Autor segons l'article: Rebollo-Monedero, David; Forne, Jordi; Domingo-Ferrer, Josep
Departament: Enginyeria Informàtica i Matemàtiques
Autor/s de la URV: Domingo Ferrer, Josep
Paraules clau: 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
Resum: 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.
Àrees temàtiques: 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
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: josep.domingo@urv.cat
Identificador de l'autor: 0000-0001-7213-4962
Data d'alta del registre: 2024-10-12
Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
Enllaç font original: https://ieeexplore.ieee.org/document/6138865
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Ieee Transactions On Dependable And Secure Computing. 9 (5): 641-654
Referència 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 de l'article: 10.1109/TDSC.2012.16
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2012
Tipus de publicació: Journal Publications
Repositori URV