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RelationNet2: Deep Comparison Columns for Few-Shot Learning

2018-11-17Code Available0· sign in to hype

Xueting Zhang, Yu-ting Qiang, Flood Sung, Yongxin Yang, Timothy M. Hospedales

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Abstract

Few-shot deep learning is a topical challenge area for scaling visual recognition to open ended growth of unseen new classes with limited labeled examples. A promising approach is based on metric learning, which trains a deep embedding to support image similarity matching. Our insight is that effective general purpose matching requires non-linear comparison of features at multiple abstraction levels. We thus propose a new deep comparison network comprised of embedding and relation modules that learn multiple non-linear distance metrics based on different levels of features simultaneously. Furthermore, to reduce over-fitting and enable the use of deeper embeddings, we represent images as distributions rather than vectors via learning parameterized Gaussian noise regularization. The resulting network achieves excellent performance on both miniImageNet and tieredImageNet.

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Benchmark Results

DatasetModelMetricClaimedVerifiedStatus
Mini-Imagenet 20-way (1-shot)Deep Comparison NetworkAccuracy32.07Unverified
Mini-Imagenet 20-way (5-shot)Deep Comparison NetworkAccuracy47.31Unverified
Mini-Imagenet 5-way (1-shot)Deep Comparison NetworkAccuracy62.88Unverified
Mini-Imagenet 5-way (5-shot)Deep Comparison NetworkAccuracy75.84Unverified
Tiered ImageNet 5-way (1-shot)Deep Comparison NetworkAccuracy68.83Unverified
Tiered ImageNet 5-way (5-shot)Deep Comparison NetworkAccuracy79.62Unverified

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