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Robust and Efficient Federated Learning for Machinery Fault Diagnosis in Internet of Things
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作者 Zhen Wu Hao Liu +4 位作者 Linlin Zhang Zehui Zhang Jie Wu Haibin He Bin Zhou 《Computers, Materials & Continua》 2026年第4期1051-1069,共19页
Recently,Internet ofThings(IoT)has been increasingly integrated into the automotive sector,enabling the development of diverse applications such as the Internet of Vehicles(IoV)and intelligent connected vehicles.Lever... Recently,Internet ofThings(IoT)has been increasingly integrated into the automotive sector,enabling the development of diverse applications such as the Internet of Vehicles(IoV)and intelligent connected vehicles.Leveraging IoVtechnologies,operational data fromcore vehicle components can be collected and analyzed to construct fault diagnosis models,thereby enhancing vehicle safety.However,automakers often struggle to acquire sufficient fault data to support effective model training.To address this challenge,a robust and efficient federated learning method(REFL)is constructed for machinery fault diagnosis in collaborative IoV,which can organize multiple companies to collaboratively develop a comprehensive fault diagnosis model while keeping their data locally.In the REFL,the gradient-based adversary algorithm is first introduced to the fault diagnosis field to enhance the deep learning model robustness.Moreover,the adaptive gradient processing process is designed to improve the model training speed and ensure the model accuracy under unbalance data scenarios.The proposed REFL is evaluated on non-independent and identically distributed(non-IID)real-world machinery fault dataset.Experiment results demonstrate that the REFL can achieve better performance than traditional learning methods and are promising for real industrial fault diagnosis. 展开更多
关键词 Federated learning adversary algorithm internet of Vehicles(IoV) fault diagnosis
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Scalable and Resilient AI Framework for Malware Detection in Software-Defined Internet of Things
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作者 Maha Abdelhaq Ahmad Sami Al-Shamayleh +2 位作者 Adnan Akhunzada Nikola Ivkovi´c Toobah Hasan 《Computers, Materials & Continua》 2026年第4期1307-1321,共15页
The rapid expansion of the Internet of Things(IoT)and Edge Artificial Intelligence(AI)has redefined automation and connectivity acrossmodern networks.However,the heterogeneity and limited resources of IoT devices expo... The rapid expansion of the Internet of Things(IoT)and Edge Artificial Intelligence(AI)has redefined automation and connectivity acrossmodern networks.However,the heterogeneity and limited resources of IoT devices expose them to increasingly sophisticated and persistentmalware attacks.These adaptive and stealthy threats can evade conventional detection,establish remote control,propagate across devices,exfiltrate sensitive data,and compromise network integrity.This study presents a Software-Defined Internet of Things(SD-IoT)control-plane-based,AI-driven framework that integrates Gated Recurrent Units(GRU)and Long Short-TermMemory(LSTM)networks for efficient detection of evolving multi-vector,malware-driven botnet attacks.The proposed CUDA-enabled hybrid deep learning(DL)framework performs centralized real-time detection without adding computational overhead to IoT nodes.A feature selection strategy combining variable clustering,attribute evaluation,one-R attribute evaluation,correlation analysis,and principal component analysis(PCA)enhances detection accuracy and reduces complexity.The framework is rigorously evaluated using the N_BaIoT dataset under k-fold cross-validation.Experimental results achieve 99.96%detection accuracy,a false positive rate(FPR)of 0.0035%,and a detection latency of 0.18 ms,confirming its high efficiency and scalability.The findings demonstrate the framework’s potential as a robust and intelligent security solution for next-generation IoT ecosystems. 展开更多
关键词 AI-driven malware analysis advanced persistent malware(APM) AI-poweredmalware detection deep learning(DL) malware-driven botnets software-defined internet of things(SD-IoT)
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The Internet of Things under Federated Learning:A Review of the Latest Advances and Applications 被引量:1
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作者 Jinlong Wang Zhenyu Liu +2 位作者 Xingtao Yang Min Li Zhihan Lyu 《Computers, Materials & Continua》 SCIE EI 2025年第1期1-39,共39页
