Anomaly Detection Requires Better Representations

19 Oct 2022  ·  Tal Reiss, Niv Cohen, Eliahu Horwitz, Ron Abutbul, Yedid Hoshen ·

Anomaly detection seeks to identify unusual phenomena, a central task in science and industry. The task is inherently unsupervised as anomalies are unexpected and unknown during training. Recent advances in self-supervised representation learning have directly driven improvements in anomaly detection. In this position paper, we first explain how self-supervised representations can be easily used to achieve state-of-the-art performance in commonly reported anomaly detection benchmarks. We then argue that tackling the next generation of anomaly detection tasks requires new technical and conceptual improvements in representation learning.

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Results from the Paper


Task Dataset Model Metric Name Metric Value Global Rank Result Benchmark
Anomaly Detection ODDS kNN AUROC 0.902 # 1
F1 0.699 # 1
Anomaly Detection ODDS ICL AUROC 0.889 # 2
F1 0.681 # 2
Anomaly Detection ODDS GOAD AUROC 0.782 # 3
F1 0.544 # 3
Anomaly Detection One-class CIFAR-10 DINO-FT AUROC 98.4 # 6

Methods


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