Paper Title
What do people talk about the hackers group �anonymous� in 2015? A topic modeling approach

Abstract
Not only the formation of various hacker groups led the leak of personal information, but also caused the outbreak of war by paralyzing ICT technology of country or society through hacking. Although hacking personal or public information without permission is still an illegal act, some people refer to Anonymous as the �online avengers� Therefore, this research aims at examining the different viewpoints of a famous hacker group �Anonyous� in 2015. This research extracted based on Text Mining and analyzed 251,253 different opinions by the utilization of Topic Modeling on Social Network Service (SNS) called Twitter in order to examine different viewpoints of Anonymous. Index Terms�Anonymous, Hacker, Text Mining, Topic Modeling.