几乎没有弹出的文本分类旨在在几个弹奏方案下对文本进行分类。以前的大多数方法都采用基于优化的元学习来获得任务分布。但是，由于少数样本和复杂模型之间的匹配以及有用的任务功能之间的区别，这些方法遭受了过度拟合问题的影响。为了解决这个问题，我们通过梯度相似性（AMGS）方法提出了一种新颖的自适应元学习器，以提高模型的泛化能力。具体而言，拟议的AMG基于两个方面缓解了过度拟合：（i）通过内部循环中的自我监督的辅助任务来获取样品的潜在语义表示并改善模型的概括，（ii）利用适应性元学习者通过适应性元学习者通过梯度通过相似性，可以在外环中基底学习者获得的梯度上增加约束。此外，我们对正则化对整个框架的影响进行系统分析。对几个基准测试的实验结果表明，与最先进的优化元学习方法相比，提出的AMG始终提高了很少的文本分类性能。

我们考虑在动态系统中进行的实验，在某些实验单元上的干预措施通过限制约束（例如有限的库存）影响其他单位。尽管具有实践意义，但这个“马尔可夫”干扰问题的最佳估计量在很大程度上是启发式性的，而且他们的偏见尚不很好地理解。我们在政策评估之一等实验中正式推论问题。与最先进的启发式方法相比，虽然公正的估计量显然受到了差异的巨大惩罚。我们介绍了一个上的估计器：Q（DQ）估计器中的差异。我们表明，DQ估计器通常可以比非政策评估的差异呈指数级的差异。同时，其偏见是干预措施的二阶。这产生了惊人的偏见变化权衡，因此DQ估计器有效地主导了最新的替代方案。从理论的角度来看，我们介绍了三种独立的新型技术，这些技术对强化理论（RL）具有独立感兴趣。我们的经验评估包括一组在城市级乘车模拟器上进行的实验。

犯罪预测对于公共安全和资源优化至关重要，但由于两个方面而言，这是非常具有挑战性的：i）犯罪活动的刑事模式的动态，犯罪事件在空间和时间域之间不均匀分布; ii）延时依赖于不同类型的犯罪（例如，盗窃，抢劫，攻击，损害），其揭示了犯罪的细粒度语义。为了解决这些挑战，我们提出了空间时间顺序超图网络（ST-SHN），以集体编码复杂的犯罪空间模式以及潜在的类别明智犯罪语义关系。具体而言，在长期和全局上下文下处理空间 - 时间动态，我们设计了一个具有超图学习范例的集成的图形结构化消息传递架构。为了在动态环境中捕获类别方面的犯罪异构关系，我们介绍了多通道路由机制，以了解犯罪类型的时间不断发展的结构依赖性。我们对两个现实世界数据集进行了广泛的实验，表明我们所提出的ST-SHN框架可以显着提高与各种最先进的基线相比的预测性能。源代码可用于：https://github.com/akaxlh/st-hn。

胰腺癌是世界上最严重恶性的癌症之一，这种癌症迅速迅速，具有很高的死亡率。快速的现场评估（玫瑰）技术通过立即分析与现场病理学家的快速染色的细胞影析学形象来创新工作流程，这使得在这种紧压的过程中能够更快的诊断。然而，由于缺乏经验丰富的病理学家，玫瑰诊断的更广泛的扩张已经受到阻碍。为了克服这个问题，我们提出了一个混合高性能深度学习模型，以实现自动化工作流程，从而释放占据病理学家的宝贵时间。通过使用我们特定的多级混合设计将变压器块引入该字段，由卷积神经网络（CNN）产生的空间特征显着增强了变压器全球建模。转向多级空间特征作为全球关注指导，这种设计将鲁棒性与CNN的感应偏差与变压器的复杂全球建模功能相结合。收集4240朵Rose图像的数据集以评估此未开发领域的方法。所提出的多级混合变压器（MSHT）在分类精度下实现95.68％，其鲜明地高于最先进的模型。面对对可解释性的需求，MSHT以更准确的关注区域表达其对应物。结果表明，MSHT可以以前所未有的图像规模精确地区分癌症样本，奠定了部署自动决策系统的基础，并在临床实践中扩大玫瑰。代码和记录可在：https://github.com/sagizty/multi-stage-ybrid-transformer。

