Browsing by Author "Riofrío Machado, Xavier Fernando"

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A middleware for managing the heterogeneity of data provining from IoT devices in ambient assisted living environments
(Institute of Electrical and Electronics Engineers Inc., 2020) Cedillo Orellana, Irene Priscila; Riofrío Machado, Xavier Fernando; Prado Cabrera, Katerine Daniela; Orellana, Marcos
Internet of Things (IoT) has been growing exponentially in the commercial market in recent years. It is also a fact that people hold one or more computing devices at home. Many of them have been developed to operate through internet connectivity with cloud computing technologies that result in the demand for fast, robust, and secure services. In most cases, the lack of these services makes difficult the transfer of data to fulfill the devices' purposes. Under these conditions, an intermediate layer or middleware is needed to process, filter, and send data through a more efficient alternative. This paper presents the adaptive solution of a middleware architecture as an intermediate layer between smart devices and cloud computing to enhance the management of the heterogeneity of data provining from IoT devices. The proposed middleware provides easy configuration, adaptability, and bearability for different environments. Finally, this solution has been implemented in the healthcare domain, in which IoT solutions are deployed into Ambient Assisted Living (AAL) environments.
Sistema de recomendación de contenido para TV digital basado en ontologías
(2014) Avila Montalvo, Johnny Javier; Riofrío Machado, Xavier Fernando; Palacio Baus, Kenneth Samuel
The great developments in the technological area and especially in the area of the Digital Television have generated new researching lines, and this thesis is an example of that. This work presents a helping tool for Digital Television users providing the fastest way to get information about the programs they observe and which they like. However, the actual problem occurs since the Digital Television broadcasters not always give enough information to users about the programs, which is a problem because they use other information sources wasting worthy time. A solution to that problem is developed in this work, since the television and the huge and available information in the internet are integrated by using semantic technologies in order to let users get a complete information about the programs they want to know. Especially this thesis looks for enriching extra information about the programs transmitted by the different television channels by using the semantic web methods and techniques to get helpful information from ontological and no ontological repositories. The final result will be an ontological data base containing detailed program information.
The Zero-day attack: deployment and evolution
(2021) Merchán Lima, Jorge Luis; Tello Oquendo, Luis Patricio; Astudillo Salinas, Darwin Fabián; Riofrío Machado, Xavier Fernando
In cybersecurity and computer science, the term “zero-day” is commonly related to troubles, threats, and hazards due to the lack of knowledge, experience, or misunderstanding. A zero-day attack is generally considered a new vulnerability with no defense; thus, the possible attack will have a highrisk probability, and a critical impact. Unfortunately, only a few surveys on the topic are available that would help understand these threats, which are not enough to construct new solutions to detect, prevent, and mitigate them. In this paper, it is conducted a review of the zero-day attack, how to understand its real impact, and a few different accessible solutions nowadays. This study introduces a useful reference that provides researchers with knowledge to understand the current problem concerning zero- days attacks; hence they could develop solutions for facing them.