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A Service Level Agreement (SLA) is a legal contract between any two parties to ensure an adequate Quality of Service (QoS). Most research on SLAs has concentrated on protecting the user data through encryption. However, these methods can not supervise a cloud service provider (CSP) directly. In order to address this problem, we propose a privacy-based SLA violation detection model for cloud computing...
Natural and man-made disasters are constantly occurring leading to human casualties, infrastructure destruction and financial losses. Volunteers and volunteer organizations play a significant role in each and every phase of disaster management. Therefore, selecting and retaining skilled, motivated and able volunteers becomes important. Existing ICT based solutions focus on resource allocation, team...
Current distributed applications offer a variety of flexible and convenient services through the Internet to users from different geographic locations and also support communications among them. However, security and trust are key concerns in such applications as users in such an environment are unknown to each other. Trust management systems aim to decrease the risks in such applications and protect...
In open file-sharing P2P systems, there is generally no direct control or constraint on the participation of peers. Thus, Churn and Free-Riding become great challenges to these systems. This paper proposes a reputation management system based on sustained online duration (SOD-based system) to optimize the resources utilization in file-sharing P2P systems. In the SOD-based system, peers can enhance...
Trust and reputation have been recognized as a key issue in the area of multi-agent systems. And till now, a number of researchers have, in different perspectives, reviewed/surveyed the notions, techniques or models of trust and reputation. However, the notion of trust and reputation still remains somewhat vague, and the techniques and model is yet understood in a disunited way. This paper categorizes...
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