Megumi Ito  Megumi Ito photo         

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Research Staff Member
IBM Research - Tokyo, Japan
  +81dash3dash3808dash5349

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2019

Analysis of Effect of Weight Variation on SNN Chip with PCM-Refresh Method
Akiyo Nomura, Megumi Ito, Atsuya Okazaki, Masatoshi Ishii, Sangbum Kim, Junka Okazawa, Kohji Hosokawa, Wilfried Haensch
Neural Processing Letters, 1-11, 2019

Performance Analysis of Spiking RBM with Measurement-Based Phase Change Memory Model
Masatoshi Ishii, Megumi Ito, Wanki Kim, SangBum Kim, Akiyo Nomura, Atsuya Okazaki, Junka Okazawa, Kohji Hosokawa, Matt BrightSky, Wilfried Haensch
Neural Information Processing, pp. 591--599, Springer International Publishing, 2019

Training Large-Scale Spiking Neural Networks on Multi-core Neuromorphic System Using Backpropagation
Megumi Ito, Malte J. Rasch, Masatoshi Ishii, Atsuya Okazaki, Sangbum Kim, Junka Okazawa, Akiyo Nomura, Kohji Hosokawa, Wilfried Haensch
International Conference on Neural Information Processing, pp. 185-194, 2019

On-Chip Trainable 1.4M 6T2R PCM Synaptic Array with 1.6K Stochastic LIF Neurons for Spiking RBM
M. Ishii, S. Kim, S. Lewis, A. Okazaki, J. Okazawa, M. Ito, M. Rasch, W. Kim, A. Nomura, U. Shin, K. Hosokawa, M. BrightSky, W. Haensch
2019 IEEE International Electron Devices Meeting (IEDM)


2018

Lightweight Refresh Method for PCM-based Neuromorphic Circuits
M. Ito, M. Ishii, A. Okazaki, S. Kim, J. Okazawa, A. Nomura, K. Hosokawa, W. Haensch
2018 IEEE 18th International Conference on Nanotechnology (IEEE-NANO), pp. 1-4

NVM Weight Variation Impact on Analog Spiking Neural Network Chip
Akiyo Nomura, Megumi Ito, Atsuya Okazaki, Masatoshi Ishii, Sangbum Kim, Junka Okazawa, Kohji Hosokawa, Wilfried Haensch
Neural Information Processing, pp. 676--685, Springer International Publishing, 2018


2016

A Power-efficient FPGA Accelerator: Systolic Array with cache-coherent interface for Pair-HMM Algorithm
Megumi Ito, Moriyoshi Ohara
2016 IEEE Symposium in Low-Power and High-Speed Chips (COOL CHIPS XIX), Yokohama, 2016


2015

A Dynamically Reconfigurable Equi-Joiner on FPGA
Takanori Ueda, Megumi Ito, Moriyoshi Ohara
IBM Research Report, 2015


2014

Variable-Length-Key Sorter on FPGA using Tries
Hiroshige Hayashizaki, Megumi Ito, Takanori Ueda, Moriyoshi Ohara
23rd International Workshop on Logic & Synthesis, 2014


2012

Experiences in building and scaling an enterprise application on multicore systems
Seetharami Seelam, Yanbin Liu, Parijat Dube, Megumi Ito, Deniz Binay, Michael Dawson, Pramod Nagaraja, Graeme Johnson, Liana Fong, Michel Hack, others
Concurrency and Computation: Practice and Experience 24(2), 111--123, Wiley Online Library, 2012


2011

A Tool for Scalable Profiling and Tracing of Java and Native Code Interactions
Parijat Dube, Seetharami Seelam, Yanbin Liu, Megumi Ito, Michel Hack, Liana Fong, Graeme Johnson, Michael Dawson, Li Zhang and Yuqing Gao
QEST , pp. 37--46, 2011