这项工作提出了基于差异自动编码器卷积编码器产生的特征的概率分类器的内核选择方法。特别是，开发的方法允许选择最相关的潜在变量子集。在拟议的实现中，每个潜在变量都是从与最后一个编码器的卷积层的单个内核相关的分布中取样的，因为为每个内核创建了个体分布。因此，在采样的潜在变量上选择相关功能使得可以执行内核选择，从而过滤非信息性特征和内核。这样的导致模型参数数量减少。评估包装器和过滤器方法以进行特征选择。第二个特别相关，因为它仅基于内核的分布。通过测量所有分布之间的kullback-leibler差异来评估，假设其分布更相似的内核可以被丢弃。该假设得到了证实，因为观察到最相似的内核不会传达相关信息，并且可以去除。结果，所提出的方法适用于开发用于资源约束设备的应用程序。

这项工作提出了一种用于概率分类器的新算法的Proboost。该算法使用每个训练样本的认知不确定性来确定最具挑战性/不确定的样本。然后，对于下一个弱学习者，这些样本的相关性就会增加，产生序列，该序列逐渐侧重于发现具有最高不确定性的样品。最后，将弱学习者的输出组合成分类器的加权集合。提出了三种方法来操纵训练集：根据弱学习者估计的不确定性，取样，过采样和加权训练样本。此外，还研究了有关集成组合的两种方法。本文所考虑的弱学习者是标准的卷积神经网络，而不确定性估计使用的概率模型则使用变异推理或蒙特卡洛辍学。在MNIST基准数据集上进行的实验评估表明，ProbOOST可以显着改善性能。通过评估这项工作中提出的相对可实现的改进，进一步强调了结果，该指标表明，只有四个弱学习者的模型导致该指标的改进超过12％（出于准确性，灵敏度或特异性），与没有探针的模型相比。

生物医学决策涉及来自不同传感器或来自不同信道的多个信号处理。在这两种情况下，信息融合发挥着重要作用。在脑电图循环交替模式中，在这项工作中进行了深度学习的脑电图通道的特征级融合。通过两个优化算法，即遗传算法和粒子群优化优化了频道选择，融合和分类程序。通过融合来自多个脑电图信道的信息来评估开发的方法，用于夜间胸癫痫和没有任何神经疾病的患者的患者，与其他艺术艺术的工作相比，这在显着更具挑战性。结果表明，两种优化算法都选择了一种具有类似特征级融合的可比结构，包括三个脑电图通道，这与帽协议一致，以确保多个通道的唤起帽检测。此外，两种优化模型在接收器的工作特性曲线下达到了0.82的一个区域，平均精度为77％至79％，这是在专业协议的上部范围内的结果。尽管数据集是困难的数据集，所提出的方法仍处于最佳状态的上层，并且具有困难的数据集，并且具有在不需要任何手动过程的情况下提供全自动分析的优点。最终，模型显示出抗噪声和有弹性的多声道损耗。

Advances in computer vision and machine learning techniques have led to significant development in 2D and 3D human pose estimation from RGB cameras, LiDAR, and radars. However, human pose estimation from images is adversely affected by occlusion and lighting, which are common in many scenarios of interest. Radar and LiDAR technologies, on the other hand, need specialized hardware that is expensive and power-intensive. Furthermore, placing these sensors in non-public areas raises significant privacy concerns. To address these limitations, recent research has explored the use of WiFi antennas (1D sensors) for body segmentation and key-point body detection. This paper further expands on the use of the WiFi signal in combination with deep learning architectures, commonly used in computer vision, to estimate dense human pose correspondence. We developed a deep neural network that maps the phase and amplitude of WiFi signals to UV coordinates within 24 human regions. The results of the study reveal that our model can estimate the dense pose of multiple subjects, with comparable performance to image-based approaches, by utilizing WiFi signals as the only input. This paves the way for low-cost, broadly accessible, and privacy-preserving algorithms for human sensing.

Periocular refers to the region of the face that surrounds the eye socket. This is a feature-rich area that can be used by itself to determine the identity of an individual. It is especially useful when the iris or the face cannot be reliably acquired. This can be the case of unconstrained or uncooperative scenarios, where the face may appear partially occluded, or the subject-to-camera distance may be high. However, it has received revived attention during the pandemic due to masked faces, leaving the ocular region as the only visible facial area, even in controlled scenarios. This paper discusses the state-of-the-art of periocular biometrics, giving an overall framework of its most significant research aspects.

