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      • Task Scheduling Using PSO Algorithm in Cloud Computing Environments

        Ali Al-maamari,Fatma A. Omara 보안공학연구지원센터 2015 International Journal of Grid and Distributed Comp Vol.8 No.5

        The Cloud computing has become the fast spread in the field of computing, research and industry in the last few years. As part of the service offered, there are new possibilities to build applications and provide various services to the end user by virtualization through the internet. Task scheduling is the most significant matter in the cloud computing because the user has to pay for resource using on the basis of time, which acts to distribute the load evenly among the system resources by maximizing utilization and reducing task execution Time. Many heuristic algorithms have been existed to resolve the task scheduling problem such as a Particle Swarm Optimization algorithm (PSO), Genetic Algorithm (GA), Ant Colony Optimization (ACO) and Cuckoo search (CS) algorithms, etc. In this paper, a Dynamic Adaptive Particle Swarm Optimization algorithm (DAPSO) has been implemented to enhance the performance of the basic PSO algorithm to optimize the task runtime by minimizing the makespan of a particular task set, and in the same time, maximizing resource utilization. Also, .a task scheduling algorithm has been proposed to schedule the independent task over the Cloud Computing. The proposed algorithm is considered an amalgamation of the Dynamic PSO (DAPSO) algorithm and the Cuckoo search (CS) algorithm; called MDAPSO. According to the experimental results, it is found that MDAPSO and DAPSO algorithms outperform the original PSO algorithm. Also, a comparative study has been done to evaluate the performance of the proposed MDAPSO with respect to the original PSO.

      • Issues Related to Employees at Telecommunication Companies in Yemen and the Role of Management Information Systems in Solving It

        Yaser Hasan Al-Mamary,Alina Shamsuddin,Nor Aziati Abdul Hamid,Mohammed Hasan Al-Maamari 보안공학연구지원센터 2015 International Journal of Hybrid Information Techno Vol.8 No.12

        In this days, organizations invest in management information systems because they provide economic value to the business. While the adoption of management information systems in the organizations, especially in Yemen is still dealing with issues in field of successful adoption. In other hands, the Telecommunications industry today is a key enabler of productivity across economies and societies. In context of Yemen, the telecommunication sector is a strategic and vital sector being of direct link with the citizen and public and private institutions alike. The sector has witnessed substantial change and developments during the last ten years. However, There are a lot of issues in telecommunication companies in Yemen. This paper aims to shed some light on issues related to employees at telecommunication companies in Yemen, and the role of management information systems in solving these issues.

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