With the rapid development of artificial intelligence,the Internet of Things(IoT)can deploy various machine learning algorithms for network and application management.In the IoT environment,many sensors and devices ge... With the rapid development of artificial intelligence,the Internet of Things(IoT)can deploy various machine learning algorithms for network and application management.In the IoT environment,many sensors and devices generatemassive data,but data security and privacy protection have become a serious challenge.Federated learning(FL)can achieve many intelligent IoT applications by training models on local devices and allowing AI training on distributed IoT devices without data sharing.This review aims to deeply explore the combination of FL and the IoT,and analyze the application of federated learning in the IoT from the aspects of security and privacy protection.In this paper,we first describe the potential advantages of FL and the challenges faced by current IoT systems in the fields of network burden and privacy security.Next,we focus on exploring and analyzing the advantages of the combination of FL on the Internet,including privacy security,attack detection,efficient communication of the IoT,and enhanced learning quality.We also list various application scenarios of FL on the IoT.Finally,we propose several open research challenges and possible solutions. 展开更多
关键词 Federated learning internet of Things SENSORS machine learning privacy security
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Lightweight consensus mechanisms in the Internet of Blockchained Things:Thorough analysis and research directions 被引量:1
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作者 Somia Sahraoui Abdelmalik Bachir 《Digital Communications and Networks》 2025年第4期1245-1260,共16页
The Internet of Things(IoT)has gained substantial attention in both academic research and real-world applications.The proliferation of interconnected devices across various domains promises to deliver intelligent and ... The Internet of Things(IoT)has gained substantial attention in both academic research and real-world applications.The proliferation of interconnected devices across various domains promises to deliver intelligent and advanced services.However,this rapid expansion also heightens the vulnerability of the IoT ecosystem to security threats.Consequently,innovative solutions capable of effectively mitigating risks while accommodating the unique constraints of IoT environments are urgently needed.Recently,the convergence of Blockchain technology and IoT has introduced a decentralized and robust framework for securing data and interactions,commonly referred to as the Internet of Blockchained Things(IoBT).Extensive research efforts have been devoted to adapting Blockchain technology to meet the specific requirements of IoT deployments.Within this context,consensus algorithms play a critical role in assessing the feasibility of integrating Blockchain into IoT ecosystems.The adoption of efficient and lightweight consensus mechanisms for block validation has become increasingly essential.This paper presents a comprehensive examination of lightweight,constraint-aware consensus algorithms tailored for IoBT.The study categorizes these consensus mechanisms based on their core operations,the security of the block validation process,the incorporation of AI techniques,and the specific applications they are designed to support. 展开更多
关键词 Blockchain internet of Things Lightweight consensus
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A blockchain and internet of things‑based information infrastructure for the Chinese automotive sector carbon‑credit market
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作者 Yanchu Liu Yu Zhang Duosi Zheng 《Financial Innovation》 2025年第1期822-864,共43页
In 2021,12 fraudulent cases were identified in the Chinese carbon market.As a critical component of this emerging market,China’s carbon-credit scheme in the automotive sector faces several shortcomings,including info... In 2021,12 fraudulent cases were identified in the Chinese carbon market.As a critical component of this emerging market,China’s carbon-credit scheme in the automotive sector faces several shortcomings,including informational opacity and operational inefficiency,which affect market functionality and fairness.This study develops an information system that integrates blockchain technology and the Internet of Things to manage a carbon-credit scheme.Specifically,we attached carbon credits to each vehicle with radio frequency identification electronic tags and a chained data structure to ensure the traceability and reliability of information flow.We use the distributed ledger technology and establish five distinct types of smart contracts for decentralized operations to ensure that all procedures of the Chinese carboncredit scheme are standardized and under public scrutiny.The proposed infrastructure has the potential to significantly enhance the transparency and efficiency of China’s carbon-credit schemes. 展开更多
关键词 Carbon credit Blockchain internet of things Information system
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Application Research of Wireless Sensor Networks and the Internet of Things 被引量:1
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作者 Changjian Lv Rui Wang Man Zhao 《Journal of Electronic Research and Application》 2025年第4期283-289,共7页
