A File Recommendation Model For Cloud Storage Systems

The technological development in recent years has experienced the exponentially growth of the digital universe, part of this digital universe lies stored in cloud storage systems. With each day, more of these systems come out, offering data storage in a distributed manner with the proposal to provide high availability rate, what has driven more and more users who have migrated your data to the cloud. However, the large amount of files stored in these systems makes it difficult to filter relevant content, requiring time and labor by the user in searching for files with similar content to your preferences. Face of this scenario, this study proposes a model for recommendation of files in cloud storage systems, which aims to use cloud features associated with the technique of content-based recommendation

Um Modelo de Segurança para o Canal de Interatividade da TV Digital: Arquitetura e Implementação

The possibility of executing applications that can access Internet through Interactive Digital TV brings the necessity of protecting some information that are sent by these applications, e.g., the credit card number. This work, developed as a part of the Brazilian Digital TV System, presents a security model for the interactive channel (channel that makes possible the Internet access) of Digital TV, considering the processing and storage constraints of the device used for this kind of TV: the Set-Top Box (STB). An implementation of this model is also presented, in the sense of showing the feasibility and reliability of the model

Accounting Models for Cloud Computing: A Mapping Study

<p>SILVA, F. A. P. ; SILVEIRA NETO, P. A. M. ; ASSAD, R. E. ; GARCIA, Vinicius Cardoso ; TRINTA, Fernando Antonio Mota . Accounting Models for Cloud Computing: A Mapping Study. In: International Conference on Grid Computing and Applications (GCA 2012), 2012, Las Vegas. Proceedings of the International Conference on Grid Computing and Applications (GCA 2012), 2012.</p> <p>Abstract. Cloud services change the economics of computing by enabling users to pay only for the capacity that they actually use. In this context, cloud providers have their own accounting models including their billing mechanisms and pricing schemes to achieve this efficient pay-as-you-go model. Thus it is important to study this heterogeneity aiming to map out the existing accounting models to become possible new proposals or future standardizations. Therefore, this paper focuses on mapping accounting models for cloud computing, where a mapping study process was undertaken, and a total of 23 primary studies were considered, which evidenced 5 accounting models, 23 different pricing scheme types and 4 primary studies related to SLA (Service-Level Agreement) composition. Although the significant number of studies found address grid computing it was possible to identify one accounting model which was very complete from different points of view for cloud environments.</p