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cs.IR2026
DMAP: Human-Aligned Structural Document Map for Multimodal Document Understanding
ShunLiang Fu, Yanxin Zhang, Yixin Xiang +2
Existing multimodal document question-answering (QA) systems predominantly rely on flat semantic retrieval, representing documents as a set of disconnected text chunks and largely…
cs.IR2024
Precision Profile Pollution Attack on Sequential Recommenders via Influence Function
Xiaoyu Du, Yingying Chen, Yang Zhang +1
Sequential recommendation approaches have demonstrated remarkable proficiency in modeling user preferences. Nevertheless, they are susceptible to profile pollution attacks (PPA), w…