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Yufei Cui

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#machine learning Preprint Sep 2026

DimPO: Dimensionality Reduction for Attention using Preference Optimization

The introduction of DimPO, which combines listwise preference optimization with a lightweight top-k cross-entropy term for head-fidelity, suggests that under dimensionality reduction, preserving the ordering and concentration of task-relevant attention can matter more than reproducing the full attention distribution.

Vojtěch Lanz, Yu-Fei Cui, Prasanna Parthasarathi · 0 citations
#artificial intelligence Preprint Sep 2026

ARM: Attention with Routed-Memory for Learnable Sparse Control

Attention with Routed Memory is proposed a novel KV caching structure that introduces a fully differentiable, fixed-size memory system organized as a hierarchical router that achieves superior performance and efficiency compared to fixed KV-caching approaches, while remaining efficient and scalable in terms of both mem...

Qiu-Hao Zeng, Jerry M. Huang, Peng Lu et al. · 0 citations
#artificial intelligence Preprint Sep 2026

FINSKILLOPS: A Self-Evolving Multi-Agent System for SEC Filing QA

Financial QA systems are typically improved before deployment through better retrieval, prompting, or agent coordination, leaving their reliability behavior fixed thereafter. In practice, new SEC-filing questions repeatedly expose heterogeneous errors in period, entity, evidence use, and calculation. Existing self-impr...

Yanzhang Ma, Zhenghan Tai, Han-Wei Wu et al. · 0 citations
Jul 2026

FinSAgent: Corpus-Aligned Multi-Agent RAG Framework for Evidence-Grounded SEC Filing Question Answering

FinSAgent is proposed, an evidence-grounded multi-agent framework that reframes SEC filing QA as corpus-aligned retrieval planning and corrects both ends with a single principle: inject corpus-side conditioning wherever model priors would otherwise dominate.

Jijun Chi, Zhenghan Tai, Han-Wei Wu et al. · 0 citations
Jul 2026

Stable FP4 Training via Transposition-Invariant Block Quantization

This work proposes a low-precision training framework based on 2D block FP4 quantization, which enforces transposition-invariant scaling and preserves consistency between forward and backward computations, and combines this with truncation-free scaling and stochastic rounding to control quantization error and maintain...

Mehdi Rahimifar, Amin Darabi, Mehran Taghian Jazi et al. · 2 citations

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