Browsing by Author "Parra Arnau, Javier"
Now showing items 21-40 of 49
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Hierarchical categorisation of tags for delicious
Parra Arnau, Javier; Perego, Andrea; Ferrari, Elena; Forné Muñoz, Jorge; Rebollo Monedero, David (2012)
Other
Open AccessIn the scenario of social bookmarking, a user browsing the Web bookmarks web pages and assigns free-text labels (i.e., tags) to them according to their personal preferences. In this technical report, we approach one of ... -
Hierarchical categorisation of web tags for Delicious
Parra Arnau, Javier; Perego, Andrea; Ferrari, Elena; Forné Muñoz, Jorge; Rebollo Monedero, David (2011-11-11)
Research report
Open AccessIn the scenario of social bookmarking, a user browsing the Web bookmarks web pages and assigns free-text labels (i.e., tags) to them according to their personal preferences. The benefits of social tagging are clear – tags ... -
La publicación de trayectorias: un estudio sobre la protección de la privacidad
Guerra Balboa, Patricia; Miranda Pascual, Àlex; Parra Arnau, Javier; Forné Muñoz, Jorge; Strufe, Thorsten (Universidad de Cantabria, 2022)
Conference report
Open AccessEl analisis de las trayectorias encierra numerosas ´ promesas, desde mejoras en la gestion del tr ´ afico hasta recomen- ´ daciones de ruta, o incluso en el desarrollo de infraestructuras. Sin embargo, conocer los lugares ... -
m-Eligibility with minimum counterfeits and deletions for privacy protection in continuous data publishing
Tobar Nicolau, Adrián; Parra Arnau, Javier; Forné Muñoz, Jorge; Pallarès Segarra, Esteve (2024-01-15)
Article
Open AccessContinuous data publishing consists in the republication of updating microdata. The most relevant syntactic notions in continuous data publishing are based on m-invariance. This notion enforces that no user can be distinguished ... -
Measuring online tracking and privacy risks on Ecuadorian websites
Estrada Jiménez, José Antonio; Rodríguez Hoyos, Ana Fernanda; Parra Arnau, Javier; Forné Muñoz, Jorge (2019)
Conference lecture
Open AccessOnline tracking has become a great enabler of massive surveillance so it is now a critical vector for threatening the privacy of users. Despite the benefits of online tracking for personalized advertising, the complexity ... -
Measuring the privacy of user profiles in personalized information systems
Parra Arnau, Javier; Rebollo Monedero, David; Forné Muñoz, Jorge (Elsevier, 2014-04-01)
Article
Restricted access - publisher's policyPersonalized information systems are information-filtering systems that endeavor to tailor information-exchange functionality to the specific interests of their users. The ability of these systems to profile users is, on ... -
Mecanismo para evitar ataques por confabulación basados en code passing
Jáimez Moruno, Marc; Esparza Martín, Óscar; Hernández Gañán, Carlos; Parra Arnau, Javier (2009)
Conference report
Restricted access - publisher's policyLos agentes móviles son entidades software formadas por código, datos, itinerario y estado, que pueden migrar de host en host autónomamente ejecutando su código. A pesar de sus ventajas, los aspectos de seguridad restringen ... -
Medición de la privacidad de perfiles de usuario mediante un add-on de navegador
Estrada, Jose; Rodríguez, Ana; Parra Arnau, Javier; Forné Muñoz, Jorge; Rebollo Monedero, David (2013)
Conference lecture
Restricted access - publisher's policyActualmente, la monitorización de los usuarios en Internet es permanente, y la información obtenida en este proceso es de enorme interés para grandes compañías de publicidad e incluso gobiernos. Además, la gran cantidad ... -
MOBILYTICS project
Parra Arnau, Javier (2023-05-11)
Conference lecture
Open Access -
MyAdChoices: bringing transparency and control to online advertising
Parra Arnau, Javier; Achara, Jagdish Prasad; Castelluccia, Claude (2017-03)
Article
Open AccessThe intrusiveness and the increasing invasiveness of online advertising have, in the last few years, raised serious concerns regarding user privacy and Web usability. As a reaction to these concerns, we have witnessed the ... -
