Here is a list of the Twitter accounts most followed by the members of the SIGGRAPH2018 community (computed by identyfying the 1890 accounts tweeting using #SIGGRAPH2018 with at least 5 tweets, between 2018-08-12 and 2018-08-19).
You can drag an zoom this followers chart
By number of followers in SIGGRAPH2018
Created by John Alexis Guerra Gómez Follow @duto_guerra
If you want me to compute this for your conference, send me a DM @duto_guerra
Here is the data in case you want to analyze it yourself
The SIGGRAPH2018 followers network