现代对象检测体系结构正朝着采用自我监督的学习（SSL）来通过相关的借口任务来提高性能检测。文献中尚未探讨单眼3D对象检测的借口任务。本文研究了已建立的自我监督边界框的应用，通过将随机窗口标记为借口任务来回收。训练了3D检测器的分类器头，以对包含不同比例的地面真相对象的随机窗口进行分类，从而处理前后背景的不平衡。我们使用RTM3D检测模型作为基线评估借口任务，并在应用数据增强的情况下评估。我们证明，在基线得分上，使用SSL在MAP 3D中的2-3％和0.9-1.5％的BEV得分之间的提高。我们提出了反向类频率重新加权（ICFW）地图分数，该分数突出显示了具有长尾巴的类不平衡数据集中低频类检测的改进。我们证明了ICFW的改进MAP 3D和BEV分数，以考虑Kitti验证数据集中的类不平衡。通过借口任务，我们看到ICFW指标增加了4-5％。

With the development of deep representation learning, the domain of reinforcement learning (RL) has become a powerful learning framework now capable of learning complex policies in high dimensional environments. This review summarises deep reinforcement learning (DRL) algorithms and provides a taxonomy of automated driving tasks where (D)RL methods have been employed, while addressing key computational challenges in real world deployment of autonomous driving agents. It also delineates adjacent domains such as behavior cloning, imitation learning, inverse reinforcement learning that are related but are not classical RL algorithms. The role of simulators in training agents, methods to validate, test and robustify existing solutions in RL are discussed.

The previous fine-grained datasets mainly focus on classification and are often captured in a controlled setup, with the camera focusing on the objects. We introduce the first Fine-Grained Vehicle Detection (FGVD) dataset in the wild, captured from a moving camera mounted on a car. It contains 5502 scene images with 210 unique fine-grained labels of multiple vehicle types organized in a three-level hierarchy. While previous classification datasets also include makes for different kinds of cars, the FGVD dataset introduces new class labels for categorizing two-wheelers, autorickshaws, and trucks. The FGVD dataset is challenging as it has vehicles in complex traffic scenarios with intra-class and inter-class variations in types, scale, pose, occlusion, and lighting conditions. The current object detectors like yolov5 and faster RCNN perform poorly on our dataset due to a lack of hierarchical modeling. Along with providing baseline results for existing object detectors on FGVD Dataset, we also present the results of a combination of an existing detector and the recent Hierarchical Residual Network (HRN) classifier for the FGVD task. Finally, we show that FGVD vehicle images are the most challenging to classify among the fine-grained datasets.

Of late, insurance fraud detection has assumed immense significance owing to the huge financial & reputational losses fraud entails and the phenomenal success of the fraud detection techniques. Insurance is majorly divided into two categories: (i) Life and (ii) Non-life. Non-life insurance in turn includes health insurance and auto insurance among other things. In either of the categories, the fraud detection techniques should be designed in such a way that they capture as many fraudulent transactions as possible. Owing to the rarity of fraudulent transactions, in this paper, we propose a chaotic variational autoencoder (C-VAE to perform one-class classification (OCC) on genuine transactions. Here, we employed the logistic chaotic map to generate random noise in the latent space. The effectiveness of C-VAE is demonstrated on the health insurance fraud and auto insurance datasets. We considered vanilla Variational Auto Encoder (VAE) as the baseline. It is observed that C-VAE outperformed VAE in both datasets. C-VAE achieved a classification rate of 77.9% and 87.25% in health and automobile insurance datasets respectively. Further, the t-test conducted at 1% level of significance and 18 degrees of freedom infers that C-VAE is statistically significant than the VAE.

We introduce Action-GPT, a plug and play framework for incorporating Large Language Models (LLMs) into text-based action generation models. Action phrases in current motion capture datasets contain minimal and to-the-point information. By carefully crafting prompts for LLMs, we generate richer and fine-grained descriptions of the action. We show that utilizing these detailed descriptions instead of the original action phrases leads to better alignment of text and motion spaces. Our experiments show qualitative and quantitative improvement in the quality of synthesized motions produced by recent text-to-motion models. Code, pretrained models and sample videos will be made available at https://actiongpt.github.io

Pictionary, the popular sketch-based guessing game, provides an opportunity to analyze shared goal cooperative game play in restricted communication settings. However, some players occasionally draw atypical sketch content. While such content is occasionally relevant in the game context, it sometimes represents a rule violation and impairs the game experience. To address such situations in a timely and scalable manner, we introduce DrawMon, a novel distributed framework for automatic detection of atypical sketch content in concurrently occurring Pictionary game sessions. We build specialized online interfaces to collect game session data and annotate atypical sketch content, resulting in AtyPict, the first ever atypical sketch content dataset. We use AtyPict to train CanvasNet, a deep neural atypical content detection network. We utilize CanvasNet as a core component of DrawMon. Our analysis of post deployment game session data indicates DrawMon's effectiveness for scalable monitoring and atypical sketch content detection. Beyond Pictionary, our contributions also serve as a design guide for customized atypical content response systems involving shared and interactive whiteboards. Code and datasets are available at https://drawm0n.github.io.

