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An efficient scheduling mechanism for IoT-based home automation system

international Journal of Electronic business 2021年第2期16卷 147-156页

作者： Potluri, Sirisha Mohanty, Sachi Nandan Department of Computer Science and Engineering Faculty of Science and Technology ICFAI Foundation for Higher Education Telangana Hyderabad501203 India

Using internet of things (IoT), we can connect and enable every object to send or receive data through the internet. When it comes to real life applications we can make use of this technology for easy communication through home automation. Smart homes, smart agriculture, smart automobiles, and smart electronic gadgets are the examples of IoT-based applications. When more number of objects is connected in distributed environment, controlling and managing the device is much difficult. Due to IoT enabled framework, the number of requests coming to the cloud computing environment is increasing exponentially. The scheduling algorithm which is used in such cases should be efficient to handle various requests coming from these connected devices. The objective of this paper is to develop efficient scheduling mechanism which controls home appliances remotely by using any android or smart phone. Since the devices are connected over cloud computing environment, the proposed method can efficiently schedule the tasks. Copyright © 2021 Inderscience Enterprises Ltd.

关键词： Cloud computing

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Performance modelling of asynchronous replica distribution technique on distributed database systems

Performance modelling of asynchronous replica distribution t...

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Joint Meeting of the international symposium on distributed computing and applications to business, engineering and science/international Conference on Parallel Algorithms and computing Evironments

作者： Deris, M. Mat Aznida, Z. Saman, M. Y. Suryani, W. A. Zarina, M. Coll Univ Technol Tun Hussein Onn Fac Informat Technol & Multimedia Johor Baharu 86400 Malaysia KUSZA Coll Ctr Comp Sci Terengganu 21030 Malaysia Univ Sci & Technol Malaysia Dept Comp Sci Terengganu 21030 Malaysia

In distributed database systems, replication is the most widely used approach to offering high data availability, increased fault tolerance, and improved scalability of the overall system. However, the primary concern with this technique is not only to provide high availability and reliability but also to boost the performance of data replication, i.e. to minimize response time and maximize throughput. We propose an analytical model for asynchronous replication technique ( ART) by copying the data and replicating it to remote sites on a continuous basis. A remote copy of the data is created at a subsequent time after the primary copy is updated. The model is based on the M/G/1 queuing system by taking into account intersite communication between sites in the systems.

关键词： asynchronous replication distributed databases response time throughput

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Agent-based error prevention algorithms

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EXPERT SYSTEMS WITH applications 2012年第1期39卷 280-287页

作者： Chen, Xin W. Nof, S. Y. So Illinois Univ Dept Ind & Mfg Engn Sch Engn Edwardsville IL 62026 USA Purdue Univ Sch Ind Engn W Lafayette IN 47907 USA

This article presents a new methodology using distributed algorithms to identify and prevent errors in production and service. A sequential production/service line is selected to challenge the analysis, and reveal if the distributed algorithms can outperform centralized algorithms in automating error prevention. Agent-based error prevention algorithms (AEPAs) are developed for distributed agents to identify and prevent errors with decision rules. Analytical studies and simulation experiments are conducted to compare AEPAs with traditional centralized error prediction and detection algorithms. The results show that the AEPAs employing nominal and optimistic rules perform better than the centralized algorithms in terms of preventability and reliability. Collaboration among agents improves AEPAs' performance. It is recommended to prevent errors by two agents simultaneously executing the AEPA employing the integrated nominal rule. (C) 2011 Elsevier Ltd. All rights reserved.

关键词： Agent-based algorithms Collaboration distributed control Error analysis Fault diagnosis Prevention

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A PKI-based authentication approach for E-business systems

A PKI-based authentication approach for E-Business systems

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2nd international symposium on Information engineering and Electronic Commerce, IEEC2010

作者： Gan, Siyu Gu, Chunhua Zhang, Xueqin Shanghai e and P International Inc. Shanghai 200120 China School of Information Science and Engineering East China University of Science and Technology Shanghai 200237 China

ISBN: (纸本)9781424469741

With the rapid development of E-business systems, the technology of distributed services and security becomes research focus in the field of Internet based applications. The distributed E-business application platform has strong security requirements and specific demands on secure user authentication. After analyzing the distributed authentication protocol and public key infrastructure (PKI), a method for distributed E-business application authentication using public key cryptography is introduced in this paper. By distributing most of the authentication workload away from the trusted intermediary and to the communicating parties, significant enhancements to security and scalability can be achieved. © 2010 IEEE.

