Exploració per autor "Nin Guerrero, Jordi"
Ara es mostren els items 10-29 de 42
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DEX: High-performance exploration on large graphs for information retrieval
(2007)
Text en actes de congrés
Accés restringit per política de l'editorialLink and graph analysis tools are important devices to boost the richness of information retrieval systems. Internet and the existing social networking portals are just a couple of situations where the use of these tools ... -
Digital watermarking techniques and security issues in the information and communication society
(CRC Press and IEEE Press, 2013)
Text en actes de congrés
Accés obertDigital watermarking is the process of embedding information into a noise-tolerant digital signal such as image or audio data. Such information is embedded in a way difficult to be removed in order to easily identify ... -
Distributed privacy-preserving methods for statistical disclosure control
(2010)
Article
Accés restringit per política de l'editorialStatistical disclosure control (SDC) methods aim to protect privacy of the confidential information included in some databases, for example by perturbing the non-confidential parts of the original databases. Such methods ... -
Dynamic reputation-based trust computation in private networks
(2009)
Report de recerca
Accés obertThe use of collaborative networks services in general, and web based social networks (WBSN) services in particular, is today increasing and, therefore, the protection of the resources shared by network participants is ... -
Energy-efficiency and security issues in the Cisco Nexus virtual distributed switching
(Institute of Electrical and Electronics Engineers (IEEE), 2012)
Text en actes de congrés
Accés restringit per política de l'editorialVirtualization technologies have brought with them the promise of increased security and energy saving. Such was the case with the Cisco Nexus virtual switching environment. However, possible security issues of this ... -
Fuzzy measures and integrals in re-identification problems
(2006)
Text en actes de congrés
Accés obertIn this paper we give an overview of our approach of using aggregation operators, and more specifically, fuzzy integrals for solving re-identification problems. We show that the use of Choquet integrals are suitable for ... -
How to group attributes in multivariate microaggregation
(2008-04-01)
Article
Accés restringit per política de l'editorialMicroaggregation is one of the most employed microdata protection methods. It builds clusters of at least k original records, and then replaces these records with the centroid of the cluster. When the number of attributes ... -
Human pose completion in partial body camera shots
(2023-07-28)
Article
Accés restringit per política de l'editorialMany actual images contain partial body camera shots, in which a significant part of the body is not visible. This issue is especially prevalent in film images, where less than 10% are full-body shots. Most 2D human pose ... -
Improving microaggregation for complex record anonymization
(Springer Verlag, 2008)
Text en actes de congrés
Accés restringit per política de l'editorialMicroaggregation is one of the most commonly employed microdata protection methods. This method builds clusters of at least k original records and replaces the records in each cluster with the centroid of the cluster. ... -
Increasing polynomial regression complexity for data anonymization
(IEEE Computer Society, 2007)
Text en actes de congrés
Accés obertPervasive computing and the increasing networking needs usually demand from publishing data without revealing sensible information. Among several data protection methods proposed in the literature, those based on linear ... -
Kd-trees and the real disclosure risks of large statistical databases
(Elsevier, 2011)
Article
Accés restringit per política de l'editorialIn data privacy, record linkage can be used as an estimator of the disclosure risk of protected data. To model the worst case scenario one normally attempts to link records from the original data to the protected data. ... -
Modeling projections in microaggregation
(2008)
Text en actes de congrés
Accés obertMicroaggregation is a method used by statistical agencies to limit the disclosure of sensitive microdata. It has been proven that microaggregation is an NP-hard problem when more than one variable is microaggregated at the ... -
More hybrid and secure protection of statistical data sets
(IEEE Computer Society Publications, 2012-09)
Article
Accés restringit per política de l'editorialDifferent methods and paradigms to protect data sets containing sensitive statistical information have been proposed and studied. The idea is to publish a perturbed version of the data set that does not leak confidential ... -
On method-specific record linkage for risk assessment
(2007)
Text en actes de congrés
Accés obertNowadays, the need for privacy motivates the use of methods that permit us to protect a microdata file both minimizing the disclosure risk and preserving the statistical utility. Nevertheless, research is usually focused ... -
On the disclosure risk of multivariate microaggregation
(Elsevier Science Ltd., 2008-07-22)
Article
Accés restringit per política de l'editorialThe aim of data protection methods is to protect a microdata file both minimizing the disclosure risk and preserving the data utility. Microaggregation is one of the most popular such methods among statistical agencies. ... -
On the use of aggregation operators for location privacy
(2009)
Text en actes de congrés
Accés restringit per política de l'editorialNowadays, the management of sequential and temporal data is an increasing need in many data mining processes. Therefore, the development of new privacy preserving data mining techniques for sequential data is a crucial ... -
On the use of semantic blocking techniques for data cleansing and integration
(IEEE Computer Society, 2007)
Text en actes de congrés
Accés obertRecord Linkage (RL) is an important component of data cleansing and integration. For years, many efforts have focused on improving the performance of the RL process, either by reducing the number of record comparisons ... -
On the use of social trajectory-based clustering methods for public transport optimization
(2014)
Article
Accés obertPublic transport optimisation is becoming everyday a more di cult and challenging task, because of the increasing number of transportation options as well as the exponential increase of users. Many research contributions ... -
Optimal symbol alignment distance: a new distance for sequences of symbols
(IEEE Press. Institute of Electrical and Electronics Engineers, 2010-10-14)
Article
Accés obertComparison functions for sequences (of symbols) are important components of many applications, for example clustering, data cleansing and integration. For years, many efforts have been made to improve the performance of ... -
Parameter determination of ONN (Ordered Neural Networks)
(2007)
Report de recerca
Accés obertThe need for data privacy motivates the development of new methods that allow to protect data minimizing the disclosure risk without losing information. In this paper, we propose a new protection method for numerical data ...
