臺灣大學: 資訊網路與多媒體研究所林守德何建彤Ho, Chien-TungChien-TungHo2013-03-222018-07-052013-03-222018-07-052010http://ntur.lib.ntu.edu.tw//handle/246246/251333微網誌是一種新型的社群網路應用服務,近來吸引越來越多的使用者加入。在微 網誌上,使用者透過張貼特殊的事件、對周遭人事物的感覺想法、甚至有趣的資 訊於個人頁面,進而達到與身旁親朋好友甚至世界上不認識的人交換資訊、相互 討論、分享經驗的目地。本論文的主旨在定義一套測量微網誌上資訊傳播的能力 的方法主要針對下列三個問題深入研究: 1. 如何定義以及有效的量化一項話題在微網誌上傳播的程度與速度? 2. 如何判斷一項話題傳播是經由微網誌內部傳播還是透過外部影響? 3. 如何設計一套系統能夠描述並視覺化在微網誌上的資訊傳播? 我們提出了一套有效的測量方法,將每位使用者對於話題的傳播能力排名,其測 量的方法主要考慮三個面向:(a) 能夠吸引參與話題的人數,(b) 將資訊傳播出去 的速度,(c) 地理位置上的傳播範圍。此外,除了根據上述三面向來建立傳播模型, 我們同時利用話題提供者數目和參與者數目的比例,判斷資訊的傳播是透過內部 散播還是受到外部媒體的影響。最終我們將設計的方法實際運用在微網誌Plurk 上 來進行驗證和分析,並實做一資訊傳播的視覺化系統,以呈現特定主題於微網誌 之傳播現象。Micro-blog is a kind of social network web service and has become more and more popular in daily life. In micro-blog, bloggers can exchange information and discuss ideas with each other, and share experience with friends or even strangers. This paper aims at identifying a measurement for information propagation in micro-blogs and answer the following questions: 1. How to quantify a person’s capability to distribute certain idea in a micro-blog? 2. How to measure the level of propagation of a concept in a micro-blog? 3. How to determine whether certain idea is propagated internally in a micro-blog? We propose methods to effectively measure the capability of the information propagation for each user in micro-blogs. The measurement focuses on three aspects: (a) the number of influenced people, (b) the speed of propagation, and (c) the geographic distance of propagation. Besides, we also propose a method to identify whether a topic is propagated inside the micro-blog or based on outer media (e.g. news). In the end, we construct a online system that allows us to perform some experiments to visualize the propagation paths, influence scores, and geographical information among people with respect to the user-given terms.1900234 bytesapplication/pdfen-US資訊傳播社群網路模型視覺化information propagationsocial networkmodelvisualization基於微網誌平台之資訊傳播模型與視覺化Modeling and Visualizing Information Propagation in Micro-Blogging Platformthesishttp://ntur.lib.ntu.edu.tw/bitstream/246246/251333/1/ntu-99-R97944013-1.pdf