Nuevo criterio para la estimación de información de estado de certificados en MANET
Muñoz Tapia, José Luis; Parra Arnau, Javier; Hernández Gañán, Carlos; Jáimez Moruno, Marc (Universidad Politécnica de Cartagena, 2009)
Conference report
Restricted access - publisher's policyIn general, certificate status validation is a critical operation but it is particularly complex in Mobile Ad-hoc Networks (MANETs). MANET users require solutions to manage both the lack of fixed infrastructure inside ... -
Nuevo criterio para la estimación de información de estado de certificados en MANET
Parra Arnau, Javier (Universitat Politècnica de Catalunya, 2009)
Master thesis
Open AccessEn general, la validación del estado de certificados es una operación crítica, que adquiere una mayor complejidad en las redes móviles ad-hoc (Mobile Ad-hoc Networks, MANETs). Los usuarios de las redes MANET precisan ... -
On the cost-effectiveness of mass surveillance
Parra Arnau, Javier; Castelluccia, Claude (Institute of Electrical and Electronics Engineers (IEEE), 2018-08)
Article
Open AccessIn recent times, we have witnessed an increasing concern by governments and intelligence agencies to deploy mass-surveillance systems that help them fight terrorism. Although a government may be perfectly legitimate to do ... -
On the measurement of privacy as an attacker's estimation error
Rebollo Monedero, David; Parra Arnau, Javier; Diaz, Claudia; Forné Muñoz, Jorge (2012)
Article
Open AccessA wide variety of privacy metrics have been proposed in the literature to evaluate the level of protection offered by privacy enhancing-technologies. Most of these metrics are specific to concrete systems and adversarial ... -
On the privacy–utility trade-off in differentially private hierarchical text classification
Wunderlich, Dominik; Bernau, Daniel; Aldà, Francesco; Parra Arnau, Javier; Strufe, Thorsten (Multidisciplinary Digital Publishing Institute, 2022-11-04)
Article
Open AccessHierarchical text classification consists of classifying text documents into a hierarchy of classes and sub-classes. Although Artificial Neural Networks have proved useful to perform this task, unfortunately, they can leak ... -
On the regulation of personal data distribution in online advertising platforms
Estrada Jiménez, José Antonio; Parra Arnau, Javier; Rodríguez Hoyos, Ana Fernanda; Forné Muñoz, Jorge (Elsevier, 2019-03)
Article
Open AccessOnline tracking is the key enabling technology of modern online advertising. In the recently established model of real-time bidding (RTB), the web pages tracked by ad platforms are shared with advertising agencies (also ... -
Online advertising: analysis of privacy threats and protection approaches
Estrada, José; Parra Arnau, Javier; Rodríguez Hoyos, Ana Fernanda; Forné Muñoz, Jorge (2016-12-27)
Article
Open AccessOnline advertising, the pillar of the “free” content on the Web, has revolutionized the marketing business in recent years by creating a myriad of new opportunities for advertisers to reach potential customers. The current ... -
Optimized, direct sale of privacy in personal data marketplaces
Parra Arnau, Javier (2018-01)
Article
Open AccessVery recently, we are witnessing the emergence of a number of start-ups that enables individuals to sell their private data directly to brokers and businesses. While this new paradigm may shift the balance of power between ... -
Optimizing the design parameters of threshold pool mixes for anonymity and delay
Rebollo Monedero, David; Parra Arnau, Javier; Forné Muñoz, Jorge; Díaz Martínez, María Claudia (2014-07-04)
Article
Restricted access - publisher's policyThe provision of content confidentiality via message encryption is by no means sufficient when facing the significant privacy risks present in online communications. Indeed, the privacy literature abounds with examples of ... -
Pay-per-tracking: a collaborative masking model for web browsing
Parra Arnau, Javier (2017-04)
Article
Open AccessWeb tracking is the key enabling technology of modern online advertising and, at the same time, the source of serious privacy concerns. In recent years, we have witnessed the emergence of a variety of technologies whose ...