Sah, S. 2025. Detection Decay in Multi-Tenant SIEM: Measuring Rule Half-Life and a Decay-Aware Content Lifecycle Model. International Journal of Artificial Intelligence, Data Science, and Machine Learning. 6, 2 (Jun. 2025), 260–267. DOI:https://doi.org/10.63282/3050-9262.IJAIDSML-V6I2P130.