Yang et. al., SIGKDD 2012

Citation

Fan Yang, Yang Liu, Xiaohui Yu, and Min Yang. 2012. Automatic detection of rumor on Sina Weibo. In Proceedings of the ACM SIGKDD Workshop on Mining Data Semantics (MDS '12). ACM, New York, NY, USA.

Online version

Automatic detection of rumor on Sina Weibo

Summary

This Paper addresses the problem of Rumor Detection in Weibo (equivalent to Twitter in Mainland China). A classifier is trained using manually annotated data (identified false rumors) from a rumor-busting service available in Sina Weibo.

This study uses features applied in previous work on Twitter Rumor Detection and analyses the different effects of these features in Weibo. Furthermore, it proposes new features that improve the overall results.

Features

The set of features considered contain several features from previous work.

• Content-based
  • Contains Multimedia - Whether the message contains a picture, audio or video file
  • Sentiment - Sentiment of the message (based on the number of positive and negative emoticons used)
  • Contains URL - Whether the message contains an url
  • Time Span - The duration between the user registration and the message that was posted

• Account-based
  • Is Verified - Whether the user is verified by Weibo
  • Has Description - Whether the user has a description
  • Gender - Gender of the user
  • Avatar Type - Type of the avatar of the user (malicious users generally have the default avatar)
  • N followers - number of followers
  • N friends - number of friends
  • N messages - number of posts
  • Registration time - the time from the creation of the account and the present
  • User Type - Type of the account (Non-organization users have a higher change of being malicious)
  • Registration Place - Physical location where the account was created