chapter  1
Social Media
By2. Big Data and Social Data 16
Pages 15

Social media are indispensable elements of social big data applications. In this chapter, we will fi rst classify social media into several categories and explain the features of each category in order to better understand what social media are. Then we will select important media categories from a viewpoint of analysis required for social big data applications, address representative social media included in each category, and describe the characteristics of the social media, focusing on the statistics, structures, and interactions of social media as well as the relationships with other similar social media.