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Xing Huang

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HiFloat4 Format for Language Model Pre-training on Ascend NPUs

It is argued that numerical format design is itself a first-class lever for stable FP4 training, and the first systematic study of FP4 LLM pretraining on energy-efficient Huawei Ascend NPUs is presented.

Mehran Taghian, Yun Peng, Xing Huang et al. · 3 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
Preprint Aug 2026

Activation Outliers Matter: Robust Recovery for Quantized Multimodal LLMs

This work proposes Residual Fallback Quantization (RFQ), a lightweight activation reconstruction framework that supplements the primary ulta-low-bit activation representation with an auxiliary quantized residual pathway that improves activation fidelity while preserving the efficiency advantages of ultra-low-bit comput...

Tanzila Rahman, Mehran Taghian Jazi, Yunke Peng et al. · 0 citations
2026

GNN-OSS: A Capacity-Feasible Graph Learning Framework for Secure Blockchain Sharding in IIoT

Effective scaling of blockchain-enabled Industrial Internet of Things (IIoT) requires sharding that simultaneously ensures transaction locality, strict committee-size feasibility, and robustness against malicious node concentration. Existing methods often fail to balance this trilemma, risking either infeasible deploym...

Guangxia Xu, Zhuo Ye, Lu Wang et al. · 0 citations

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