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A fuzzy logic-based method for solving the scheduling problem in the cloud environments using a non-dominated sorted algorithm

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CONCURRENCY AND COMPUTATION-PRACTICE & EXPERIENCE 2019年第17期31卷

作者： Wakil, Karzan Badfar, Arshad Dehghani, Pooyan Sadati, Seyed Mojtaba Shoja Navimipour, Nima Jafari Sulaimani Polytech Univ Res Ctr Sulaimani Iraq Islamic Azad Univ Dept Comp Engn Cent Tehran Branch Tehran Iran Islamic Azad Univ Dept Ind Management South Tehran Branch Tehran Iran Shahid Beheshti Univ Elect Engn Dept Tehran Iran Islamic Azad Univ Islamshahr Branch Young Researchers & Elite Club Islamshahr *** Iran

Cloud computing as a new model of delivering IT services on the Internet has attained high attention recently. In this new paradigm, efficient service management causes the high quality of provided services. Scheduling as one of the most important duties of service management is a key problem in cloud computing that affects the total system performance. In most cases, the meta-heuristic methods are used for optimizing the scheduling issues instead of traditional methods. One of the influential evolutionary algorithms for optimizing the complicated problems is a non-dominated sorting particle swarm optimization (NSPSO) technique. In this paper, we propose a meta-heuristic technique using the NSPSO model for decreasing total cost and consumed total time. Furthermore, fuzzy set theory is applied to select the best solution. Simulation results have indicated that the efficiency of NSPSO is improved. In the many types of experiment, the proposed NSPSO algorithm was appropriate to keep a good spread of solutions and good converge. In addition, the diversity preserving mechanism applied in NSPSO has improvement against the other two investigated algorithms.

关键词： cloud computing multi-objective optimization particle swarm optimization algorithm task scheduling

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An optimized gene expression programming model for forecasting the national CO₂ emissions in 2030 using the metaheuristic algorithms

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APPLIED ENERGY 2018年 228卷 808-820页

作者： Hong, Taehoon Jeong, Kwangbok Koo, Choongwan Yonsei Univ Dept Architecture & Architectural Engn Seoul 03722 South Korea Kyonggi Univ Dept Architectural Engn Suwon 16227 South Korea

To cope with the approaching POST-2020 scenario, the national CO2 emission in the building sector, which accounts for 25.5% of the total CO2 emissions, should be managed effectively and efficiently. To do this, it is essential to forecast the national CO2 emissions in the building sector by region. As the South Korean government does not currently do this by region, regional characteristics are rarely taken into consideration when managing the national CO2 emissions in the building sector. Towards this end, this study developed an optimized gene expression programming model for forecasting the national CO2 emissions in 2030 using the metaheuristic algorithms. Compared to the forecasting performance of the gene expression programming model, the forecasting performance of the optimized gene expression programming harmony search optimization model has improved by 7.11, 2.05, and 2.06% in terms of the mean absolute error, root mean square error, and mean absolute percentage error, respectively. Various national CO2 emissions scenarios in the building sector were established in order to better analyze the variation range of the national CO2 emissions in the building sector. Compared to the national CO2 emissions in 2016 (i.e., scenario 1: 41,337 ktCO(2);scenario 2: 45,373 ktCO(2);scenario 3: 46,024 ktCO(2)) in multi-family housing complexes, the national CO2 emissions in 2030 (i.e., scenario 1: 37,579 ktCO(2);scenario 2: 37,736 ktCO(2);scenario 3: 37,754 ktCO(2)) in multi-family housing complexes are forecasted to increase by 10.00-21.91%. The developed optimized gene expression programming harmony search optimization model will potentially be able to assist policymakers in central and local governments forecast the national CO2 emissions in 2030. Through this, national CO2 emission management that more closely reflects the characteristics at the regional or national level can be supported.

