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Révélations d'Edward Snowden

Publications associées (39)

MediaEval 2012 Visual Privacy Task: Applying Transform-domain Scrambling to Automatically Detected Faces

In this paper, we describe our approach and discuss evaluation results for the MediaEval 2012 Visual Privacy task. The goal of the task is to obscure faces of people visible in provided surveillance clips to preserve their personal privacy. We also additio ...

2012

Distributed Authentication in Anonymous Mobile Communities

Hamza Harkous

With the recent boom in smartphones technology, online social networks are going mobile. This trend urged phone manufacturers and social networking companies to seek novel business strategies to monetize from these new "gateways" and to give the users ...

2012

3-D Relative Positioning Sensor for Indoor Flying Robots

Dario Floreano, Jean-Christophe Zufferey, Timothy Stirling, James Roberts

Swarms of indoor flying robots are promising for many applications, including searching tasks in collapsing buildings, or mobile surveillance and monitoring tasks in complex man-made structures. For tasks that employ several flying robots, spatial-coordina ...

Springer Verlag2012

Quantifying Location Privacy

Jean-Yves Le Boudec, Jean-Pierre Hubaux, Reza Shokri, Georgios Theodorakopoulos

It is a well-known fact that the progress of personal communication devices leads to serious concerns about privacy in general, and location privacy in particular. As a response to these issues, a number of Location-Privacy Protection Mechanisms (LPPMs) ha ...

Ieee Computer Soc Press, Customer Service Center, Po Box 3014, 10662 Los Vaqueros Circle, Los Alamitos, Ca 90720-1264 Usa2011

Evaluating the Privacy Risk of Location-Based Services

Jean-Pierre Hubaux, Julien Freudiger, Reza Shokri

In modern mobile networks, users increasingly share their location with third-parties in return for location-based services. In this way, users obtain services customized to their location. Yet, such communications leak location information about users. Ev ...

Springer-Verlag Berlin2011

Introducing Crossmodal Biometrics:Person Identification from Distinct Audio & Visual Streams

Sébastien Marcel, Anindya Roy

Person identification using audio or visual biometrics is a well-studied problem in pattern recognition. In this scenario, both training and testing are done on the same modalities. However, there can be situations where this condition is not valid, i.e. t ...

2010

Introducing Crossmodal Biometrics: Person Identification from Distinct Audio & Visual Streams

Sébastien Marcel, Anindya Roy

Idiap2010

Tracking Games in Mobile Networks

Jean-Pierre Hubaux, Mathias Jacques Jean-Marc Humbert, Julien Freudiger

Users of mobile networks can change their identifiers in regions called mix zones in order to defeat the attempt of third parties to track their location. Mix zones must be deployed carefully in the network to reduce the cost they induce on mobile users an ...

Springer-Verlag New York Inc2010

Discontinuous Galerkin method for the spherically reduced Baumgarte-Shapiro-Shibata-Nakamura system with second-order operators

Jan Sickmann Hesthaven

We present a high-order accurate discontinuous Galerkin method for evolving the spherically reduced Baumgarte-Shapiro-Shibata-Nakamura (BSSN) system expressed in terms of second-order spatial operators. Our multidomain method achieves global spectral accur ...

AMER PHYSICAL SOC2010

Scanning flow CCN analysisa method for fast measurements of CCN spectra

Athanasios Nenes

The Continuous-Flow Streamwise Thermal-Gradient Cloud Condensation Nuclei Counter is a commercially available instrument that is widely used for laboratory and field measurements of cloud condensation nuclei (CCN). Typically, the instrument is operated at ...

2009

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