In post-covid19 world, radio frequency (RF)-based non-contact methods, e.g., software-defined radios (SDR)-based methods have emerged as promising candidates for intelligent remote sensing of human vitals, and could help in containment of contagious viruses like covid19. To this end, this work utilizes the universal software radio peripherals (USRP)-based SDRs along with classical machine learning (ML) methods to design a non-contact method to monitor different breathing abnormalities. Under our proposed method, a subject rests his/her hand on a table in between the transmit and receive antennas, while an orthogonal frequency division multiplexing (OFDM) signal passes through the hand. Subsequently, the receiver extracts the channel frequency response (basically, fine-grained wireless channel state information), and feeds it to various ML algorithms which eventually classify between different breathing abnormalities. Among all classifiers, linear SVM classifier resulted in a maximum accuracy of 88.1\%. To train the ML classifiers in a supervised manner, data was collected by doing real-time experiments on 4 subjects in a lab environment. For label generation purpose, the breathing of the subjects was classified into three classes: normal, fast, and slow breathing. Furthermore, in addition to our proposed method (where only a hand is exposed to RF signals), we also implemented and tested the state-of-the-art method (where full chest is exposed to RF radiation). The performance comparison of the two methods reveals a trade-off, i.e., the accuracy of our proposed method is slightly inferior but our method results in minimal body exposure to RF radiation, compared to the benchmark method.

Pruning refers to the elimination of trivial weights from neural networks. The sub-networks within an overparameterized model produced after pruning are often called Lottery tickets. This research aims to generate winning lottery tickets from a set of lottery tickets that can achieve similar accuracy to the original unpruned network. We introduce a novel winning ticket called Cyclic Overlapping Lottery Ticket (COLT) by data splitting and cyclic retraining of the pruned network from scratch. We apply a cyclic pruning algorithm that keeps only the overlapping weights of different pruned models trained on different data segments. Our results demonstrate that COLT can achieve similar accuracies (obtained by the unpruned model) while maintaining high sparsities. We show that the accuracy of COLT is on par with the winning tickets of Lottery Ticket Hypothesis (LTH) and, at times, is better. Moreover, COLTs can be generated using fewer iterations than tickets generated by the popular Iterative Magnitude Pruning (IMP) method. In addition, we also notice COLTs generated on large datasets can be transferred to small ones without compromising performance, demonstrating its generalizing capability. We conduct all our experiments on Cifar-10, Cifar-100 & TinyImageNet datasets and report superior performance than the state-of-the-art methods.

Accurate recognition of food items along with quality assessment is of paramount importance in the agricultural industry. Such automated systems can speed up the wheel of the food processing sector and save tons of manual labor. In this connection, the recent advancement of Deep learning-based architectures has introduced a wide variety of solutions offering remarkable performance in several classification tasks. In this work, we have exploited the concept of Densely Connected Convolutional Neural Networks (DenseNets) for fruit quality assessment. The feature propagation towards the deeper layers has enabled the network to tackle the vanishing gradient problems and ensured the reuse of features to learn meaningful insights. Evaluating on a dataset of 19,526 images containing six fruits having three quality grades for each, the proposed pipeline achieved a remarkable accuracy of 99.67%. The robustness of the model was further tested for fruit classification and quality assessment tasks where the model produced a similar performance, which makes it suitable for real-life applications.

In this paper, we assess the viability of transformer models in end-to-end InfoSec settings, in which no intermediate feature representations or processing steps occur outside the model. We implement transformer models for two distinct InfoSec data formats - specifically URLs and PE files - in a novel end-to-end approach, and explore a variety of architectural designs, training regimes, and experimental settings to determine the ingredients necessary for performant detection models. We show that in contrast to conventional transformers trained on more standard NLP-related tasks, our URL transformer model requires a different training approach to reach high performance levels. Specifically, we show that 1) pre-training on a massive corpus of unlabeled URL data for an auto-regressive task does not readily transfer to binary classification of malicious or benign URLs, but 2) that using an auxiliary auto-regressive loss improves performance when training from scratch. We introduce a method for mixed objective optimization, which dynamically balances contributions from both loss terms so that neither one of them dominates. We show that this method yields quantitative evaluation metrics comparable to that of several top-performing benchmark classifiers. Unlike URLs, binary executables contain longer and more distributed sequences of information-rich bytes. To accommodate such lengthy byte sequences, we introduce additional context length into the transformer by providing its self-attention layers with an adaptive span similar to Sukhbaatar et al. We demonstrate that this approach performs comparably to well-established malware detection models on benchmark PE file datasets, but also point out the need for further exploration into model improvements in scalability and compute efficiency.

Skeleton-based Motion Capture (MoCap) systems have been widely used in the game and film industry for mimicking complex human actions for a long time. MoCap data has also proved its effectiveness in human activity recognition tasks. However, it is a quite challenging task for smaller datasets. The lack of such data for industrial activities further adds to the difficulties. In this work, we have proposed an ensemble-based machine learning methodology that is targeted to work better on MoCap datasets. The experiments have been performed on the MoCap data given in the Bento Packaging Activity Recognition Challenge 2021. Bento is a Japanese word that resembles lunch-box. Upon processing the raw MoCap data at first, we have achieved an astonishing accuracy of 98% on 10-fold Cross-Validation and 82% on Leave-One-Out-Cross-Validation by using the proposed ensemble model.

