Search Results for author: Lirong He

Found 6 papers, 2 papers with code

ByPE-VAE: Bayesian Pseudocoresets Exemplar VAE

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.

Data Augmentation Density Estimation +2

Stein Variational Gradient Descent with Multiple Kernel

no code implementations20 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.

Computational Efficiency

Mutual Information Gradient Estimation for Representation Learning

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.

Representation Learning

Deep Minimax Probability Machine

no code implementations20 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).

Stochastic Sequential Neural Networks with Structured Inference

no code implementations24 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.

Medical Diagnosis Segmentation +2

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