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系統識別號 U0026-3108201810135800
論文名稱(中文) 社群媒體中災難相關訊息之偵測與統整技術
論文名稱(英文) Identifying and Aggregating Disaster-related Messages from Social Media Streams
校院名稱 成功大學
系所名稱(中) 工程科學系
系所名稱(英) Department of Engineering Science
學年度 106
學期 2
出版年 107
研究生(中文) 林純平
研究生(英文) Chun-Ping Lin
學號 n96051449
學位類別 碩士
語文別 英文
論文頁數 42頁
口試委員 指導教授-鄧維光
口試委員-侯廷偉
口試委員-王明習
口試委員-黃仁暐
中文關鍵字 災難管理  訊息偵測  訊息統整  社群媒體 
英文關鍵字 disaster management  message identification  message aggregation  social media 
學科別分類
中文摘要 自然或人為災難皆可能導致嚴重的人員傷亡和經濟損失,因此對相關機構而言最具挑戰性的任務之一,就是迅速且準確地掌握災難事件的最新狀況。而隨著近年來社群媒體 (如Twitter、Facebook、PTT等) 的普及,使得災難現場目擊的民眾可以藉由社群媒體發送即時訊息,以迅速聯繫親朋好友並分享相關資訊與照片、影音等,此一資訊傳播方式往往比傳統媒體中的新聞報導更加快速,而成為新型態的資訊管道。在本研究中,我們提出一套方法流程,去改善我們原有的監測災難事件輔助系統在對於社群媒體中識別與災難相關訊息的效果,並從原先視單一訊息為一獨立單位,轉為以事件為一個單位,將描述相同事件的相關資訊進行統整,幫助相關災難應變機構更全面地了解災難現場情況。
英文摘要 Natural and man-made disasters both cause serious casualties and economic damages. Therefore, one of the most challenging tasks for agencies is to rapidly and accurately identify the latest status of a disaster event. With the recent widespread of social media (e.g., Twitter, Facebook, and PTT,) people may easily disseminate and share what they see and hear when they witness a severe accident. These massive and instant messages containing texts, photos and video may form a new type of channel that usually spreads information faster than traditional media do. In this work, we thus propose a scheme that improves the effectiveness of identifying disaster-related messages from social media streams. Also, we further attempt to aggregate messages describing an identical event. This is crucial in helping disaster management agencies to understand the situation in a more comprehensive way.
論文目次 Chapter 1 Introduction 1
1.1 Motivation and Overview 1
1.2 Contributions of This Work 2
Chapter 2 Preliminaries 3
2.1 Social Media Analysis 3
2.1.1 Basics of Social Media 3
2.1.2 Usage of Social Media 4
2.2 Disaster Event Detection and Tracking Analysis 5
2.2.1 Disaster Management 5
2.2.2 Detecting and Tracking Disaster Events 7
2.2.3 Practical Usage of Disaster Event Detection Techniques 9
Chapter 3 Proposed Scheme for Online Monitoring of Disaster Events 12
3.1 Data Preprocessing 12
3.1.1 Data Source 12
3.1.2 Data Preprocessing 13
3.2 Proposed Scheme of Disaster Events Detection and Tracking 15
3.2.1 Identifying Suspicious Disaster-related Messages 16
3.2.2 Aggregating Actual Disaster-related Messages 18
3.2.3 Disaster Event Tracking and Visualization 20
3.3 Enhancements of the Proposed Scheme 21
Chapter 4 Empirical Studies 23
4.1 Prototype Implementation 23
4.2 Proposed Improved Disaster Event Detection and Tracking System 24
4.3 Case Study 28
4.4 Experimental Process 31
4.4.1 Datasets 31
4.4.2 Enhancement of Identifying Disaster-related Messages 33
4.4.3 Aggregating the Disaster-related Messages 35
Chapter 5 Conclusions and Future Works 37
Bibliography 38
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