Papers by Ningyi Xu
BitDistiller: Unleashing the Potential of Sub-4-Bit LLMs via Self-Distillation (2024.acl-long)
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| Challenge: | Weight quantization has emerged as a popular solution to reduce memory and computational demands. |
| Approach: | They propose a framework that synergizes Quantization-Aware Training (QAT) with Knowledge Distillation (KD) to boost the performance of LLMs at sub-4-bit. |
| Outcome: | The proposed framework outperforms existing QAT methods on language understanding and complex reasoning benchmarks on sub-4-bit models. |
AFPQ: Asymmetric Floating Point Quantization for LLMs (2024.findings-acl)
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| Challenge: | Low-bit weight quantization can save memory and accelerate inference. |
| Approach: | They propose asymmetric FP quantization which sets separate scales for positive and negative values. |
| Outcome: | The proposed method leads to large accuracy improvements and can be easily plugged into other quantization methods, including GPTQ and AWQ, for better performance. |