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arXiv 2012.03405cs.LGcs.AIcs.NE
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学习生成模型的神经编码框架

The Neural Coding Framework for Learning Generative Models

Rochester Institute of Technology(罗切斯特理工学院);The Pennsylvania State University(宾夕法尼亚州立大学)

Alexander Ororbia, Daniel Kifer

摘要:

神经生成模型可用于从数据中学习复杂的概率分布,从中采样,并产生概率密度估计。我们提出了一个计算框架,用于开发神经生成模型的灵感来自大脑中的预测处理理论。根据预测处理理论,大脑中的神经元形成了一个层次结构,其中一个级别的神经元对来自另一个级别的感官输入形成预期。这些神经元根据它们的期望值和观察到的信号之间的差异来更新它们的局部模型。以类似的方式,我们的生成模型中的人工神经元预测相邻神经元将做什么,并根据预测与现实的匹配程度调整它们的参数。在这项工作中,我们证明了在我们的框架中学习的神经生成模型在几个基准数据集和指标中表现良好,并且与具有类似功能的其他生成模型(例如变分自动编码器)保持竞争力或显着优于其他生成模型。

英文摘要:

Neural generative models can be used to learn complex probability distributions from data, to sample from them, and to produce probability density estimates. We propose a computational framework for developing neural generative models inspired by the theory of predictive processing in the brain. According to predictive processing theory, the neurons in the brain form a hierarchy in which neurons in one level form expectations about sensory inputs from another level. These neurons update their local models based on differences between their expectations and the observed signals. In a similar way, artificial neurons in our generative models predict what neighboring neurons will do, and adjust their parameters based on how well the predictions matched reality. In this work, we show that the neural generative models learned within our framework perform well in practice across several benchmark datasets and metrics and either remain competitive with or significantly outperform other generative models with similar functionality (such as the variational auto-encoder).

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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