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NNRA-CAC: NARX Neural Network-based Rate Adjustment for Congestion Avoidance and Control in Wireless Sensor Networks NNRA-CAC:基于NARX神经网络的无线传感器网络拥塞避免与控制速率调整
Q2 Social Sciences Pub Date : 2017-07-03 DOI: 10.1080/13614576.2017.1368407
Dr. Vaibhav Eknath Narawade, U. Kolekar
ABSTRACT A wireless sensor network (WSN) is an application area that is valuable in various fields, such as healthcare monitoring, environmental monitoring, and so on. Application areas require WSNs with high throughput and low degree of packet loss. Due to congestion in the network, the throughput of the network is affected, which imposes the need for congestion control in the network. This article proposes a method, titled NARX Neural network-based Rate Adjustment (NNRA) for avoiding and controlling congestion in the network. Initially, congestion in the network is avoided by dropping packets and the NNRA is used to control congestion in the network when congestion is present. Performance analysis is carried out in terms of throughput, delay, size of the queue, packet loss, and the level of the congestion using two setups. The results of the proposed method are compared with the existing methods to prove the effectiveness of the proposed method. The proposed method attained a maximum throughput at a rate of 0.9585 and minimum values for delay, queue size, packet loss, and the congestion level.
摘要无线传感器网络(WSN)是一个在医疗监测、环境监测等各个领域都很有价值的应用领域。应用领域要求无线传感器网络具有高吞吐量和低丢包率。由于网络中的拥塞,网络的吞吐量受到影响,这就要求在网络中进行拥塞控制。本文提出了一种基于NARX神经网络的速率调整(NNRA)方法来避免和控制网络中的拥塞。最初,通过丢弃数据包来避免网络中的拥塞,并且当存在拥塞时,NNRA用于控制网络中的阻塞。性能分析是根据吞吐量、延迟、队列大小、数据包丢失和使用两种设置的拥塞程度进行的。将所提出的方法的结果与现有方法进行了比较,以证明所提出方法的有效性。所提出的方法以0.9585的速率获得了最大吞吐量,并获得了延迟、队列大小、分组丢失和拥塞级别的最小值。
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引用次数: 3
Adaptive Grey Wolf Optimization for Weightage-based Combined Economic Emission Dispatch in Hybrid Renewable Energy Systems 基于权重的混合可再生能源系统联合经济排放调度自适应灰狼优化
Q2 Social Sciences Pub Date : 2017-07-03 DOI: 10.1080/13614576.2017.1368406
S. Halbhavi, D. Kulkarni, S. K. Ambekar, D. Manjunath
ABSTRACT Nowadays, the electric power networks comprise diverse renewable energy resources, with the rapid development of technologies. In this scenario, the optimal Economic Dispatch is required by the power system due to the increment of power generation cost and ever growing demand of electrical energy. Thus, the reduction of power generation cost in terms of fuel cost and emission cost has become one of the main challenges in the power system. Accordingly, this article proposes the Grey Wolf Optimization-Extended Searching (GWO-ES) algorithm to provide the excellent solution for the problems regarding Combined Economic and Emission Dispatch (CEED). It validates the robustness of the proposed algorithm in seven Hybrid Renewable Energy Systems (HRES) test bus systems, which combines the wind turbine along with the thermal power plant. Furthermore, it compares the performance of the proposed GWO-ES algorithm with conventional algorithms such as Genetic Algorithm (GA), Particle Swarm Optimization (PSO), Differential Evolution (DE), and GWO. Next, the article emulates a valuable convergence analysis and justification for the quality of CEED through the GWO-ES algorithm. Finally, the result was compared to four other conventional algorithms to assure the efficiency of the proposed algorithm in terms of fuel cost and emission cost reduction.
