随着在边缘处使用容器的能力，它们构成了统一的解决方案，以打击分布式多主机ROS部署的复杂性，以及各个ROS节点和依赖关系部署。ROS中的双向通信对使用包含多个机器的非容集装箱中的集装箱ROS部署构成了挑战。我们将分析ROS采用的通信协议，以及不同容器网络模式的适用性及其对ROS部署的影响。最后，我们将为ROS呈现第7层透明代理服务器架构，作为所识别的问题的解决方案。不仅可以在集装箱中的环境中使用ROS，但通常在网段之间代理ROS。

机器人操作系统（ROS）提供软件框架，知识和社区生态系统提供资源，以便快速开发和原型智能机器人应用。通过标准化软件模块的通信，配置和调用，ROS便于重用设备驱动程序和算法实现。使用现有的功能实现允许用户从测试和已知的功能中组装其机器人应用程序。尽管ROS-Industrial Consortium和Rosin这样的项目努力将ROS带到工业应用和整合工业硬件，但我们观察缺乏在普遍整合基本物理IO的选择。在这项工作中，我们通过为ROS实现通用Modbus / TCP设备驱动程序来安置并提供解决此问题。

Many business workflows require extracting important fields from form-like documents (e.g. bank statements, bills of lading, purchase orders, etc.). Recent techniques for automating this task work well only when trained with large datasets. In this work we propose a novel data augmentation technique to improve performance when training data is scarce, e.g. 10-250 documents. Our technique, which we call FieldSwap, works by swapping out the key phrases of a source field with the key phrases of a target field to generate new synthetic examples of the target field for use in training. We demonstrate that this approach can yield 1-7 F1 point improvements in extraction performance.

Robotics software is pushing the limits of software engineering practice. The 3rd International Workshop on Robotics Software Engineering held a panel on "the best practices for robotic software engineering". This article shares the key takeaways that emerged from the discussion among the panelists and the workshop, ranging from architecting practices at the NASA/Caltech Jet Propulsion Laboratory, model-driven development at Bosch, development and testing of autonomous driving systems at Waymo, and testing of robotics software at XITASO. Researchers and practitioners can build on the contents of this paper to gain a fresh perspective on their activities and focus on the most pressing practices and challenges in developing robotics software today.

Understanding of the pathophysiology of obstructive lung disease (OLD) is limited by available methods to examine the relationship between multi-omic molecular phenomena and clinical outcomes. Integrative factorization methods for multi-omic data can reveal latent patterns of variation describing important biological signal. However, most methods do not provide a framework for inference on the estimated factorization, simultaneously predict important disease phenotypes or clinical outcomes, nor accommodate multiple imputation. To address these gaps, we propose Bayesian Simultaneous Factorization (BSF). We use conjugate normal priors and show that the posterior mode of this model can be estimated by solving a structured nuclear norm-penalized objective that also achieves rank selection and motivates the choice of hyperparameters. We then extend BSF to simultaneously predict a continuous or binary response, termed Bayesian Simultaneous Factorization and Prediction (BSFP). BSF and BSFP accommodate concurrent imputation and full posterior inference for missing data, including "blockwise" missingness, and BSFP offers prediction of unobserved outcomes. We show via simulation that BSFP is competitive in recovering latent variation structure, as well as the importance of propagating uncertainty from the estimated factorization to prediction. We also study the imputation performance of BSF via simulation under missing-at-random and missing-not-at-random assumptions. Lastly, we use BSFP to predict lung function based on the bronchoalveolar lavage metabolome and proteome from a study of HIV-associated OLD. Our analysis reveals a distinct cluster of patients with OLD driven by shared metabolomic and proteomic expression patterns, as well as multi-omic patterns related to lung function decline. Software is freely available at https://github.com/sarahsamorodnitsky/BSFP .

