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arXiv 2112.08069cs.LGstat.ML
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漏斗:降维的精确最大似然

Funnels: Exact maximum likelihood with dimensionality reduction

University of Geneva(日内瓦大学)

Samuel Klein, John A. Raine, Sebastian Pina-Otey, Slava Voloshynovskiy, Tobias Golling

摘要:

规范化流是使用模型的似然性训练的同构(通常是维保持)模型。我们使用SurVAE框架通过一个新的层(称为漏斗)来构建降维满射流。我们在各种数据集上证明了它的有效性,并表明它在降低潜在空间大小的同时提高或匹配现有流的性能。漏斗层可以从各种各样的转换中构建,包括限制卷积和前馈层。

英文摘要:

Normalizing flows are diffeomorphic, typically dimension-preserving, models trained using the likelihood of the model. We use the SurVAE framework to construct dimension reducing surjective flows via a new layer, known as the funnel. We demonstrate its efficacy on a variety of datasets, and show it improves upon or matches the performance of existing flows while having a reduced latent space size. The funnel layer can be constructed from a wide range of transformations including restricted convolution and feed forward layers.

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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