Pareto Front Learning (PFL) was recently introduced as an effective approach to obtain a mapping function from a given trade-off vector to a solution on the Pareto front, which solves the multi-objective optimization (MOO) problem. Due to the inherent trade-off between conflicting objectives, PFL offers a flexible approach in many scenarios in which the decision makers can not specify the preference of one Pareto solution over another, and must switch between them depending on the situation. However, existing PFL methods ignore the relationship between the solutions during the optimization process, which hinders the quality of the obtained front. To overcome this issue, we propose a novel PFL framework namely \ourmodel, which employs a hypernetwork to generate multiple solutions from a set of diverse trade-off preferences and enhance the quality of the Pareto front by maximizing the Hypervolume indicator defined by these solutions. The experimental results on several MOO machine learning tasks show that the proposed framework significantly outperforms the baselines in producing the trade-off Pareto front.

药物误解是可能导致对患者造成不可预测后果的风险之一。为了减轻这种风险，我们开发了一个自动系统，该系统可以正确识别移动图像中的药丸的处方。具体来说，我们定义了所谓的药丸匹配任务，该任务试图匹配处方药中药丸所拍摄的药丸的图像。然后，我们提出了PIMA，这是一种使用图神经网络（GNN）和对比度学习来解决目标问题的新方法。特别是，GNN用于学习处方中文本框之间的空间相关性，从而突出显示带有药丸名称的文本框。此外，采用对比度学习来促进药丸名称的文本表示与药丸图像的视觉表示之间的跨模式相似性的建模。我们进行了广泛的实验，并证明PIMA在我们构建的药丸和处方图像的现实数据集上优于基线模型。具体而言，与其他基线相比，PIMA的准确性从19.09％提高到46.95％。我们认为，我们的工作可以为建立新的临床应用并改善药物安全和患者护理提供新的机会。

在现实世界应用中，联合学习（FL）遇到了两个挑战：（1）可伸缩性，尤其是应用于大型物联网网络时； （2）如何使用异质数据对环境进行健全。意识到第一个问题，我们旨在设计一个名为Full-Stack FL（F2L）的新型FL框架。更具体地说，F2L使用层次结构架构，使扩展FL网络可以访问而无需重建整个网络系统。此外，利用层次网络设计的优势，我们在全球服务器上提出了一种新的标签驱动知识蒸馏（LKD）技术来解决第二个问题。与当前的知识蒸馏技术相反，LKD能够训练学生模型，该模型由所有教师模型的良好知识组成。因此，我们提出的算法可以有效地提取区域数据分布（即区域汇总模型）的知识，以减少客户在使用非独立分布数据的FL系统下操作时客户模型之间的差异。广泛的实验结果表明：（i）我们的F2L方法可以显着提高所有全球蒸馏的总体FL效率，并且（ii）F2L随着全球蒸馏阶段的发生而迅速达到收敛性，而不是在每个通信周期中提高。

跨不同边缘设备（客户）局部数据的分布不均匀，导致模型训练缓慢，并降低了联合学习的准确性。幼稚的联合学习（FL）策略和大多数替代解决方案试图通过加权跨客户的深度学习模型来实现更多公平。这项工作介绍了在现实世界数据集中遇到的一种新颖的非IID类型，即集群键，其中客户组具有具有相似分布的本地数据，从而导致全局模型收敛到过度拟合的解决方案。为了处理非IID数据，尤其是群集串数据的数据，我们提出了FedDrl，这是一种新型的FL模型，它采用了深厚的强化学习来适应每个客户的影响因素（将用作聚合过程中的权重）。在一组联合数据集上进行了广泛的实验证实，拟议的FEDDR可以根据CIFAR-100数据集的平均平均为FedAvg和FedProx方法提高了有利的改进，例如，高达4.05％和2.17％。

随着人类生活中的许多实际应用，包括制造监控摄像机，分析和加工客户行为，许多研究人员都注明了对数字图像的面部检测和头部姿势估计。大量提出的深度学习模型具有最先进的准确性，如YOLO，SSD，MTCNN，解决了面部检测或HOPENET的问题，FSA-NET，用于头部姿势估计问题的速度。根据许多最先进的方法，该任务的管道由两部分组成，从面部检测到头部姿势估计。这两个步骤完全独立，不共享信息。这使得模型在设置中清除但不利用每个模型中提取的大部分特色资源。在本文中，我们提出了多任务净模型，具有利用从面部检测模型提取的特征的动机，将它们与头部姿势估计分支共享以提高精度。此外，随着各种数据，表示面部的欧拉角域大，我们的模型可以预测360欧拉角域的结果。应用多任务学习方法，多任务净模型可以同时预测人头的位置和方向。为了提高预测模型的头部方向的能力，我们将人脸从欧拉角呈现到旋转矩阵的载体。