库存记录不正确，经常发生，某些措施的年销售额约为4％。手动检测库存不准确性的成本较高，现有算法解决方案几乎完全依赖于从纵向数据中学习，这在现代零售操作引起的动态环境中不足。取而代之的是，我们提出了基于商店和SKU上的横截面数据的解决方案，观察到检测库存不准确性可以被视为识别（低级别）泊松矩阵中异常的问题。在低级别矩阵中检测到的最先进的方法显然不足。具体而言，从理论的角度来看，这些方法的恢复保证要求需要观察到无反对的条目，而噪音消失了（在我们的问题中，在许多应用中都不是这种情况）。如此有动力，我们提出了一种在概念上简单的入门方法，以在低级别的泊松矩阵中进行异常检测。我们的方法适合一类概率异常模型。我们表明，我们的算法所产生的成本以最低最佳最佳速率接近最佳算法。使用来自消费品零售商的合成数据和真实数据，我们表明我们的方法可提供超过现有检测方法的10倍成本降低。在此过程中，我们建立了最新的工作，该工作寻求矩阵完成的入门错误保证，并为次指定矩阵确定此类保证，这是独立利益的结果。

We present the interpretable meta neural ordinary differential equation (iMODE) method to rapidly learn generalizable (i.e., not parameter-specific) dynamics from trajectories of multiple dynamical systems that vary in their physical parameters. The iMODE method learns meta-knowledge, the functional variations of the force field of dynamical system instances without knowing the physical parameters, by adopting a bi-level optimization framework: an outer level capturing the common force field form among studied dynamical system instances and an inner level adapting to individual system instances. A priori physical knowledge can be conveniently embedded in the neural network architecture as inductive bias, such as conservative force field and Euclidean symmetry. With the learned meta-knowledge, iMODE can model an unseen system within seconds, and inversely reveal knowledge on the physical parameters of a system, or as a Neural Gauge to "measure" the physical parameters of an unseen system with observed trajectories. We test the validity of the iMODE method on bistable, double pendulum, Van der Pol, Slinky, and reaction-diffusion systems.

In recent years, arbitrary image style transfer has attracted more and more attention. Given a pair of content and style images, a stylized one is hoped that retains the content from the former while catching style patterns from the latter. However, it is difficult to simultaneously keep well the trade-off between the content details and the style features. To stylize the image with sufficient style patterns, the content details may be damaged and sometimes the objects of images can not be distinguished clearly. For this reason, we present a new transformer-based method named STT for image style transfer and an edge loss which can enhance the content details apparently to avoid generating blurred results for excessive rendering on style features. Qualitative and quantitative experiments demonstrate that STT achieves comparable performance to state-of-the-art image style transfer methods while alleviating the content leak problem.

In recent years, the Transformer architecture has shown its superiority in the video-based person re-identification task. Inspired by video representation learning, these methods mainly focus on designing modules to extract informative spatial and temporal features. However, they are still limited in extracting local attributes and global identity information, which are critical for the person re-identification task. In this paper, we propose a novel Multi-Stage Spatial-Temporal Aggregation Transformer (MSTAT) with two novel designed proxy embedding modules to address the above issue. Specifically, MSTAT consists of three stages to encode the attribute-associated, the identity-associated, and the attribute-identity-associated information from the video clips, respectively, achieving the holistic perception of the input person. We combine the outputs of all the stages for the final identification. In practice, to save the computational cost, the Spatial-Temporal Aggregation (STA) modules are first adopted in each stage to conduct the self-attention operations along the spatial and temporal dimensions separately. We further introduce the Attribute-Aware and Identity-Aware Proxy embedding modules (AAP and IAP) to extract the informative and discriminative feature representations at different stages. All of them are realized by employing newly designed self-attention operations with specific meanings. Moreover, temporal patch shuffling is also introduced to further improve the robustness of the model. Extensive experimental results demonstrate the effectiveness of the proposed modules in extracting the informative and discriminative information from the videos, and illustrate the MSTAT can achieve state-of-the-art accuracies on various standard benchmarks.

Machine learning models are typically evaluated by computing similarity with reference annotations and trained by maximizing similarity with such. Especially in the bio-medical domain, annotations are subjective and suffer from low inter- and intra-rater reliability. Since annotations only reflect the annotation entity's interpretation of the real world, this can lead to sub-optimal predictions even though the model achieves high similarity scores. Here, the theoretical concept of Peak Ground Truth (PGT) is introduced. PGT marks the point beyond which an increase in similarity with the reference annotation stops translating to better Real World Model Performance (RWMP). Additionally, a quantitative technique to approximate PGT by computing inter- and intra-rater reliability is proposed. Finally, three categories of PGT-aware strategies to evaluate and improve model performance are reviewed.

We propose a novel approach to self-supervised learning of point cloud representations by differentiable neural rendering. Motivated by the fact that informative point cloud features should be able to encode rich geometry and appearance cues and render realistic images, we train a point-cloud encoder within a devised point-based neural renderer by comparing the rendered images with real images on massive RGB-D data. The learned point-cloud encoder can be easily integrated into various downstream tasks, including not only high-level tasks like 3D detection and segmentation, but low-level tasks like 3D reconstruction and image synthesis. Extensive experiments on various tasks demonstrate the superiority of our approach compared to existing pre-training methods.