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arXiv 1702.06559cs.LG
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主动一次性学习

Active One-shot Learning

Berkeley AI Research (BAIR)(伯克利人工智能研究所)

Mark Woodward, Chelsea Finn

摘要:

一次性学习的最新进展已经产生了可以从少数标记示例中学习的模型,用于被动分类和回归任务。本文将强化学习与一次性学习相结合,允许模型在分类过程中决定哪些示例值得标记。我们引入了一个分类任务,其中呈现了一个图像流,并且在每个时间步上,必须做出决定,要么预测标签,要么支付以接收正确的标签。我们提出了一个基于动作-价值函数的递归神经网络,并展示了它学习如何以及何时请求标签的能力。通过奖励函数的选择,该模型可以在纯监督任务上实现比类似模型更高的预测精度,或者以更少的标签请求换取预测精度。

英文摘要:

Recent advances in one-shot learning have produced models that can learn from a handful of labeled examples, for passive classification and regression tasks. This paper combines reinforcement learning with one-shot learning, allowing the model to decide, during classification, which examples are worth labeling. We introduce a classification task in which a stream of images are presented and, on each time step, a decision must be made to either predict a label or pay to receive the correct label. We present a recurrent neural network based action-value function, and demonstrate its ability to learn how and when to request labels. Through the choice of reward function, the model can achieve a higher prediction accuracy than a similar model on a purely supervised task, or trade prediction accuracy for fewer label requests.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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