Yang, Yiran, Zhaowei Liu, Yuan Yuan, Yukun Song, Xiong Ma, Yinghao Song, Xiangji Zeng, et al. 2026. “BLM-Guard: Explainable Multimodal Ad Moderation With Chain-of-Thought and Policy-Aligned Rewards”. Proceedings of the AAAI Conference on Artificial Intelligence 40 (42):35985-93. https://doi.org/10.1609/aaai.v40i42.40914.