TY - CONF T1 - Privacy settings from contextual attributes: A case study using Google Buzz Y1 - 2011 A1 - Mashima, D. A1 - Elaine Shi A1 - Chow, R. A1 - Sarkar, P. A1 - Li,C. A1 - Song,D. KW - contextual attributes KW - data privacy KW - Google Buzz KW - privacy settings KW - social networking (online) KW - social networks KW - Statistics AB - Social networks provide users with privacy settings to control what information is shared with connections and other users. In this paper, we analyze factors influencing changes in privacy-related settings in the Google Buzz social network. Specifically, we show statistics on contextual data related to privacy settings that are derived from crawled datasets and analyze the characteristics of users who changed their privacy settings. We also investigate potential neighboring effects among such users. ER -