本文对地面农业机器人系统和应用进行了全面综述,并特别关注收获,涵盖研究,商业产品和结果及其能力技术。大多数文献涉及作物检测的发展,通过视觉及其相关挑战的现场导航。健康监测,产量估计,水状态检查,种子种植和清除杂草经常遇到任务。关于机器人收割,苹果,草莓,西红柿和甜辣椒,主要是出版物,研究项目和商业产品中考虑的农作物。据报道的收获农业解决方案,通常由移动平台,单个机器人手臂/操纵器和各种导航/视觉系统组成。本文回顾了报告的特定功能和硬件的发展,通常是运营农业机器人收割机所要求的;它们包括(a)视觉系统,(b)运动计划/导航方法(对于机器人平台和/或ARM),(c)具有3D可视化的人类机器人交流(HRI)策略,(d)系统操作计划&掌握策略和(e)机器人最终效果/抓手设计。显然,自动化农业,特别是通过机器人系统的自主收获是一个研究领域,它仍然敞开着,在可以做出新的贡献的地方提供了一些挑战。
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Recent advances in coreset methods have shown that a selection of representative datapoints can replace massive volumes of data for Bayesian inference, preserving the relevant statistical information and significantly accelerating subsequent downstream tasks. Existing variational coreset constructions rely on either selecting subsets of the observed datapoints, or jointly performing approximate inference and optimizing pseudodata in the observed space akin to inducing points methods in Gaussian Processes. So far, both approaches are limited by complexities in evaluating their objectives for general purpose models, and require generating samples from a typically intractable posterior over the coreset throughout inference and testing. In this work, we present a black-box variational inference framework for coresets that overcomes these constraints and enables principled application of variational coresets to intractable models, such as Bayesian neural networks. We apply our techniques to supervised learning problems, and compare them with existing approaches in the literature for data summarization and inference.
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