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While this degradation does happen, it happens slower than expected, illustrating that hand-crafted, content-based features, such as style of writing, are fairly robust to changes in the news cycle. We show that this small degradation can be mitigated using online learning. Last, we examine the impact of adversarial content manipulation by malicious news producers. Specifically, we test three types of attack based on changes in the input space and data availability. We show that static models are susceptible to content manipulation attacks, but online models can recover from such attacks.<\/jats:p>","DOI":"10.1145\/3363818","type":"journal-article","created":{"date-parts":[[2019,12,16]],"date-time":"2019-12-16T13:12:30Z","timestamp":1576501950000},"page":"1-23","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":35,"title":["Robust Fake News Detection Over Time and Attack"],"prefix":"10.1145","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4674-4553","authenticated-orcid":false,"given":"Benjamin D.","family":"Horne","sequence":"first","affiliation":[{"name":"Rensselaer Polytechnic Institute, Street Troy NY, USA"}]},{"given":"Jeppe","family":"N\u00f8rregaard","sequence":"additional","affiliation":[{"name":"Technical University of Denmark, Lyngby, Denmark, USA"}]},{"given":"Sibel","family":"Adali","sequence":"additional","affiliation":[{"name":"Rensselaer Polytechnic Institute, Street Troy NY, USA"}]}],"member":"320","published-online":{"date-parts":[[2019,12,14]]},"reference":[{"key":"e_1_2_1_1_1","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-319-69155-8_9"},{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1257\/jep.31.2.211"},{"key":"e_1_2_1_3_1","doi-asserted-by":"publisher","DOI":"10.1145\/3274289"},{"key":"e_1_2_1_4_1","doi-asserted-by":"publisher","DOI":"10.18653\/v1\/D18-1389"},{"key":"e_1_2_1_5_1","volume-title":"Multi-task ordinal regression for jointly predicting the trustworthiness and the leading political ideology of news media. arXiv preprint arXiv:1904.00542","author":"Baly Ramy","year":"2019","unstructured":"Ramy Baly , Georgi Karadzhov , Abdelrhman Saleh , James Glass , and Preslav Nakov . 2019. 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