近年来，多个对象跟踪引起了研究人员的极大兴趣，它已成为计算机视觉中的趋势问题之一，尤其是随着自动驾驶的最新发展。 MOT是针对不同问题的关键视觉任务之一，例如拥挤的场景中的闭塞，相似的外观，小物体检测难度，ID切换等，以应对这些挑战，因为研究人员试图利用变压器的注意力机制，与田径的相互关系，与田径的相互关系，图形卷积神经网络，与暹罗网络不同帧中对象的外观相似性，他们还尝试了基于IOU匹配的CNN网络，使用LSTM的运动预测。为了将这些零散的技术在雨伞下采用，我们研究了过去三年发表的一百多篇论文，并试图提取近代研究人员更关注的技术来解决MOT的问题。我们已经征集了许多应用，可能性以及MOT如何与现实生活有关。我们的评论试图展示研究人员使用过时的技术的不同观点，并为潜在的研究人员提供了一些未来的方向。此外，我们在这篇评论中包括了流行的基准数据集和指标。

随着自动组件比例越来越多的新兴车辆系统提供了最佳控制的机会，以减轻交通拥堵和提高效率。最近有兴趣将深入增强学习（DRL）应用于这些非线性动力学系统，以自动设计有效的控制策略。尽管DRL是无模型的概念优势，但研究通常仍依赖于对特定车辆系统的艰苦训练设置。这是对各种车辆和机动性系统有效分析的关键挑战。为此，本文贡献了一种简化的用于车辆微仿真的方法，并以最少的手动设计发现了高性能控制策略。提出了一种可变的代理，多任务方法，以优化车辆部分观察到的马尔可夫决策过程。该方法在混合自治交通系统上进行了实验验证，该系统是自动化的。在六种不同的开放或封闭交通系统的所有配置中都可以观察到经验改进，通常比人类驾驶基线的15-60％。该研究揭示了许多紧急行为类似于缓解波浪，交通信号传导和坡道计量。最后，对新兴行为进行了分析，以产生可解释的控制策略，这些控制策略已通过学习的控制策略进行了验证。

Pansharpening使用高空间分辨率Panchromatic图像的特征增强了高光谱分辨率多光谱图像的空间细节。有许多传统的pansharpening方法，但是产生表现出高光谱和空间保真度的图像仍然是一个空旷的问题。最近，深度学习已被用来产生有希望的Pansharped图像。但是，这些方法中的大多数通过使用相同的网络进行特征提取，对多光谱和全球性图像都采用了类似的处理。在这项工作中，我们提出了一个新型的基于双重注意的两流网络。首先使用两个单独的网络进行两个图像的特征提取，这是一种具有注意机制的编码器，可重新校准提取的功能。接下来是融合的特征，形成喂入图像重建网络的紧凑表示形式以产生pansharped图像。使用标准定量评估指标和视觉检查的PL \'{E} IADES数据集的实验结果表明，就Pansharped图像质量而言，所提出的方法比其他方法更好。

由于对人工智能的大量解释，我们日常生活的各个领域都使用了机器学习技术。在世界上，在许多情况下，可以预防简单的犯罪，甚至可能发生或找到对此负责的人。面孔是我们拥有的一个独特特征，并且可以轻松区分许多其他物种。但是，不仅不同的物种，它在确定与我们同一物种的人的人类中也起着重要作用。关于这个关键功能，如今最常发生一个问题。当相机指向时，它无法检测到一个人的脸，并且变成了糟糕的图像。另一方面，在安装了抢劫和安全摄像头的地方，由于较低的摄像头，强盗的身份几乎无法区分。但是，仅制作出出色的算法来工作和检测面部就会降低硬件的成本，而专注于该领域的成本并不多。面部识别，小部件控制等可以通过正确检测到面部来完成。这项研究旨在创建和增强正确识别面孔的机器学习模型。总共有627个数据是从孟加拉国不同的四个天使的面孔中收集的。在这项工作中，CNN，Harr Cascade，Cascaded CNN，Deep CNN和MTCNN是实施的五种机器学习方法，以获得我们数据集的最佳准确性。创建和运行模型后，多任务卷积神经网络（MTCNN）通过培训数据而不是其他机器学习模型实现了96.2％的最佳模型精度。

由于超声图像中的成像伪影和低信噪比，自动骨表面分割网络通常会产生碎片的预测，从而阻碍超声引导的计算机辅助手术程序的成功。由于缺乏执行连通性的监督，现有的像素预测通常无法捕获骨组织的准确拓扑。在这项工作中，我们提出了一个定向引导的图形卷积网络，以改善连通性，同时分割骨表面。我们还提出了有关骨表面方向的额外监督，以进一步施加连通性。我们在1042 Vivo US扫描股骨，膝盖，脊柱和远端半径上验证了我们的方法。我们的方法将最新方法的连通性指标提高了5.01％。