关键词： Authentication

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A High Precision Refresh Method to Improve The Performance of Flash Storage Devices 20

A High Precision Refresh Method to Improve The Performance o...

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20th international symposium on distributed computing and applications for business engineering and science, DCABES 2021

作者： Li, Peixuan Zhang, Yaofang Yin, Deli Xie, Ping College of Computer of Qinghai Normal University Xining810016 China State Key Laboratory ofTibetan Intelligent Information Processing andApplication Xining810016 China Key Laboratory ofInternet ofThings ofQinghai Province Xining810016 China Academy ofPlateau Science and Sustainability Xining810016 China Chuzhou Polytechnic Chuzhou239000 China

ISBN: (纸本)9781665428897

With the development of flash memory, its storage density has gradually increased, but its reliability has been greatly reduced. Now, flash memory relies on LDPC to solve this problem. Although LDPC (Low Density Parity Check Code) can correct data with a high error rate, it will cause a lot of delays. The refresh operation can cause the LDPC decoding delay. In the work of this article, we propose a precise refresh strategy. On the basis of high latency pages, according to the characteristics of data access frequency, we take the read-hot data in the write-cold data as our refresh target. We test the performance of the precise refresh scheme through different workloads. Compared with ordinary refresh schemes, the average response time of flash memory storage devices is reduced by 16%-49% and the lifetime of flash memory is extended. © 2021 IEEE.

关键词： Flash memory

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Differentially Private Auctions for Private Data Crowdsourcing 17

Differentially Private Auctions for Private Data Crowdsourci...

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IEEE Int Conf on Parallel and distributed Processing with applications, Big Data and Cloud computing, Sustainable computing and Communications, Social computing and Networking (ISPA/BDCloud/SocialCom/SustainCom)

作者： Shi, Mingyu Qiao, Yu Wang, Xinbo Zhengzhou Univ Light Ind Elect Informat Engn Coll Zhengzhou Peoples R China Nanjing Univ Dept Comp Sci & Technol Nanjing Peoples R China Peking Univ HSBC Business Sch Beijing Peoples R China

ISBN: (纸本)9781728143286

The success of machine learning and deep learning depends on the large amount of for training. Data acquisition is an indispensable event for data science. In this paper, we study a scenario where a data broker wantes to buy private data from a population to estimate some statistics and resell the results to the data users in order to obtain profits. It's necessary to compensate owners of private data for their loss of privacy. In our setting, we assume that sellers are selfish agents who would like to maximize his or her utilities, thus we need to design truthful mechanisms. In our work, we will study a more generalized optimization goal for budget free crowdsoucer, profit maximization. The utility of the buyer is a function of the accuracy of the expected statistic. We will use a Profit-Extract algorithm for the auction, and a Laplace mechanism will be used for privacy protection. Our proposed designed mechanism has properties of individual rationality, truthfulness, computational efficiency and also has a performance lowerbound. Furthermore, we will design an online auction for our setting.

关键词： Crowdsourcing Game theory Private

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Agile parallel applications

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international JOURNAL OF COMPUTER MATHEMATICS 2007年第2期84卷 153-166页

作者： Anthony, R. J. Univ Greenwich Old Royal Naval Coll Dept Comp Sci London SE10 9LS England

Non-dedicated loosely coupled systems are popular platforms for cluster- and grid-based parallel processing, fundamentally because they have good cost-performance ratios and are scalable. However, these platforms represent highly dynamic environments in which performance and efficiency can be seriously impacted by changes in environmental conditions. This is especially significant where the runtime configuration has been determined statically, either at compilation time or at the start of execution. This paper introduces the concept of agile parallel processing in which the application manages several aspects of its own run-time behaviour, including deployment granularity. This approach reduces the emphasis on the preconfiguration of components, and relies instead on inbuilt learning and discovery capabilities. To facilitate investigation into the extent to which a self-managing approach can be beneficial to parallel processing, an experimental framework has been developed. The framework provides a range of services such as dynamic worker discovery and performance calibration, and policy-controlled facilities such as resource management and adaptation to suit environmental conditions. The framework integrates these services with the parallel application code. The operation and performance of policy-based dynamic deployment scheduling in dynamic environments is analysed in detail.

