计算机视觉和机器学习中的许多问题都可以作为代表高阶关系的超图的学习。 HyperGraph Learning的最新方法基于消息传递扩展了图形神经网络，这在建模远程依赖性和表达能力方面很简单但根本上有限。另一方面，基于张量的模棱两可的神经网络具有最大的表现力，但是由于沉重的计算和对固定顺序超中件的严格假设，它们的应用受到了超图的限制。我们解决了这些问题，并目前呈现了模棱两可的HyperGraph神经网络（EHNN），这是实现一般超图学习最大表达性的层的首次尝试。我们还提出了基于超网（EHNN-MLP）和自我注意力（EHNN-TransFormer）的两个实用实现，这些实现易于实施，理论上比大多数消息传递方法更具表现力。我们证明了它们在一系列超图学习问题中的能力，包括合成K边缘识别，半监督分类和视觉关键点匹配，并报告对强烈消息传递基线的改进性能。我们的实施可从https://github.com/jw9730/ehnn获得。

具有提高可传递性的对抗性攻击 - 在已知模型上精心制作的对抗性示例的能力也欺骗了未知模型 - 由于其实用性，最近受到了很多关注。然而，现有的可转移攻击以确定性的方式制作扰动，并且常常无法完全探索损失表面，从而陷入了贫穷的当地最佳最佳效果，并且遭受了低传递性的折磨。为了解决这个问题，我们提出了细心多样性攻击（ADA），该攻击以随机方式破坏了不同的显着特征以提高可转移性。首先，我们将图像注意力扰动到破坏不同模型共享的通用特征。然后，为了有效避免局部优势差，我们以随机方式破坏了这些功能，并更加详尽地探索可转移扰动的搜索空间。更具体地说，我们使用发电机来产生对抗性扰动，每个扰动都根据输入潜在代码而以不同的方式打扰。广泛的实验评估证明了我们方法的有效性，优于最先进方法的可转移性。代码可在https://github.com/wkim97/ada上找到。

我们表明，没有图形特异性修改的标准变压器可以在理论和实践中都带来图形学习的有希望的结果。鉴于图，我们只是将所有节点和边缘视为独立的令牌，用令牌嵌入增强它们，然后将它们馈入变压器。有了适当的令牌嵌入选择，我们证明这种方法在理论上至少与不变的图形网络（2-ign）一样表达，由等效线性层组成，它已经比所有消息传播的图形神经网络（GNN）更具表现力）。当在大规模图数据集（PCQM4MV2）上接受训练时，与具有精致的图形特异性电感偏置相比，与GNN基准相比，与GNN基准相比，与GNN基准相比，与GNN基准相比，我们创造的令牌化图形变压器（Tokengt）取得了明显更好的结果。我们的实施可从https://github.com/jw9730/tokengt获得。

深度指标学习旨在学习嵌入空间，即使在训练期间他们的类是看不见的，数据之间的距离反映了他们的类等价。然而，培训中可用的有限数量排除了学习嵌入空间的概括。由此激励，我们介绍了一种新的数据增强方法，该方法合成了新颖类及其嵌入向量。我们的方法可以向嵌入式模型提供丰富的语义信息，通过在原始数据中使用新类别增强培训数据来提高其泛化。我们通过学习和利用条件生成模型来实现这个想法，其中，给定类标签和噪声，产生类的随机嵌入向量。我们所提出的发电机允许损失通过增强现实和多样的类来使用更丰富的级关系，从而更好地推广了看不见的样本。公共基准数据集上的实验结果表明，我们的方法明确提高了基于代理的损失的性能。

We propose a novel semantic segmentation algorithm by learning a deconvolution network. We learn the network on top of the convolutional layers adopted from VGG 16layer net. The deconvolution network is composed of deconvolution and unpooling layers, which identify pixel-wise class labels and predict segmentation masks. We apply the trained network to each proposal in an input image, and construct the final semantic segmentation map by combining the results from all proposals in a simple manner. The proposed algorithm mitigates the limitations of the existing methods based on fully convolutional networks by integrating deep deconvolution network and proposal-wise prediction; our segmentation method typically identifies detailed structures and handles objects in multiple scales naturally. Our network demonstrates outstanding performance in PASCAL VOC 2012 dataset, and we achieve the best accuracy (72.5%) among the methods trained with no external data through ensemble with the fully convolutional network.

