no code implementations • 3 Feb 2024 • Long Ma, Jiajia Zhang, Hongping Deng, Ningyu Zhang, Qinglang Guo, Haiyang Yu, Yong Liao, Pengyuan Zhou
The escalating quality of video generated by advanced video generation methods results in new security challenges, while there have been few relevant research efforts: 1) There is no open-source dataset for generated video detection, 2) No generated video detection method has been proposed so far.
no code implementations • 18 Oct 2023 • Anja Zgodic, Ray Bai, Jiajia Zhang, Peter Olejua, Alexander C. McLain
We use empirical Bayes estimators of hyperparameters for increased flexibility and an Expectation-Conditional-Minimization (ECM) algorithm for computationally efficient maximum a posteriori probability (MAP) estimation of parameters.
1 code implementation • 15 Sep 2023 • Anja Zgodic, Ray Bai, Jiajia Zhang, YuAn Wang, Chris Rorden, Alexander McLain
Bayesian heteroscedastic linear regression models relax the homoscedastic error assumption but can enforce restrictive prior assumptions on parameters, and many are computationally infeasible in the high-dimensional setting.
no code implementations • 16 Mar 2023 • Shuhan Qi, Shuhao Zhang, Qiang Wang, Jiajia Zhang, Jing Xiao, Xuan Wang
In this paper, we propose a scalable value-decomposition exploration (SVDE) method, which includes a scalable training mechanism, intrinsic reward design, and explorative experience replay.
Multi-agent Reinforcement Learning reinforcement-learning +3
no code implementations • 11 May 2022 • Shuhan Qi, Shuhao Zhang, Xiaohan Hou, Jiajia Zhang, Xuan Wang, Jing Xiao
However, due to the slow sample collection and poor sample exploration, there are still some problems in multi-agent reinforcement learning, such as unstable model iteration and low training efficiency.
no code implementations • 26 May 2021 • Huale Li, Xuan Wang, Zengyue Guo, Jiajia Zhang, Shuhan Qi
Towards this problem, a recent method, \textit{Deep CFR} alleviates the need for abstraction and expert knowledge by applying deep neural networks directly to CFR in full games.
1 code implementation • 29 Mar 2021 • Dingwen Zhang, Bo wang, Gerong Wang, Qiang Zhang, Jiajia Zhang, Jungong Han, Zheng You
Onfocus detection aims at identifying whether the focus of the individual captured by a camera is on the camera or not.
no code implementations • 10 Sep 2020 • Huale Li, Xuan Wang, Fengwei Jia, Yi-Fan Li, Yulin Wu, Jiajia Zhang, Shuhan Qi
Extensive experimental results on various games have shown that the generalization ability of our method is significantly improved compared with existing state-of-the-art methods.