Sebastian Zimmeck


2017

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Identifying the Provision of Choices in Privacy Policy Text
Kanthashree Mysore Sathyendra | Shomir Wilson | Florian Schaub | Sebastian Zimmeck | Norman Sadeh
Proceedings of the 2017 Conference on Empirical Methods in Natural Language Processing

Websites’ and mobile apps’ privacy policies, written in natural language, tend to be long and difficult to understand. Information privacy revolves around the fundamental principle of Notice and choice, namely the idea that users should be able to make informed decisions about what information about them can be collected and how it can be used. Internet users want control over their privacy, but their choices are often hidden in long and convoluted privacy policy texts. Moreover, little (if any) prior work has been done to detect the provision of choices in text. We address this challenge of enabling user choice by automatically identifying and extracting pertinent choice language in privacy policies. In particular, we present a two-stage architecture of classification models to identify opt-out choices in privacy policy text, labelling common varieties of choices with a mean F1 score of 0.735. Our techniques enable the creation of systems to help Internet users to learn about their choices, thereby effectuating notice and choice and improving Internet privacy.

2016

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The Creation and Analysis of a Website Privacy Policy Corpus
Shomir Wilson | Florian Schaub | Aswarth Abhilash Dara | Frederick Liu | Sushain Cherivirala | Pedro Giovanni Leon | Mads Schaarup Andersen | Sebastian Zimmeck | Kanthashree Mysore Sathyendra | N. Cameron Russell | Thomas B. Norton | Eduard Hovy | Joel Reidenberg | Norman Sadeh
Proceedings of the 54th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)