关键词： scheduling parallel processing dynamic deployment self-management policy-based computing

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Temporal Data Analytics on COVID-19 Data with Ubiquitous computing 18

Temporal Data Analytics on COVID-19 Data with Ubiquitous Com...

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18th IEEE Int Symp on Parallel and distributed Proc with Applicat (ISPA) / 10th IEEE Int Conf on Big Data and Cloud Comp (BDCloud) / IEEE Int Symp on Social Comp and Networking (SocialCom) / IEEE Int Conf on Sustainable Comp and Commun (SustainCom)

作者： Chen, Yubo Leung, Carson K. Shang, Siyuan Wen, Qi Univ Manitoba Dept Comp Sci Winnipeg MB Canada

ISBN: (纸本)9781665414852

With technological advancements in computing and communications, huge amounts of big data are generated and collected at a very rapid rate from a wide variety of rich data sources. Embedded in these big data are useful information and valuable knowledge. An example is healthcare and epidemiological data such as data related to patients who suffered from viral diseases like the coronavirus disease 2019 (COVID-19). Knowledge discovered from these epidemiological data via data science helps researchers, epidemiologists and policy makers to get a better understanding of the disease, which may inspire them to come up ways to detect, control and combat the disease. In this paper, we present a temporal data science algorithm for analyzing big COVID-19 epidemiological data, with focus on the temporal data analytics with ubiquitous computing. The algorithm helps users to get a better understanding of information about the confirmed cases of COVID-19. Evaluation results show the benefits of our system in temporal data analytics of big COVID-19 data with ubiquitous computing. Although the algorithm is designed for temporal data analytics of big epidemiological data, it would be applicable to other temporal data analytics of big data in many real-life applications and services.

关键词： data science coronavirus disease COVID-19 big data temporal data data mining ubiquitous computing

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Optimization of distributed CA applied in Mobile Ad Hoc Networks

Optimization of Distributed CA applied in Mobile Ad Hoc Netw...

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international symposium on Information science and engineering

作者： Wang, Hengjun Wang, Yadi Han, Jihong Zhang, Xiaobin Zhengzhou Informat Sci & Technol Inst Zhengzhou 450004 Peoples R China

ISBN: (纸本)9780769534947

In mobile ad hoc networks (MANETs), a single certificate authority (CA) node could be a security bottleneck. Multiple replica of CA is fault tolerant, but the network is as vulnerable as single CA or even worse since breaking one of the CAs means breaking all of them. Many distributed CA models based on the secret sharing scheme are proposed. In this paper, the suitable construction of the distributed CA is discussed based on the optimization theory. By the analyzing of the characters of the distributed CA in MANETS and the processes of the secure services provided, the optimization model is built. The mean response time of the applications is the optimization goal and the service success probability, system security probability and the loss probability of applications are the constraints in the optimization model. A classic resolving process of the optimization model is given, which is instructional for designing the construction of distributed CA applied in MANETs.

关键词： distributed CA Mobile Ad Hoc Networks Optimization

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Maritime Broadband Communications: applications, Challenges and an Offshore 5G-virtual MIMO Paradigm 18

Maritime Broadband Communications: Applications, Challenges ...

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作者： Yu, Cunqian Li, Jingyu Zhang, Chunfang Li, Hang He, Rongxi Lin, Bin Dalian Maritime Univ Coll Informat Sci & Technol Dalian Peoples R China

ISBN: (纸本)9781665414852

Orienting to the competitive exploration of marine resources and the ship intelligent navigation, the broadband and stable maritime communications has regarded as a matter of concern. Due to the particularity of the ocean environment, the maritime communication network is severely restricted compared to the terrestrial one. By understanding the requirement of maritime business, this article deepens the research on maritime communications at offshore areas and ocean and makes a summary of the urgent problems and mainstream communication technologies. Besides, an experimental type of maritime network paradigm based on the coast-5G network involving virtual MIMO technology is present, with a view to providing open issues for the offshore maritime broadband communications.

关键词： maritime broadband communication virtual MIMO 5G network open platform structure

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