arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2011.13782cs.AI
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将人类的特定情境适应与元学习联系起来

Connecting Context-specific Adaptation in Humans to Meta-learning

Princeton University(普林斯顿大学);UC Berkeley(加州大学伯克利分校)

Rachit Dubey, Erin Grant, Michael Luo, Karthik Narasimhan, Thomas Griffiths

摘要:

认知控制是系统适应任务要求的能力,是认知的一个组成部分。关于认知控制的一个被广泛接受的事实是,它是上下文敏感的:成人和儿童都从上下文线索中推断出关于任务要求的信息,并使用这些推断从模糊的线索中学习。然而,人们使用上下文线索来指导适应新任务的确切方式仍然知之甚少。这项工作将认知控制的上下文敏感性质与具有上下文条件适应的元学习方法联系起来。我们首先确定人类学习和当前元学习方法之间的本质区别:与人类相比,现有的Meta学习算法不使用特定于任务的上下文线索,而是完全依赖于特定于任务的标签或奖励形式的在线反馈。为了解决这个问题,我们引入了一个框架,使用上下文信息的任务,以指导特定于任务的模型的初始化之前,适应在线反馈。我们展示了上下文条件元学习如何在认知任务中捕获人类行为,以及如何扩展它以提高各种设置中的学习速度,包括Few-Shot分类和低样本强化学习。我们的工作表明,用任务信息指导元学习可以捕捉复杂的、类似人类的行为,从而加深我们对认知控制的理解。

英文摘要:

Cognitive control, the ability of a system to adapt to the demands of a task, is an integral part of cognition. A widely accepted fact about cognitive control is that it is context-sensitive: Adults and children alike infer information about a task's demands from contextual cues and use these inferences to learn from ambiguous cues. However, the precise way in which people use contextual cues to guide adaptation to a new task remains poorly understood. This work connects the context-sensitive nature of cognitive control to a method for meta-learning with context-conditioned adaptation. We begin by identifying an essential difference between human learning and current approaches to meta-learning: In contrast to humans, existing meta-learning algorithms do not make use of task-specific contextual cues but instead rely exclusively on online feedback in the form of task-specific labels or rewards. To remedy this, we introduce a framework for using contextual information about a task to guide the initialization of task-specific models before adaptation to online feedback. We show how context-conditioned meta-learning can capture human behavior in a cognitive task and how it can be scaled to improve the speed of learning in various settings, including few-shot classification and low-sample reinforcement learning. Our work demonstrates that guiding meta-learning with task information can capture complex, human-like behavior, thereby deepening our understanding of cognitive control.

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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