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Xi-Peng Qiu

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#machine learning Preprint Sep 2026

Analytic-Walk Rotary Positional Encodings for Graphs

Rotary position encodings make attention sensitive to relative position, but extending them to graphs requires choosing how graph structure enters the rotation. Previous works assign each node a rotation from spectral coordinates, so the rotary factor between two nodes depends only on their endpoints and cannot disting...

Jia-Qing Xie, Yu-Xin Wang, Xi-Peng Qiu · 0 citations
#artificial intelligence Open access Sep 2026

SPIDER: Multi-Layer Semantic Token Pruning and Adaptive Sub-Layer Skipping in Multimodal Large Language Models.

Multimodal Large Language Models face significant efficiency challenges that stem from two distinct yet coupled sources: data redundancy and computational redundancy. While most methods focus on data redundancy by pruning visual tokens from the output of the visual encoder or computing redundancy in LLM decoders using...

Tian-Xiang Chen, Zhentao Tan, Zi Ye et al. · 0 citations

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