In the context of the rapid iteration of information technology,the Internet of Things(IoT)has established itself as a pivotal hub connecting the digital world and the physical world.Wireless Sensor Networks(WSNs),dee... In the context of the rapid iteration of information technology,the Internet of Things(IoT)has established itself as a pivotal hub connecting the digital world and the physical world.Wireless Sensor Networks(WSNs),deeply embedded in the perception layer architecture of the IoT,play a crucial role as“tactile nerve endings.”A vast number of micro sensor nodes are widely distributed in monitoring areas according to preset deployment strategies,continuously and accurately perceiving and collecting real-time data on environmental parameters such as temperature,humidity,light intensity,air pressure,and pollutant concentration.These data are transmitted to the IoT cloud platform through stable and reliable communication links,forming a massive and detailed basic data resource pool.By using cutting-edge big data processing algorithms,machine learning models,and artificial intelligence analysis tools,in-depth mining and intelligent analysis of these multi-source heterogeneous data are conducted to generate high-value-added decision-making bases.This precisely empowers multiple fields,including agriculture,medical and health care,smart home,environmental science,and industrial manufacturing,driving intelligent transformation and catalyzing society to move towards a new stage of high-quality development.This paper comprehensively analyzes the technical cores of the IoT and WSNs,systematically sorts out the advanced key technologies of WSNs and the evolution of their strategic significance in the IoT system,deeply explores the innovative application scenarios and practical effects of the two in specific vertical fields,and looks forward to the technological evolution trends.It provides a detailed and highly practical guiding reference for researchers,technical engineers,and industrial decision-makers. 展开更多
关键词 Wireless Sensor Networks internet of Things Key technologies Application fields
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HybridEdge: A Lightweight and Secure Hybrid Communication Protocol for the Edge-Enabled Internet of Things
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作者 Amjad Khan Rahim Khan +1 位作者 Fahad Alturise Tamim Alkhalifah 《Computers, Materials & Continua》 2025年第2期3161-3178,共18页
The Internet of Things (IoT) and edge-assisted networking infrastructures are capable of bringing data processing and accessibility services locally at the respective edge rather than at a centralized module. These in... The Internet of Things (IoT) and edge-assisted networking infrastructures are capable of bringing data processing and accessibility services locally at the respective edge rather than at a centralized module. These infrastructures are very effective in providing a fast response to the respective queries of the requesting modules, but their distributed nature has introduced other problems such as security and privacy. To address these problems, various security-assisted communication mechanisms have been developed to safeguard every active module, i.e., devices and edges, from every possible vulnerability in the IoT. However, these methodologies have neglected one of the critical issues, which is the prediction of fraudulent devices, i.e., adversaries, preferably as early as possible in the IoT. In this paper, a hybrid communication mechanism is presented where the Hidden Markov Model (HMM) predicts the legitimacy of the requesting device (both source and destination), and the Advanced Encryption Standard (AES) safeguards the reliability of the transmitted data over a shared communication medium, preferably through a secret shared key, i.e., , and timestamp information. A device becomes trusted if it has passed both evaluation levels, i.e., HMM and message decryption, within a stipulated time interval. The proposed hybrid, along with existing state-of-the-art approaches, has been simulated in the realistic environment of the IoT to verify the security measures. These evaluations were carried out in the presence of intruders capable of launching various attacks simultaneously, such as man-in-the-middle, device impersonations, and masquerading attacks. Moreover, the proposed approach has been proven to be more effective than existing state-of-the-art approaches due to its exceptional performance in communication, processing, and storage overheads, i.e., 13%, 19%, and 16%, respectively. Finally, the proposed hybrid approach is pruned against well-known security attacks in the IoT. 展开更多
关键词 internet of Things information security AUTHENTICATION hidden Markov model MULTIMEDIA
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Design of Campus IT Operation and Maintenance System Combining Artificial Intelligence and Internet of Things
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作者 Hanpu Yu 《信息工程期刊(中英文版)》 2025年第2期11-20,共10页
