Xi Xiao

TempFinRAG: Multimodal Temporal Retrieval-Augmented Generation for Point-in-Time Financial Question Answering

Lanju Tao, Zhengji Li, Yuqi Ji, Chih-Ting Liao et autres

Financial question answering is often treated as document question answering, although financial evidence is both multimodal and time-dependent. Semantically equivalent facts expressed in narrative text, tables, page images, or Extensible Business Reporting Language (XBRL) should support consistent answers, whereas a disclosure may …

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Not All Directions Matter: Towards Structured and Task-Aware Low-Rank Model Adaptation

Association for Computational Linguistics 2026, Guosheng Hu, Yanshu Li, Chen Liu et autres

Low-Rank Adaptation (LoRA) has become a cornerstone of parameter-efficient fine-tuning (PEFT). Yet, its efficacy is hampered by two fundamental limitations: $\textit{semantic drift}$, arising from treating all update directions with equal importance, and $\textit{structural incoherence}$, due to adapting layers independently, resulting in uncoordinated …

us (code pays fourni par la source)

Not All Directions Matter: Towards Structured and Task-Aware Low-Rank Model Adaptation

Xi Xiao, Chenrui Ma, Yunbei Zhang, Chen Liu (75209) et autres

Low-Rank Adaptation (LoRA) has become a cornerstone of parameter-efficient fine-tuning (PEFT). Yet, its efficacy is hampered by two fundamental limitations: semantic drift, by treating all update directions with equal importance, and structural incoherence, from adapting layers independently, resulting in suboptimal, uncoordinated updates. …

us, gb (code pays fourni par la source)

Information-theoretic graph fusion with vision-language-action model for policy reasoning and dual robotic control

Shunlei Li, Longsen Gao, Jin Wang, Chang Che et autres

cn, us, it (code pays fourni par la source)

Not All Directions Matter: Towards Structured and Task-Aware Low-Rank Model Adaptation

Xi Xiao, Chenrui Ma, Yunbei Zhang, Chen Liu et autres

Xi Xiao, Chenrui Ma, Yunbei Zhang, Chen Liu, Zhuxuanzi Wang, Yanshu Li, Lin Zhao, Guosheng Hu, Tianyang Wang, Hao Xu. Proceedings of the 64th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers). 2026.

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