Existing federated classification algorithms typically assume the local annotations at every client cover the same set of classes. In this paper, we aim to lift such an assumption and focus on a more general yet practical non-IID setting where every client can work on non-identical and even disjoint sets of classes (i.e., client-exclusive classes), and the clients have a common goal which is to build a global classification model to identify the union of these classes. Such heterogeneity in client class sets poses a new challenge: how to ensure different clients are operating in the same latent space so as to avoid the drift after aggregation? We observe that the classes can be described in natural languages (i.e., class names) and these names are typically safe to share with all parties. Thus, we formulate the classification problem as a matching process between data representations and class representations and break the classification model into a data encoder and a label encoder. We leverage the natural-language class names as the common ground to anchor the class representations in the label encoder. In each iteration, the label encoder updates the class representations and regulates the data representations through matching. We further use the updated class representations at each round to annotate data samples for locally-unaware classes according to similarity and distill knowledge to local models. Extensive experiments on four real-world datasets show that the proposed method can outperform various classical and state-of-the-art federated learning methods designed for learning with non-IID data.

This is paper for the smooth function approximation by neural networks (NN). Mathematical or physical functions can be replaced by NN models through regression. In this study, we get NNs that generate highly accurate and highly smooth function, which only comprised of a few weight parameters, through discussing a few topics about regression. First, we reinterpret inside of NNs for regression; consequently, we propose a new activation function--integrated sigmoid linear unit (ISLU). Then special charateristics of metadata for regression, which is different from other data like image or sound, is discussed for improving the performance of neural networks. Finally, the one of a simple hierarchical NN that generate models substituting mathematical function is presented, and the new batch concept ``meta-batch" which improves the performance of NN several times more is introduced. The new activation function, meta-batch method, features of numerical data, meta-augmentation with metaparameters, and a structure of NN generating a compact multi-layer perceptron(MLP) are essential in this study.

Detecting abrupt changes in data distribution is one of the most significant tasks in streaming data analysis. Although many unsupervised Change-Point Detection (CPD) methods have been proposed recently to identify those changes, they still suffer from missing subtle changes, poor scalability, or/and sensitive to noise points. To meet these challenges, we are the first to generalise the CPD problem as a special case of the Change-Interval Detection (CID) problem. Then we propose a CID method, named iCID, based on a recent Isolation Distributional Kernel (IDK). iCID identifies the change interval if there is a high dissimilarity score between two non-homogeneous temporal adjacent intervals. The data-dependent property and finite feature map of IDK enabled iCID to efficiently identify various types of change points in data streams with the tolerance of noise points. Moreover, the proposed online and offline versions of iCID have the ability to optimise key parameter settings. The effectiveness and efficiency of iCID have been systematically verified on both synthetic and real-world datasets.

Time-series anomaly detection is an important task and has been widely applied in the industry. Since manual data annotation is expensive and inefficient, most applications adopt unsupervised anomaly detection methods, but the results are usually sub-optimal and unsatisfactory to end customers. Weak supervision is a promising paradigm for obtaining considerable labels in a low-cost way, which enables the customers to label data by writing heuristic rules rather than annotating each instance individually. However, in the time-series domain, it is hard for people to write reasonable labeling functions as the time-series data is numerically continuous and difficult to be understood. In this paper, we propose a Label-Efficient Interactive Time-Series Anomaly Detection (LEIAD) system, which enables a user to improve the results of unsupervised anomaly detection by performing only a small amount of interactions with the system. To achieve this goal, the system integrates weak supervision and active learning collaboratively while generating labeling functions automatically using only a few labeled data. All of these techniques are complementary and can promote each other in a reinforced manner. We conduct experiments on three time-series anomaly detection datasets, demonstrating that the proposed system is superior to existing solutions in both weak supervision and active learning areas. Also, the system has been tested in a real scenario in industry to show its practicality.

In robotics and computer vision communities, extensive studies have been widely conducted regarding surveillance tasks, including human detection, tracking, and motion recognition with a camera. Additionally, deep learning algorithms are widely utilized in the aforementioned tasks as in other computer vision tasks. Existing public datasets are insufficient to develop learning-based methods that handle various surveillance for outdoor and extreme situations such as harsh weather and low illuminance conditions. Therefore, we introduce a new large-scale outdoor surveillance dataset named eXtremely large-scale Multi-modAl Sensor dataset (X-MAS) containing more than 500,000 image pairs and the first-person view data annotated by well-trained annotators. Moreover, a single pair contains multi-modal data (e.g. an IR image, an RGB image, a thermal image, a depth image, and a LiDAR scan). This is the first large-scale first-person view outdoor multi-modal dataset focusing on surveillance tasks to the best of our knowledge. We present an overview of the proposed dataset with statistics and present methods of exploiting our dataset with deep learning-based algorithms. The latest information on the dataset and our study are available at https://github.com/lge-robot-navi, and the dataset will be available for download through a server.