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A microstrip-based sensor for glucose monitoring: towards non-invasive blood glucose detection

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Measurement 2025年 256卷

作者： Guodao Zhang Qiwen Zhang Chaochao Wang Xiaojun Ji Zhengqiu Weng Abdulilah Mohammad Mayet Xinjun Miao Institute of Intelligent Media Computing Hangzhou Dianzi University Hangzhou 310018 China Provincial Key Laboratory of Multimodal Perceiving and Intelligent Systems Jiaxing University Jiaxing 314000 China Shangyu Institute of Science and Engineering Co.Ltd. Hangzhou Dianzi University Shaoxing 312300 China Department of Cardiology Wenzhou Central Hospital Wenzhou 325000 China School of Data Science and Artificial Intelligence Wenzhou University of Technology Wenzhou 325000 China Electrical Engineering Department College of Engineering King Khalid University Abha Kingdom of Saudi Arabia Department of Emergency Wenzhou Central Hospital Wenzhou 325000 China

In this study, a microstrip sensor with U-shaped resonators was designed and developed for non-invasive blood glucose measurement. The sensor comprises five U-shaped resonators forming a microstrip circuit, transmitting in the frequency ranges of 2–2.3 GHz and 3.9–4.2 GHz. Glucose solutions with concentrations from 50 mg/dL to 500 mg/dL were prepared and placed in a 3D-printed PLA container for testing. Samples were positioned non-contact on the sensor, and frequency response changes up to 6 GHz were recorded. The sensor exhibited high sensitivity, measuring 1.50 MHz per mg/dL. Due to environmental susceptibilities and the relatively low repeatability of microstrip sensors, each sample was tested five times, yielding a total of 50 measurements. These recorded responses were processed using a multilayer perceptron (MLP) neural network, which predicted glucose concentrations with a mean relative error (MRE%) of less than 2.48 %. This research highlights the development of a highly sensitive, non-invasive glucose sensor integrated with a neural network, offering precise and rapid blood glucose measurements. This system holds promise as a valuable tool for managing diabetes and other blood glucose-related conditions.

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A smart urban flood control and warning system based on big data

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International Journal of Security and Networks 2018年第4期13卷 236-244页

作者： Chen, Guanlin Zhou, Zhikang Zheng, Rongxin Qi, Tongjun School of Computer and Computing Science Zhejiang University City College Hangzhou310015 China College of Computer Science and Technology Zhejiang University Hangzhou310027 China Hangzhou Municipal Bureau of Data Resources Management Hangzhou310016 China

With the great-leap-forward development of social economy in recent years, urban-scale has expanded rapidly and the problem of urban flood control has become more prominent. The normal flood control system has been unable to meet the requirement of rapid urban development. As the urban drainage facilities improve and the internet of things monitoring equipment increase, the big data era has come. Therefore, a smart urban flood control and warning system based on big data will be crucial. In this paper, a system named smart urban flood control and warning system (SUFCWS) based on big data is proposed. The system is composed of user login, flood control basic data entry, water level and rainfall data search, real-time display, statistical analysis and flood warning, which integrates J2EE platform, SSH2 (Spring+Struts2+Hibernate) framework, the bootstrap front-end development kit, highcharts graphics library and Baidu Maps API. Using GM(1, 1) algorithm of grey forecasting model and back propagation neural network algorithm, SUFCWS can give available early warning of potential urban flood. Copyright © 2018 Inderscience Enterprises Ltd.

关键词： Neural networks

Correction to: DVT: a recent review and a taxonomy for oral and maxillofacial visualization and tracking based augmented reality: image guided surgery

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Multimedia Tools and Applications 2023年第1期83卷 731-731页

作者： Alsadoon, Abeer AlSallami, Nada Rashid, Tarik A. Gosper, Jeffrey J. Prasad, P. W. C. Haddad, Sami School of Computing Mathematics and Engineering Charles Sturt University (CSU) Albury-Wodonga Australia School of Computer Data and Mathematical Sciences Western Sydney University (WSU) Sydney Australia Asia Pacific International College (APIC) Sydney Australia Computer Science Department Worcester State University (WSU) Worcester USA Computer Science and Engineering University of Kurdistan Hewler Erbil Iraq Department of Oral and Maxillofacial Services Greater Western Sydney Area Health Services Mount Druitt Australia Department of Oral and Maxillofacial Services Central Coast Area Health Gosford Australia

Minimizing Overheads of Checkpoints in Distributed Stream Processing Systems 7

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Minimizing Overheads of Checkpoints in Distributed Stream Pr...