关键词： National CO2 emissions Gene expression programming Harmony search optimization algorithm particle swarm optimization algorithm

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A swarm Intelligence algorithm for Routing Recovery Strategy in Wireless Sensor Networks With Mobile Sink

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IEEE ACCESS 2018年 6卷 67434-67445页

作者： Yue, Yinggao Cao, Li Hang, Bo Luo, Zhongqiang Hubei Univ Arts & Sci Comp Sch Xiangyang 441053 Peoples R China Sichuan Univ Sci & Engn Artificial Intelligence Key Lab Sichuan Prov Yibin 644000 Peoples R China Southwest Univ Sci & Technol Sch Informat Engn Mianyang 621010 Peoples R China

Considering the fault tolerance mechanism in the route optimization of the mobile wireless sensor network (MWSN), we analyze the routing fault tolerance between nodes and establish an intelligent fault-tolerant routing model for MWSN. We also propose a novel fault-tolerant routing algorithm for an MWSN based on an artificial bee colony (ABC) optimized particle swarm optimization algorithm (ABC-PSO), and this optimizes the ABC-PSO algorithm is applied to study the optimal construction strategy of an alternate route. The proposed using of the path coding, the ABC algorithm optimization, the collaborative updation, and the evolution of the principal and subordinate swarms, as well as particle selection, provide faster overall convergence performance and more accurate solutions for the network optimization. Analytical proofs and simulation experiments show that the route fault-tolerant strategy proposed in this paper can create a reliable transmission environment and an efficient route recovery mechanism for the MWSN. Moreover, it can lower the energy consumption of the network and increase the network's lifetime and improve the robustness and the reliability of MWSN.

关键词： Mobile wireless sensor networks fault tolerant swarm intelligence algorithm particle swarm optimization algorithm reliability

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Bicriterion total flowtime and maximum tardiness minimization for an order scheduling problem

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COMPUTERS & INDUSTRIAL ENGINEERING 2018年 117卷 152-163页

作者： Wu, Chin-Chia Liu, Shang-Chia Lin, Tzu-Yun Yang, Tzu-Hsuan Chung, I-Hong Lin, Win-Chin Feng Chia Univ Dept Stat Taichung 40724 Taiwan Fujen Catholic Univ Dept Business Adm Hsinpei City Taiwan

An order scheduling problem arises in numerous production scheduling environments. Makespan, mean flow time, and mean tardiness are the most commonly discussed and studied measurable criteria in the research community. Although the order scheduling model with a single objective has been widely studied, it is at odds with real-life scheduling practices. In practice, a typical manager must optimize multiple objectives. A search of the literature revealed that no articles had addressed the issue of optimizing an order scheduling problem with multiple objectives. Therefore, an order scheduling model to minimize the linear sum of the total flowtime and the maximum tardiness is introduced in this study. Specifically, several dominance relations and a lower bound are derived to expedite the search for the optimal solution. Three modified heuristics are proposed for finding near-optimal solutions. A hybrid iterated greedy algorithm and a particle swarm colony algorithm are proposed to solve this problem. Finally, a computational experiment is conducted to evaluate the performances of all proposed algorithms.

关键词： Order scheduling Iterated greedy algorithm particle swarm optimization algorithm Total completion time Maximum tardiness

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A multi-criterion partner selection problem for virtual manufacturing enterprises under uncertainty

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INTERNATIONAL JOURNAL OF PRODUCTION ECONOMICS 2018年 196卷 68-81页

作者： Huang, Bin Bai, Lihui Roy, Arnab Ma, Ningning Fuzhou Univ Coll Mech Engn & Automat Fuzhou 350108 Fujian Peoples R China Univ Louisville Dept Ind Engn Louisville KY 40292 USA

We study a partner selection problem for virtual manufacturing enterprises facing an uncertain environment. We propose a new method of using the grey system theory to account for uncertainties in a project's start time, completion time, transportation time, as well as cost. We first develop the concepts of delivery time agreement index and cost agreement index, and then formulate a multi-objective partner selection problem that maximizes the minimum delivery time agreement index, the average delivery time agreement index and the cost agreement index. A chaotic particle swarm optimization (CPSO) algorithm is developed. Extensive computational results show that the proposed CPSO method outperforms the standard PSO in providing quality solutions more reliably.

