Stochastic Neural Variational Learning of Noisy-OR Bayesian Networks for Images
Stochastic Neural Variational Learning of Noisy-OR Bayesian Networks for Images
复制标题
图像的噪声或贝叶斯网络的随机神经变分学习
DOI:
10.1145/3505711.3505721
复制
发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Ichisugi Yuuji
中科院分区:
文献类型:
--
作者:
Sano Takashi;Ichisugi Yuuji
Bayesian networks are not only useful as causal probabilistic models but also promising as models of the cerebral cortex. This paper addresses the problem of unsupervised learning in Bayesian networks with noisy-OR conditional probability tables. We employ neural variational inference and learning (NVIL), in which intractable posterior distribution is approximated by the output of a neural network. Both the noisy-OR Bayesian network and the posterior distribution neural network are optimized to maximize the variational lower bound of the true log-likelihood. To examine the effectiveness of the proposed method, we used the MNIST handwritten digit dataset for unsupervised learning of noisy-OR Bayesian networks. We confirmed that noisy-OR Bayesian networks with up to 128 latent variables can learn the given dataset using NVIL. Interestingly, the latent variables of the noisy-OR Bayesian networks learned fragments of digit images as their representation. These representations are easier to interpret than the representations acquired by sigmoid belief networks.
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DOI:
--
发表时间:
2023
期刊:
影响因子:
--
作者:
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DOI:
10.1364/josaa.20.001434
发表时间:
2003-07-01
影响因子:
1.9
作者:
Lee, TS;Mumford, D
通讯作者:
Mumford, D
DOI:
--
发表时间:
2017
期刊:
Workshop on Advanced Methodologies for Bayesian Networks
影响因子:
--
作者:
N. Takahashi;Yuuji Ichisugi
通讯作者:
Yuuji Ichisugi
DOI:
10.1109/ijcnn.2007.4370951
发表时间:
2007
期刊:
2007 International Joint Conference on Neural Networks
影响因子:
--
作者:
Yuuji Ichisugi
通讯作者:
Yuuji Ichisugi
DOI:
--
发表时间:
2019
期刊:
--
影响因子:
--
作者:
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通讯作者:
Geng Ji;Dehua Cheng;Huazhong Ning;Changhe Yuan;Hanning Zhou;Liang Xiong;Erik B. Sudderth