Autor según el artículo: Rebollo-Monedero, David; Forne, Jordi; Domingo-Ferrer, Josep
Departamento: Enginyeria Informàtica i Matemàtiques
Autor/es de la URV: Domingo Ferrer, Josep
Palabras clave: User collaborations Shannon entropy Search engines Query processing Profile obfuscation Probability distributions Private information retrieval Privacy via user collaboration Privacy protection Optimization variables Mathematical formulation Information theory Information provider Entropy
Resumen: We address the problem of query profile obfuscation by means of partial query exchanges between two users, in order for their profiles of interest to appear distorted to the information provider (database, search engine, etc.). We illustrate a methodology to reach mutual privacy gain, that is, a situation where both users increase their own privacy protection through collaboration in query exchange. To this end, our approach starts with a mathematical formulation, involving the modeling of the users' apparent profiles as probability distributions over categories of interest, and the measure of their privacy as the corresponding Shannon entropy. The question of which query categories to exchange translates into finding optimization variables representing exchange policies, for various optimization objectives based on those entropies, possibly under exchange traffic constraints. © 2012 IEEE.
Áreas temáticas: General computer science Engenharias iv Engenharias iii Electrical and electronic engineering Computer science, software engineering Computer science, information systems Computer science, hardware & architecture Computer science (miscellaneous) Computer science (all) Ciência da computação
Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
Direcció de correo del autor: josep.domingo@urv.cat
Identificador del autor: 0000-0001-7213-4962
Fecha de alta del registro: 2024-10-12
Versión del articulo depositado: info:eu-repo/semantics/acceptedVersion
Enlace a la fuente original: https://ieeexplore.ieee.org/document/6138865
URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
Referencia al articulo segun fuente origial: Ieee Transactions On Dependable And Secure Computing. 9 (5): 641-654
Referencia de l'ítem segons les normes APA: Rebollo-Monedero, David; Forne, Jordi; Domingo-Ferrer, Josep (2012). Query profile obfuscation by means of optimal query exchange between users. Ieee Transactions On Dependable And Secure Computing, 9(5), 641-654. DOI: 10.1109/TDSC.2012.16
DOI del artículo: 10.1109/TDSC.2012.16
Entidad: Universitat Rovira i Virgili
Año de publicación de la revista: 2012
Tipo de publicación: Journal Publications