Cristiano André da Costa

Início/Cristiano André da Costa

Towards Enabling Live Thresholding as Utility to Manage Elastic Master-Slave Applications in the Cloud

The elasticity feature of cloud computing has been proved as pertinent for parallel applications, since users do not need to take care about the best choice for the number of processes/resources beforehand. To accomplish this, the most common approaches use threshold-based reactive elasticity or time-consuming proactive elasticity. However, both present at least one problem related [...]

ElCity: an Elastic Multilevel Energy Saving Model for Smart Cities

As a result of rural and suburban migration to the cities, urban life has become a significant challenge for citizens and, particularly, for city administrators who must manage the sustainable use of resources such as energy, water, and transportation. Smart cities are the biggest vision to efficiently address these challenges through a real-time monitoring, providing [...]

GTTracker: Location-aware hierarchical model for identifying M-commerce business opportunities

he increased adoption of electronic commerce for selling products and services creates a new channel between consumers and vendors. Commonly, e-commerce platforms are assembled as proprietary and centralized solutions. This method has a high financial cost and slows the entry of both middle and small-sized companies into this communication channel. In this context, this article [...]

Personal Health Records: A Systematic Literature Review

Information and communication technology (ICT) has transformed the health care field worldwide. One of the main drivers of this change is the electronic health record (EHR). However, there are still open issues and challenges because the EHR usually reflects the partial view of a health care provider without the ability for patients to control or [...]

OmniPHR: A Distributed Architecture Model to Integrate Personal Health Records

The advances in the Information and Communications Technology (ICT) brought many benefits to the healthcare area, specially to digital storage of patients’ health records. However, it is still a challenge to have a unified viewpoint of patients’ health history, because typically health data is scattered among different health organizations. Furthermore, there are several standards for [...]

Brokel: Towards enabling multi-level cloud elasticity on publish/subscribe brokers

Internet of Things networks together with the data that flow between networked smart devices are growing at unprecedented rates. Often brokers, or intermediaries nodes, combined with the publish/subscribe communication model represent one of the most used strategies to enable Internet of Things applications. At scalability viewpoint, cloud computing and its main feature named resource elasticity [...]

A Semantic-Based Model for Triage Patients in Emergency Departments

Triage is a process performed in an emergency department that aims to sort patients according to their need for care. When performed speedily and correctly, this process can potentially increase the chances of survival for a patient with serious complications. This study aims to develop a computer model, called UbiTriagem, which supports the process of [...]

Enhancing performance of IoT applications with load prediction and cloud elasticity

Elasticity is one of the most important services of cloud computing, referring to the ability to add or remove resources according to the needs of the application or service. In particular to the Internet of Things (IoT) scope, the use of this facility becomes pertinent since IoT requires a middleware that should be capable to [...]

PEPContextual: definição de um prontuário eletrônico de paciente ciente de contexto

A computação móvel pode ser definida como informação na ponta dos dedos a qualquer hora, em qualquer lugar e avança como uma realidade nas tarefas e atividades das pessoas, em decorrência da popularização e diversificação de dispositivos móveis e redes sem fio. Faz-se importante então, desenvolver modelos que permitam não somente compartilhar dados clínicos, mas [...]

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