7th IEEE International Conference on Cloud Networking, CloudNet 2018

作者： Muhammad Abrar Akber, Syed Chen, Hanhua Wang, Yonghui Jin, Hai School of Computer Science and Technology Huazhong University of Science and Technology Cluster and Grid Computing Lab Services Computing Technology and System Lab Big Data Technology and System Lab Wuhan430074 China

ISBN: (纸本)9781538668313

Failure occurrence in large-scale systems is inevitable, which makes the resilience a key challenge for modern systems. Checkpoints with rollback recovery is a well-known approach to provide fault tolerance in distributed systems. The checkpoint based fault tolerance approach periodically persists the application state to reliable storage, which serves as a recovery point in case of failure. These periodic checkpoints are not inline with the failure rate of the systems as many studies conclude that failure occurrence is not periodic. The optimal size of checkpoint interval is a crucial decision, which directly determines the checkpoint overheads. To minimize the checkpoint overheads, we propose to reduce the number of checkpoints during the application execution. We suggest reducing the number of checkpoints by successively increasing the checkpoint intervals. We consider the failure probability of the underlying infrastructure and iteratively increase the checkpoint intervals. The proposed checkpoint approach tailors the checkpoint initializing based on the failure probability. If failure probability is low, it increases the checkpoint interval, and eventually reduces the total number of checkpoints triggered during application timespan. Reducing the total number of checkpoints during application execution results in decreasing the checkpoint overheads. The experiment results show that the proposed checkpoint policy considerably reduces the checkpoint overheads as compared to periodic checkpoints. © 2018 IEEE.

关键词： Fault tolerance

Multi-label classification for biomedical literature: an overview of the BioCreative VII LitCovid Track for COVID-19 literature topic annotations

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arXiv 2022年

作者： Chen, Qingyu Allot, Alexis Leaman, Robert Islamaj, Rezarta Du, Jingcheng Fang, Li Wang, Kai Xu, Shuo Zhang, Yuefu Bagherzadeh, Parsa Bergler, Sabine Bhatnagar, Aakash Bhavsar, Nidhir Chang, Yung-Chun Lin, Sheng-Jie Tang, Wentai Zhang, Hongtong Tavchioski, Ilija Pollak, Senja Tian, Shubo Zhang, Jinfeng Otmakhova, Yulia Yepes, Antonio Jimeno Dong, Hang Wu, Honghan Dufour, Richard Labrak, Yanis Chatterjee, Niladri Tandon, Kushagri Laleye, Fréjus A.A. Rakotoson, Loïc Chersoni, Emmanuele Gu, Jinghang Friedrich, Annemarie Pujari, Subhash Chandra Chizhikova, Mariia Sivadasan, Naveen Saipradeep, V.G. Lu, Zhiyong National Center for Biotechnology Information National Library of Medicine National Institutes of Health MD United States School of Biomedical Informatics UT Health Texas United States Raymond G. Perelman Center for Cellular and Molecular Therapeutics Children's Hospital of Philadelphia Philadelphia United States Department of Pathology Laboratory Medicine University of Pennsylvania Perelman School of Medicine Philadelphia United States College of Economics and Management Beijing University of Technology Beijing China CLaC Labs Concordia University Montreal Canada Navrachana University Vadodara India Graduate Institute of Data Science Taipei Medical University Taipei Taiwan College of Computer Science and Technology Dalian University of Technology Dalian China Computer and Information Science University of Ljubljana Ljubljana Slovenia Jožef Stefan Institute Ljubljana Slovenia Department of Statistics Florida State University Tallahassee United States School of Computing and Information Systems University of Melbourne Melbourne Australia School of Computing Technologies RMIT University Melbourne Australia Centre for Medical Informatics Usher Institute University of Edinburgh Edinburgh United Kingdom Institute of Health Informatics University College London London United Kingdom LS2N Nantes University Nantes France LIA Avignon University Avignon France Department of Mathematics Indian Institute of Technology Delhi New Delhi India Opscidia Paris France Department of Chinese and Bilingual Studies The Hong Kong Polytechnic University Hong Kong Heidelberg University Heidelberg Germany Bosch Center for Artificial Intelligence Renningen Germany Universidad de Jaén Jaén Spain TCS Research Life Sciences Hyderabad India

