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Although OSNs are major and growing large scale web applications, there is still a lack of workload models and tools for performance evaluation and testability studies. This fact motivates us to develop a general purpose benchmark for evaluating the main hardware and software resources associated to this kind of applications. To this end, we have developed a flexible workload model based on interactive...
Uses, applications and functionalities of Online Social Network (OSN) are continuously changing and adapting to the new habits of users. The massive adoption of smart mobile devices and the appearance of new roles such as community managers have had a strong influence in the wide use of these networks among all sectors of population regardless of age, gender or socio-economic status. Consequently,...
Wind power is usually given priority in electricity markets by assigning a zero price to its expected output during the settlement process. The more wind power is to be incorporated into the market, the less number of conventional units of output will be required to supply the demand, resulting in an expected drop in electricity prices. Lower electricity prices are good in the long-term for all entities...
The process of price formation in an electricity market is an extremely complex one in practice due to different endogenous factors, namely generator gaming, unexpected out-ages and transmission congestion, among others. As a result, the market clearing prices are of stochastic nature, bringing about uncertainty and risk to all participants. In this work, the role of the demand as determining factor...
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