The integration of Artificial Intelligence (AI) and Internet of Things (IoT), known as AIoT, presents a transformative framework for modernizing campus IT operation and maintenance. This paper details the design of a ... The integration of Artificial Intelligence (AI) and Internet of Things (IoT), known as AIoT, presents a transformative framework for modernizing campus IT operation and maintenance. This paper details the design of a hierarchical AIoT architecture that leverages edge computing for real-time decision-making and cloud analytics for long-term optimization, achieving a higher system availability while reducing data transmission costs. The proposed system addresses critical challenges in traditional campus management such as energy inefficiency, reactive maintenance, and resource underutilization through intelligent applications like predictive resource allocation and environmental control. Furthermore, the design incorporates a robust, AI-driven cybersecurity framework and intelligent data processing paradigms, such as federated learning, which enhance maintenance efficiency and reduce false alarms. The transition to an AIoT-enabled campus is not merely a technological upgrade but a strategic shift towards a predictive, efficient, and sustainable operational model, fundamentally enhancing the management of university infrastructures. 展开更多
关键词 Artificial Intelligence internet of Things(IoT) AI-driven Information Technology CYBERSECURITY
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Effects of the“Internet+”nursing model based on user profilingon postoperative recovery in breast cancer:A prospective randomized controlled clinical trial 被引量:1
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作者 Xiuyuan Xie Yuanfang Ren +8 位作者 Jia Yao Yujie Fei Fenghe Liu Qian Tong Juanjuan Huang Meihong Kou Cuifeng Jin Weijuan Yang Haiping Xu 《International Journal of Nursing Sciences》 2025年第4期361-368,I0003,I0004,共10页
Objectives:This study aimed to explore the effectiveness and advantages of an“Internet+”nursing model based on user profilingin the rehabilitation of postoperative breast cancer patients.Methods:Breast cancer patien... Objectives:This study aimed to explore the effectiveness and advantages of an“Internet+”nursing model based on user profilingin the rehabilitation of postoperative breast cancer patients.Methods:Breast cancer patients admitted to the hospital from July 2023 to September 2024 were enrolled.These patients were randomly assigned to a control group and an intervention group,with 52 patients in each group.The control group received routine nursing care,while the intervention group received an“Internet+”nursing intervention based on user profilingin addition to routine care.The intervention period lasted for one month following discharge.Before and one month after the intervention,the Fear of Progression Questionnaire-Short Form(FOP-Q-SF),the Fear of Cancer Recurrence Inventory-Short Form(FCRI-SF),Chinese Posttraumatic Growth Inventory(C-PTGI),and the Functional Assessment of Cancer Therapy-Breast(FACT-B)were applied to assess the effects of interventions.Results:A total of 104 patients were analyzed.After the intervention,FOP-Q-SF and FCRI-SF scores were significantlylower in the intervention group compared to the control group,with statistical significance(t=3.98,P<0.001;t=-7.59,P<0.001),and Cohen’s d of 0.781 and 1.49,respectively.Additionally,CPTGI and FACT-B scores in the intervention group were significantly higher than those in the control group(t=-6.534,P<0.001;t=-4.579,P<0.001),with Cohen’s d of 0.585 and 0.656.Conclusions:An“Internet+”nursing model based on user profilingcould reduce postoperative breast cancer patients fear of disease progression and cancer recurrence,also enhancing posttraumatic growth and overall quality of life. 展开更多
关键词 User profiling internet+ Breast cancer Fear of disease progression Fear of cancer recurrence Post-traumatic growth Quality of life
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Research on the Application of Brand Personality in Internet-Branding of Agriculture Products in China
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作者 Kechao Wu Qingyun Meng Yun He 《Proceedings of Business and Economic Studies》 2025年第3期21-30,共10页
China is a fast-developing nation,especially in traditional concepts of emphasis on agricultural production,with millions of highly educated college students as new generations of workers enter the workforce,while pro... China is a fast-developing nation,especially in traditional concepts of emphasis on agricultural production,with millions of highly educated college students as new generations of workers enter the workforce,while promoting the booming agriculture industry in China.Concerning these new generations of ambitious college students,it is a pretty attractive career to leverage their knowledge to spread their local special rural agricultural products(agri-products)to well-known places around the nation,even the world.Meanwhile,the Chinese government also supports rural products branding via internet marketing as well as the exploitation of online technologies.Su et al.pointed out that governments in China are expected to take more effective measures to enhance adoption rates of online purchases and sales technology,in particular for entrepreneurial farmers[1].Currently,the most existing phenomenon in China is that quantities of regional rural products with excellent quality but without national popularity.Thereby,it is significant to enhance the popularity of various brands in