摘要当今,随着技术的飞速发展,电网由多种可再生能源组成。在这种情况下,由于发电成本的增加和电能需求的不断增长,电力系统需要最佳经济调度。因此,降低燃料成本和排放成本方面的发电成本已成为电力系统面临的主要挑战之一。因此,本文提出了灰狼优化扩展搜索(GWO-ES)算法,为经济与排放联合调度(CEED)问题提供了良好的解决方案。它在七个混合可再生能源系统(HRES)测试总线系统中验证了所提出算法的稳健性,该系统将风力涡轮机与火力发电厂结合在一起。此外,将所提出的GWO-ES算法与遗传算法(GA)、粒子群优化算法(PSO)、差分进化算法(DE)和GWO等传统算法的性能进行了比较。接下来,本文通过GWO-ES算法对CEED的质量进行了有价值的收敛性分析和论证。最后,将结果与其他四种传统算法进行了比较,以确保所提出的算法在降低燃料成本和排放成本方面的效率。
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引用次数: 3
EOV-C2 EOV-C2
Q2 Social Sciences Pub Date : 2017-07-03 DOI: 10.1080/13614576.2017.1412146
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引用次数: 0
A Novel Framework for Human Activity Recognition with Time Labelled Real Time Sensor Data 一种基于时间标记实时传感器数据的人类活动识别新框架
Q2 Social Sciences Pub Date : 2017-07-03 DOI: 10.1080/13614576.2017.1368408
J. Gitanjali, Muhammad Rukunuddin Ghalib
ABSTRACT Human activity recognition is an effective approach for identifying the characteristics of historical data. In the past decades, different shallow classifiers and handcrafted features were used to identify the activities from the sensor data. These approaches are configured for offline processing and are not suitable for sequential data. This article proposes an adaptive framework for human activity recognition using a deep learning mechanism. This deep learning approach forms the deep belief network (DBN), which contains a visible layer and hidden layers. The processing of raw sensor data is performed by these layers and the activity is identified at the top most layers. The DBN is tested using the real time environment with the help of mobile devices that contain an accelerometer, a magnetometer, and a gyroscope. The results are analyzed with the metrics of precision, recall, and the F1-score. The results proved that the proposed method has a higher F1_score when compared to the existing approach.
人类活动识别是识别历史数据特征的一种有效方法。在过去的几十年里,不同的浅分类器和手工特征被用来从传感器数据中识别活动。这些方法是为脱机处理配置的,不适合顺序数据。本文提出了一个使用深度学习机制的人类活动识别自适应框架。这种深度学习方法形成了包含可见层和隐藏层的深度信念网络(DBN)。原始传感器数据的处理由这些层执行,活动在最上层进行识别。DBN在包含加速度计、磁力计和陀螺仪的移动设备的帮助下使用实时环境进行测试。使用精确度、召回率和f1分数对结果进行分析。结果表明,与现有方法相比,该方法具有更高的F1_score。
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引用次数: 1
Provision of Records Created in Networked Environments in the Curricula of Institutions of Higher Learning in Africa 非洲高等院校课程中网络环境中创建的记录的提供
Q2 Social Sciences Pub Date : 2017-01-02 DOI: 10.1080/13614576.2017.1297731
M. Ngoepe, S. Katuu
ABSTRACT The importance of curriculum development on archives and records management in the digital era, especially on the African continent, cannot be overemphasized. While many universities in the global hub have included studies on all aspects of archives and records management programs with many emphasizing records created in networked environments, the same cannot be said about universities on the African continent. In Africa, education and training of archives and records professionals can be traced back several decades. Archives and records practitioners in Africa’s different countries have, over the years, taken varying paths to attain their professional qualifications. This study outlines progress on an ongoing study by InterPARES Trust Africa Team that examines the curricula in different African educational institutions and investigates the extent to which they address the increasingly complex environment that includes the management of digital records in networked environments. It is hoped that the study will inform curriculum development and review in the area of digital records at the institutions of higher learning in Africa.