头部姿势估计是一个具有挑战性的任务，旨在解决与预测三维向量相关的问题，这为人机互动或客户行为中的许多应用程序提供服务。以前的研究提出了一些用于收集头部姿势数据的精确方法。但这些方法需要昂贵的设备，如深度摄像机或复杂的实验室环境设置。在这项研究中，我们引入了一种新的方法，以有效的成本和易于设置，以收集头部姿势图像，即UET-HEADBETS数据集，具有顶视图头姿势数据。该方法使用绝对方向传感器而不是深度摄像机快速设置，但仍然可以确保良好的效果。通过实验，我们的数据集已显示其分发和可用数据集之间的差异，如CMU Panoptic DataSet \ Cite {CMU}。除了使用UET符号数据集和其他头部姿势数据集外，我们还介绍了称为FSANET的全范围模型，这显着优于UET-HEALPETS数据集的头部姿势估计结果，尤其是在顶视图上。此外，该模型非常重量轻，占用小尺寸图像。

In this work, we propose a new approach that combines data from multiple sensors for reliable obstacle avoidance. The sensors include two depth cameras and a LiDAR arranged so that they can capture the whole 3D area in front of the robot and a 2D slide around it. To fuse the data from these sensors, we first use an external camera as a reference to combine data from two depth cameras. A projection technique is then introduced to convert the 3D point cloud data of the cameras to its 2D correspondence. An obstacle avoidance algorithm is then developed based on the dynamic window approach. A number of experiments have been conducted to evaluate our proposed approach. The results show that the robot can effectively avoid static and dynamic obstacles of different shapes and sizes in different environments.

We introduce an approach for the answer-aware question generation problem. Instead of only relying on the capability of strong pre-trained language models, we observe that the information of answers and questions can be found in some relevant sentences in the context. Based on that, we design a model which includes two modules: a selector and a generator. The selector forces the model to more focus on relevant sentences regarding an answer to provide implicit local information. The generator generates questions by implicitly combining local information from the selector and global information from the whole context encoded by the encoder. The model is trained jointly to take advantage of latent interactions between the two modules. Experimental results on two benchmark datasets show that our model is better than strong pre-trained models for the question generation task. The code is also available (shorturl.at/lV567).

Machine Learning as a service (MLaaS) permits resource-limited clients to access powerful data analytics services ubiquitously. Despite its merits, MLaaS poses significant concerns regarding the integrity of delegated computation and the privacy of the server's model parameters. To address this issue, Zhang et al. (CCS'20) initiated the study of zero-knowledge Machine Learning (zkML). Few zkML schemes have been proposed afterward; however, they focus on sole ML classification algorithms that may not offer satisfactory accuracy or require large-scale training data and model parameters, which may not be desirable for some applications. We propose ezDPS, a new efficient and zero-knowledge ML inference scheme. Unlike prior works, ezDPS is a zkML pipeline in which the data is processed in multiple stages for high accuracy. Each stage of ezDPS is harnessed with an established ML algorithm that is shown to be effective in various applications, including Discrete Wavelet Transformation, Principal Components Analysis, and Support Vector Machine. We design new gadgets to prove ML operations effectively. We fully implemented ezDPS and assessed its performance on real datasets. Experimental results showed that ezDPS achieves one-to-three orders of magnitude more efficient than the generic circuit-based approach in all metrics while maintaining more desirable accuracy than single ML classification approaches.

Collecting large-scale medical datasets with fully annotated samples for training of deep networks is prohibitively expensive, especially for 3D volume data. Recent breakthroughs in self-supervised learning (SSL) offer the ability to overcome the lack of labeled training samples by learning feature representations from unlabeled data. However, most current SSL techniques in the medical field have been designed for either 2D images or 3D volumes. In practice, this restricts the capability to fully leverage unlabeled data from numerous sources, which may include both 2D and 3D data. Additionally, the use of these pre-trained networks is constrained to downstream tasks with compatible data dimensions. In this paper, we propose a novel framework for unsupervised joint learning on 2D and 3D data modalities. Given a set of 2D images or 2D slices extracted from 3D volumes, we construct an SSL task based on a 2D contrastive clustering problem for distinct classes. The 3D volumes are exploited by computing vectored embedding at each slice and then assembling a holistic feature through deformable self-attention mechanisms in Transformer, allowing incorporating long-range dependencies between slices inside 3D volumes. These holistic features are further utilized to define a novel 3D clustering agreement-based SSL task and masking embedding prediction inspired by pre-trained language models. Experiments on downstream tasks, such as 3D brain segmentation, lung nodule detection, 3D heart structures segmentation, and abnormal chest X-ray detection, demonstrate the effectiveness of our joint 2D and 3D SSL approach. We improve plain 2D Deep-ClusterV2 and SwAV by a significant margin and also surpass various modern 2D and 3D SSL approaches.