与计算机视觉合并的基于无人机的遥感系统（UAV）遥感系统具有协助建筑物建设和灾难管理的潜力，例如地震期间的损害评估。可以通过检查来评估建筑物到地震的脆弱性，该检查考虑到相关组件的预期损害进展以及组件对结构系统性能的贡献。这些检查中的大多数是手动进行的，导致高利用人力，时间和成本。本文提出了一种通过基于无人机的图像数据收集和用于后处理的软件库来自动化这些检查的方法，该方法有助于估算地震结构参数。这里考虑的关键参数是相邻建筑物，建筑计划形状，建筑计划区域，屋顶上的对象和屋顶布局之间的距离。通过使用距离测量传感器以及通过Google Earth获得的数据进行的现场测量，可以验证所提出的方法在估计上述参数估算上述参数方面的准确性。可以从https://uvrsabi.github.io/访问其他详细信息和代码。

招聘和大学录取等许多申请涉及申请人的评估和选择。这些任务在根本上是困难的，并且需要从多个不同方面（我们称为“属性”）结合证据。在这些应用程序中，申请人的数量通常很大，一个常见的做法是以分布式方式将任务分配给多个评估人员。具体而言，在经常使用的整体分配中，每个评估者都会分配申请人的子集，并要求评估其分配的申请人的所有相关信息。但是，这样的评估过程受到诸如错误校准的问题的约束（评估人员仅见一小部分申请人，并且可能没有良好的相对质量感）和歧视（评估者受到有关申请人无关的信息的影响）。我们确定基于属性的评估允许替代分配方案。具体而言，我们考虑分配每个评估者更多的申请人，但每个申请人的属性更少，称为分割分配。我们通过理论和实验方法比较了分段分配与几个维度的整体分配。我们在这两种方法之间建立了各种折衷方案，并确定一种方法在其中一种方法比另一种方法更准确地评估。

基于姿势的动作识别主要是通过以整体化处理输入骨骼的方法来解决的，即姿势树中的关节是整体处理的。但是，这种方法忽略了这样一个事实，即行动类别通常以局部动力动力学为特征，这些动力动力学仅涉及涉及手（例如“竖起大拇指”）或腿部（例如``踢''）的零件联合组的小子集。尽管存在基于部分组的方法，但在全球姿势框架内并未考虑每个部分组，从而导致这种方法缺乏。此外，常规方法采用独立的方式流（例如关节，骨，关节速度，骨速度），并在这些流中多次训练网络，从而大大增加了训练参数的数量。为了解决这些问题，我们介绍了PSUMNET，这是一种新颖的方法，用于可扩展有效的基于姿势的动作识别。在表示级别，我们提出了一种基于全球框架的部分流方法，而不是基于常规模态流。在每个部分流中，从多种模式的相关数据被处理管道统一和消耗。在实验上，PSumnet在广泛使用的NTURGB+D 60/120数据集和密集的关节骨架数据集NTU 60-X/120-X上实现了最先进的性能。 PSUMNET高效，优于竞争方法，使用100％-400％的参数。 PSUMNET还概括为具有竞争性能的SHREC手势数据集。总体而言，PSUMNET的可伸缩性，性能和效率使其成为动作识别以及在Compute限制的嵌入式和边缘设备上部署的吸引人选择。可以在https://github.com/skelemoa/psumnet上访问代码和预算模型

浅水深度图像使对象保持焦点，前景和背景背景模糊。这种效果需要比智能手机摄像机更大的镜头光圈。常规方法根据其深度获取RGB-D图像和模糊图像区域。但是，这种方法不适用于反射性或透明的表面，也不适用于深度值不准确或模棱两可的细微详细的对象轮廓。我们提出了一种基于学习的方法，可以在用单个小光圈镜头获得的手持式爆发中综合降水模糊。我们的深度学习模型直接产生了浅水深度图像，避免了明显的基于深度的模糊。模拟的孔径直径等于爆发过程中的相机翻译。由于不准确或模棱两可的深度估计，我们的方法不会遭受伪影的困扰，并且非常适合肖像摄影。