no code implementations • 14 Feb 2023 • Qingzhong Ai, Pengyun Wang, Lirong He, Liangjian Wen, Lujia Pan, Zenglin Xu
Learning with imbalanced data is a challenging problem in deep learning.
1 code implementation • NeurIPS 2021 • Qingzhong Ai, Lirong He, Shiyu Liu, Zenglin Xu
To address this issue, we propose Bayesian Pseudocoresets Exemplar VAE (ByPE-VAE), a new variant of VAE with a prior based on Bayesian pseudocoreset.
no code implementations • 20 Jul 2021 • Qingzhong Ai, Shiyu Liu, Lirong He, Zenglin Xu
In practice, we notice that the kernel used in SVGD-based methods has a decisive effect on the empirical performance.
1 code implementation • ICLR 2020 • Liangjian Wen, Yiji Zhou, Lirong He, Mingyuan Zhou, Zenglin Xu
To this end, we propose the Mutual Information Gradient Estimator (MIGE) for representation learning based on the score estimation of implicit distributions.
no code implementations • 20 Nov 2019 • Lirong He, Ziyi Guo, Kai-Zhu Huang, Zenglin Xu
In a worst-case scenario, MPM tries to minimize an upper bound of misclassification probabilities, considering the global information (i. e., mean and covariance information of each class).
no code implementations • 24 May 2017 • Hao Liu, Haoli Bai, Lirong He, Zenglin Xu
Inheriting these advantages of stochastic neural sequential models, we propose a structured and stochastic sequential neural network, which models both the long-term dependencies via recurrent neural networks and the uncertainty in the segmentation and labels via discrete random variables.