Automated Experiments on Ad Privacy Settings

Publié le 6 juillet 2018

Créée le 6 juillet 2018

To partly address people’s concerns over web tracking, Google has created the Ad Settings webpage to provide information about and some choice over the profiles Google creates on users. We present AdFisher, an automated tool that explores how user behaviors, Google’s ads, and Ad Settings interact. AdFisher can run browser-based experiments and analyze data using machine learning and significance tests. Our tool uses a rigorous experimental design and statistical analysis to ensure the statistical soundness of our results. We use AdFisher to find that the Ad Settings was opaque about some features of a user’s profile, that it does provide some choice on ads, and that these choices can lead to seemingly discriminatory ads. In particular, we found that visiting webpages associated with substance abuse changed the ads shown but not the settings page. We also found that setting the gender to female resulted in getting fewer instances of an ad related to high paying jobs than setting it to male. We cannot determine who caused these findings due to our limited visibility into the ad ecosystem, which includes Google, advertisers, websites, and users. Nevertheless, these results can form the starting point for deeper investigations by either the companies themselves or by regulatory bodies.

AUTEURS

Amit Datta

Carnegie Mellon University, Pittsburgh, USA

Michael Carl Tschantz

International Computer Science Institute

Anupam Datta

Carnegie Mellon University

Posté par

Nozha Boujemaa

Research director

Ajouter une ressource

Participer vous aussi au développement de la transparence des algorithmes et des données en ajoutant des ressources

Modes de production: analyses d’algorithmes, black box versus white box, génération par l’algorithme, modèles d'apprentissage génératifs etc.

Discovering Unknown Unknowns of Predictive Models XRay: Enhancing the Web’s Transparency with Differential Correlation Mobilitics, saison 2 : Les smartphones et leurs apps sous le microscope de la CNIL et d'Inria

Commentaires

Laisser un commentaire

* Tous les champs suivis d'un astérisque sont obligatoires

Votre commentaire sera révisé par le site si nécessaire.