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A large number of human behaviors had been recorded including cooccurrence which refers to the phenomenon that two people have been to the same places at the same time. These data enable attackers to infer people\u2019s social relationship based on their cooccurrences and many attack models were proposed. However, current attack models still cannot effectively address the following two challenges:<jats:italic> How to distinguish cooccurrences between acquaintances and strangers? What kind of cooccurrence contributes to strong social strength?<\/jats:italic> In this paper, we present a novel social relationship attack model\u2014the Mobility Intention-based Relationship Inference (MIRI) model\u2014which can solve the above two issues. Firstly, we extract mobility intentions and adopt them to characterize cooccurrences. A classification model is trained for attacking social relationship. The experimental results on two real-world datasets demonstrate that the proposed MIRI model can properly differentiate cooccurrences by simultaneously considering spatial and temporal features. The comparison results also indicate that MIRI model significantly outperforms state-of-the-art social relationship attack models.<\/jats:p>","DOI":"10.1155\/2017\/3787089","type":"journal-article","created":{"date-parts":[[2017,10,31]],"date-time":"2017-10-31T19:31:26Z","timestamp":1509478286000},"page":"1-10","source":"Crossref","is-referenced-by-count":0,"title":["Why You Go Reveals Who You Know: Disclosing Social Relationship by Cooccurrence"],"prefix":"10.1155","volume":"2017","author":[{"ORCID":"https:\/\/2.zoppoz.workers.dev:443\/https\/orcid.org\/0000-0002-3253-5232","authenticated-orcid":true,"given":"Feng","family":"Yi","sequence":"first","affiliation":[{"name":"Beijing Key Laboratory of IOT Information Security, Institute of Information Engineering, CAS, Beijing 100093, China"},{"name":"School of Cyber Security, University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing 100049, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/2.zoppoz.workers.dev:443\/https\/orcid.org\/0000-0003-1353-7838","authenticated-orcid":true,"given":"Hong","family":"Li","sequence":"additional","affiliation":[{"name":"Beijing Key Laboratory of IOT Information Security, Institute of Information Engineering, CAS, Beijing 100093, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hongtao","family":"Wang","sequence":"additional","affiliation":[{"name":"Beijing Key Laboratory of IOT Information Security, Institute of Information Engineering, CAS, Beijing 100093, China"},{"name":"School of Cyber Security, University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing 100049, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/2.zoppoz.workers.dev:443\/https\/orcid.org\/0000-0003-2745-7521","authenticated-orcid":true,"given":"Limin","family":"Sun","sequence":"additional","affiliation":[{"name":"Beijing Key Laboratory of IOT Information Security, Institute of Information Engineering, CAS, Beijing 100093, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","reference":[{"key":"1","doi-asserted-by":"publisher","DOI":"10.1016\/j.future.2013.01.010"},{"key":"7","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-540-79228-4_1"},{"key":"16","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.0900282106"},{"key":"18","doi-asserted-by":"publisher","DOI":"10.1038\/nature06958"},{"key":"13","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.1006155107"},{"key":"25","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-319-08010-9_56"},{"key":"10","doi-asserted-by":"publisher","DOI":"10.1109\/JSYST.2015.2445919"},{"key":"9","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-319-60033-8_75"},{"key":"21","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1099-128X(199805\/06)12:3<155::AID-CEM502>3.0.CO;2-5"},{"key":"28","doi-asserted-by":"publisher","DOI":"10.1162\/1532443041827916"}],"container-title":["Wireless Communications and Mobile Computing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/2.zoppoz.workers.dev:443\/http\/downloads.hindawi.com\/journals\/wcmc\/2017\/3787089.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/2.zoppoz.workers.dev:443\/http\/downloads.hindawi.com\/journals\/wcmc\/2017\/3787089.xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/2.zoppoz.workers.dev:443\/http\/downloads.hindawi.com\/journals\/wcmc\/2017\/3787089.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2017,10,31]],"date-time":"2017-10-31T19:31:29Z","timestamp":1509478289000},"score":1,"resource":{"primary":{"URL":"https:\/\/2.zoppoz.workers.dev:443\/https\/www.hindawi.com\/journals\/wcmc\/2017\/3787089\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017]]},"references-count":10,"alternative-id":["3787089","3787089"],"URL":"https:\/\/2.zoppoz.workers.dev:443\/https\/doi.org\/10.1155\/2017\/3787089","relation":{},"ISSN":["1530-8669","1530-8677"],"issn-type":[{"type":"print","value":"1530-8669"},{"type":"electronic","value":"1530-8677"}],"subject":[],"published":{"date-parts":[[2017]]}}}