我们介绍了一种新的合成数据生成器PSP-HDRI $+$，该$+$被证明是ImageNet和其他大规模合成数据对应物的卓越预训练替代方案。我们证明，使用合成数据的预训练将产生一个更通用的模型，即使在分布外（OOD）集测试时，该模型的性能也比替代方案更好。此外，使用由人关键点估计指标指导的消融研究，具有现成的模型架构，我们展示了如何操纵我们的合成数据生成器以进一步提高模型性能。

近年来，人员检测和人类姿势估计已经取得了很大的进步，通过大规模标记的数据集帮助。但是，这些数据集没有保证或分析人类活动，姿势或情境多样性。此外，隐私，法律，安全和道德问题可能会限制收集更多人类数据的能力。一个新兴的替代方案，用于减轻这些问题的一些问题是合成数据。然而，综合数据生成器的创建令人难以置信的具有挑战性，并防止研究人员探索他们的实用性。因此，我们释放了一个以人为本的合成数据发生器PeoplesAnspeople，它包含模拟就绪3D人类资产，参数化照明和相机系统，并生成2D和3D边界框，实例和语义分段，以及Coco姿态标签。使用PeoplesAnspeople，我们使用Detectron2 KeyPoint R-CNN变体进行基准合成数据训练[1]。我们发现，使用合成数据进行预培训网络和对目标现实世界数据的微调（几次传输到Coco-Person Rain的有限子集[2]）导致了60.37 $ 60.37 $的关键点AP（ Coco Test-Dev2017）使用相同的实际数据培训的型号优于同一实际数据（35.80美元的Keypoint AP），并使用Imagenet预先培训（Keypoint AP为57.50美元）。这种自由可用的数据发生器应使其在人用于人工以人为主的计算机视野中的临界领域进行实际转移学习的新兴仿真领域。

We present AI-SDC, an integrated suite of open source Python tools to facilitate Statistical Disclosure Control (SDC) of Machine Learning (ML) models trained on confidential data prior to public release. AI-SDC combines (i) a SafeModel package that extends commonly used ML models to provide ante-hoc SDC by assessing the vulnerability of disclosure posed by the training regime; and (ii) an Attacks package that provides post-hoc SDC by rigorously assessing the empirical disclosure risk of a model through a variety of simulated attacks after training. The AI-SDC code and documentation are available under an MIT license at https://github.com/AI-SDC/AI-SDC.

随着在线社交媒体提供的沟通自由，仇恨言论越来越多地产生。这导致网络冲突影响个人和国家一级的社会生活。结果，在发送到社交网络之前，仇恨的内容分类越来越需要过滤仇恨内容。本文着重于使用多个深层模型在社交媒体中对仇恨言论进行分类，这些模型通过整合了最近的基于变压器的语言模型，例如BERT和神经网络。为了改善分类性能，我们通过几种合奏技术进行了评估，包括软投票，最大价值，硬投票和堆叠。我们使用了三个公开可用的Twitter数据集（Davidson，Hateval2019，OLID）来识别进攻性语言。我们融合了所有这些数据集以生成单个数据集（DHO数据集），该数据集在不同的标签上更加平衡，以执行多标签分类。我们的实验已在Davidson数据集和Dho Corpora上举行。后来给出了最佳的总体结果，尤其是F1宏观分数，即使它需要更多的资源（时间执行和内存）。实验显示了良好的结果，尤其是整体模型，其中堆叠在Davidson数据集上的F1得分为97％，并且在DHO数据集上汇总合奏的77％。