Traditionally, robots are regarded as universal motion generation machines. They are designed mainly by kinematics considerations while the desired dynamics is imposed by strong actuators and high-rate control loops. As an alternative, one can first consider the robot's intrinsic dynamics and optimize it in accordance with the desired tasks. Therefore, one needs to better understand intrinsic, uncontrolled dynamics of robotic systems. In this paper we focus on periodic orbits, as fundamental dynamic properties with many practical applications. Algebraic topology and differential geometry provide some fundamental statements about existence of periodic orbits. As an example, we present periodic orbits of the simplest multi-body system: the double-pendulum in gravity. This simple system already displays a rich variety of periodic orbits. We classify these into three classes: toroidal orbits, disk orbits and nonlinear normal modes. Some of these we found by geometrical insights and some by numerical simulation and sampling.

To apply federated learning to drug discovery we developed a novel platform in the context of European Innovative Medicines Initiative (IMI) project MELLODDY (grant n{\deg}831472), which was comprised of 10 pharmaceutical companies, academic research labs, large industrial companies and startups. The MELLODDY platform was the first industry-scale platform to enable the creation of a global federated model for drug discovery without sharing the confidential data sets of the individual partners. The federated model was trained on the platform by aggregating the gradients of all contributing partners in a cryptographic, secure way following each training iteration. The platform was deployed on an Amazon Web Services (AWS) multi-account architecture running Kubernetes clusters in private subnets. Organisationally, the roles of the different partners were codified as different rights and permissions on the platform and administrated in a decentralized way. The MELLODDY platform generated new scientific discoveries which are described in a companion paper.

尽管在最近的研究中，冷水珊瑚的分布模式（例如paragorgia achorea）受到了越来越多的关注，但对它们的原位活性模式知之甚少。在本文中，我们使用机器学习技术检查了灰木杆菌中的息肉活动，以分析从挪威Stjernsund部署的自主登录机群集获得的高分辨率时间序列数据和照片。本文得出的模型的互动说明是作为补充材料提供的。我们发现，珊瑚息肉扩展程度的最佳预测指标是当前方向，滞后为三个小时。与水流无直接相关的其他变量（例如温度和盐度）提供了更少的有关息肉活动的信息。有趣的是，可以通过对测量位点上方的水柱中的层流进行采样，而不是通过对珊瑚的直接流中的更湍流流进行采样。我们的结果表明，灰木息肉的活性模式受Stjernsund的强潮流状态的控制。看来，木托氏菌对环境当前状态的较短变化没有反应，而是根据潮汐周期本身的大规模模式来调整其行为，以优化营养的吸收。

当考虑$ N $标记的机器人的运动计划时，我们需要通过一系列平行，连续的，无碰撞的机器人运动来重新布置给定的启动配置为所需的目标配置。目的是在最短的时间内达到新配置；一个重要的约束是始终保持群体连接。以前已经考虑过这种类型的问题，最近值得注意的结果可实现不一定连接的重新配置：如果将起始配置映射到目标配置，则需要最大的曼哈顿距离$ D $，则总体时间表的总持续时间可以是限制为$ \ Mathcal {O}（d）$，这是最佳选择的恒定因素。但是，只有在允许断开连接的重新配置或用于缩放的配置（通过将给定对象的所有维度通过相同的乘法因子增加到相同的乘法因子增加）时，才能实现恒定拉伸。我们通过（1）建立$ \ omega（\ sqrt {n}）$的下限来解决这些主要的开放问题可以实现重新配置。此外，我们表明（3）决定是否可以实现2个制造物，而可以检查多项式时间是否可以实现1个制造pan。

深度强化学习使用深层神经网络来编码一项策略，该策略在广泛的应用程序中取得了很好的性能，但被广泛视为黑匣子模型。神经模糊的控制器给出了更可解释的深网替代品。不幸的是，神经模糊的控制器通常需要大量规则来解决相对简单的任务，从而难以解释。在这项工作中，我们提出了一种算法，将政策从深Q网络提取为紧凑的神经模糊控制器。这使我们能够通过蒸馏来训练紧凑的神经模糊控制器，以解决他们无法直接解决的任务，结合了深度强化学习的灵活性和紧凑的规则基础的可解释性。我们在OpenAI体育馆的三个知名环境中演示了算法，在那里我们仅使用2至6个模糊规则匹配DQN代理的性能。