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Embedded-model flows: Combining the inductive biases of model-free deep learning and explicit probabilistic modeling

ICLR 2022 · Probabilistic and scientific modeling › Variational and generative sampling · approach: Normalizing flow training and design · 1 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Add a Gaussian-mixture structured layer to MAFMAF · 8G, CKB, MNISTnegative log probabilityHelped
Add a Gaussian-mixture structured layer to NSFNSF · 8G, CKB, MNISTnegative log probabilityHelped
Add gated continuity structureMAF · BR, OU, LZ, VDPnegative log probabilityHelped
Add gated prior embedding to the variational flowIAF · Structured variational inference problemsnegative ELBOHelped
Use a Gaussian hierarchical structured layerMAF · IRIS and DIGITSnegative log probabilityHelped
Use the more flexible MAF-L rather than the simple hierarchical EMFHierarchical generative models · IRIS and DIGITSnegative log probabilityHelped
Place the mixture structured layer at the top rather than in the middleEMF with MAF · 8G and CKBnegative log probabilityMixed
Combine NSF with the mixture layer rather than use NSF aloneNSF · 8Gnegative log probability: 2.832 ± 0.004 -> 2.829 ± 0.006Helped
Combine NSF with the mixture layer rather than use NSF aloneNSF · CKBnegative log probability: 3.481 ± 0.002 -> 3.480 ± 0.001No clear effect
Combine NSF with the mixture layer rather than use NSF aloneNSF · MNISTnegative log probability: 969.393 ± 0.838 -> 958.960 ± 0.695Helped
Use gated continuity structure rather than smoothness structureGEMF-T · BR, OU, LZ, VDPnegative log probabilityMixed
Use a gated prior-embedding flow rather than IAFVariational inference · BRS-c, BRB-c, LZS-c, LZB-c, VDPS-c, VDPB-c, ES, Lin-8, Tanh-8negative ELBOHelped

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