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arXiv · 2507.21023

On Using the Shapley Value for Anomaly Localization: A Statistical Investigation

Xubin Fang·Rick S. Blum·Franziska Freytag
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Abstract

Recent publications have suggested using the Shapley value for anomaly localization for sensor data systems. Using a reasonable mathematical anomaly model for full control, experiments indicate that using a single fixed term in the Shapley value calculation achieves a lower complexity anomaly localization test, with the same probability of error, as a test using the Shapley value for all cases tested. A proof demonstrates these conclusions must be true for all independent observation cases. For dependent observation cases, no proof is available.

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Xubin Fang, Rick S. Blum, Franziska Freytag. 2025-07-28. On Using the Shapley Value for Anomaly Localization: A Statistical Investigation. https://doi.org/10.1002/ail2.70024

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