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Current education system in our country lacks use of Technology to promote/aid the student in student-teacher interaction, online fees payment, sharing of academic content, etc. By bringing in such ideas to the education system, quality education can be provided to the mass of student population. In the current scenario of technological advancements, a social network for students would help them gain...
The paper describes the creation of a novel cloud broker created to provide efficient cloud brokering services for a government organization in India — the BroCUR. The BroCUR works in a volunteer federated, distributed schema with control being executed using a combination of threshold based metrics and triggers which launch task migration. The novel aspect of the BroCUR is the inclusion of the human...
This paper studies the design and development process of a mobile HTML5 game portal with focus on real- time competitive multiplayer games and a gamified environment to incentive competitiveness between players even outside the games. This project involved several complex elements, among which are the need for the portal to be compatible with most major mobile and desktop browsers and game optimizations...
The research analyzes the functioning of an Autonomic Cloud Broker (ACB) in a real life scenario utilizing a Federated Cloud Infrastructure. The paper analyzes two important use cases that exist while a Cloud Broker enables the provision of services from multiple cloud providers to simultaneously demanding cloud users. Varying, real time load conditions are generated in a live use case on a private...
Cloud based Content Delivery Networks have emerged over the last years as a viable cost-effective alternative to traditional CDNs. In this work we demonstrate a novel surrogate server placement strategy for fostering content delivery within the evolving wireless Cloud environment by combining Social Network Analysis inspired metrics and virtual network embedding strategies. The proposed paradigm,...
Distributed computing system is considered as a fundamental architecture to extend resources such as computation speed, storage capacity, and network bandwidth, which are limited for a single processor. Emerging big data processing techniques like Hadoop take advantages of distributed servers to accomplish scalable parallel computations. Large-scale processing jobs can run on different servers or...
When orchestrating highly distributed and data-intensive Web service workflows the geographical placement of the orchestration engine can greatly affect the overall performance of a workflow. Orchestration engines are typically run from within an organisations' network, and may have to transfer data across long geographical distances, which in turn increases execution time and degrades the overall...
Service-oriented software consists of middleware, such as application servers and runtime engines, into which service applications are deployed. This middleware is often complex and difficult to install. The deployment of services requires the crafting of deployment descriptors and packaging of applications. As a consequence, the installation of service-oriented software systems can be a daunting...
Effective virtualized resource provisioning is one of the most challenging tasks of the cloud computing system. Especially when visits to an online service are rapidly increasing, state-of-the-art approaches cannot response to the workload changes in time. In this paper we introduce SPRNT, a framework that accelerates the resource provisioning. By using SPRNT, the cloud system can quickly adapt to...
In this work, we address problem determination in virtualized clouds. We show that high dynamism, resource sharing, frequent reconfiguration, high propensity to faults and automated management introduce significant new challenges towards fault diagnosis in clouds. Towards this, we propose CloudPD, a fault management framework for clouds. CloudPD leverages (i) a canonical representation of the operating...
The Ajax model of Web applications development has rapidly gained popularity because it promises to bring the richness and responsiveness of desktop applications to the Web. Ajax implementations differ fundamentally from other Web implementations--mainly in making asynchronous requests for parts of a webpage. Techniques routinely used for performance testing traditional Web applications must be modified...
The load on today's service-oriented systems is strongly varying in time. It is advantageous to conserve energy by adapting the number of replicas according to the recent load. Over-provisioning of service replicas is to be avoided, since it increases the operating costs. Under-provisioning of service replicas leads to serious performance degradation and violates service-level agreements. To reduce...
Insider Threat has become one of the most important types of attacks to identify and combat for both government and commercial organizations in recent years. The irreversible financial and security damages that can result from this type of threat have placed Insider Threat among the most important problems in cybersecurity [1]. The complexity of the problem is mainly due to the fact that the attacker...
Business metrics play a critical role in determining the best system-level configuration to achieve an organizational business-level goal. We present a framework for reasoning about business-level implications of malicious attacks affecting information technology (IT) systems that underlie various business processes. Through an exemplar web-based retail company scenario, we demonstrate how to quantify...
Content Delivery Networks (CDNs) are increasingly being used to deliver live streaming on today's Internet. The new application type of live streaming exposes unique characteristics and challenges that require more advanced design of CDN infrastructure. Unlike traditional web-object delivering, which allows CDN content servers to cache contents and thus typically only involves certain CDN servers...
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