Constrained multiagent reinforcement learning (C-MARL) is gaining importance as MARL algorithms find new applications in real-world systems ranging from energy systems to drone swarms. Most C-MARL algorithms use a primal-dual approach to enforce constraints through a penalty function added to the reward. In this paper, we study the structural effects of the primal-dual approach on the constraints and value function. First, we show that using the constraint evaluation as the penalty leads to a weak notion of safety, but by making simple modifications to the penalty function, we can enforce meaningful probabilistic safety constraints. Second, we exploit the structural effects of primal-dual methods on value functions, leading to improved value estimates. Simulations in a simple constrained multiagent environment show that our reinterpretation of the primal-dual method in terms of probabilistic constraints is meaningful, and that our proposed value estimation procedure improves convergence to a safe joint policy.

我们提供了PelficGridWorld软件包，为用户提供轻量级，模块化和可定制的框架，用于创建专注的电源系统的多代理体育馆环境，该环境易于与强化学习（RL）的现有培训框架集成。虽然存在许多框架用于训练多代理RL（MARL）政策，但没有可以快速原型并发开发环境，尤其是在所需电流解决方案来定义网格的异构（复合式，多器件）电力系统的背景下 - 级别变量和成本。 PowerGridWorld是一个开源软件包，有助于填补此间隙。为了突出PowerGridWorld的关键功能，我们展示了两个案例研究，并使用Openai的多代理深度确定性政策梯度（MADDPG）和RLLIB的近端策略优化（PPO）算法来演示MARL政策。在这两种情况下，至少一些代理子集合在每次作为奖励（负成本）结构的一部分中的一部分中的功率流溶液的元件。

随着可再生于可再生能级的级别越来越多地对AC最佳功率流（AC OPF）进行数据驱动的方法的兴趣，以管理不确定性;然而，缺乏纪律的数据集创建和基准测试禁止在文献中的方法中进行了有用的比较。为了灌输置信度，模型必须能够可靠地预测跨各种操作条件的解决方案。本文开发了Julia和Python的OPF学习包，它使用计算上有效的方法来创建跨越AC OPF可行区域的广泛频谱的代表性数据集。负载配置文件从包含AC OPF可行集合的凸集均匀地采样。对于发现的每个不可行的点，通过使用宽松配方的性质，发现凸起的凸形集减少。该框架被示出为生成数据集，这些数据集更具代表性的整个可行性空间与文献中的传统技术，改善了机器学习模型性能。

Recent advances in upper limb prostheses have led to significant improvements in the number of movements provided by the robotic limb. However, the method for controlling multiple degrees of freedom via user-generated signals remains challenging. To address this issue, various machine learning controllers have been developed to better predict movement intent. As these controllers become more intelligent and take on more autonomy in the system, the traditional approach of representing the human-machine interface as a human controlling a tool becomes limiting. One possible approach to improve the understanding of these interfaces is to model them as collaborative, multi-agent systems through the lens of joint action. The field of joint action has been commonly applied to two human partners who are trying to work jointly together to achieve a task, such as singing or moving a table together, by effecting coordinated change in their shared environment. In this work, we compare different prosthesis controllers (proportional electromyography with sequential switching, pattern recognition, and adaptive switching) in terms of how they present the hallmarks of joint action. The results of the comparison lead to a new perspective for understanding how existing myoelectric systems relate to each other, along with recommendations for how to improve these systems by increasing the collaborative communication between each partner.

A "heart attack" or myocardial infarction (MI), occurs when an artery supplying blood to the heart is abruptly occluded. The "gold standard" method for imaging MI is Cardiovascular Magnetic Resonance Imaging (MRI), with intravenously administered gadolinium-based contrast (late gadolinium enhancement). However, no "gold standard" fully automated method for the quantification of MI exists. In this work, we propose an end-to-end fully automatic system (MyI-Net) for the detection and quantification of MI in MRI images. This has the potential to reduce the uncertainty due to the technical variability across labs and inherent problems of the data and labels. Our system consists of four processing stages designed to maintain the flow of information across scales. First, features from raw MRI images are generated using feature extractors built on ResNet and MoblieNet architectures. This is followed by the Atrous Spatial Pyramid Pooling (ASPP) to produce spatial information at different scales to preserve more image context. High-level features from ASPP and initial low-level features are concatenated at the third stage and then passed to the fourth stage where spatial information is recovered via up-sampling to produce final image segmentation output into: i) background, ii) heart muscle, iii) blood and iv) scar areas. New models were compared with state-of-art models and manual quantification. Our models showed favorable performance in global segmentation and scar tissue detection relative to state-of-the-art work, including a four-fold better performance in matching scar pixels to contours produced by clinicians.

