학술논문

Uncertainty Modeling of Emerging Device based Computing-in-Memory Neural Accelerators with Application to Neural Architecture Search
Document Type
Conference
Source
2021 26th Asia and South Pacific Design Automation Conference (ASP-DAC) Design Automation Conference (ASP-DAC), 2021 26th Asia and South Pacific. :859-864 Jan, 2021
Subject
Components, Circuits, Devices and Systems
Uncertainty
Design automation
Computational modeling
Neural networks
Computer architecture
Energy efficiency
Object recognition
Language
ISSN
2153-697X
Abstract
Emerging device based Computing-in-memory (CiM) has been proved to be a promising candidate for high energy efficiency deep neural network (DNN) computations. However, most emerging devices suffer uncertainty issues, resulting in a difference between actual data stored and the weight value it is design to be. This leads to an accuracy drop from trained models to actually deployed platforms. In this work, we offer a thorough analysis on the effect of such uncertainties induced changes in DNN models. To reduce the impact of device uncertainties, we propose UAE, a uncertainty-aware Neural Architecture Search scheme to identify a DNN model that is both accurate and robust against device uncertainties.