SpecQuant uses outlier smoothing into weights followed by channel-wise low-frequency Fourier truncation to achieve 4-bit quantization of LLaMA-3 8B with only 1.5% zero-shot accuracy loss versus full precision.
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SpecQuant: Spectral Decomposition and Adaptive Truncation for Ultra-Low-Bit LLMs Quantization
SpecQuant uses outlier smoothing into weights followed by channel-wise low-frequency Fourier truncation to achieve 4-bit quantization of LLaMA-3 8B with only 1.5% zero-shot accuracy loss versus full precision.