Job scheduling in grid computing is a very important problem. To utilize grids efficiently, we need a good job scheduling algorithm to assign jobs to resources in grids. The main scope of this article is to propose a ...
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Job scheduling in grid computing is a very important problem. To utilize grids efficiently, we need a good job scheduling algorithm to assign jobs to resources in grids. The main scope of this article is to propose a new antcolonyoptimization (ACO) algorithm for balanced job scheduling in the Grid environment. To achieve the above goal, we will indicate a way to balance the entire system load while minimizing the makespan of a given set of jobs. Based on the experimental results, the proposed algorithm confidently demonstrates its practicability and competitiveness compared with other job scheduling algorithms.
In view of the serious reactive power loss in the rural network, improved ant colony optimization algorithm (ACOA) was used to optimize the reactive power compensation for the rural distribution system. In this stud...
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In view of the serious reactive power loss in the rural network, improved ant colony optimization algorithm (ACOA) was used to optimize the reactive power compensation for the rural distribution system. In this study, the traditional ACOA was improved in two aspects: one was the local search strategy, and the other was pheromone mutation and re-initialization strategies. The reactive power optimization for a county's distribution network showed that the improved ACOA was practicable.
With an increase in the demands, the Cloud computing has become one of the ongoing scalable approaches to fulfill the cloud based services. The biggest advantage of the cloud computing is the ability to overcome the i...
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With an increase in the demands, the Cloud computing has become one of the ongoing scalable approaches to fulfill the cloud based services. The biggest advantage of the cloud computing is the ability to overcome the infrastructural challenges those are earlier faced by other technologies. Since the technology is new, therefore the development of the whole structure is not so efficient. It does have a lot of issues on which various scientists and others are working on. Scheduling, load balancing, fault tolerance, etc. are various challenges faced by cloud computing. For this purpose various techniques and algorithms have been proposed. In this paper, we will discuss the issue of load balancing of cloud computing and we will study the different types of load balancing techniques used in in biomedical services and make a comparative analysis among all the existing techniques.
A variety of domination concepts have been defined to provide better routing and defense strategies under different constraints. A double Roman dominating function (DROMDF) on a simple, undirected graph.. is a functio...
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A variety of domination concepts have been defined to provide better routing and defense strategies under different constraints. A double Roman dominating function (DROMDF) on a simple, undirected graph.. is a function g : V -> {0, 1, 2, 3} such that every vertex x is an element of V with g(x) = 0 is adjacent to at least two vertices y(1), y(2) with g(y(1)) = g(y(2)) = 2 or a vertex z(1) with g(z(1)) = 3. Also, a vertex p with g(p) = 1 is adjacent to at least one vertex q(1) with g(q(1)) >= 2. gamma(dR)(G), the double Roman domination number of G, is the smallest possible weight of all possible DROMDFs of G. Determining double Roman domination number of a graph is known to be NP-hard. Hence in this paper, we propose a genetic algorithm based approach for solving double Roman domination problem in which three heuristic algorithms have been proposed and problem specific crossover operator and a feasibility function has been developed. Further, we propose an ant colony optimization algorithm to solve double Roman domination problem. This paper provides an in-depth illustration of two algorithms for solving double Roman domination problem. Effectiveness of the proposed meta-heuristic algorithms is tested on the random graphs generated using NetworkX Erdos-Renyi model, a popular model for graph generation and Harwell-Boeing dataset, a well-known dataset for graph related problems. Further, we compare the results of both the meta-heuristic algorithms and the experimental results show that the proposed meta-heuristic algorithms for solving double Roman domination problem give a near optimal solution in reasonable time. Experimental results also show that the proposed ant colony optimization algorithm for solving double Roman domination problem outperforms genetic algorithm based procedure.
It is shown that partner selection in agile supply chain network can be represented as a directed graph model. This paper considers multi-stages in this process instead of one. The natures of the proposed model enable...
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It is shown that partner selection in agile supply chain network can be represented as a directed graph model. This paper considers multi-stages in this process instead of one. The natures of the proposed model enable us to design a meta-heuristic algorithm - GACA which combined the pros part of ACOA and GA for solving the good path search problem. Computational results show the efficiency of our algorithm in compare to the other techniques.
The artificial neural network (ANN) method is used to study the macroscopic model of an actual water distribution *** the first time,the antcolonyoptimization (ACO) algorithm is implemented to optimize the node numb...
