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Large-Scale Meta-Learning with Continual Trajectory Shifting

ICML 2021 · Optimization › Optimizers · approach: Gradient-based meta-learning theory · 1 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use continual trajectory shifting instead of ReptileImageNet-pretrained ResNet18 meta-learning · Average across target datasets (1,000 training images each)accuracy: 61.68 -> 62.12Helped
Use continual trajectory shifting instead of ReptileImageNet-pretrained ResNet18 meta-learning · CIFAR10 (1,000 training images)accuracy: 84.58±0.12 -> 84.42±0.15Hurt
Use continual trajectory shifting instead of ReptileImageNet-pretrained ResNet18 meta-learning · CIFAR100 (1,000 training images)accuracy: 47.98±0.14 -> 48.34±0.21Helped
Use continual trajectory shifting instead of ReptileImageNet-pretrained ResNet18 meta-learning · SVHN (1,000 training images)accuracy: 62.39±0.72 -> 62.82±0.56Helped
Use continual trajectory shifting instead of ReptileImageNet-pretrained ResNet18 meta-learning · Stanford Dogs (1,000 training images)accuracy: 56.97±0.12 -> 57.53±0.48Helped
Use continual trajectory shifting instead of ReptileImageNet-pretrained ResNet18 meta-learning · VGG Pets (1,000 training images)accuracy: 84.25±0.22 -> 84.65±0.11Helped
Use continual trajectory shifting instead of ReptileImageNet-pretrained ResNet18 meta-learning · VGG Flowers (1,000 training images)accuracy: 87.22±0.31 -> 87.54±0.21Helped
Use continual trajectory shifting instead of ReptileImageNet-pretrained ResNet18 meta-learning · Food (1,000 training images)accuracy: 37.35±0.22 -> 37.84±0.20Helped
Use continual trajectory shifting instead of ReptileImageNet-pretrained ResNet18 meta-learning · CUB (1,000 training images)accuracy: 35.44±0.48 -> 36.40±0.20Helped
Use continual trajectory shifting instead of ReptileImageNet-pretrained ResNet18 meta-learning · DTD (1,000 training images)accuracy: 58.98±0.59 -> 59.53±0.25Helped
Remove shifting of task-learning trajectories after meta-updates (ablation)Continual Trajectory Shifting · VGG Petstest accuracyHurt
Replace the meta-update shift with a shift of the same magnitude in a random direction (ablation)Continual Trajectory Shifting · VGG Petstest accuracyHurt

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