Gabriel Huecas

Gabriel Huecas
Universidad Politécnica de Madrid | UPM · Departamento de Ingeniería de Sistemas Telemáticos

PhD

About

57
Publications
8,254
Reads
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407
Citations
Additional affiliations
November 1997 - present
Universidad Politécnica de Madrid
Position
  • Professor (Associate)
September 1988 - October 1997
Universidad Politécnica de Madrid
Position
  • Researcher

Publications

Publications (57)
Preprint
Full-text available
The rise of AI and the Internet of Things is accelerating the digital transformation of society. Mobility computing presents specific barriers due to its real-time requirements, decentralization, and connectivity through wireless networks. New research on edge computing and tiny machine learning (tinyML) explores the execution of AI models on low-p...
Article
Full-text available
The security of probabilistic data structures is increasingly important due to their wide adoption in many computing systems and applications. In particular, the security of approximate membership check filters such as Bloom or cuckoo filters has been recently studied showing how an attacker can degrade the filter performance in some settings. In t...
Article
Full-text available
The rise of AI and the Internet of Things is accelerating the digital transformation of society. Mobility computing presents specific barriers due to its real-time requirements, decentralization, and connectivity through wireless networks. New research on edge computing and tiny machine learning (tinyML) explores the execution of AI models on low-p...
Preprint
Full-text available
The aerospace sector is one of the many sectors in which large amounts of data are generated. Thanks to the evolution of technology, these data can be exploited in several ways to improve the operation and management of industrial processes. However, to achieve this goal, it is necessary to define architectures and data models that allow to manage...
Preprint
We study the benefits and challenges of using Linked Open Data in smart city applications and propose a set of open source, highly scalable tools within the case of a public-rental bicycle system, which can act as a reference guide for other smart city applications.
Article
We study the benefits and challenges of using Linked Open Data in smart city applications and propose a set of open source, highly scalable tools within the case of a public-rental bicycle system, which can act as a reference guide for other smart city applications.
Article
The collaboration of the real world and the virtual world, known as Digital Twin, has become a trend with numerous successful use cases. However, there are challenges mentioned in the literature that must be addressed. One of the most important issues is the difficulty of collaboration of Digital Twins due to the lack of standardization in their im...
Article
The aerospace sector is one of the many sectors in which large amounts of data are generated. Thanks to the evolution of technology, these data can be exploited in several ways to improve the operation and management of industrial processes. However, to achieve this goal, it is necessary to define architectures and data models that allow to manage...
Article
Full-text available
Although many courses in computer science and software engineering require students to work on practical assignments, these are usually toy projects that do not come close to real professional developments. As such, recent graduates often fail to meet industry expectations when they first enter the workforce. In view of the gap between graduates’ s...
Article
Full-text available
To provide web services adapted to the users’ functional capabilities, diversity must be considered from the conceptualization and design phases of the services’ development. In previous work, we proposed a model that allows the provisioning of adapted interfaces based on users’ identity and their functional attributes to facilitate this task to so...
Book
La Teoría de la Información, junto con otras disciplinas, es uno de los pilares o fundamentos de la comunicación moderna, tanto a distancia (líneas de comunicación) como en el tiempo (almacenamiento de información). En este sentido, la Teoría de la Información intenta responder dos preguntas básicas: ¿cuál es la descripción más compacta para una de...
Article
Full-text available
In recent years, a new business paradigm has emerged which revolves around effectively extracting value from data. In this scope, providing a secure ecosystem for data sharing that ensures data governance and traceability is of paramount importance as it holds the potential to create new applications and services. Protecting data goes beyond restri...
Conference Paper
Full-text available
We are experiencing a new digital revolution in which data are becoming a key pillar for business and industry. Promoting data sharing, without compromising data sovereignty and traceability, is fundamental since it provides a heterogeneous ecosystem with the potential to enrich the variety of applications and services that take part in this digita...
Article
Heterogeneous battery powered devices in the new Internet of Things (IoT) paradigm enable low computer resource elements to wirelessly and seamlessly communicate with other components. However, battery performance is currently a key issue, influenced by multiple factors such as data transmission time and use of computational resources. There are so...
Conference Paper
