我们提出了一种可区分的渲染算法，以进行有效的新型视图合成。通过偏离基于音量的表示，支持学习点表示，我们在训练和推理方面的内存和运行时范围内改进了现有方法的数量级。该方法从均匀采样的随机点云开始，并使用基于可区分的SPLAT渲染器来发展模型以匹配一组输入图像，从而学习了每点位置和观看依赖性外观。在训练和推理中，我们的方法比NERF快300倍，质量只有边缘牺牲，而在静态场景中使用少于10 〜MB的记忆。对于动态场景，我们的方法比Stnerf训练两个数量级，并以接近互动速率渲染，同时即使在不施加任何时间固定的正则化合物的情况下保持较高的图像质量和时间连贯性。

我们研究气动非划和操纵（即吹），作为有效移动散射物体进入目标插座的一种手段。由于空气动力的混乱性质，吹吹控制器必须（i）不断适应其动作的意外变化，（ii）保持细粒度的控制，因为丝毫失误可能会导致很大的意外后果（例如，散射对象已经已经存在在一堆中）和（iii）推断远程计划（例如，将机器人移至战略性吹动地点）。我们在深度强化学习的背景下应对这些挑战，引入了空间动作地图框架的多频版本。这可以有效学习基于视觉的政策，这些政策有效地结合了高级计划和低级闭环控制，以进行动态移动操作。实验表明，我们的系统学会了对任务的有效行为，特别是证明吹吹以比推动更好的下游性能，并且我们的政策改善了基线的性能。此外，我们表明我们的系统自然会鼓励跨越低级细粒控制和高级计划的不同亚物质之间的新兴专业化。在配备微型气鼓的真实移动机器人上，我们表明我们的模拟训练策略很好地转移到了真实的环境中，并可以推广到新颖的物体。

在设计，制造和控制问题中，我们通常面临合成的任务，其中我们必须生成满足一组约束的对象或配置，同时最大化一个或多个客观函数。合成问题通常是特征在于物理过程，其中许多不同的实现可以实现目标。这种多对一地图对前馈合成的监督学习具有挑战，因为该组可行的设计可能具有复杂的结构。此外，许多物理模拟的不可分化性质可防止有效的直接优化。我们通过两级神经网络架构来解决这两个问题，我们可以认为是一个AutoEncoder。我们首先学习解码器：一个可怜的代理，近似于多对一的物理实现过程。然后，我们学习编码器，从目标映射到设计，同时使用固定解码器来评估实现的质量。我们在两种案例研究中评估方法：添加剂制造中的挤出机路径规划和约束软机器人逆运动学。我们比较我们使用学习的代理商直接优化设计的方法，并监督合成问题的学习。我们发现，我们的方法可以产生比监督学习更高的质量解决方案，同时具有直接优化的质量竞争，计算成本大大降低。

Graph Neural Networks (GNNs) are a family of graph networks inspired by mechanisms existing between nodes on a graph. In recent years there has been an increased interest in GNN and their derivatives, i.e., Graph Attention Networks (GAT), Graph Convolutional Networks (GCN), and Graph Recurrent Networks (GRN). An increase in their usability in computer vision is also observed. The number of GNN applications in this field continues to expand; it includes video analysis and understanding, action and behavior recognition, computational photography, image and video synthesis from zero or few shots, and many more. This contribution aims to collect papers published about GNN-based approaches towards computer vision. They are described and summarized from three perspectives. Firstly, we investigate the architectures of Graph Neural Networks and their derivatives used in this area to provide accurate and explainable recommendations for the ensuing investigations. As for the other aspect, we also present datasets used in these works. Finally, using graph analysis, we also examine relations between GNN-based studies in computer vision and potential sources of inspiration identified outside of this field.

The number of international benchmarking competitions is steadily increasing in various fields of machine learning (ML) research and practice. So far, however, little is known about the common practice as well as bottlenecks faced by the community in tackling the research questions posed. To shed light on the status quo of algorithm development in the specific field of biomedical imaging analysis, we designed an international survey that was issued to all participants of challenges conducted in conjunction with the IEEE ISBI 2021 and MICCAI 2021 conferences (80 competitions in total). The survey covered participants' expertise and working environments, their chosen strategies, as well as algorithm characteristics. A median of 72% challenge participants took part in the survey. According to our results, knowledge exchange was the primary incentive (70%) for participation, while the reception of prize money played only a minor role (16%). While a median of 80 working hours was spent on method development, a large portion of participants stated that they did not have enough time for method development (32%). 25% perceived the infrastructure to be a bottleneck. Overall, 94% of all solutions were deep learning-based. Of these, 84% were based on standard architectures. 43% of the respondents reported that the data samples (e.g., images) were too large to be processed at once. This was most commonly addressed by patch-based training (69%), downsampling (37%), and solving 3D analysis tasks as a series of 2D tasks. K-fold cross-validation on the training set was performed by only 37% of the participants and only 50% of the participants performed ensembling based on multiple identical models (61%) or heterogeneous models (39%). 48% of the respondents applied postprocessing steps.

