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- W3091291418 abstract "Learning in a low-data regime from only a few labeled examples is an important, but challenging problem. Recent advancements within meta-learning have demonstrated encouraging performance, in particular, for the task of few-shot classification. We propose a novel optimization-based meta-learning approach for few-shot classification. It consists of an embedding network, providing a general representation of the image, and a base learner module. The latter learns a linear classifier during the inference through an unrolled optimization procedure. We design an inner learning objective composed of (i) a robust classification loss on the support set and (ii) an entropy loss, allowing transductive learning from unlabeled query samples. By employing an efficient initialization module and a Steepest Descent based optimization algorithm, our base learner predicts a powerful classifier within only a few iterations. Further, our strategy enables important aspects of the base learner objective to be learned during meta-training. To the best of our knowledge, this work is the first to integrate both induction and transduction into the base learner in an optimization-based meta-learning framework. We perform a comprehensive experimental analysis, demonstrating the effectiveness of our approach on four few-shot classification datasets." @default.
- W3091291418 created "2020-10-08" @default.
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- W3091291418 date "2020-10-01" @default.
- W3091291418 modified "2023-09-23" @default.
- W3091291418 title "Few-Shot Classification By Few-Iteration Meta-Learning" @default.
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