Large language models (LLMs) have been shown to be able to perform new tasks based on a few demonstrations or natural language instructions. While these capabilities have led to widespread adoption, most LLMs are developed by resource-rich organizations and are frequently kept from the public. As a step towards democratizing this powerful technology, we present BLOOM, a 176B-parameter open-access language model designed and built thanks to a collaboration of hundreds of researchers. BLOOM is a decoder-only Transformer language model that was trained on the ROOTS corpus, a dataset comprising hundreds of sources in 46 natural and 13 programming languages (59 in total). We find that BLOOM achieves competitive performance on a wide variety of benchmarks, with stronger results after undergoing multitask prompted finetuning. To facilitate future research and applications using LLMs, we publicly release our models and code under the Responsible AI License.

这项研究是有关阿拉伯历史文档的光学特征识别（OCR）的一系列研究的第二阶段，并研究了不同的建模程序如何与问题相互作用。第一项研究研究了变压器对我们定制的阿拉伯数据集的影响。首次研究的弊端之一是训练数据的规模，由于缺乏资源，我们的3000万张图像中仅15000张图像。另外，我们添加了一个图像增强层，时间和空间优化和后校正层，以帮助该模型预测正确的上下文。值得注意的是，我们提出了一种使用视觉变压器作为编码器的端到端文本识别方法，即BEIT和Vanilla Transformer作为解码器，消除了CNNs以进行特征提取并降低模型的复杂性。实验表明，我们的端到端模型优于卷积骨架。该模型的CER为4.46％。

由于其在非洲以外的40多个国家 /地区的迅速传播，最近的蒙基托克斯爆发已成为公共卫生问题。由于与水痘和麻疹的相似之处，蒙基托斯在早期的临床诊断是具有挑战性的。如果不容易获得验证性聚合酶链反应（PCR）测试，那么计算机辅助检测蒙基氧基病变可能对可疑病例的监视和快速鉴定有益。只要有足够的训练示例，深度学习方法在自动检测皮肤病变中有效。但是，截至目前，此类数据集尚未用于猴蛋白酶疾病。在当前的研究中，我们首先开发``Monkeypox皮肤病变数据集（MSLD）。用于增加样本量，并建立了3倍的交叉验证实验。在下一步中，采用了几种预训练的深度学习模型，即VGG-16，Resnet50和InceptionV3用于对Monkeypox和Monkeypox和Monkeypox和其他疾病。还开发了三种型号的合奏。RESNET50达到了82.96美元（\ pm4.57 \％）$的最佳总体准确性，而VGG16和整体系统的准确性达到了81.48美元（\ pm6.87 \％）$和$ 79.26（\ pm1.05 \％）$。还开发了一个原型网络应用程序作为在线蒙基蛋白筛选工具。虽然该有限数据集的初始结果是有希望的，但需要更大的人口统计学多样化的数据集来进一步增强性增强性。这些的普遍性 楷模。

近期目睹了机器学习算法系统的快速发展，尤其是加强学习，自然语言处理，计算机和机器人视觉，图像处理，语音和情感处理和理解。凭借机器学习模型，算法及其应用的越来越重要和相关性，并且随着更多创新使用的深度学习和人工智能的情况，目前的体积呈现出一些创新研究工作及其在现实世界中的应用，如股票交易，医疗和医疗保健系统和软件自动化。本书中的章节说明了如何设计，优化和部署机器学习和深度学习算法和模型。该体积对于高级毕业生和博士生，研究人员，大学教师，练习数据科学家和数据工程师，专业人士和顾问以及在机器学习，深度学习和人工智能的广泛领域。

索赔检测和验证对于新闻认识至关重要，并且已成为有前途的技术，以减轻新闻中的错误信息。然而，大多数现有的工作侧重于索赔句子的分析，同时俯瞰关键背景属性，例如索引者，声称对象和连接到索赔的其他知识。在这项工作中，我们提供了新闻本，新的基准，了解新闻领域的知识意识索赔检测。我们重新定义了索赔探测问题，包括提取与索赔相关的附加背景属性，并发布529索赔由103个新闻文章提示。此外，报讯人旨在在新兴场景中索取索赔检测系统，包括不少培训数据的看不见的主题。最后，我们对这款新基准测试提供了对各种零射和及时的基础基准的全面评估。