关键词： Partner selection Virtual enterprise particle swarm optimization algorithm Grey environment

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optimization of Power Allocation Based on particle swarm optimization in Wireless Location Network

Optimization of Power Allocation Based on Particle Swarm Opt...

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第九届中国卫星导航学术年会

作者： Jinrui Lin Guangxia Li Shiwei Tian Longlong Suo College of Communications Engineering Army Engineering University of PLA

Wireless location network combines data communication,contextual data collection and *** purpose of this network is to determine the positions of agents based on measurements between nodes and *** order to improve the positioning accuracy of wireless location network,the usual method is to increase the density of nodes,especially the density of anchor nodes,so as to optimize the topology of the ***,the wireless location network node power is limited,especially the wireless sensor *** is necessary to increase power consumption to meet the needs of a large number of ***,it is required that a certain level of power consumption should be set in the wireless location network,and even require further reduction in power consumption in daily *** the same time,we need to maintain a certain positioning accuracy,which requires the optimization of power allocation in the network,to make sure that power and positioning accuracy of the network can meet the needs of the actual *** this paper,an optimization of power allocation based on particle swarm optimization in wireless location network is proposed to optimize the power *** square position error bound is introduced as the evaluation standard of the network positioning *** the power optimization,the positioning accuracy of the network is improved.

关键词： wireless location network power optimization allocation square position error bound particle swarm optimization algorithm

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Chaotic grey wolf optimization algorithm for constrained optimization problems

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JOURNAL OF COMPUTATIONAL DESIGN AND ENGINEERING 2018年第4期5卷 458-472页

作者： Kohli, Mehak Arora, Sankalap DAV Univ Jalandhar India

The Grey Wolf Optimizer (GWO) algorithm is a novel meta-heuristic, inspired from the social hunting behavior of grey wolves. This paper introduces the chaos theory into the GWO algorithm with the aim of accelerating its global convergence speed. Firstly, detailed studies are carried out on thirteen standard constrained benchmark problems with ten different chaotic maps to find out the most efficient one. Then, the chaotic GWO is compared with the traditional GWO and some other popular meta-heuristics viz. Firefly algorithm, Flower Pollination algorithm and particle swarm optimization algorithm. The performance of the CGWO algorithm is also validated using five constrained engineering design problems. The results showed that with an appropriate chaotic map, CGWO can clearly outperform standard GWO, with very good performance in comparison with other algorithms and in application to constrained optimization problems. (C) 2017 Society for Computational Design and Engineering. Publishing Services by Elsevier.

关键词： Chaotic grey wolf optimization Firefly algorithm Flower pollination algorithm particle swarm optimization algorithm

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Wavefront sensing method for diffraction optical system based on phase diversity

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INFRARED PHYSICS & TECHNOLOGY 2019年 102卷

作者： Zhi, Xiyang Gong, Jinnan Yu, Di Wang, Dawei Niu, Ruize Harbin Inst Technol Res Ctr Space Opt Engn Harbin 150001 Heilongjiang Peoples R China

In this paper, we present a novel wavefront sensing method for diffraction optical system based on phase diversity. Based on the physical-imaging mechanism of diffractive optical system, the wavefront characteristics of the diffraction optical system are characterized by using diffraction efficiency. On this basis, a novel modified phase diversity (PD) wavefront sensing method is established based on the blocking idea. After that, the global optimization method of corresponding method based on particle swarm optimization algorithm is proposed. Finally, some experiment results are achieved with the experiment on a membrane diffraction optical system. Experimental results indicate that the proposed algorithm performs well on both wavefront reconstruction and image restoration and is far superior to traditional methods in diffraction optical systems. The accuracy of our proposed PD method is at least two orders of magnitude higher than the traditional method. Taking the 0.01 degrees field of view for example, our modified PD method can achieve the accuracy of 2.5 x 10(-4) wavelength when the diffraction efficiency is higher than 0.6. This proposed method can be applied to improve the image quality of the diffraction optical system and further support the on-orbit application of ultra-large aperture membrane imaging technology.

