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Depthwise Separable Convolutions for Neural Machine Translation

ICLR 2018 · Architectures and efficiency › CNN design · approach: Efficient CNN scaling and dynamic inference · 242 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
replace regular convolutions with depthwise separable convolutions (ablation)ByteNet-like model · WMT EN-DE newstest2013Accuracy: 62.41 -> 63.87Helped
replace regular convolutions with depthwise separable convolutions (ablation)ByteNet-like model · WMT EN-DE newstest2013Parameters (Non-Emb.): 314 M (230 M) -> 196 M (112 M)Helped
reduce dilation and increase filter sizes to 3-7-7-7 (ablation)Full-separability ByteNet-like model · WMT EN-DE newstest2013Accuracy: 63.87 -> 64.37Helped
use larger filters 3-7-15-31 and remove dilation (ablation)Full-separability ByteNet-like model · WMT EN-DE newstest2013Accuracy: 63.87 -> 64.36Helped
replace full depthwise separability with grouped convolutions using 16 groups (ablation)ByteNet-like model · WMT EN-DE newstest2013Accuracy: 63.87 -> 63.46Hurt
replace full depthwise separability with super-separable convolutions alternating 2 and 3 groups (ablation)ByteNet-like model · WMT EN-DE newstest2013Accuracy: 64.36 -> 64.71Helped
use super-separable convolutions instead of full separability at higher feature depth (ablation)SliceNet · WMT EN-DE newstest2013Accuracy: 66.71 -> 67.27Helped
use a large SliceNet with super-separable convolutions (ablation)SliceNet · WMT EN-DE newstest2014BLEU: 25.5 -> 26.1Helped

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