From Xception to NEXcepTion: New Design Decisions and Neural Architecture Search

16 Dec 2022  ·  Hadar Shavit, Filip Jatelnicki, Pol Mor-Puigventós, Wojtek Kowalczyk ·

In this paper, we present a modified Xception architecture, the NEXcepTion network. Our network has significantly better performance than the original Xception, achieving top-1 accuracy of 81.5% on the ImageNet validation dataset (an improvement of 2.5%) as well as a 28% higher throughput. Another variant of our model, NEXcepTion-TP, reaches 81.8% top-1 accuracy, similar to ConvNeXt (82.1%), while having a 27% higher throughput. Our model is the result of applying improved training procedures and new design decisions combined with an application of Neural Architecture Search (NAS) on a smaller dataset. These findings call for revisiting older architectures and reassessing their potential when combined with the latest enhancements.

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Results from the Paper


Task Dataset Model Metric Name Metric Value Global Rank Result Benchmark
Image Classification <h2>oi</h2> NEXcepTion-S Top 1 Accuracy 82% # 531
Image Classification <h2>oi</h2> NEXcepTion-T Top 1 Accuracy 81.5% # 578
Image Classification <h2>oi</h2> NEXcepTion-TP Top 1 Accuracy 81.8% # 554

Methods