Paper ID | ASPS-7.5 |
Paper Title |
SQWA: STOCHASTIC QUANTIZED WEIGHT AVERAGING FOR IMPROVING THE GENERALIZATION CAPABILITY OF LOW-PRECISION DEEP NEURAL NETWORKS |
Authors |
Sungho Shin, Yoonho Boo, Wonyong Sung, Seoul National University, South Korea |
Session | ASPS-7: Data Science & Machine Learning |
Location | Gather.Town |
Session Time: | Thursday, 10 June, 16:30 - 17:15 |
Presentation Time: | Thursday, 10 June, 16:30 - 17:15 |
Presentation |
Poster
|
Topic |
Applied Signal Processing Systems: Signal Processing Systems [DIS-EMSA] |
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Virtual Presentation |
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Abstract |
Low-precision deep neural networks (DNNs) are very needed for efficient implementations, but severe quantization of weights often sacrifices the generalization capability and lowers the test accuracy. We present a new quantized neural network optimization approach, stochastic quantized weight averaging (SQWA), to design low-precision DNNs with good generalization capability using model averaging. The proposed approach includes (1) floating-point model training, (2) direct quantization of weights, (3) capturing multiple low precision models during retraining with cyclical learning rates, (4) averaging the captured models, and (5) re-quantizing the averaged model and fine-tuning it with low-learning rates. With SQWA training, we could develop the best performing QDNNs for image classification on ImageNet datasets and also for semantic segmentation on Pascal VOC 2012 dataset. |