regional agricultural products using internet marketing,and also contribute to the nation’s strategy of rural revitalization.To appeal to the nations’strategy,we are supposed to make use of brand personality(BP)traits,which probably contribute to robust internet branding of regional agricultural products.Our research will focus on the influences of differential dimensions of brand personality(BP)in terms of common rural products,additionally,we also attempt to design a BP model for internet branding of agricultural products in China.Furthermore,from the two perspectives of characteristics in rural areas(agricultural producers and agricultural consumers),measures to assist agricultural producers in building their brands through the application of internet tools and marketing should be recognized.On the other side,methods to enhance agricultural consumers’brand loyalty also need to be captured. 展开更多
关键词 Agricultural products internet marketing internet branding Brand personality(BP) Consumers’brand loyalty
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Association between the subclinical level of problematic internet use and habenula volume:a look at mediation effect of neuroticism
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作者 Halwa Zakia Yusuke Kyuragi +6 位作者 Qi Dai Naoya Oishi Yuzuki Ishikawa Lichang Yao Morio Aki Toshiya Murai Hironobu Fujiwara 《General Psychiatry》 2025年第1期26-34,共9页
Background Ongoing debates question the harm of internet use with the evolving technology,as many individuals transition from regular to problematic internet use(PIU).The habenula(Hb),located between the thalamus and ... Background Ongoing debates question the harm of internet use with the evolving technology,as many individuals transition from regular to problematic internet use(PIU).The habenula(Hb),located between the thalamus and the third ventricle,is implicated in various psychiatric disorders.In addition,personality features have been suggested to play a role in the pathophysiology of PIU.Aims This study aimed to investigate Hb volumetry in individuals with subclinical PIU and the mediating effect of personality traits on this relationship.Methods 110 healthy adults in this cross-sectional study underwent structural magnetic resonance imaging.Hb segmentation was performed using a deep learning technique.The Internet Addiction Test(IAT)and the NEO Five-Factor Inventory were used to assess the PIU level and personality,respectively.Partial Spearman's correlation analyses were performed to explore the reiationships between Hb volumetry,IAT and NEO.Multiple regression analysis was applied to identify personality traits that predict IAT scores.The significant trait was then treated as a mediator between Hb volume and IAT correlation in mediation analysis with a bootstrap value of 5000.Results Relative Hb volume was negatively correlated with IAT scores(partial rho=-0.142,p=0.009).The IAT score was positively correlated with neuroticism(partial rho=0.430,p<0.001)and negatively correlated with extraversion,agreeableness and conscientiousness(partial rho=-0.213,p<0.001;partial rho=-0.279,p<0.001;and partial rho=-0.327,p<0.001).There was a significant indirect effect of Hb volume on this model(β=-0.061,p=0.048,boot 95%confidence interval:-0.149 to-0.001).Conclusions This study uncovered a crucial link between reduced Hb volume and heightened PIU.Our findings highlight neuroticism as a key risk factor for developing PIU.Moreover,neuroticism was shown to mediate the relationship between Hb volume and PIU tendency,offering valuable insight into the complexities of this interaction. 展开更多
关键词 internet use piu hb volumetry Mediation Effect Habenula Volume NEUROTICISM personality traits Subclinical Level Problematic internet Use
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Analysis on the Path of Teaching Reform of Floriculture Course in Colleges and Universities under the Background of“Internet+”
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作者 Hongguang Bao Wei Zhang Hongxia Zhao 《Journal of Contemporary Educational Research》 2025年第9期68-73,共6页
With the in-depth reform of labor education,the teaching of the Floriculture course in colleges and universities should be further optimized.Teachers need to actively introduce new educational concepts and teaching me... With the in-depth reform of labor education,the teaching of the Floriculture course in colleges and universities should be further optimized.Teachers need to actively introduce new educational concepts and teaching methods to better arouse college students’interest,strengthen their understanding and application of the knowledge they have learned,and improve the effect of talent cultivation.As a popular educational auxiliary tool at present,Internet technology can greatly enrich the content of the Floriculture course teaching in colleges and universities,expand the path of talent cultivation,and play a significant role in promoting the all-round development of college students.In view of this,this paper will analyze the teaching reform of the Floriculture course in colleges and universities under the background of“Internet+”and put forward some strategies,which are only for reference by colleagues. 展开更多
