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arXiv · 1804.10969

UNIQ: Uniform Noise Injection for Non-Uniform Quantization of Neural Networks

Chaim Baskin·Eli Schwartz·Evgenii Zheltonozhskii·Natan Liss·Raja Giryes·Alex M. Bronstein·Avi Mendelson
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Abstract

We present a novel method for neural network quantization that emulates a non-uniform $k$-quantile quantizer, which adapts to the distribution of the quantized parameters. Our approach provides a novel alternative to the existing uniform quantization techniques for neural networks. We suggest to compare the results as a function of the bit-operations (BOPS) performed, assuming a look-up table availability for the non-uniform case. In this setup, we show the advantages of our strategy in the low computational budget regime. While the proposed solution is harder to implement in hardware, we believe it sets a basis for new alternatives to neural networks quantization.

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Chaim Baskin, Eli Schwartz, Evgenii Zheltonozhskii, Natan Liss, Raja Giryes, Alex M. Bronstein, Avi Mendelson. 2018-04-29. UNIQ: Uniform Noise Injection for Non-Uniform Quantization of Neural Networks. https://doi.org/10.1145/3444943

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