在数字时代,特别是在非洲大陆,档案和记录管理课程开发的重要性怎么强调都不为过。虽然全球中心的许多大学都包括了档案和记录管理项目的各个方面的研究,其中许多强调在网络环境中创建的记录,但非洲大陆的大学却并非如此。在非洲,档案和记录专业人员的教育和培训可以追溯到几十年前。多年来,非洲不同国家的档案和记录从业人员采取了不同的途径来获得专业资格。本研究概述了InterPARES信托非洲小组正在进行的一项研究的进展,该研究检查了非洲不同教育机构的课程,并调查了它们在多大程度上应对日益复杂的环境,包括网络环境中数字记录的管理。希望这项研究将为非洲高等院校数字记录领域的课程开发和审查提供信息。
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引用次数: 15
Multi-Objective Optimization Model for QoS-Enabled Web Service Selection in Service-Based Systems 基于服务系统中支持qos的Web服务选择的多目标优化模型
Q2 Social Sciences Pub Date : 2017-01-02 DOI: 10.1080/13614576.2017.1297733
Suvarna S. Pawar, Y. Prasanth
ABSTRACT Nowadays, the web service has become the emerging communication technology where the interaction of each user is performed through the World Wide Web. However, the performance of the web service mechanism is degraded due to security flaws that occur throughout the Internet.. The user or service requester may not attain the relevant web service for their requirement. To overcome this problem, the newly developed multi-objective based Cuckoo Search (MCS) algorithm is proposed in this article. Initially, the input query model was built by the query keyword that is provided by the service requester. Then, the given query is matched with the database that hosts the web services that relates to input query. Among the various services, the user has to select the appropriate web service using the proposed algorithm. The MCS algorithm is newly designed by combining the Cuckoo Search algorithm and the QoS parameter based multiple objectives. Additionally, the new mathematical model of fitness is evaluated by the multi-objective parameters. Finally, the proposed algorithm exploits the fitness value to select the relevant web service for the user query. The experimental results are validated and performance is analyzed by the parameters of precision, recall, and F-measure. Thus, 86.6% of precision value was obtained by the proposed method, which ensured provision of the appropriate web service.
如今,web服务已经成为新兴的通信技术,每个用户的交互都是通过万维网来完成的。但是,由于整个Internet中存在安全漏洞,web服务机制的性能会降低。用户或服务请求者可能无法获得满足其需求的相关web服务。为了克服这一问题,本文提出了一种基于多目标的布谷鸟搜索算法。最初,输入查询模型是由服务请求者提供的query关键字构建的。然后,将给定的查询与承载与输入查询相关的web服务的数据库进行匹配。在各种服务中,用户必须使用所提出的算法选择合适的web服务。将杜鹃搜索算法与基于QoS参数的多目标算法相结合,设计了一种新的MCS算法。此外,还利用多目标参数对新的适应度数学模型进行了评价。最后,利用适应度值为用户查询选择相关的web服务。通过精密度、召回率和F-measure等参数对实验结果进行了验证和性能分析。结果表明,该方法可获得86.6%的精度值,保证了提供合适的web服务。
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引用次数: 4
Interactive Self Improvement Based Adaptive Particle Swarm Optimization 基于交互式自改进的自适应粒子群优化
Q2 Social Sciences Pub Date : 2017-01-02 DOI: 10.1080/13614576.2017.1297732
S. B. Vinay Kumar, P. Rao
ABSTRACT One of the most familiar stochastic heuristic search algorithm is Particle swarm optimization (PSO), which is motivated by social behavior of animals like birds, fishes, and so forth. The significant advantages of PSO algorithm are simple structure and limited parameters to be used. Among the parameters, inertia weight is considered as the most crucial one in PSO which brings trade-off between the characteristics of exploitation and exploration. A novel Interactive Self-Improvement based Adaptive PSO (ISI-APSO) method that traits better searching efficiency and accuracy than the traditional particle swarm optimization is proposed. More precisely, it can achieve faster convergence speed while on global search over the entire search space. The simulation results show that the performance of our proposed ISI-APSO is substantially improved than other heuristic algorithms in terms of the search efficiency and convergence speed.
粒子群优化算法是人们最熟悉的随机启发式搜索算法之一,它是由鸟类、鱼类等动物的社会行为驱动的。PSO算法的显著优点是结构简单,使用的参数有限。在这些参数中,惯性权重被认为是PSO中最关键的参数,它在开发和勘探特性之间进行了权衡。提出了一种新的基于交互自改进的自适应粒子群算法(ISI-APSO),该算法比传统的粒子群算法具有更好的搜索效率和精度。更准确地说,它可以在整个搜索空间进行全局搜索时实现更快的收敛速度。仿真结果表明,在搜索效率和收敛速度方面,我们提出的ISI-APSO算法的性能比其他启发式算法有了显著提高。
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引用次数: 1
Energy Efficient Cluster Head Selection for Internet of Things 面向物联网的高效簇头选择
Q2 Social Sciences Pub Date : 2017-01-02 DOI: 10.1080/13614576.2017.1297734
M. Praveen, K. Vishnuvardhan Reddy, R. Babu
ABSTRACT Recently, Internet of Things (IoT) devices are highly utilized in diverse fields such as environmental monitoring, industries, and smart home, among others. Under such instances, a cluster head is selected among the diverse IoT devices of wireless sensor network (WSN) based IoT network to maintain a reliable network with efficient data transmission. This article proposed a novel method with the combination of Gravitational Search Algorithm (GSA) and Artificial Bee Colony (ABC) algorithm to accomplish the efficient cluster head selection. This method considers the distance, energy, delay, load, and temperature of the IoT devices during the operation of the cluster head selection process. Furthermore, the performance of the proposed method is analyzed by comparing with conventional methods such as Artificial Bee Colony (ABC), Genetic Algorithm (GA), Particle Swarm Optimization (PSO), and GSO algorithms. The analysis related to the existence of the number of alive nodes, convergence estimation, and performance in terms of normalized energy, load, and temperature of the IoT devices are determined. Thus the analysis of our implementation reveals the superior performance of the proposed method.
