Eduardo Souto

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The miniaturization of hardware components has lead to the development of Wireless Sensor Networks (WSN) and networked-applications over them. Meanwhile, middleware systems have also been proposed in order to both facilitating the development of these applications and providing common application services. The development of middleware for sensor networks,(More)
A wireless sensor network (WSN) consists of a large number of small devices with computational power, wireless communication and sensing capability. These networks have been developed for a wide range of applications, such as habitat monitoring, object tracking, precision agriculture, building monitoring and military systems. Meanwhile, middleware systems(More)
The Internet of Things (IoT) application development is a complex task that requires a wide range of expertise. Currently, the IoT community lacks a development toolkit that enables inexperienced developers to develop IoT prototypes rapidly. Filling this gap, we propose a development toolkit based on a model-driven approach, called IoT Link. IoT Link allows(More)
The last two decades have witnessed major advances in the wireless communication area, which have been supported by the increasing capabilities of portable devices, such as notebooks, tablets, cellular phones, smart phones and personal digital assistants (PDAs). Today, they provide a rich computing environment and incorporate different radio technologies.(More)
This research is of the view that only tightly coordinated work among security components as we know them today including firewalls, traffic analysis modules, intrusion detection systems, antivirus remediation systems, etc., is likely to take us closer to a more effective solution against some security threats. A structured Robust IP (RIP) access(More)
Knowing available energy in each part of a wireless sensor networks (WSN) is undoubtedly essential information. A simple approach to achieve this would be for sensor nodes to periodically report to the sink node on their available energy. This approach is expensive however in terms of energy consumption. In this work we apply several sampling techniques for(More)
In recent years, the consumption of electricity has increased considerably in the industrial, commercial and residential sectors. This has prompted a branch of research which attempts to overcome this problem by applying different information and communication technologies, turning houses and buildings into smart environments. In this paper, we propose and(More)
Automatic nudity detection strategies play an important role in solutions focusing on controlling access to inappropriate content. These strategies usually apply filter or similar approaches in order to detect nudity in digital images. In this paper we propose a strategy for nudity detection based on applying image zoning. Moreover, we perform feature(More)