Exploring the Limits of Weakly Supervised Pretraining
State-of-the-art visual perception models for a wide range of tasks rely on supervised pretraining. ImageNet classification is the de facto pretraining task for these models. Yet, ImageNet is now nearly ten years old and is by modern standards "small". Even so, relatively little is known about the behavior of pretraining with datasets that are multiple orders of magnitude larger. The reasons are obvious: such datasets are difficult to collect and annotate. In this paper, we present a unique study of transfer learning with large convolutional networks trained to predict hashtags on billions of social media images. Our experiments demonstrate that training for large-scale hashtag prediction leads to excellent results. We show improvements on several image classification and object detection tasks, and report the highest ImageNet-1k single-crop, top-1 accuracy to date: 85.4% (97.6% top-5). We also perform extensive experiments that provide novel empirical data on the relationship between large-scale pretraining and transfer learning performance.
PDF Abstract ECCV 2018 PDF ECCV 2018 AbstractCode
Colab
PyTorch Hub
Datasets
Introduced in the Paper:
IG-3.5B-17k
Used in the Paper:
ImageNet
MS COCO
Places
ImageNet-1K
JFT-300M
Results from the Paper
Ranked #218 on
Image Classification
on ImageNet
(using extra training data)