关键词： Wavefront sensing Phase diversity Diffraction optical system particle swarm optimization algorithm

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Non-contact voltage measurement of three-phase overhead transmission line based on electric field inverse calculation

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IET GENERATION TRANSMISSION & DISTRIBUTION 2018年第12期12卷 2952-2957页

作者： Xiao, Dongping Xie, Yutong Ma, Qichao Zheng, Qi Zhang, Zhanlong Chongqing Univ State Key Lab Power Transmiss Equipment & Syst Se 174 Shapingba Dist Chongqing Peoples R China

With the development of smart grid, the demand for voltage measurement along the overhead transmission lines is increasing. However, the installation of voltage transformers in the existing lines entails numerous difficulties. This study proposes a new non-contact measurement method by inversely calculating the voltages on AC overhead transmission lines based on the power-frequency electric field measurement data. To improve the calculation accuracy, the 3D model of transmission lines is built, and the relations between the 3D electric fields and voltages are presented. An improved algorithm that intermingles with the particle swarm algorithm and genetic algorithm is developed to ascertain optimal inverse solutions, meanwhile to improve the convergence speed and calculation stability. To further reduce the computational complexity, the constraint relations between the voltages and electric fields are derived, thereby the simplification from three decision variables to one is achieved. Then, some simulation cases with different measurement errors and voltage running states are conducted to show the good robustness and high accuracy of the proposed inversion method. Finally, a three-phase experimental system is built and the actual measured data are used to inversely calculate, which verifies the practicability of the proposed non-contact voltage measurement method.

关键词： voltage measurement power overhead lines inverse problems electric fields smart power grids potential transformers particle swarm optimisation computational complexity three-phase overhead transmission line electric field inverse calculation smart grid development voltage parameter measurement voltage transformers AC overhead transmission lines inverse calculation electric field measurement data 3D mathematical model particle swarm optimization algorithm genetic algorithm optimal inverse solutions convergence speed computational complexity optimisation algorithm multiple decision variables single decision variable selection strategy asymmetrical simulation three-phase symmetrical simulation measurement error 3D real-time electric field measurement devices noncontact voltage measurement method

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Optimized BP neural network for Dissolved Oxygen prediction

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IFAC-PapersOnLine 2018年第17期51卷 596-601页

作者： Wu, Jing Li, Zhenbo Zhu, Ling Li, Guangyao Niu, Bingshan Peng, Fang College of Information and Electrical Engineering China Agricultural University Beijing China Key Laboratory of Agricultural Information Acquisition Department of Agriculture Beijing China Agricultural Internet of Things Engineering Technology Research Center Beijing China

To solve the low accuracy, slow convergence and poor robustness problem of traditional neural network method for water quality forecasting, a new model of dissolved oxygen content prediction is proposed based on sliding window, particle swarm optimization (PSO) and BP neural network. dissolved oxygen content prediction model in water quality is established by handling dissolved oxygen content data through sliding window, and using particle swarm optimization algorithm to obtain BP neural network parameters. This model is applied to prediction analysis of dissolved oxygen with online monitoring of regional groundwater in Xilin Gol League on July 25, 2017 to December 5, 2017. Experimental results show that the model has better prediction effect, and mean square error (MSE), root mean square error(RMSE), mean absolute error(MAE) value of PSO algorithm to optimize the BP neural network based on sliding window are 0.437% and 6.611%, 0. 251% respectively, which are better than single forecasting method by using sliding window, PSO, and BP neural network individually. The Optimized BP neural network not only has fast convergence speed and high prediction accuracy, but also provides decision-making basis for water pollution control and water management. © 2018

关键词： Neural networks Backpropagation Biochemical oxygen demand Decision making Dissolution Dissolved oxygen Errors Forecasting Groundwater Mean square error particle swarm optimization (PSO) Predictive analytics Water management Water pollution Water pollution control Water quality BP neural networks Dissolved oxygen contents Fast convergence speed Neural network method particle swarm optimization algorithm Root mean square errors Sliding Window Water quality predictions

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