Title
Prudence: A System For Assessing Privacy Risk Vs Utility In Data Sharing Ecosystems
Abstract
Data describing human activities are an important source of knowledge useful for understanding individual and collective behavior and for developing a wide range of user services. Unfortunately, this kind of data is sensitive, because people's whereabouts may allow re-identification of individuals in a de-identified database. Therefore, Data Providers, before sharing those data, must apply any sort of anonymization to lower the privacy risks, but they must be aware and capable of controlling also the data quality, since these two factors are often a trade-off. In this paper we propose PRUDEnce (Privacy Risk versus Utility in Data sharing Ecosystems), a system enabling a privacy-aware ecosystem for sharing personal data. It is based on a methodology for assessing both the empirical (not theoretical) privacy risk associated to users represented in the data, and the data quality guaranteed only with users not at risk. Our proposal is able to support the Data Provider in the exploration of a repertoire of possible data transformations with the aim of selecting one specific transformation that yields an adequate trade-off between data quality and privacy risk. We study the practical effectiveness of our proposal over three data formats underlying many services, defined on real mobility data, i.e., presence data, trajectory data and road segment data.
Year
Venue
Field
2018
TRANSACTIONS ON DATA PRIVACY
Internet privacy,Prudence,Computer science,Data sharing
DocType
Volume
Issue
Journal
11
2
ISSN
Citations 
PageRank 
1888-5063
1
0.34
References 
Authors
0
6
Name
Order
Citations
PageRank
Francesca Pratesi1277.41
Anna Monreale258142.49
Roberto Trasarti371045.82
Fosca Giannotti42948253.39
Dino Pedreschi53083244.47
Tadashi Yanagihara610.34