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To encourage data sharing and mitigate user privacy concerns, a number of anonymization and de-anonymization algorithms have been developed to help protect privacy of users. This article introduces our recent research on online users privacy in social media. In particular, we review an approach to identifying novel privacy issues via an adversarial attack specialized for social media data. Our work sheds light on the study of new privacy risks in social media data arising from the innate heterogeneity of user-generated data.<\/jats:p>","DOI":"10.1145\/3293874.3293878","type":"journal-article","created":{"date-parts":[[2019,2,19]],"date-time":"2019-02-19T20:54:15Z","timestamp":1550609655000},"page":"1-7","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":4,"title":["\"Identifying novel privacy issues of online users on social media platforms\" by Ghazaleh Beigi and Huan Liu with Martin Vesely as coordinator"],"prefix":"10.1145","volume":"2019","author":[{"given":"Ghazaleh","family":"Beigi","sequence":"first","affiliation":[{"name":"Arizona State University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Huan","family":"Liu","sequence":"additional","affiliation":[{"name":"Arizona State University"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2019,2,19]]},"reference":[{"key":"e_1_2_1_1_1","doi-asserted-by":"crossref","unstructured":"Abawajy J. H. Ninggal M. I. H. and Herawan T. 2016. Privacy preserving social network data publication. IEEE communications surveys & tutorials 18 3 1974--1997.  Abawajy J. H. Ninggal M. I. H. and Herawan T. 2016. Privacy preserving social network data publication. IEEE communications surveys & tutorials 18 3 1974--1997.","DOI":"10.1109\/COMST.2016.2533668"},{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1145\/1242572.1242598"},{"key":"e_1_2_1_3_1","unstructured":"Beigi G. 2018. Social media and user privacy. arXiv preprint arXiv:1806.09786.  Beigi G. 2018. Social media and user privacy. arXiv preprint arXiv:1806.09786."},{"key":"e_1_2_1_4_1","unstructured":"Beigi G. and Liu H. 2018a. Privacy in social media: Identification mitigation and applications. arXiv preprint arXiv:1808.02191.  Beigi G. and Liu H. 2018a. 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Springer."},{"key":"e_1_2_1_6_1","doi-asserted-by":"publisher","DOI":"10.1145\/3209542.3209552"},{"key":"e_1_2_1_7_1","doi-asserted-by":"publisher","DOI":"10.1145\/2700171.2791031"},{"key":"e_1_2_1_8_1","doi-asserted-by":"publisher","DOI":"10.1145\/2894760"},{"key":"e_1_2_1_9_1","doi-asserted-by":"publisher","DOI":"10.1145\/1376616.1376629"},{"key":"e_1_2_1_10_1","doi-asserted-by":"crossref","unstructured":"McPherson M. Smith-Lovin L. and Cook J. M. 2001. Birds of a feather: Homophily in social networks. Annual review of sociology 27 1 415--444.  McPherson M. Smith-Lovin L. and Cook J. M. 2001. Birds of a feather: Homophily in social networks. 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