人类的物体感知能力令人印象深刻,当试图开发具有类似机器人的解决方案时,这变得更加明显。从人类如何将视觉和触觉用于对象感知和相关任务的灵感中,本文总结了机器人应用的多模式对象感知的当前状态。它涵盖了生物学灵感,传感器技术,数据集以及用于对象识别和掌握的感觉数据处理的各个方面。首先,概述了多模式对象感知的生物学基础。然后讨论了传感技术和数据收集策略。接下来,介绍了主要计算方面的介绍,突出显示了每个主要应用领域的一些代表性文章,包括对象识别,传输学习以及对象操纵和掌握。最后,在每个领域的当前进步中,本文概述了有希望的新研究指示。
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We consider the problem of decision-making under uncertainty in an environment with safety constraints. Many business and industrial applications rely on real-time optimization with changing inputs to improve key performance indicators. In the case of unknown environmental characteristics, real-time optimization becomes challenging, particularly for the satisfaction of safety constraints. We propose the ARTEO algorithm, where we cast multi-armed bandits as a mathematical programming problem subject to safety constraints and learn the environmental characteristics through changes in optimization inputs and through exploration. We quantify the uncertainty in unknown characteristics by using Gaussian processes and incorporate it into the utility function as a contribution which drives exploration. We adaptively control the size of this contribution using a heuristic in accordance with the requirements of the environment. We guarantee the safety of our algorithm with a high probability through confidence bounds constructed under the regularity assumptions of Gaussian processes. Compared to existing safe-learning approaches, our algorithm does not require an exclusive exploration phase and follows the optimization goals even in the explored points, which makes it suitable for safety-critical systems. We demonstrate the safety and efficiency of our approach with two experiments: an industrial process and an online bid optimization benchmark problem.
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能够推荐在线社交网络中用户之间的链接对于用户与志趣相投的个人以及利用社交媒体信息发展业务的平台本身和第三方联系很重要。预测通常基于无监督或监督的学习,通常利用简单而有效的图形拓扑信息,例如普通邻居的数量。但是,我们认为有关个人个人社会结构的更丰富信息可能会带来更好的预测。在本文中,我们建议利用良好的社会认知理论来提高链接预测绩效。根据这些理论,个人平均将自己的社会关系安排在五个同心圆下,以减少亲密关系。我们假设不同圈子中的关系在预测新链接方面具有不同的重要性。为了验证这一主张,我们专注于流行的功能萃取预测算法(既无监督和监督),并将其扩展到包括社交圈的意识。我们验证了这些圆圈感知算法对几个基准测试的预测性能(包括其基线版本以及基于节点的链接和GNN链接预测),利用了两个Twitter数据集,其中包括一个视频游戏玩家和通用用户的社区。我们表明,社会意识通常可以在预测绩效方面有重大改进,击败了Node2Vec和Seal等最新解决方案,而不会增加计算复杂性。最后,我们表明可以使用社交意识来代替针对特定类别用户的分类器(可能是昂贵或不切实际)的。
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