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Kun Yuan

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#machine learning Preprint Sep 2026

SOLAR: A State-Driven Online Learning Rate Scheduler for LLM Pretraining

Across autoregressive language-model pretraining, SOLAR improves final perplexity over tuned static schedules and automatic LR tuners for dense models from 60M to 1B, AdamW and Muon, and two MoE settings up to 3B.

Qiu-Lin Shang, Bin-Yu Wang, Yong-Qi Qiao et al. · 0 citations
Preprint Sep 2026

SparkDiffusion: Mitigating the High-Sparsity Trap --- A Unified Framework for up to $265\times$ Single-GPU Acceleration of Visual Generation

This work identifies the high-sparsity trap, a unified acceleration framework for visual generation that combines a short sparse warm-up, few-step trajectory-mixed distillation, and FP8 quantization with fused kernels, and sustains attention sparsity with strong visual quality on long-sequence 720P generation across Wa...

Yu-Xi Liu, Hao-Yu Li, Ze-Kun Zhang et al. · 0 citations
Preprint Sep 2026

RoLA: Rotary-Positioned Low-Rank Linear Attention for Efficient Diffusion Transformers

Diffusion Transformers (DiTs) achieve strong video generation quality, but their dense spatiotemporal self-attention scales quadratically with sequence length and quickly becomes the dominant inference bottleneck. Sparse low-rank hybrids alleviate this cost by combining a local sparse branch with a global compressed br...

Ze-Kun Zhang, Yi-Xiang Cai, Yu-Xi Liu et al. · 1 citation

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