Search Results for author: David Bol

Found 6 papers, 1 papers with code

Implementing a LoRa Software-Defined Radio on a General-Purpose ULP Microcontroller

no code implementations12 Jul 2021 Mathieu Xhonneux, Jérôme Louveaux, David Bol

In this work, we explore a software-defined radio architecture by demonstrating a LoRa transceiver running on custom ULP MCU codenamed SleepRider with an ARM Cortex-M4 CPU.

Bottom-up and top-down approaches for the design of neuromorphic processing systems: Tradeoffs and synergies between natural and artificial intelligence

no code implementations2 Jun 2021 Charlotte Frenkel, David Bol, Giacomo Indiveri

In this paper, we provide a comprehensive overview of the field, highlighting the different levels of granularity at which this paradigm shift is realized and comparing design approaches that focus on replicating natural intelligence (bottom-up) versus those that aim at solving practical artificial intelligence applications (top-down).

Computational Efficiency Edge-computing +1

A 28-nm Convolutional Neuromorphic Processor Enabling Online Learning with Spike-Based Retinas

no code implementations13 May 2020 Charlotte Frenkel, Jean-Didier Legat, David Bol

With an energy per classification of 313nJ at 0. 6V and a 0. 32-mm$^2$ area for accuracies of 95. 3% (on-chip training) and 97. 5% (off-chip training) on MNIST, we demonstrate that SPOON reaches the efficiency of conventional machine learning accelerators while embedding on-chip learning and being compatible with event-based sensors, a point that we further emphasize with N-MNIST benchmarking.

Benchmarking Edge-computing

Learning without feedback: Fixed random learning signals allow for feedforward training of deep neural networks

1 code implementation3 Sep 2019 Charlotte Frenkel, Martin Lefebvre, David Bol

While the backpropagation of error algorithm enables deep neural network training, it implies (i) bidirectional synaptic weight transport and (ii) update locking until the forward and backward passes are completed.

Edge-computing

MorphIC: A 65-nm 738k-Synapse/mm$^2$ Quad-Core Binary-Weight Digital Neuromorphic Processor with Stochastic Spike-Driven Online Learning

no code implementations17 Apr 2019 Charlotte Frenkel, Jean-Didier Legat, David Bol

Recent trends in the field of neural network accelerators investigate weight quantization as a means to increase the resource- and power-efficiency of hardware devices.

2k Quantization

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