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Xun-Liang Cai

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#machine learning Preprint Oct 2026

CAST: History-Adaptive Spectral Clipping for LLM Pretraining

This work introduces CAST (Clipping with Adaptive Scales and Thresholds), a history-adaptive extension of SSC that achieves lower training and mean validation losses than nine gradient-processing baselines, with the fewest relative gradient spikes.

Jia-Cheng Li, Jian-Chao Tan, Ke-Feng Zhang et al. · 0 citations
#machine learning Preprint Sep 2026

QuantMLA: Function-Aligned Dual-Path Quantization for Low-Bit MLA KV Caching

Multi-Head Latent Attention (MLA) enables expressive multi-head attention with compact caches for its content and decoupled RoPE paths, yet cache memory still scales linearly with context length and batch size. In this work, we establish a systematic model of MLA's dual-path quantization errors, characterizing their di...

Zun-Hai Su, Yuxuan Sun, Jian-Chao Tan et al. · 0 citations
#artificial intelligence Preprint Sep 2026

What Matters in On-Policy Distillation? A Perspective on Data Efficiency and Data Selection

This paper presents an empirical study of data efficiency and data selection in OPD, and proposes a simple data selection method that selects only hard examples for training, where even"unsolvable"examples that completely exceed the teacher's capability can be successfully used.

Zhi-Nan Hou, Jiaqi Zhang, Xun-Liang Cai et al. · 6 citations
#artificial intelligence Preprint Aug 2026

DASC: Decay-Aware State Compression for Hybrid Linear-Attention Serving

Decay-Aware State Compression (DASC), which derives retention horizons from model weights, selects long-horizon state units, and packs them into a ragged state checkpoint layout to integrate efficiently with tensor-parallel inference engines.

Yanzhi Yu, Ping-Wei Sun, Jian-Chao Tan et al. · 2 citations
#small language model Preprint Aug 2026

DAMP: Decay-Aware Mixed-Precision Recurrent-State Quantization

DAMP uses both quantization-error energy and decay-based persistence to identify high-risk channels during offline calibration and stores these channels at higher precision and the remainder in INT8, the first to study post-training quantization of recurrent states in GDN and KDA based language models.

Tao Zhang, Jian-Chao Tan, Ping-Wei Sun et al. · 6 citations · ⚡3

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