Traditionally, data analysis and theory have been viewed as separate disciplines, each feeding into fundamentally different types of models. Modern deep learning technology is beginning to unify these two disciplines and will produce a new class of predictively powerful space weather models that combine the physical insights gained by data and theory. We call on NASA to invest in the research and infrastructure necessary for the heliophysics' community to take advantage of these advances.

Multi-class ensemble classification remains a popular focus of investigation within the research community. The popularization of cloud services has sped up their adoption due to the ease of deploying large-scale machine-learning models. It has also drawn the attention of the industrial sector because of its ability to identify common problems in production. However, there are challenges to conform an ensemble classifier, namely a proper selection and effective training of the pool of classifiers, the definition of a proper architecture for multi-class classification, and uncertainty quantification of the ensemble classifier. The robustness and effectiveness of the ensemble classifier lie in the selection of the pool of classifiers, as well as in the learning process. Hence, the selection and the training procedure of the pool of classifiers play a crucial role. An (ensemble) classifier learns to detect the classes that were used during the supervised training. However, when injecting data with unknown conditions, the trained classifier will intend to predict the classes learned during the training. To this end, the uncertainty of the individual and ensemble classifier could be used to assess the learning capability. We present a novel approach for novel detection using ensemble classification and evidence theory. A pool selection strategy is presented to build a solid ensemble classifier. We present an architecture for multi-class ensemble classification and an approach to quantify the uncertainty of the individual classifiers and the ensemble classifier. We use uncertainty for the anomaly detection approach. Finally, we use the benchmark Tennessee Eastman to perform experiments to test the ensemble classifier's prediction and anomaly detection capabilities.

This paper is about the design of an automated machine to cut turbot fish specimens. Machine vision is a key part of this project as it is used to compute a cutting curve for the specimen head. This task is impossible to be carried out by mechanical means. Machine vision is used to detect head boundary and a robot is used to cut the head. Binarization and mathematical morphology are used to detect fish boundary and this boundary is subsequently analyzed (using Hough transform and convex hull) to detect key points and thus defining the cutting curve. Afterwards, mechanical systems are used to slice fish to get an easy presentation for end consumer (as fish fillets than can be easily marketed and consumed).

Chatbots are expected to be knowledgeable across multiple domains, e.g. for daily chit-chat, exchange of information, and grounding in emotional situations. To effectively measure the quality of such conversational agents, a model-based automatic dialogue evaluation metric (ADEM) is expected to perform well across multiple domains. Despite significant progress, an ADEM that works well in one domain does not necessarily generalize to another. This calls for a dedicated network architecture for domain generalization. To tackle the multi-domain dialogue evaluation task, we propose a Panel of Experts (PoE), a multitask network that consists of a shared transformer encoder and a collection of lightweight adapters. The shared encoder captures the general knowledge of dialogues across domains, while each adapter specializes in one specific domain and serves as a domain expert. To validate the idea, we construct a high-quality multi-domain dialogue dataset leveraging data augmentation and pseudo-labeling. The PoE network is comprehensively assessed on 16 dialogue evaluation datasets spanning a wide range of dialogue domains. It achieves state-of-the-art performance in terms of mean Spearman correlation over all the evaluation datasets. It exhibits better zero-shot generalization than existing state-of-the-art ADEMs and the ability to easily adapt to new domains with few-shot transfer learning.

Early recognition of clinical deterioration (CD) has vital importance in patients' survival from exacerbation or death. Electronic health records (EHRs) data have been widely employed in Early Warning Scores (EWS) to measure CD risk in hospitalized patients. Recently, EHRs data have been utilized in Machine Learning (ML) models to predict mortality and CD. The ML models have shown superior performance in CD prediction compared to EWS. Since EHRs data are structured and tabular, conventional ML models are generally applied to them, and less effort is put into evaluating the artificial neural network's performance on EHRs data. Thus, in this article, an extremely boosted neural network (XBNet) is used to predict CD, and its performance is compared to eXtreme Gradient Boosting (XGBoost) and random forest (RF) models. For this purpose, 103,105 samples from thirteen Brazilian hospitals are used to generate the models. Moreover, the principal component analysis (PCA) is employed to verify whether it can improve the adopted models' performance. The performance of ML models and Modified Early Warning Score (MEWS), an EWS candidate, are evaluated in CD prediction regarding the accuracy, precision, recall, F1-score, and geometric mean (G-mean) metrics in a 10-fold cross-validation approach. According to the experiments, the XGBoost model obtained the best results in predicting CD among Brazilian hospitals' data.