Xingshuo Han Yutong Wu 0009 Qingjie Zhang Yuan Zhou 0005 Yuan Xu 0033 Han Qiu 0001 Guowen Xu Tianwei Zhang 0004 Backdooring Multimodal Learning. 3385-3403 2024 SP https://doi.org/10.1109/SP54263.2024.00031 conf/sp/2024 db/conf/sp/sp2024.html#HanWZZXQXZ24 streams/conf/sp