Political hashtag hijacking in the U.S.

We study the change in polarization of hashtags on Twitter over time and show that certain jumps in polarity are caused by "hijackers" engaged in a particular type of hashtag war.

[1]  Jon Kleinberg,et al.  Differences in the mechanics of information diffusion across topics: idioms, political hashtags, and complex contagion on twitter , 2011, WWW.

[2]  Jacob Ratkiewicz,et al.  Political Polarization on Twitter , 2011, ICWSM.

[3]  Venkata Rama Kiran Garimella,et al.  Political Hashtag Trends , 2013, ECIR.

[4]  Victoria J. Hodge,et al.  A Survey of Outlier Detection Methodologies , 2004, Artificial Intelligence Review.

[5]  Carlos Castillo,et al.  The Effects of Query Bursts on Web Search , 2010, 2010 IEEE/WIC/ACM International Conference on Web Intelligence and Intelligent Agent Technology.