论文标题
记忆增强的关系网络,用于几次学习
Memory-Augmented Relation Network for Few-Shot Learning
论文作者
论文摘要
基于公制的少量学习方法集中于学习可转移的功能嵌入,从可见类别概述到在有限的标记实例的监督下,从可见类别到看不见的类别。但是,他们中的大多数人分别在工作环境中分别对待每个实例,而无需考虑其与他人的关系。在这项工作中,我们研究了一种新的度量学习方法,即记忆增强的关系网络(MRN),以明确利用这些关系。特别是,对于一个例子,我们选择从工作环境中视觉上相似的示例,并执行加权信息传播以专注于从所选信息中汇总有用信息以增强其表示形式。在MRN中,我们还将距离指标作为一个可学习的关系模块,该模块学会比较以进行相似性测量,并将工作环境与内存插槽相提并论,均导致其通用性。我们从经验上证明,与在两个主要基准数据集中的其他几次学习方法相比,MRN对其祖先产生了显着改善,并取得了竞争力甚至更好的表现,即Miniimagenet和Tieredimagenet。
Metric-based few-shot learning methods concentrate on learning transferable feature embedding that generalizes well from seen categories to unseen categories under the supervision of limited number of labelled instances. However, most of them treat each individual instance in the working context separately without considering its relationships with the others. In this work, we investigate a new metric-learning method, Memory-Augmented Relation Network (MRN), to explicitly exploit these relationships. In particular, for an instance, we choose the samples that are visually similar from the working context, and perform weighted information propagation to attentively aggregate helpful information from the chosen ones to enhance its representation. In MRN, we also formulate the distance metric as a learnable relation module which learns to compare for similarity measurement, and augment the working context with memory slots, both contributing to its generality. We empirically demonstrate that MRN yields significant improvement over its ancestor and achieves competitive or even better performance when compared with other few-shot learning approaches on the two major benchmark datasets, i.e. miniImagenet and tieredImagenet.