Neuromorphic computing with memristors: from device to system

16/03/2021 @ 4:00 PM – 5:00 PM Asia/Singapore Timezone

CA2DM Homely Atmosphere Online Seminars (CHAOS) – Joint with Department of Materials Science & Engineering (NUS) Materials for the Future Zoom Seminar Series

Speaker: Professor Huaqiang Wu
Affiliation: Director, Department of microelectronics & nanoelectronics; Institute of Microelectronics, Tsinghua University, Beijing, China
Host: Associate Professor Chen Jingsheng (National University of Singapore)

Abstract Details: Recently, computation in memory becomes very hot due to the urgent needs of high computing efficiency in artificial intelligence applications. In contrast to von-neumann architecture, computation in memory technology avoids the data movement between CPU/GPU and memory which could greatly reduce the power consumption.

Memristor is one ideal device which could not only store information with multi-bits, but also conduct computing using ohm’s law. To make the best use of the memristor in neuromorphic systems, a memristor-friendly architecture and the software-hardware collaborative design methods are essential, and the key problem is how to utilize the memristor’s analog behavior.

We have designed a generic memristor crossbar based architecture for convolutional neural networks and perceptrons, which take full consideration of the analog characteristics of memristors. Furthermore, we have proposed an online learning algorithm for memristor based neuromorphic systems which overcomes the varation of memristor cells and endue the system the ability of reinforcement learning based on memristor’s analog behavior.

About the Speaker:
Dr. Huaqiang Wu is presently the director of the department of microelectronics and nanoelectronics, and the director of the Institute of Microelectronics, Tsinghua University, Beijing, China. Dr. Wu is also served as the deputy director of Beijing Innovation Center for Future Chips. Dr. Wu received his Ph.D. degree in electrical and computer engineering from Cornell University, Ithaca, NY, in 2005. Prior to that, he graduated from Tsinghua University, Beijing, China, in 2000 with double B.S. degrees in material science & engineering and enterprise management. From 2006 to 2008, he was a senior engineer and MTS in Spansion LLC, Sunnyvale, CA. He joined Tsinghua University in 2009. His research interests include emerging memory and neuromorphic computing technologies. Dr. Wu has published more than 200 technical papers and owns more than 90 US and China patents. Dr. Wu’s papers have appeared on Nature, Nature Nanotechnology, Proceedings of the IEEE, IEEE EDL, ISSCC, IEDM, VLSI, etc. Currently, Dr. Wu served as the TPC chair for 2021 EDTM conference and TPC member of VLSI Technology, DAC, VLSI-TSA, etc. Dr. Wu was the recipient of 2019 Xplore Prize, National Science Foundation for Distinguished Young Scholars, China Industry University Research Cooperation Innovation Award, and Beijing Outstanding Young Talent Award.

Discussion moderators : Assoc Prof Chen Jingsheng (Host, NUS), Asst Prof Benjamin Tee (NUS), Prof Do Anh Tuan (A*Star)

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