Authoring tools are powerful systems in the area of e-Learning that make easier for teachers to create new learning objects by reusing or editing existing educational resources coming from learning repositories or content providers. However, due to the overwhelming number of resources these tools can access, sometimes it is difficult for teachers t...
Article
Abstract Proactivity has recently gained much attention in the area of cyber physical systems as sensing the users’ real world environment is needed to achieve it. Proactive recommenders are a good example because they push recommendations to the user when the current situation seems appropriate, without explicit user request. Evaluating whether us...
Conference Paper
Recommender systems in e-learning have proved to be powerful tools to find suitable educational material during the learning experience. But traditional user request-response patterns are still being used to generate these recommendations. By including contextual information derived from the use of ubiquitous learning environments, the possibility...
Article
Full-text available
In the current techno-social environment the importance of providing personalized content for users of social platforms, continually adapting to their needs, is key to the success of the existing platforms. Recommender systems play a crucial role in this regard, but in many cases the level of customization provided is not enough. This article discu...
Conference Paper
A proactive recommender system pushes recommendations to the user when the current situation seems appropriate, without explicit user request. This is suitable in e-Learning scenarios in which a great amount of learning objects are available but it is difficult to find them according to the user's needs. In this paper, we present a model for genera...
Book
La Teoría de la Información, junto con otras disciplinas, es uno de los pilares o fundamentos de la comunicación moderna, tanto a distancia (líneas de comunicación) como en el tiempo (almacenamiento de información). En este sentido, la Teoría de la Información intenta responder dos preguntas básicas: ¿cuál es la descripción más compacta para una de...
Conference Paper
Full-text available
Traditional E-Commerce applications have evolved in the last years due to the growth of the mobile environment, creating a new research area known as U-Commerce. The application of these techniques in the banking environment has been a direct outcome in order to enhance the services offered to end users. In this paper, we present a context-aware mo...
Article
Full-text available
En este demostrador presentaremos el funcionamiento de un sistema de colaboración multimedia basado en la utilización de clientes ligeros desplegados en la web. El objetivo de este sistema es definir una nueva arquitectura de conferencias en Internet centrada en la facilidad de uso y de instalación, dotando de conectividad total al usuario final co...
Conference Paper
Full-text available
This paper presents the concept and preliminary experiments of a system for assessing on the Quality of Service of multimedia flows. The goal is to devise a mechanism that allows a service provider to take action whenever poor quality of service is detected in the delivery of multimedia flows. Such procedure is fully automatic since it is based on...
Article
Full-text available
This paper proposes the creation of an architectural layer for integration of all the resources and members participating in a given collaborative activity into a unified framework which is referred as the Collaborative Environment Integration Layer (CEIL). This layer is considered a necessary step for integrating with open standards all the collab...
Book
Se trata de un libro de ejercicios de programación en Java 2 diseñado para complementar a los libros de teoría de que ya disponemos siguiendo el método didáctico de la serie Schaum. La filosofía de elaboración del libro será mantener, por una parte, el espíritu de los libros de la colección a la que se incorpora y por otra, servir de material de ap...
Conference Paper
Isabel is a P2P like multipoint group collaboration tool for the Internet, which implements an innovative service concept for synchronous collaborations based on a flexible and programmable floor control. This approach leads to a more natural and effective management of collaboration sessions. The flexible and programmable floor control incorporate...
Article
UNIVERSAL IST Project which supports both, the exchange of reusable educational materials based on open standards, as well as the collaboration of educators over the network in the realization of educational activities. The Isabel CSCW application is a group collaboration tool for the Internet supporting audience interconnection over the network, s...
Conference Paper
Full-text available
EducaNext is an educational mediator created within the UNIVERSAL IST Project which supports both, the exchange of reusable educational materials based on open standards, as well as the collaboration of educators over the network in the realization of educational activities. The Isabel CSCW application is a group collaboration tool for the Internet...
Article
Full-text available
New Generation Internet will be based on new IP protocol version design to solve addressing problem and provide new functionalities. This paper describes guidelines to help the porting of applications to the new protocol IPv6, especially during the transition period. ISABEL collaborative application is used to exemp lify the porting methodology. IS...
Article
