A novel scheduling approach of e-learning content on cloud computing infrastructure

Tomić, Denis and Muftić, Osman and Biočić, Berislav (2011) A novel scheduling approach of e-learning content on cloud computing infrastructure. = A novel scheduling approach of e-learning content on cloud computing infrastructure. In: 34th International Convention on Information and Communication Technology, Electronics and Microelectronics, MIPRO 2011, 23-27.05.2011., Opatija; Croatia.

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Abstract

E-learning ecosystem based on cloud computing infrastructure constantly gains a popularity in a wide research and consumer popularity. There are multiple reasons for this, including the dynamic adaptability of clouds to the changing demands, their ability to provide resources per need basis and the support for virtualization. By additionally bringing the robust security and chargeback model in it, the cloud becomes a real next generation engine for all e-learning aspects, including database, application and web layers. However, and especially in a hybrid public cloud environments, the right allocation scheme of an e-learning content is critical if the given service level agreement has to be fulfilled. It is by far not enough to distribute content accordingly to the provided amount of processing power of computational nodes and corresponding storage systems. If the content scheduler does not take into account the throughput of the network communication links, the whole system become saturated with waiting times and the response of the cloud based e-learning system degrades. Our approach is to consider both processing power of computational nodes and communication links. The idea is to minimize SLEM, the magnitude of the second largest eigenvalue of the positive symmetric square matrix with elements representing time activities of computational nodes and communication links in parallel processing environment. It shows that this minimization problem can be recast as a semi-definite optimization problem, with ability to find an optimal load distribution of e-learning content. © 2011 MIPRO.

Item Type: Conference or Workshop Item (Lecture)
Keywords (Croatian): Computational nodes; Computing infrastructures; Dynamic adaptability; E-learning contents; E-learning ecosystem; E-learning systems; Load distributions; Minimization problems; Network communications; Optimization problems; Parallel processing; Processing power; Robust security; Second largest eigenvalue; Service Level Agreements; Square matrices; Storage systems; Virtualizations; Waiting time; Web layer; Whole systems; Communication; Computer systems; E-learning; Eigenvalues and eigenfunctions; Information technology; Microelectronics; Optimization; Scheduling; User interfaces; Cloud computing
Subjects: TECHNICAL SCIENCE
Divisions: 200 Department of Engineering Mechanics
Indexed in Web of Science: No
Indexed in Current Contents: No
Citations SCOPUS: 0 (22.4.2015.)
Date Deposited: 22 Apr 2015 12:15
Last Modified: 22 Apr 2015 12:15
URI: http://repozitorij.fsb.hr/id/eprint/3786

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