The COVID-19 pandemic has been severely impacting global society since December 2019. The related findings such as vaccine and drug development have been reported in biomedical literature - at a rate of about 10,000 articles on COVID-19 per month. Such rapid growth significantly challenges manual curation and interpretation. For instance, LitCovid is a literature database of COVID-19-related articles in PubMed, which has accumulated more than 200,000 articles with millions of accesses each month by users worldwide. One primary curation task is to assign up to eight topics (e.g., Diagnosis and Treatment) to the articles in LitCovid. The annotated topics have been widely used for navigating the COVID literature, rapidly locating articles of interest, and other downstream studies. However, annotating the topics has been the bottleneck of manual curation. Despite the continuing advances in biomedical text mining methods, few have been dedicated to topic annotations in COVID-19 literature. To close the gap, we organized the BioCreative LitCovid track to call for a community effort to tackle automated topic annotation for COVID-19 literature. The BioCreative LitCovid dataset - consisting of over 30,000 articles with manually reviewed topics - was created for training and testing. It is one of the largest multi-label classification datasets in biomedical scientific literature. Nineteen teams worldwide participated and made 80 submissions in total. Most teams used hybrid systems based on transformers. The highest performing submissions achieved 0.8875, 0.9181, and 0.9394 for macro F1-score, micro F1-score, and instance-based F1-score, respectively. Notably, these scores are substantially higher (e.g., 12%, higher for macro F1-score) than the corresponding scores of the state-of-art multi-label classification method. The level of participation and results demonstrate a successful track and help close the gap between dataset curation and method development. The dataset is pub

关键词： COVID-19

Design and evaluation of a multi-domain trojan detection method on deep neural networks

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arXiv 2019年

作者： Gao, Yansong Kim, Yeonjae Doan, Bao Gia Zhang, Zhi Zhang, Gongxuan Nepal, Surya Ranasinghe, Damith C. Kim, Hyoungshick School of Computer Science and Engineering Nanjing University of Science and Technology China Data61 CSIRO Sydney Australia Department of Software College of Computing Sungkyunkwan University Korea Republic of School of Computer Science University of Adelaide Australia Department of Computer Science and Engineering College of Computing Sungkyunkwan University Korea Republic of

Trojan attacks on deep neural networks (DNNs) exploit a backdoor embedded in a DNN model to hijack any input with an attacker's chosen signature trigger. All emerging defence mechanisms are only validated on vision domain tasks (e.g., image classification) on 2D Convolutional Neural Network (CNN) model architectures;whether a defence mechanism is general across vision, text, and audio domain tasks remains unclear. This work corroborates a run-time Trojan detection method exploiting STRong Intentional Perturbation of inputs, is a multi-domain Trojan detection defence across Vision, Text and Audio domains-thus termed as STRIP-ViTA. Specifically, STRIP-ViTA is the first confirmed Trojan detection method that is demonstratively independent of both the task domain and model architectures. We have extensively evaluated the performance of STRIP-ViTA over: i) CIFAR10 and GTSRB datasets using 2D CNNs, and a public third party Trojaned model for vision tasks;ii) IMDB and consumer complaint datasets using both LSTM and 1D CNNs for text tasks;and speech command dataset using both 1D CNNs and 2D CNNs for audio tasks. Experimental results based on 28 tested Trojaned models demonstrate that STRIP-ViTA performs well across all nine architectures and five datasets. In general, STRIP-ViTA can effectively detect Trojan inputs with small false acceptance rate (FAR) with an acceptable preset false rejection rate (FRR). In particular, for vision tasks, we can always achieve a 0% FRR and FAR. By setting FRR to be 3%, average FAR of 1.1% and 3.55% are achieved for text and audio tasks, respectively. Moreover, we have evaluated and shown the effectiveness of STRIP-ViTA against a number of advanced backdoor attacks whilst other state-of-the-art methods lose effectiveness in front of one or all of these advanced backdoor attacks. Copyright © 2019, The Authors. All rights reserved.

关键词： Deep neural networks

Collaborative Three-Tier Architecture Non-contact Respiratory Rate Monitoring using Target Tracking and False Peaks Eliminating Algorithms

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arXiv 2020年

作者： Mo, Haimiao Ding, Shuai Yang, Shanlin Vasilakos, Athanasios V. Zheng, Xi The School of Management Hefei University of Technology Anhui Hefei23009 China The Key Laboratory of Process Optimization and Intelligent Decision-Making Ministry of Education China The National Engineering Laboratory of Big Data Distribution and Exchange Technologies China Grimstad Norway The College of Mathematics and Computer Science Fuzhou University Fuzhou350116 China The School of Computing Macquarie University Sydney Australia

