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MLP-Mixer: An all-MLP Architecture for Vision

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arxiv 2105.01601 v4 pith:6JLWYSIT submitted 2021-05-04 cs.CV cs.AIcs.LG

MLP-Mixer: An all-MLP Architecture for Vision

classification cs.CV cs.AIcs.LG
keywords mlp-mixermlpsvisionappliedarchitecturecnnsimagemixing
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Convolutional Neural Networks (CNNs) are the go-to model for computer vision. Recently, attention-based networks, such as the Vision Transformer, have also become popular. In this paper we show that while convolutions and attention are both sufficient for good performance, neither of them are necessary. We present MLP-Mixer, an architecture based exclusively on multi-layer perceptrons (MLPs). MLP-Mixer contains two types of layers: one with MLPs applied independently to image patches (i.e. "mixing" the per-location features), and one with MLPs applied across patches (i.e. "mixing" spatial information). When trained on large datasets, or with modern regularization schemes, MLP-Mixer attains competitive scores on image classification benchmarks, with pre-training and inference cost comparable to state-of-the-art models. We hope that these results spark further research beyond the realms of well established CNNs and Transformers.

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