Wearable sensor technology is revolutionizing several research fields, ranging from healthcare to fitness monitoring or biometric recognition, thanks to its many advantages against potential alternatives, such as non-...
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ISBN:
(数字)9783031666940
ISBN:
(纸本)9783031666933;9783031666940
Wearable sensor technology is revolutionizing several research fields, ranging from healthcare to fitness monitoring or biometric recognition, thanks to its many advantages against potential alternatives, such as non-invasiveness and long-term operation capabilities. In more detail, seismocardiography (SCG) and gyrocardiography (GCG) are emerging as useful tools for cardiovascular assessment, relying on inertial measurements of cardiac activity. However, the knowledge and confidence about these signals is still limited in many fields, including the medical one, where the use of electrical measurements, such as those obtained via electrocardiography (ECG), is largely preferred. this paper presents a pioneering study about the possibility of converting SCG and GCG data into ECG-like representations, withthe aim of expanding the applicability of inertial wearable sensors to scenarios where their characteristics could provide relevant benefits, yet there could still be the need to exploit knowledge regarding electrical heart activity measurements. In more detail, the effectiveness of recurrent neural networks (RNNs) in performing such task is here investigated. Extensive experimentation on a public dataset demonstrates the feasibility and efficacy of the proposed method in generating signals that significantly resemble the desired ECG data. the capability of the proposed approach in reproducing relevant characteristics of ECG signals in the created data is evaluated considering two potential real-world applications, regarding heart rate estimation and ECG-based biometric recognition.
Wireless sensornetworks composed of a huge number of sensor node withthe capability to sense, collect and process data in the physical environment. the sensors are usually battery-powered nodes which limit the netwo...
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ISBN:
(纸本)9781665487894
Wireless sensornetworks composed of a huge number of sensor node withthe capability to sense, collect and process data in the physical environment. the sensors are usually battery-powered nodes which limit the network lifespan. Due to energy constraints, the deployment of WSNs required sophisticated techniques to prolong the network operation. A clustering based routing algorithm named Low-Energy Adaptive Clustering Hierarchy (LEACH) is proposed as an energy effective solution. However, in LEACH, the power of nodes in the network is quickly depleted and decreases the life of the network due to the clusters headers that are randomly selected without taking into account the remaining power and the position of the nodes. the enhanced LEACH algorithm, named LEACH-Kmeans, is proposed where the improvement is done in cluster head selection process. LEACH-Kmeans makes use of K-means clustering calculation for choosing optimal cluster heads. A comparison among LEACH, and LEACH-Kmeans clustering has been done. Simulation result shows that LEACH-Kmeans protocol can reduce energy consumption and improve the network lifetime.
this research explores the utility of today's real-time picture processing for dynamic-characteristic-primarily based object monitoring. Notably, this painting proposes a novel tracking method that combines an act...
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In this paper, we have proposed an intelligent reflecting surface (IRS) assisted non-orthogonal multiple access (NOMA) communication networks to achieve better quality of service in terms of improved Ergodic capacity ...
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ISBN:
(纸本)9781665476478
In this paper, we have proposed an intelligent reflecting surface (IRS) assisted non-orthogonal multiple access (NOMA) communication networks to achieve better quality of service in terms of improved Ergodic capacity and low transmission power. the sum rate of users is maximized by optimizing the transmit vector and IRS reflecting vector, satisfying the IRS reflecting constraint and successive interference cancellation (SIC) decoding condition. Taylor approximation is used to tackle the non-convex optimization problem and is used to convert it into convex one using successive convex approximation. Finally, Convex Optimization tool (CVX) is used to solve this optimization by iterative algorithm, verified on MATLAB software. Simulation result depict that IRS assisted NOMA performs better, when compared with NOMA system.
In this paper, a novel particle tracking method is proposed to investigate the kinematics of Leighton Buzzard sand (LBS) particles exhibiting slight- and medium-level fragmentation by combining PointConv and PointNetL...
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Mobile Wireless sensor Network (MWSNs) is the collection of wireless mobile sensor nodes that are able to dynamically form a short-term network. Because of its dynamic nature, MWSN is self-configuring and obtaining th...
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the industry responsible for providing fresh fruits to the market plays a crucial role in ensuring the quality and safety of the produce. Classifying and grading the freshness of fruits is essential to maintain high s...
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ISBN:
(纸本)9798331528553
the industry responsible for providing fresh fruits to the market plays a crucial role in ensuring the quality and safety of the produce. Classifying and grading the freshness of fruits is essential to maintain high standards. the presence of harmful bacteria in fruits poses a significant threat to the global agriculture sector. Recently, there has been an increased awareness of the vulnerability of fruits to various diseases, adding economic pressure on the agriculture sector worldwide. To address this issue, the proposed system employs a combination of image processing algorithms and deep learning models to analyze the visual characteristics of fruits and accurately determine their freshness. Addressing the challenges associated with subjective visual judgment and time-consuming manual inspection, the research introduces a methodology termed Machine Learning Life Cycle (MLLC), comprising six distinct phases from data gathering to the test model. Utilizing a carefully curated dataset sourced from Kaggle, featuring fresh and rotten apples, oranges, and bananas, the research involves training and classification process diagrams and algorithm implementation covering image pre-processing and Convolutional Neural Network (CNN) based model training. Evaluation metrics, including classification reports and confusion matrices, reveal assessed performance across fruits, with bananas demonstrating the highest accuracy which is 85%. the research aims to develop a web-based deep learning system for fruit freshness detection but has a limitation in optimal feature segmentation using the Gray-Level Co-occurrence Matrix (GLCM) for fruit freshness detection. Challenges include selecting relevant features across diverse fruit images, potential overfitting with deep convolutional layers, and balancing model complexity with data availability. Future works should explore advanced feature extraction techniques, mitigate overfitting risks, and enhance user interface inclusivity through
Deep Graph Convolutional networks (GCNs) with multiple layers have been used for applications such as point cloud classification and semantic segmentation and achieved state-of-the-art results. However, they are compu...
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ISBN:
(数字)9781665495486
ISBN:
(纸本)9781665495486
Deep Graph Convolutional networks (GCNs) with multiple layers have been used for applications such as point cloud classification and semantic segmentation and achieved state-of-the-art results. However, they are computationally expensive and have a high run-time latency. In this paper, we propose AgileGCN, a novel framework to compress and accelerate deep GCN models with residual connections using structured pruning. Specifically, in each residual structure of a deep GCN, channel sampling and padding are applied to the input and output channels of a convolutional layer, respectively, to significantly reduce its floating point operations (FLOPs) and number of parameters. Experimental results on two benchmark point cloud datasets demonstrate that AgileGCN achieves significant FLOPs and parameters reduction while maintaining the performance of the unpruned models for both point cloud classification and segmentation.
Due to the widespread use in recent decades, wireless sensornetworks (WSNs) have emerged as a top research area. However, the dynamic reconfiguration of WSNs offers a significant hurdle due to the fact that conventio...
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