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The artificial neural network (ANN) method is used to study the macroscopic model of an actual water distribution *** the first time,the antcolonyoptimization (ACO) algorithm is implemented to optimize the node numbers of the hidden layers in the ANN *** ANN model contains two hidden layers with a maximum of 64 nodes per *** node number in the hidden layers is transformed into a binary representation using Gray *** doing this,the logical structure of the ACO algorithm is altered from one of two decision points with sixty-four paths per point to one of twelve decision points with two options per *** newly defined logical structure makes better use of the parallel nature of the ACO *** preparations of the input data used in the ANN model are *** study indicates that the ANN method is an attractive alternative to the conventional regression analysis method in modeling water distribution systems.
ECDIS(Electronic Chart Display and Information System) is a real-time navigation system,which integrates the chart display,navigation operations,route calculation and navigation marks,*** provides a great convenience ...
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ISBN:
(纸本)9781509009107
ECDIS(Electronic Chart Display and Information System) is a real-time navigation system,which integrates the chart display,navigation operations,route calculation and navigation marks,*** provides a great convenience for maritime *** planning in ECDIS system plays a significant *** on the principle of intelligent antcolonyalgorithm,and in view of the antcolonyalgorithm is slow convergence speed,easy to fall into local optimal solution,the article uses adaptive pseudo random selection rules,dynamically adjusts volatilization factor p,updates the optimal route of ants pheromone,so as to improve the convergence speed of path planning and the effect of algorithm to achieve the goal of the optimal *** results validate the feasibility of the improved antcolonyalgorithm and its effectiveness.
With the proliferation of wireless sensor networks (WSN), the issues about how to schedule all the sensors in order to maximize the system's working time have been in the spotlight. Inspired by the promising perfo...
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ISBN:
(纸本)9781450334723
With the proliferation of wireless sensor networks (WSN), the issues about how to schedule all the sensors in order to maximize the system's working time have been in the spotlight. Inspired by the promising performance of antcolonyoptimization (ACO) in solving combinational optimization problem, we attempt to apply it in prolonging the life time of WSN. In this paper, we propose an improved version of ACO algorithm to get solutions about selecting exact sensors to accomplish the covering task in a reasonable way to preserve more energy to maintain longer active time. The methodology is based on maximizing the disjoint subsets of sensors, in other words, in every time interval, choosing which sensor to sustain active state must be rational in certain extent. With the aid of pheromone and heuristic information, a better solution can be constructed in which pheromone denotes the previous scheduling experience, while heuristic information reflects the desirable device assignment. Orderly sensor selection is designed to construct an advisable subset for coverage task. The proposed method has been successfully applied in solving limited energy assignment problem no matter in homogenous or heterogeneous WSNs. Simulation experiments have shown it has a good performance in addressing relevant issues.
5G Vehicular Cloud Computing (5G-VCC) infrastructures are evolving rapidly. In a 5G-VCC system, Cloud resources should be efficiently distributed to provide satisfactory Quality of Service (QoS) for modern services wi...
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ISBN:
(纸本)9781450388979
5G Vehicular Cloud Computing (5G-VCC) infrastructures are evolving rapidly. In a 5G-VCC system, Cloud resources should be efficiently distributed to provide satisfactory Quality of Service (QoS) for modern services with increased requirements. Furthermore, the workload should be fairly distributed to the available Virtual Machines (VMs). This paper proposes an algorithm for performing load balancing in Cloud infrastructures that exist in 5G-VCC systems. The algorithm is called Modified antcolonyoptimization (MACO), as its functionality is influenced by the natural behaviour of ants. Specifically, the MACO algorithm assigns a pheromone (weight) value to each VM. Subsequently, for each service request the VM with the highest pheromone is selected in a way similar to the one that ants apply to select optimal routes. The selection of each VM results in the decrement its pheromone value, considering the workload of the assigned service. Evaluation results show that the proposed algorithm outperforms existing load balancing algorithms in terms of the processing time required for serving the user requests.
Relaying communication is a necessary means to improve the reliability of Meter Reading System(MRS) based on Power Line Carrier(PLC),but the searching for relaying path is one of the biggest *** to the characteristics...
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Relaying communication is a necessary means to improve the reliability of Meter Reading System(MRS) based on Power Line Carrier(PLC),but the searching for relaying path is one of the biggest *** to the characteristics of PLC networks,an adaptive automatic relaying method based on the parameters of power line channel state and improved ant colony optimization algorithm is put forward in this *** the proposed algorithm,the restricted candidate list(RCL) strategy utilizing the greed stochastic adaptive searching method is also introduced according to the parameters of *** simulation and experimental results indicate that the algorithm can be adaptive to the channel state's change by updating routing table dynamically,effectively improve the accuracy of relay and the success rate,and improve the search efficiency.
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