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#w4a4 News & Analysis

2 articles tagged with #w4a4. AI-curated summaries with sentiment analysis and key takeaways from 50+ sources.

2 articles
AINeutralarXiv – CS AI · 15h ago6/10
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Tail-Aware HiFloat4: W4A4 Post-Training Quantization for Wan2.2

Researchers have developed Tail-Aware HiFloat4, a post-training quantization method that compresses text-to-video generation models using W4A4 (4-bit weights and activations) while maintaining output quality. The technique introduces activation-tail-aware calibration to handle statistical outliers, enabling efficient model deployment without retraining.

AIBullisharXiv – CS AI · 15h ago6/10
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Timestep-Aware SVDQuant-GPTQ for W4A4 Quantization of Wan2.2-I2V

Researchers present a new quantization method for large video diffusion models that achieves 59.3% memory reduction while maintaining near-baseline quality. The technique addresses challenges in compressing Wan2.2-I2V's mixture-of-experts architecture by using timestep-aware and expert-specific calibration strategies.