Dynamic Content Moderation in Livestreams: Combining Supervised Classification with MLLM-Boosted Similarity Matching. - Wei Chee Yew; Hailun Xu; Sanjay Saha; Xiaotian Fan; Hiok Hian Ong; David Yuchen Wang; Kanchan Sarkar; Zhenheng Yang; Danhui Guan (KDD (1), 2026)