Search Results for author: Xuewen Liu

Found 2 papers, 1 papers with code

RepQuant: Towards Accurate Post-Training Quantization of Large Transformer Models via Scale Reparameterization

no code implementations8 Feb 2024 Zhikai Li, Xuewen Liu, Jing Zhang, Qingyi Gu

In particular, for the former, we introduce a learnable per-channel dual clipping scheme, which is designed to efficiently identify outliers in the unbalanced activations with fine granularity.

Quantization

Enhanced Distribution Alignment for Post-Training Quantization of Diffusion Models

1 code implementation9 Jan 2024 Xuewen Liu, Zhikai Li, Junrui Xiao, Qingyi Gu

Specifically, at the calibration sample level, we select calibration samples based on the density and diversity in the latent space, thus facilitating the alignment of their distribution with the overall samples; and at the reconstruction output level, we propose Fine-grained Block Reconstruction, which can align the outputs of the quantized model and the full-precision model at different network granularity.

Denoising Image Generation +2

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