A Byte of my 2.2-lb Brain

Just sharing stuff…

Network Growth of “The Silent Majority”

A few weeks ago, I was added to the closed Facebook group, “The Silent Majority” (TSM), of Mar Roxas-Leni Robredo (RoRo) supporters (#PHVote) when it only had less than 10,000 members. (As of this writing, the TSM has organically grown to ~150,000 members.) I noticed how quickly the group swelled in just a matter of days. The membership expansion was so fast that my friend Chris also got curious about its network growth dynamics. We decided to “visualize” the mushrooming of the online society. With the help of our friend Ed David, who is also a member of the closed group, we were finally able to map the social network of RoRo supporters. The image below shows ~100,000 members (1 yellow dot represents 1 TSM member) and how each and every one is connected to each and every one; the two insets zoom in on two arbitrary clusters in the 100,000 strong network structure.

Screen Shot 2016-04-24 at 5.49.47 PM

The graph constructed is a directed one with source nodes “adding”/”recruiting” the target nodes to the TSM. Below, we further zoom in on one of the insets; each yellow dot is a TSM member.

inset-1.png

The network, of course, includes a time component—the time and date when a member is added. Below, we create a visualisation of how the network grew from a few members to 5,000 members. For this dynamic visualisation, we limit the size of the network  since the construction can be a bit tedious and computationally expensive.

final-vid-clip_black_chronological_1

Below, from a few members to 10,000 members.

final-vid-clip_black_chronological_2.GIF

And here’s a snapshot of the same 10,000 member TSM. In the figure below, we vary the size of a node depending on its “out degree” or the number of individuals a node has invited/added to TSM.

tsm_10000nodes.png

Finally, the entire network we have collected (incomplete) with ~100,000 nodes. [Full Image]

graph-draw-huge.png

In the figure below, we show the plot for the number of new TSM members an existing member has invited. The x-axis represents the members according to their ranks in terms of the number of people they have invited to join TSM (e.g. Rank 1 – the one with the most number of invited/added people), while the y-axis represents the number of new TSM members that particular person in the rank has invited. Although the number of members the TSM has in our dataset is about 100,000, we observed that only less than 8,000 of the members have actually invited at least one to join the Facebook group.

Picture1.png

Some Observations/Insights

  1. Communities connected to the Giant Component (main cluster) grow faster.
  2. The weak links provide faster growth points.
  3. Characteristic limit size of ~150(?) (see Dunbar’s number) individuals form a sub-community that can no longer grow.

Screen Shot 2016-04-24 at 5.49.47 PM.png

 

Disclaimer: This is a personal post/blog, the opinions expressed here represent my own and not those of my employer.

15 comments on “Network Growth of “The Silent Majority”

  1. Toots de la Paz
    April 25, 2016

    Hi! Wow! Great illlustration. Congrats! I’m just curious though… up till now, I still have no clue who added me to the group. Is there a way to find out?

    Like

  2. Toots de la Paz
    April 25, 2016

    Hi! Wow great illustration. Congrats! I have a question though. Up till now I have no clue who added me to the group. Is there a way to find out?

    Like

    • E
      April 25, 2016

      Hello, Toots, thanks. You can go to the Members tab of the page and look for your name in the list. You’ll see there who added you. I just saw, and her initials is MAV. Cheers!

      Like

  3. Laurence Valerio C. Palma Jr.
    April 25, 2016

    Go roro

    Like

  4. Pwede po ba akung mag member

    Like

    • E
      April 25, 2016

      I’m not sure if one can join without an invite; but you may try. Try searching for “The Silent Majority” #thesilentmajorityph fB group. Cheers!

      Like

  5. Lorie joy Lorenzo
    April 25, 2016

    Go RORO

    Like

  6. Adrian A. Banzon
    April 25, 2016

    I’d like to call on the other supporters of Mar-Leni to be counted so that at least we can show our force.

    Like

  7. Jo Mana
    April 25, 2016

    Pls count me in.

    Like

  8. allan
    April 25, 2016

    count me in too.!

    Like

  9. John Niel Benedicto
    April 25, 2016

    How can I be part of the group?..

    Like

    • E
      April 25, 2016

      Hi, John Niel. Of course! Are you able to search for “The Silent Majority” #thesilentmajorityph on Facebook? It is a closed group. You can try to join the group if you don’t have contacts who are already part of it. If you have friends who are part of the group, you may request them to invite/add you. Thank you.

      You may try this link: https://www.facebook.com/groups/thesilentmajorityph/

      Hope it works!

      Like

  10. John Niel Benedicto
    April 25, 2016

    Count me in..

    Like

  11. Romeo Aspe
    April 26, 2016

    Good luck, Erika. I hope your number swells exponentially in time for the May 9 elections. By the way, I am for DU30.

    Like

  12. Lilia t. Mendova
    April 26, 2016

    Pls count me in too.

    Like

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This entry was posted on April 24, 2016 by in Blog, Philippines, Uncategorized and tagged , , , , , , .
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