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Title:	以深度學習探勘社群網路異常使用者的協作行為 Discovering Coordination Behaviors of Malicious Accounts over Social Media Using Deep Learning
Authors:	陳郁雯 Chen, Yu-Wen
Contributors:	沈錳坤 Shan, Man-Kwan 陳郁雯 Chen, Yu-Wen
Keywords:	異常帳號協作行為深度學習 Malicious Accounts Coordination Deep Learning
Date:	2020
Issue Date:	2020-09-02 13:15:32 (UTC+8)
Abstract:	近年來社群媒體的興起，訊息經過社群網路快速傳播，使用者各種意見形成公眾輿論。有心人士企圖利用大量的假帳號，操作輿論影響多數人的想法，來達到特定的目的。輿論帶風向者往往透過寫手發文後，由真人或機器人程式，操作大量假帳號，在發文後的短時間內大量的留言，以達到帶風向、製造輿論的目的。本論文根據使用者在社群媒體上留言的共謀行為，研究由已知的異常帳號來探索出未知的同夥異常帳號。我們運用深度學習技術以計算共謀行為的相似度。本論文以國內最大的BBS站PTT為例，實驗PTT 2018年8月至2020年2月八卦版及政黑板的資料。實驗結果顯示本論文的方法可有效地由異常帳號探索出具有協作行為的未知異常帳號。 As social media service is more and more popular, information is shared and spread quickly over the social network. Some try to manipulate the public opinion by means of malicious accounts. It has been reported that one way of public opinion manipulation can be achieved by delivering the stories, and operating large amounts of malicious accounts to promote the stories few minutes after the delivery of story in a short period of time. According to the observation of collusive behaviors of comment operations between malicious accounts over social media, this thesis investigates the exploration by examples approach to explore unknown accomplices by the known malicious accounts. Deep learning technique is leveraged to discover the similarity of collusive behaviors. The experiments were performed based on data collected from PTT Gossiping and HatePolitics board from August 2018 to February 2020. The experimental results show that the proposed mechanism can effectively discover collusive behaviors of malicious accounts.
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Description:	碩士國立政治大學資訊科學系碩士在職專班 106971016
Source URI:	http://thesis.lib.nccu.edu.tw/record/#G0106971016
Data Type:	thesis
DOI:	10.6814/NCCU202001668
Appears in Collections:	[Executive Master Program of Computer Science of NCCU] Theses

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