关键词 internet+ Colleges and universities FLORICULTURE Teaching reform
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Security Challenges and Analysis Tools in Internet of Health Things:A Comprehensive Review
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作者 Enas W.Abood Ali A.Yassin +4 位作者 Zaid Ameen Abduljabbar Vincent Omollo Nyangaresi Iman Qays Abduljaleel Abdulla J.Y.Aldarwish Husam A.Neamah 《Computers, Materials & Continua》 2025年第11期2305-2345,共41页
The digital revolution era has impacted various domains,including healthcare,where digital technology enables access to and control of medical information,remote patient monitoring,and enhanced clinical support based ... The digital revolution era has impacted various domains,including healthcare,where digital technology enables access to and control of medical information,remote patient monitoring,and enhanced clinical support based on the Internet of Health Things(IoHTs).However,data privacy and security,data management,and scalability present challenges to widespread adoption.This paper presents a comprehensive literature review that examines the authentication mechanisms utilized within IoHT,highlighting their critical roles in ensuring secure data exchange and patient privacy.This includes various authentication technologies and strategies,such as biometric and multifactor authentication,as well as the influence of emerging technologies like blockchain,fog computing,and Artificial Intelligence(AI).The findings indicate that emerging technologies offer hope for the future of IoHT security,promising to address key challenges such as scalability,integrity,privacy and other security requirements.With this systematic review,healthcare providers,decision makers,scientists and researchers are empowered to confidently evaluate the applicability of IoT in healthcare,shaping the future of this field. 展开更多
关键词 internet of health things AUTHENTICATION PRIVACY fog-computing blockchain AI
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Internet altruistic behavior and subjective well-being among Chinese college students:A cross-lagged analysis
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作者 Huiping Chen Xianliang Zheng Anguo Fu 《Journal of Psychology in Africa》 2025年第3期403-409,共7页
We explored the relationship between Internet altruistic behavior(IAB)and subjective well-being(SWB)to estimate the effects and directionality of that predictive relationship between the two.Employing cross-lagged mod... We explored the relationship between Internet altruistic behavior(IAB)and subjective well-being(SWB)to estimate the effects and directionality of that predictive relationship between the two.Employing cross-lagged models we examined the interaction between IAB and SWB,among 339 college students(females=53.10%,mean age=19.02 years,SD=1.56 years).The students were tracked twice in a period of 5 months.Results showed that college students’IAB increased significantly,while their SWB remained relatively stable during the two measurement periods.IAB and SWB had significant simultaneous and sequential correlations.SWB at Time 1 positively predicted IAB at Time 2,however,IAB at Time 1 did not significantly predict SWB at Time 2.Moreover,there was cross-gender invariance in the cross-lagged effect between IAB and SWB.Research topics in the current environment exhibit remarkable practical significance. 展开更多
关键词 internet altruistic behavior subjective well-being cross-lagged analysis college students
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Psychological education in higher education: Opportunities and challenges in the Internet+ era
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作者 Hong-Ying Zhang Yang Yu 《World Journal of Psychiatry》 2025年第5期20-26,共7页
In the context of"Internet+,"the rapid development and integration of infor-mation technology in China have brought new opportunities and challenges to psychological education in higher education.Compared wi... In the context of"Internet+,"the rapid development and integration of infor-mation technology in China have brought new opportunities and challenges to psychological education in higher education.Compared with traditional psycho-logical education,the high information throughput and multichannel presentation of"Internet+"have altered students’cognitive characteristics.Consequently,traditional psychological education methods are no longer suitable for the current environment,and education methods pose new challenges for higher education.New media technologies within the"Internet+"framework have played a crucial role in psychological education.Further research is needed to explore new applic-ations for enhancing the quality of psychological education in higher education institutions.This paper reviews the current opportunities and challenges faced by psychological education in the context of"Internet+",and explores a mechanism-driven,collaborative,and efficient educational strategy that is responsive to new conditions. 展开更多
