2 research outputs found
Option contracts for a privacy-aware market
Suppliers (including companies and individual prosumers) may wish to protect
their private information when selling items they have in stock. A market is
envisaged where private information can be protected through the use of
differential privacy and option contracts, while privacy-aware suppliers
deliver their stock at a reduced price. In such a marketplace a broker acts as
intermediary between privacy-aware suppliers and end customers, providing the
extra items possibly needed to fully meet the customers' demand, while end
customers book the items they need through an option contract. All stakeholders
may benefit from such a marketplace. A formula is provided for the option
price, and a budget equation is set for the mechanism to be profitable for the
broker/producer
Differential Privacy: An Estimation Theory-Based Method for Choosing Epsilon
Differential privacy is achieved by the introduction of Laplacian noise in
the response to a query, establishing a precise trade-off between the level of
differential privacy and the accuracy of the database response (via the amount
of noise introduced). However, the amount of noise to add is typically defined
through the scale parameter of the Laplace distribution, whose use may not be
so intuitive. In this paper we propose to use two parameters instead, related
to the notion of interval estimation, which provide a more intuitive picture of
how precisely the true output of a counting query may be gauged from the
noise-polluted one (hence, how much the individual's privacy is protected)