近年来,物联网(IoT)设备被广泛应用于环境监测、工业、智能家居等领域。在这种情况下,在基于无线传感器网络(WSN)的物联网网络的各种物联网设备中选择一个簇头,以保持网络的可靠和高效的数据传输。本文提出了一种将引力搜索算法(GSA)与人工蜂群算法(ABC)相结合的方法来实现簇头的高效选择。该方法在簇头选择过程中考虑了物联网设备的距离、能量、延迟、负载和温度。此外,通过与人工蜂群(ABC)、遗传算法(GA)、粒子群优化(PSO)和粒子群优化(GSO)等传统算法的比较,分析了该方法的性能。根据物联网设备的归一化能量、负载和温度,对存在的活节点数量、收敛估计和性能进行分析。因此,对我们的实现的分析揭示了所提出的方法的优越性能。
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引用次数: 38
An Exploration of the Digitisation Strategies of the Liberation Archives of the African National Congress in South Africa 南非非洲人国民大会解放档案数字化策略探讨
Q2 Social Sciences Pub Date : 2016-08-01 DOI: 10.1080/13614576.2019.1608571
Sidney Netshakhuma, M. Ngoepe
ABSTRACT Despite the availability of guidelines, standards, and software developed by national archives, professional associations, research groups and commercial organizations, digital records are still a challenge to manage, especially in Africa. A number of digitization projects undertaken by archival organizations in Africa failed to realize their goals of ensuring preservation and access of records. This is partially due to lack of strategies to migrate from analog to digital records. This study explored the strategies adopted by the African National Congress (ANC) in digitizing its liberation archives with the aim of capturing lessons learnt. Qualitative data were collected through interviews with purposively selected employees of the ANC, MultiChoice, Africa Media Online, and the Nelson Mandela Foundation as they were involved in the digitization project of the liberation archives. The results revealed that the ANC established an archives management committee to lead the implementation of digitization of the liberation archives. Furthermore, the ANC relied heavily on the companies MultiChoice and Africa Media Online, as its archivists were not trained for the digitization of archives. A number of lessons learnt with regard to the digitization of liberations archives are captured. The study concludes by demonstrating the importance of having a strategy in digitizing archival holdings. It is recommended that this study should be extended to other liberation movements in eastern and southern Africa. Furthermore, a study on determining the authenticity of digitized liberation archives is recommended.
尽管国家档案馆、专业协会、研究小组和商业组织开发了指导方针、标准和软件,但数字记录管理仍然是一个挑战,特别是在非洲。非洲档案组织开展的一些数字化项目未能实现其确保保存和获取记录的目标。这部分是由于缺乏从模拟记录向数字记录迁移的策略。本研究探讨了非洲人国民大会(ANC)在将其解放档案数字化方面采取的策略,目的是获取经验教训。定性数据是通过对参与解放档案数字化项目的非国大、多选择、非洲媒体在线和纳尔逊·曼德拉基金会的员工进行访谈收集的。结果显示,ANC成立了档案管理委员会,领导实施解放档案的数字化。此外,ANC严重依赖MultiChoice和Africa Media Online公司,因为它的档案保管员没有接受过档案数字化方面的培训。在解放档案的数字化方面吸取了一些经验教训。该研究的结论是证明了在档案馆藏数字化方面制定战略的重要性。兹建议将这项研究扩大到东部和南部非洲的其他解放运动。此外,还建议对数字化解放档案的真实性进行研究。
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引用次数: 11
EOV Ed board EOV板
Q2 Social Sciences Pub Date : 2016-07-02 DOI: 10.1080/13614576.2016.1257326
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引用次数: 0
期刊
New Review of Information Networking
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