关键词 internet+ Psychological education Higher education New media techno-logies Educational strategy
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Cost and Time Optimization of Cloud Services in Arduino-Based Internet of Things Systems for Energy Applications
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作者 Reza Nadimi Maryam Hashemi Koji Tokimatsu 《Journal on Internet of Things》 2025年第1期49-69,共21页
Existing Internet of Things(IoT)systems that rely on Amazon Web Services(AWS)often encounter inefficiencies in data retrieval and high operational costs,especially when using DynamoDB for large-scale sensor data.These... Existing Internet of Things(IoT)systems that rely on Amazon Web Services(AWS)often encounter inefficiencies in data retrieval and high operational costs,especially when using DynamoDB for large-scale sensor data.These limitations hinder the scalability and responsiveness of applications such as remote energy monitoring systems.This research focuses on designing and developing an Arduino-based IoT system aimed at optimizing data transmission costs by concentrating on these services.The proposed method employs AWS Lambda functions with Amazon Relational Database Service(RDS)to facilitate the transmission of data collected from temperature and humidity sensors to the RDS database.In contrast,the conventional method utilizes AmazonDynamoDB for storing the same sensor data.Data were collected from 01 April 2022,to 26 August 2022,in Tokyo,Japan,focusing on temperature and relative humiditywitha resolutionof oneminute.The efficiency of the twomethods—conventional andproposed—was assessed in terms of both time and cost metrics,with a particular focus on data retrieval.The conventional method exhibited linear time complexity,leading to longer data retrieval times as the dataset grew,mainly due to DynamoDB’s pagination requirements and the parsing of payload data during the reading process.In contrast,the proposed method significantly reduced retrieval times for larger datasets by parsing payload data before writing it to the RDS database.Cost analysis revealed a savings of$1.56 per month with the adoption of the proposed approach for a 20-gigabyte database. 展开更多
关键词 Arduino-based internet of things internet of things-based solar energy system Amazon web service Amazon web service data retrieval Amazon web service lambda Amazon relational database service DynamoDB
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Defending Against Jamming and Interference for Internet of UAVs Using Cooperative Multi-Agent Reinforcement Learning with Mutual Information
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作者 Lin Yan Wu Zhijuan +4 位作者 Peng Nuoheng Zhao Tianyu Zhang Yijin Shu Feng Li Jun 《China Communications》 2025年第5期220-237,共18页
The Internet of Unmanned Aerial Vehicles(I-UAVs)is expected to execute latency-sensitive tasks,but limited by co-channel interference and malicious jamming.In the face of unknown prior environmental knowledge,defendin... The Internet of Unmanned Aerial Vehicles(I-UAVs)is expected to execute latency-sensitive tasks,but limited by co-channel interference and malicious jamming.In the face of unknown prior environmental knowledge,defending against jamming and interference through spectrum allocation becomes challenging,especially when each UAV pair makes decisions independently.In this paper,we propose a cooperative multi-agent reinforcement learning(MARL)-based anti-jamming framework for I-UAVs,enabling UAV pairs to learn their own policies cooperatively.Specifically,we first model the problem as a modelfree multi-agent Markov decision process(MAMDP)to maximize the long-term expected system throughput.Then,for improving the exploration of the optimal policy,we resort to optimizing a MARL objective function with a mutual-information(MI)regularizer between states and actions,which can dynamically assign the probability for actions frequently used by the optimal policy.Next,through sharing their current channel selections and local learning experience(their soft Q-values),the UAV pairs can learn their own policies cooperatively relying on only preceding observed information and predicting others’actions.Our simulation results show that for both sweep jamming and Markov jamming patterns,the proposed scheme outperforms the benchmarkers in terms of throughput,convergence and stability for different numbers of jammers,channels and UAV pairs. 展开更多
关键词 anti-jamming communication internet of UAVs multi-agent reinforcement learning spectrum allocation
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Effect of Internet Plus-based postpartum healthcare services on postpartum depression of primipara and growth and development of neonates
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作者 Ting-Ting Wu Wei-Ying Shen +3 位作者 Li-Hui Chen Bing-Lin Cao Chao-Ying Xu Yue Fang 《World Journal of Psychiatry》 2025年第11期222-230,共9页