最近的性能（SOTA）用于图表代表学习（GRL）的性能的改进已经以显着的计算资源要求，例如，用于训练，例如，通过背部计算渐变在许多数据时期。同时，单数值分解（SVD）可以找到闭合形式的解决方案以凸出的问题，仅使用少数时代的时期。在本文中，我们为具有适度硬件的人进行了更多计算贸易。我们设计一个计算\ textit {隐式}定义的矩阵的SVD的框架，并将此框架应用于多个GRL任务。对于每个任务，我们导出了SOTA模型的线性近似，其中我们设计（昂贵 - 存储）矩阵$ \ mathbf {m} $和培训模型，通过$ \ mathbf {m}的svd rend-form，以封闭形式$，无需计算$ \ mathbf {m} $的条目。通过在一个步骤中融合到独特的点，并且在没有计算梯度的情况下，我们的模型在文章引文和生物互动网络等各种图表中显示出具有竞争性的经验测试性能。更重要的是，SVD可以初始化更深入的模型，该模型几乎无处不在地是非线性的，但在其参数驻留在超平面上时，虽然线性地行事，但是在超平面上初始化时，则行为。然后，更深入的模型可以在仅几个时期内进行微调。总的来说，我们的程序比现有技术的方法训练数百次，同时竞争经验测试性能。我们开源我们的实施：https://github.com/samihaija/isvd

A Digital Twin (DT) is a simulation of a physical system that provides information to make decisions that add economic, social or commercial value. The behaviour of a physical system changes over time, a DT must therefore be continually updated with data from the physical systems to reflect its changing behaviour. For resource-constrained systems, updating a DT is non-trivial because of challenges such as on-board learning and the off-board data transfer. This paper presents a framework for updating data-driven DTs of resource-constrained systems geared towards system health monitoring. The proposed solution consists of: (1) an on-board system running a light-weight DT allowing the prioritisation and parsimonious transfer of data generated by the physical system; and (2) off-board robust updating of the DT and detection of anomalous behaviours. Two case studies are considered using a production gas turbine engine system to demonstrate the digital representation accuracy for real-world, time-varying physical systems.

Deep neural networks (DNN) have outstanding performance in various applications. Despite numerous efforts of the research community, out-of-distribution (OOD) samples remain significant limitation of DNN classifiers. The ability to identify previously unseen inputs as novel is crucial in safety-critical applications such as self-driving cars, unmanned aerial vehicles and robots. Existing approaches to detect OOD samples treat a DNN as a black box and assess the confidence score of the output predictions. Unfortunately, this method frequently fails, because DNN are not trained to reduce their confidence for OOD inputs. In this work, we introduce a novel method for OOD detection. Our method is motivated by theoretical analysis of neuron activation patterns (NAP) in ReLU based architectures. The proposed method does not introduce high computational workload due to the binary representation of the activation patterns extracted from convolutional layers. The extensive empirical evaluation proves its high performance on various DNN architectures and seven image datasets. ion.

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.

Graph Neural Networks (GNNs) have shown great potential in the field of graph representation learning. Standard GNNs define a local message-passing mechanism which propagates information over the whole graph domain by stacking multiple layers. This paradigm suffers from two major limitations, over-squashing and poor long-range dependencies, that can be solved using global attention but significantly increases the computational cost to quadratic complexity. In this work, we propose an alternative approach to overcome these structural limitations by leveraging the ViT/MLP-Mixer architectures introduced in computer vision. We introduce a new class of GNNs, called Graph MLP-Mixer, that holds three key properties. First, they capture long-range dependency and mitigate the issue of over-squashing as demonstrated on the Long Range Graph Benchmark (LRGB) and the TreeNeighbourMatch datasets. Second, they offer better speed and memory efficiency with a complexity linear to the number of nodes and edges, surpassing the related Graph Transformer and expressive GNN models. Third, they show high expressivity in terms of graph isomorphism as they can distinguish at least 3-WL non-isomorphic graphs. We test our architecture on 4 simulated datasets and 7 real-world benchmarks, and show highly competitive results on all of them.

In recent years, the exponential proliferation of smart devices with their intelligent applications poses severe challenges on conventional cellular networks. Such challenges can be potentially overcome by integrating communication, computing, caching, and control (i4C) technologies. In this survey, we first give a snapshot of different aspects of the i4C, comprising background, motivation, leading technological enablers, potential applications, and use cases. Next, we describe different models of communication, computing, caching, and control (4C) to lay the foundation of the integration approach. We review current state-of-the-art research efforts related to the i4C, focusing on recent trends of both conventional and artificial intelligence (AI)-based integration approaches. We also highlight the need for intelligence in resources integration. Then, we discuss integration of sensing and communication (ISAC) and classify the integration approaches into various classes. Finally, we propose open challenges and present future research directions for beyond 5G networks, such as 6G.