Neural Architecture Search and Beyond
Neural Architecture Search and Beyond
Barret Zoph
Con?dential + Proprietary
Con?dential + Proprietary
Progress in AI
Generation 1: Good Old Fashioned AI
Generation 2: Shallow Learning
Handcraft features
Learn predictions
Generation 3: Deep Learning
Handcraft predictions
Learn nothing
Handcraft algorithm (architectures, data processing, )
Learn features and predictions end-to-end
Generation 4: Learn2Learn (?)
Handcraft nothing
Learn algorithm, features and predictions end-to-end
Con?dential + Proprietary
Importance of architectures for Vision
Designing neural network architectures is hard
Lots of human efforts go into tuning them
There is not a lot of intuition into how to design them well
Can we try and learn good architectures automatically?
Canziani et al, 2017
Two layers from the famous Inception V4 computer vision model.
Szegedy et al, 2017
Con?dential + Proprietary
Convolutional Architectures
Krizhevsky et al, 2012
Con?dential + Proprietary
How does architecture search work?
Controller
Sample models
from search
space
Uses primitives
found in CV
Research
Trainer
Accuracy
Reinforcement
Learning
or Evolution
Reward
Zoph & Le. Neural Architecture Search with Reinforcement Learning. ICLR, 2017. abs/1611.01578
Real et al. Large Scale Evolution of Image Classi?ers. ICML, 2017. abs/1703.01041
Con?dential + Proprietary
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