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Summary of Reconstruction-based Anomaly Localization Via Knowledge-informed Self-training, by Cheng Qian et al.


Reconstruction-Based Anomaly Localization via Knowledge-Informed Self-Training

by Cheng Qian, Xiaoxian Lao, Chunguang Li

First submitted to arxiv on: 22 Feb 2024

Categories

  • Main: Machine Learning (cs.LG)
  • Secondary: Computer Vision and Pattern Recognition (cs.CV)

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Summary difficulty Written by Summary
High Paper authors High Difficulty Summary
Read the original abstract here
Medium GrooveSquid.com (original content) Medium Difficulty Summary
The proposed Knowledge-Informed Self-Training (KIST) method integrates domain expert knowledge into a reconstruction model for improved anomaly localization in images. By utilizing weakly labeled anomalous samples, KIST generates pixel-level pseudo-labels and incorporates them into a novel loss function that promotes normal pixel reconstruction while suppressing anomalous pixels. This approach outperforms existing reconstruction-based methods on various datasets.
Low GrooveSquid.com (original content) Low Difficulty Summary
KIST is a new way to find unusual things in pictures using information from experts. It takes weakly labeled abnormal samples and uses this knowledge to create fake labels for each pixel. Then, it uses these fake labels to make the model better at finding normal pixels while ignoring abnormal ones. This helps improve image anomaly localization.

Keywords

* Artificial intelligence  * Loss function  * Self training