Compositional Methods for Utility under Local Privacy Mechanisms

il y a 3 semaines

Palaiseau, France INRIA Temps plein

Contexte et atouts du poste

The Comete project team at the Inria Saclay Center specializes in security and privacy protection and has sixteen researchers (

Mission confiée

The purpose of this position is to work with the COMETE research team to develop methods and software for estimating statistics from data protected with local differential privacy (DP).

Classical data analysis methods like matrix inversion and iterative Bayesian update assume that all the users apply the same privacy mechanism and with the same privacy parameters. This is unfortunate because in principle the local model of privacy would allow users to use different mechanisms and different privacy settings, depending on their needs and preferences, on the kind of service they want to get in exchange for their data, etc. 

The goal of this project is to remove the same-mechanism restriction and investigate efficient methods to achieve good precision of the distribution estimation in the scenario in which the mechanisms and/or the level of noise are very different from each other. This objective involves investigating the different estimation methods in this case. 

Principales activités

Collaborate with the research team to develop efficient methods for statistical estimation from data protected by personalized local DP Develop programs based on the above methods Conduct experiments on real and synthetic data Write documentation and develop demos Write reports and papers 

Compétences

PhD in Computer Science on topics that require expertise in anonymization techniques.

Knowledge of data anonymization methodology;
Knowledge of methods for analyzing re-identification risk and associated inference risks, knowledge of measures of data usefulness for statistical analyses;
Practical knowledge of data analysis languages (R, Python, C++) and database management software (MySQL, etc.);
Ability to write scientific papers;
Ability to monitor methodologies;
Rigor, good organization, sense of priorities, autonomy;
Mathematical skills;
Teamwork skills ;

Very good level in written and oral English ;

Capability to work in a team.

Avantages

Subsidized meals Partial reimbursement of public transport costs Leave: 7 weeks of annual leave + 10 extra days off due to RTT (statutory reduction in working hours) + possibility of exceptional leave (sick children, moving home, etc.) Possibility of teleworking and flexible organization of working hours Professional equipment available (videoconferencing, loan of computer equipment, etc.) Social, cultural and sports events and activities Access to vocational training Social security coverage

Rémunération

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