Author: Liu, Xuanlin
Title: Spatial-temporal sentiment analysis : a Sina Weibo based model and implementation
Advisors: Chung, Fu-lai Korris (COMP)
Degree: M.Sc.
Year: 2017
Subject: Online social networks -- Social aspects.
Public opinion -- Data processing.
Computational linguistics.
Hong Kong Polytechnic University -- Dissertations
Department: Department of Computing
Pages: 1 online resource (viii, 51, 5 pages) : illustrations
viii, 51, 5 pages : illustrations
Language: English
Abstract: Microblogging is getting more and more popular in recent years. As a kind of service that provides opinion discussing, information sharing, attitude expressing, it adapts modern people's need for convenience and real-time. As the result that the number of microblogging users increases rapidly year by year, researchers of sentiment analysis, who study crowd emotion and attitude, start to focus more on mining from microblogging sites. Weibo, the most popular microblogging site in China, has 212 million monthly active users up to September 30, 2015, increased 48% than that in 2014. Such a huge number of users attract sentiment analysis researchers. In this dissertation, we propose a system for geological sentiment analysis on Weibo. It classifies geo-tagged posts into positive, neutral and negative. Then the results are analyzed in multi perspectives to find meaningful relations. For example, the emotion value with the area, the variation of emotion values from time or date changing, and the similarity and differences between Hong Kong and Shenzhen. The f1-score and accuracy of the final trained classifier reaches 89.04% and 89.13% respectively in cross validation stage. Using the classifier, it is found that in both cities, most of the districts that have highest emotion scores are tourism areas, and generally, emotion scores of weekends are higher than that of weekdays. Our approach and results show a way of studying from social network data, which may help computer scientists, societies, demographer, and etc.
Rights: All rights reserved
Access: restricted access

Files in This Item:
File Description SizeFormat 
b29500151.pdfFor All Users (off-campus access for PolyU Staff & Students only)823.22 kBAdobe PDFView/Open

Copyright Undertaking

As a bona fide Library user, I declare that:

  1. I will abide by the rules and legal ordinances governing copyright regarding the use of the Database.
  2. I will use the Database for the purpose of my research or private study only and not for circulation or further reproduction or any other purpose.
  3. I agree to indemnify and hold the University harmless from and against any loss, damage, cost, liability or expenses arising from copyright infringement or unauthorized usage.

By downloading any item(s) listed above, you acknowledge that you have read and understood the copyright undertaking as stated above, and agree to be bound by all of its terms.

Show full item record

Please use this identifier to cite or link to this item: