arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1902.00719cs.LGcs.AIcs.HCstat.ML
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基于空间界面赋值的强化学习学习用户偏好

Learning User Preferences via Reinforcement Learning with Spatial Interface Valuing

School of Computing and Information Science(计算与信息科学学院);Florida International University(佛罗里达国际大学)

Miguel Alonso

摘要:

交互式机器学习关注的是创建与人类一起在环境中运行以完成任务的系统。一个典型的用途是以认知或物理方式扩展或放大人类的能力,要求机器适应用户的意图和偏好。通常,这采取人类操作员向用户提供某种类型的反馈的形式,该反馈可以是显式反馈、隐式反馈或两者的组合。明确的反馈,如通过鼠标点击,带来了很高的认知负荷。本研究的重点是扩展交互式机器学习的最新技术水平,通过证明代理可以学习人类用户的行为,并适应偏好,减少明确的人类反馈的混合反馈设置。学习代理从经由空间接口给出的手势感知其自身行为的值。这种反馈机制被称为空间界面价值。该方法是在模拟环境中的抓取任务,使用机械臂与可变的抓地力设置实验评估。初步结果表明,使用空间接口赋值的学习代理可以更快地学习一个价值函数映射空间姿态到预期的未来奖励相比,那些相同的代理只是接收明确的反馈,表明代理感知反馈从人类用户通过空间接口可以作为一个有效的补充,现有的方法。

英文摘要:

Interactive Machine Learning is concerned with creating systems that operate in environments alongside humans to achieve a task. A typical use is to extend or amplify the capabilities of a human in cognitive or physical ways, requiring the machine to adapt to the users' intentions and preferences. Often, this takes the form of a human operator providing some type of feedback to the user, which can be explicit feedback, implicit feedback, or a combination of both. Explicit feedback, such as through a mouse click, carries a high cognitive load. The focus of this study is to extend the current state of the art in interactive machine learning by demonstrating that agents can learn a human user's behavior and adapt to preferences with a reduced amount of explicit human feedback in a mixed feedback setting. The learning agent perceives a value of its own behavior from hand gestures given via a spatial interface. This feedback mechanism is termed Spatial Interface Valuing. This method is evaluated experimentally in a simulated environment for a grasping task using a robotic arm with variable grip settings. Preliminary results indicate that learning agents using spatial interface valuing can learn a value function mapping spatial gestures to expected future rewards much more quickly as compared to those same agents just receiving explicit feedback, demonstrating that an agent perceiving feedback from a human user via a spatial interface can serve as an effective complement to existing approaches.

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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