Sergio Roberto Villarreal

Universidade Federal de Santa Catarina | UFSC · Departamento de Informática e Estatística

Cloud computing and green IT are two areas of computer science that are receiving increasing attention and are considered a priority for the development of computer systems. Green Cloud Computing approach takes the concepts of the two areas with the goal of providing a flexible and efficient computing environment. This article presents the fundamen...

With the increasing amount of personal data stored and processed in the cloud, economic and social incentives to collect and aggregate such data have emerged. Therefore, secondary use of data, including sharing with third parties, has become a common practice among service providers and may lead to privacy breaches and cause damage to users since i...

With the increasing amount of personal data stored and processed in the cloud, economic and social incentives to collect and aggregate such data have emerged. Therefore, secondary use of data, including sharing with third parties, has become a common practice among service providers and may lead to privacy breaches and cause damage to users since i...

The concepts proposed by Green IT have changed the priorities in the design of information systems and infrastructure, adding to traditional performance and cost requirements, the need for efficiency in energy consumption. The approach of Green Cloud Computing builds on the concepts of Green IT and Cloud in order to provide a flexible and efficient...

This paper presents some scope, context, proposals and solutions related with the following topics: Decision- Theoretic Planning for Cloud Computing; An Architecture for Risk Analysis in Cloud; Risk-based Dynamic Access Control for a Highly Scalable Cloud Federation; Challenges of Operationalizing PACS on Cloud Over Wireless Networks; Environment,...

The aim of green cloud computing is to achieve a balance between resource consumption and quality of service. This work introduces the distributed system management model, analyses the system’s behavior, describes the operation principles, and presents case study scenarios and some results. We extended CloudSim to simulate the organization model ap...

The concepts proposed by Green IT have changed the priorities in the design of information systems and infrastructure, adding to traditional performance and cost requirements, the need for efficiency in energy consumption. The approach of Green Cloud Computing builds on the concepts of Green IT and Cloud in order to provide a flexible and efficient...

The concepts proposed by Green IT have changed the priorities in the design of information systems and infrastructure, adding to traditional performance and cost requirements, the need for efficiency in energy consumption. The approach of Green Cloud Computing builds on the concepts of Green IT and Cloud in order to provide a flexible and efficient...