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  4. Direct Feedback Alignment Scales to Modern Deep Learning Tasks and Architectures
 
conference paper

Direct Feedback Alignment Scales to Modern Deep Learning Tasks and Architectures

Launay, Julien
•
Poli, Iacopo
•
Boniface, Francois
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Larochelle, H.
•
Ranzato, M.
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2020
Proceeding of the 2020 Advances in Neural Information Processing Systems
Advances in Neural Information Processing Systems

Despite being the workhorse of deep learning, the backpropagation algorithm is no panacea. It enforces sequential layer updates, thus preventing efficient parallelization of the training process. Furthermore, its biological plausibility is being challenged. Alternative schemes have been devised; yet, under the constraint of synaptic asymmetry, none have scaled to modern deep learning tasks and architectures. Here, we challenge this perspective, and study the applicability of Direct Feedback Alignment (DFA) to neural view synthesis, recommender systems, geometric learning, and natural language processing. In contrast with previous studies limited to computer vision tasks, our findings show that it successfully trains a large range of state-of-the-art deep learning architectures, with performance close to fine-tuned backpropagation. When a larger gap between DFA and backpropagation exists, like in Transformers, we attribute this to a need to rethink common practices for large and complex architectures. At variance with common beliefs, our work supports that challenging tasks can be tackled in the absence of weight transport.

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Type
conference paper
Author(s)
Launay, Julien
Poli, Iacopo
Boniface, Francois
Krzakala, Florent  
Editors
Larochelle, H.
•
Ranzato, M.
•
Hadsell, R.
•
Balcan, M. F.
•
Lin, H.
Date Issued

2020

Publisher

Curran Associates, Inc.

Published in
Proceeding of the 2020 Advances in Neural Information Processing Systems
Series title/Series vol.

Advances in Neural Information Processing Systems; 33

Volume

33

Start page

9346

URL

paper

https://papers.nips.cc/paper/2020/file/69d1fc78dbda242c43ad6590368912d4-Paper.pdf
Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
IDEPHICS1  
IDEPHICS2  
Event nameEvent date
Advances in Neural Information Processing Systems

Dec 6, 2020 – Dec 12, 2020

Available on Infoscience
March 5, 2021
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/175773
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