BACKGROUND First-time mothers may encounter various problems during postpartum,which can result in negative emotions that can affect infant care.In today’s Internet era,continuous nursing services can be provided to ... BACKGROUND First-time mothers may encounter various problems during postpartum,which can result in negative emotions that can affect infant care.In today’s Internet era,continuous nursing services can be provided to mothers and their babies after delivery through Internet-based platforms.This approach can help reduce negative emotions of primiparas and promote better health for both mothers and babies.AIM To explore the effect of Internet Plus-based postpartum healthcare services on postpartum depression of primiparas and neonatal growth and development and thus provide a scientific basis for strengthening postpartum healthcare measures and better protect maternal and child health.METHODS The study retrospectively collected data of primiparas and their newborns who underwent prenatal examination and successfully delivered at the Ninth People’s Hospital of Suzhou City.The observation group included 30 primiparas and their newborns who received Internet Plus-based postpartum healthcare services between July and December 2024.According to the principle of matching(1:1)control study,the control group included 30 primiparas and their newborns who received routine postpartum healthcare services between January and June 2024.The maternal role adaptation questionnaire scores,breastfeeding rates,Edinburgh postnatal depression scale(EPDS)scores,and newborn growth and development(height,head circumference,and weight)were compared between the two groups at the time of discharge after delivery and 6-week postpartum follow-up.RESULTS Upon hospital discharge,the two groups did not demonstrate significant differences in maternal role adaptation scores,breastfeeding rates,EPDS scores,as well as newborn height,head circumference,and weight at birth(P>0.05).At the 6-week postpartum follow-up,the maternal role adaptation score and breastfeeding rate were higher in the observation group than in the control group(P<0.05).In addition,one case of postpartum depression was reported in the observation group and eight in the control group.Moreover,the control group exhibited a significant increase in EPDS scores compared with scores at hospital discharge(P<0.05),whereas the observation group showed only a marginal,nonsignificant increase in EPDS scores(P>0.05).The EPDS score of the observation group was significantly lower than that of the control group(P<0.05),indicating a lower risk of postpartum depression in the observation group.The length,head circumference,and weight of the newborns 6 weeks after birth were increased compared with those at birth,and the growth rate was higher in the observation group than in the control group(P<0.05),indicating better growth and development in the observation group.CONCLUSION Internet Plus-based postpartum healthcare services improve maternal role adaptation,increase breastfeeding rates,mitigate postpartum depression risk,and promote neonatal growth and development in primiparas. 展开更多
关键词 internet Plus Postpartum health services Primiparas Postpartum depression NEWBORN Growth and development
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Assessing the capacity value of demand flexibility from aggregated small Internet data centers in power distribution systems
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作者 Bo Zeng Xinzhu Xu Fulin Yang 《Global Energy Interconnection》 2025年第3期460-473,共14页
With the advent of the digital economy,there has been a rapid proliferation of small-scale Internet data centers(SIDCs).By leveraging their spatiotemporal load regulation potential through data workload balancing,aggr... With the advent of the digital economy,there has been a rapid proliferation of small-scale Internet data centers(SIDCs).By leveraging their spatiotemporal load regulation potential through data workload balancing,aggregated SIDCs have emerged as promising demand response(DR)resources for future power distribution systems.This paper presents an innovative framework for assessing capacity value(CV)by aggregating SIDCs participating in DR programs(SIDC-DR).Initially,we delineate the concept of CV tailored for aggregated SIDC scenarios and establish a metric for the assessment.Considering the effects of the data load dynamics,equipment constraints,and user behavior,we developed a sophisticated DR model for aggregated SIDCs using a data network aggregation method.Unlike existing studies,the proposed model captures the uncertainties associated with end tenant decisions to opt into an SIDC-DR program by utilizing a novel uncertainty modeling approach called Z-number formulation.This approach accounts for both the uncertainty in user participation intentions and the reliability of basic information during the DR process,enabling high-resolution profiling of the SIDC-DR potential in the CV evaluation.Simulation results from numerical studies conducted on a modified IEEE-33 node distribution system confirmed the effectiveness of the proposed approach and highlighted the potential benefits of SIDC-DR utilization in the efficient operation of future power systems. 展开更多
关键词 Aggregated Small internet data center Demand response Capacity value Z-number
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