Many multimedia applications have been developed during the past years for supporting co-operative work, tele-teaching and many other activities involving groups of persons distributed at different locations and communicating by means of telecommunication networks. Most of this effort has been devoted, till now, to deal with technical problems: net...
Conference Paper
Full-text available
This paper describes the main issues arising during the port of the Isabel CSCW application to IPv6. Isabel has been ported to IPv6 in the European IST-1999-20393 LONG project. The port was validated in the distribution of the Madrid Global IPv6 Summit in March 2002. The distribution of the Global IPv6 Summit was a large trial where access to the c...
Conference Paper
This paper describes the main issues arising during theport of the Isabel CSCW application to IPv6. Isabel hasbeen ported to IPv6 in the European IST-1999-20393LONG project. The port was validated in the distributionof the Madrid Global IPv6 Summit in March 2002. Thedistribution of the Global IPv6 Summit was a large trialwhere access to the confere...
Article
Full-text available
EducaNext es un portal multilingüe de colaboración académica, donde instituciones de educación superior, de investigación y profesionales pueden colaborar e intercambiar recursos educativos y de conocimiento. El servicio soporta comunidades temáticas, intercambio de materiales educativos y de actividades educativas. La arquitectura del portal es ab...
Chapter
This document describes the design, architecture and implementation of the Isabel live delivery platform integrated in the Universal Brokerage Platform. Isabel enables live delivery of Educational Learning Activities, such as courses, lectures, talks or interactive collaborations over the Internet. We will discuss both the design decisions and the...
Conference Paper
In this chapter we discuss a process algebraic approach to specification and introduce the LOTOS language and its extension, E-LOTOS.
Book
Este libro ha sido escrito desde la experiencia docente de sus autores. Por ello, la estructura, contenidos, modo de presentación, etc. va dirigido a que la persona que vaya a utilizar este libro para aprender a programar en Java, consiga adquirir los conocimientos de programación adecuados. El libro va dirigido a enseñar los fundamentos de la prog...
Conference Paper
Full-text available
ISABEL provides a platform for development of new multimedia services, including distributed conferences, with presentations and attendances located in rooms at different sites. ISABEL permits the definition of new services adapted to the specific requirements of each case. It builds its own communication network providing a uniform Quality of Serv...
Conference Paper
In December 1996, a project called LVARTS was finished and delivered to the ESA. The goal was to validate a real system, namely ATAC, an ADA coprocessor chip, running on a real board. The system was big enough to develop specific methodologies and tools, which are described in this paper. LOTOS was chosen to formally specify ATAC. The formal specif...
Article
Full-text available
This paper describes the use of ISABEL in an heterogeneous network context where different QoSs are used to connect different participants in a real-time interactive collaboration based on videoconferencing. As ISABEL uses TCP-UDP/IP to interconnect different network technologies and no QoS control exists, a QoS adaptation function has been added:...
Article
Full-text available
In this Experience Report about "LOTOS Validation of an ADA Runtime System" Project (LVARTS), being carried out by CRISA, GMV and DIT-UPM, the Methodology of Complex Systems Validation using Formal Description Techniques (FDTs) is described, as well as its Application to ATAC (the Ada co-processor), its intermediate results and the point of view of...
Conference Paper
This paper focuses on the process of generating test suites for conformance testing. It aims to formalize the stages that go from a formal specification, through test purpose definition, into a test suite. We shall provide a language to formalize test purposes, and an algorithm that permits to merge the reference specification, plus the test purpos...
Conference Paper
A description is presented of the formal specification and implementation of the D-channel layer-3 protocol used in the user-network interface of the integrated services digital network. This protocol is informally defined in the CCITT Recommendation Q.931. The formal description technique LOTOS has been used to formalize this definition and to der...
Article
Full-text available
This paper proposed the use of RDF language for describing infor-mation related to the definition, deployment and operation of an advanced mul-timedia service. This service is provided through an overlay network which is also described using this formalism. Starting from a real problem we faced to-day we proposed the use of RDF in order to solve so...
Article
Full-text available
Este artículo describe el diseño e implementación de un sistema de colaboración multimedia basado en la utilización de clientes ligeros desplegados en la web. Su objetivo es definir una nueva arquitectura de conferencias en Internet centrada en la facilidad de uso y de instalación, dotando de conectividad total al usuario final con el resto de part...
Article
Full-text available
Los sistemas de videoconferencia han utilizado tradicionalmente protocolos propietarios que los impedían interoperar. Sin embargo, en los últimos años se está imponiendo la tendencia a usar protocolos abiertos para solucionar este problema. Este artículo describe la arquitectura de una pasarela genérica para acceder desde los clientes más típicos a...

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