arXiv Machine Learning By Tianqi Chen, Zhe Li, Weixiang Xu, Zeyu Zhu, Dong Li, Lu Tian, Emad Barsoum, Peisong Wang, Jian Cheng

TernaryLLM: Ternarized Large Language Model

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TernaryLLM introduces Dual Learnable Ternarization (DLT) to allow both scales and shifts to be learned, addressing asymmetric outliers and non‑zero means in weights. It also proposes Outlier‑Friendly Feature Knowledge Distillation (OFF), which maximizes mutual information between ternarized and floating‑point features using cosine similarity to recover lost information. Experiments show TernaryLLM outperforms prior low‑bit quantization methods on text generation and zero‑shot benchmarks, notably improving LLaMA‑3’s perplexity and accuracy.

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arXiv Machine Learning
10h ago

InfoQuant: Shaping Activation Distributions for Low-Bit LLM Quantization

InfoQuant is a train‑free method that reshapes activation distributions to be more compatible with low‑bit quantizers. It uses Peak Suppression Orthogonal Transformation (PSOT) and adaptive outlier‑token selection to reduce numerical range while maintaining dispersion, thereby lowering quantization error. Across several large language model families, InfoQuant outperforms existing post‑training quantization and end‑to‑end training baselines, preserving 97% of floating‑point accuracy on average and narrowing the LLaMA‑2 13B performance gap by 42%.

By Ke Li, Dong An, Xiaoling Zang, Can Ye, Liang Xie, Qibo Qiu, Chen Shen, Xiaofei He, Wenxiao Wang