Sparse modelling or model selection with categorical data is challenging even for a moderate number of variables, because one parameter is roughly needed to encode one category or level. The Group Lasso is a well known efficient algorithm for selection continuous or categorical variables, but all estimates related to a selected factor usually differ. Therefore, a fitted model may not be sparse, which makes the model interpretation difficult. To obtain a sparse solution of the Group Lasso we propose the following two-step procedure: first, we reduce data dimensionality using the Group Lasso; then to choose the final model we use an information criterion on a small family of models prepared by clustering levels of individual factors. We investigate selection correctness of the algorithm in a sparse high-dimensional scenario. We also test our method on synthetic as well as real datasets and show that it performs better than the state of the art algorithms with respect to the prediction accuracy or model dimension.

我们提出了三种新型的修剪技术，以提高推理意识到的可区分神经结构搜索（DNAS）的成本和结果。首先，我们介绍了DNA的随机双路构建块，它可以通过内存和计算复杂性在内部隐藏尺寸上进行搜索。其次，我们在搜索过程中提出了一种在超级网的随机层中修剪块的算法。第三，我们描述了一种在搜索过程中修剪不必要的随机层的新技术。由搜索产生的优化模型称为Prunet，并在Imagenet Top-1图像分类精度的推理潜伏期中为NVIDIA V100建立了新的最先进的Pareto边界。将Prunet作为骨架还优于COCO对象检测任务的GPUNET和EFIDENENET，相对于平均平均精度（MAP）。

心脏磁共振成像通常用于评估心脏解剖结构和功能。左心室血池和左心室心肌的描述对于诊断心脏疾病很重要。不幸的是，在CMR采集程序中，患者的运动可能会导致最终图像中出现的运动伪像。这种伪像降低了CMR图像的诊断质量和对程序的重做。在本文中，我们提出了一个多任务SWIN UNET变压器网络，用于在CMRXMOTION挑战中同时解决两个任务：CMR分割和运动伪像分类。我们将细分和分类作为多任务学习方法，使我们能够确定CMR的诊断质量并同时生成口罩。 CMR图像分为三个诊断质量类别，而所有具有非严重运动伪像的样本都被分割。使用5倍交叉验证训练的五个网络的合奏实现了骰子系数为0.871的分割性能，分类精度为0.595。

通过磁共振成像（MRI）评估肿瘤负担对于评估胶质母细胞瘤的治疗反应至关重要。由于疾病的高异质性和复杂性，该评估的性能很复杂，并且与高变异性相关。在这项工作中，我们解决了这个问题，并提出了一条深度学习管道，用于对胶质母细胞瘤患者进行全自动的端到端分析。我们的方法同时确定了肿瘤的子区域，包括第一步的肿瘤，周围肿瘤和手术腔，然后计算出遵循神经符号学（RANO）标准的当前响应评估的体积和双相测量。此外，我们引入了严格的手动注释过程，其随后是人类专家描绘肿瘤子区域的，并捕获其分割的信心，后来在训练深度学习模型时被使用。我们广泛的实验研究的结果超过了760次术前和504例从公共数据库获得的神经胶质瘤后患者（2021 - 2020年在19个地点获得）和临床治疗试验（47和69个地点，可用于公共数据库（在19个地点获得）（47和69个地点）术前/术后患者，2009-2011）并以彻底的定量，定性和统计分析进行了备份，表明我们的管道在手动描述时间的一部分中对术前和术后MRI进行了准确的分割（最高20比人更快。二维和体积测量与专家放射科医生非常吻合，我们表明RANO测量并不总是足以量化肿瘤负担。

近年来，对机器学习算法在电子商务，全渠道营销和销售行业中的应用引起了人们的兴趣。它不仅符合算法的进步，而且还代表数据可用性，代表交易，用户和背景产品信息。以不同方式查找相关的产品，即替代品和补充对于供应商网站和供应商的建议至关重要，以执行有效的分类优化。本文介绍了一种新的方法，用于根据嵌入Cleora算法的图来查找产品的替代品和补充。我们还提供有关最先进的购物者算法的实验评估，研究了建议与行业专家的调查的相关性。结论是，此处提出的新方法提供了适当的推荐产品选择，需要最少的其他信息。该算法可用于各种企业，有效地识别替代品和互补产品选项。