Monitoring the respiratory rate is crucial for helping us identify respiratory disorders. Devices for conventional respiratory monitoring are inconvenient and scarcely available. Recent research has demonstrated the ability of non-contact technologies, such as photoplethysmography and infrared thermography, to gather respiratory signals from the face and monitor breathing. However, the current non-contact respiratory monitoring techniques have poor accuracy because they are sensitive to environmental influences like lighting and motion artifacts. Furthermore, frequent contact between users and the cloud in real-world medical application settings might cause service request delays and potentially the loss of personal data. We proposed a non-contact respiratory rate monitoring system with a cooperative three-layer design to increase the precision of respiratory monitoring and decrease data transmission latency. To reduce data transmission and network latency, our three-tier architecture layer-by-layer decomposes the computing tasks of respiration monitoring. Moreover, we improved the accuracy of respiratory monitoring by designing a target tracking algorithm and an algorithm for eliminating false peaks to extract high-quality respiratory signals. By gathering the data and choosing several regions of interest on the face, we were able to extract the respiration signal and investigate how different regions affected the monitoring of respiration. The results of the experiment indicate that when the nasal region is used to extract the respiratory signal, it performs experimentally best. Our approach performs better than rival approaches while transferring fewer data. © 2020, CC BY.

关键词： Edge computing

Rethinking Performance Estimation in Neural Architecture Search

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Rethinking Performance Estimation in Neural Architecture Sea...

Conference on Computer Vision and Pattern Recognition (CVPR)

作者： Xiawu Zheng Rongrong Ji Qiang Wang Qixiang Ye Zhenguo Li Yonghong Tian Qi Tian Department of Artificial Intelligence Media Analytics and Computing Lab School of Informatics Xiamen University China National Institute for Data Science in Health and Medicine Xiamen University Peng Cheng Laboratory Shenzhen China University of Chinese Academy of Sciences China Noah's Ark Lab Huawei Technologies Peking University

ISBN: (数字)9781728171685

ISBN: (纸本)9781728171692

Neural architecture search (NAS) remains a challenging problem, which is attributed to the indispensable and time-consuming component of performance estimation (PE). In this paper, we provide a novel yet systematic rethinking of PE in a resource constrained regime, termed budgeted PE (BPE), which precisely and effectively estimates the performance of an architecture sampled from an architecture space. Since searching an optimal BPE is extremely time-consuming as it requires to train a large number of networks for evaluation, we propose a Minimum Importance Pruning (MIP) approach. Given a dataset and a BPE search space, MIP estimates the importance of hyper-parameters using random forest and subsequently prunes the minimum one from the next iteration. In this way, MIP effectively prunes less important hyper-parameters to allocate more computational resource on more important ones, thus achieving an effective exploration. By combining BPE with various search algorithms including reinforcement learning, evolution algorithm, random search, and differentiable architecture search, we achieve 1, 000× of NAS speed up with a negligible performance drop comparing to the SOTA.

关键词： Computer architecture Estimation Microprocessors Training Optimization Search problems Learning (artificial intelligence)

A survey on graph processing accelerators: Challenges and opportunities

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arXiv 2019年

作者： Gui, Chuang-Yi Zheng, Long He, Bing-Sheng Liu, Cheng Chen, Xin-Yu Liao, Xiao-Fei Jin, Hai National Engineering Research Center for Big Data Technology and System Services Computing Technology and System Lab/Cluster and Grid Computing Lab School of Computer Science and Technology Huazhong University of Science and Technology Wuhan430074 China Institute of Computing Technology Chinese Academy of Sciences Beijing100190 China School of Computing National University of Singapore 117418 Singapore

Graph is a well known data structure to represent the associated relationships in a variety of applications, e.g., data science and machine learning. Despite a wealth of existing efforts on developing graph processing systems for improving the performance and/or energy efficiency on traditional architectures, dedicated hardware solutions, also referred to as graph processing accelerators, are essential and emerging to provide the benefits significantly beyond those pure software solutions can offer. In this paper, we conduct a systematical survey regarding the design and implementation of graph processing accelerator. Specifically, we review the relevant techniques in three core components toward a graph processing accelerator: preprocessing, parallel graph computation and runtime scheduling. We also examine the benchmarks and results in existing studies for evaluating a graph processing accelerator. Interestingly, we find that there is not an absolute winner for all three aspects in graph acceleration due to the diverse characteristics of graph processing and complexity of hardware configurations. We finially present to discuss several challenges in details, and to further explore the opportunities for the future research. Copyright © 2019, The Authors. All rights reserved.

关键词： Energy efficiency