Compensated-DNN
Shubham Jain, Swagath Venkataramani, Vijayalakshmi Srinivasan, Jungwook Choi, Pierce Chuang, Leland Chang · 2018
Deep Neural Networks (DNNs) represent the state-of-the-art in many Artificial Intelligence (AI) tasks involving images, videos, text, and natural language. Their ubiquitous adoption is limited by the high computation and storage requirements of DNNs, especially for energy-constrained inference tasks at the edge using wearable and IoT devices. One promising approach to alleviate the computational challenges is implementing DNNs using low-precision fixed point (<16 bits) representation. However, the quantization error inherent in any Fixed Point (FxP) implementation limits the choice of bit-widths to maintain application-level accuracy. Prior efforts recommend increasing the network size and/or re-training the DNN to minimize loss due to quantization, albeit with limited success.