Xinhua Zhu, Fei Li, Hongchao Chen, Qi Peng
Therefore, in order to solve the problem of non-uniformity of concept density in a large taxonomic ontology, we propose a new path computing model based on the compensation of local area density of concepts, which is equal to the number of direct hyponyms of the subsumers of concepts in their shortest path.