Science, AskScience,and BadScience:on the coexistence ofhighly related communities

Jack Hessel, Chenhao Tan, Lillian LeeCornell University

[Zachary 1977]

/r/wallpapers (370K Subscribers)

/r/wallpaper (157K Subscribers)

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5692Subreddits

887.5MComments in Context

88MPosts

Most work done by: Jason Baumgartner of pushshift.io and (Tan and Lee 2015)

All Posts and Comments from

2006-2014! E-mail me for full text :-)

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1. Affixes

/r/TrueAtheism = True + /r/Atheism

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/r/pokemon (494K Subscribers)

+True(6K Subscribers)

+RNG(1.5K Subscribers)

+Trades(37K Subscribers)

1. Affixes

/r/TrueAtheism = True + /r/Atheism

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1. Affixes

2. Topic

/r/TrueAtheism = True + /r/Atheism

or

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6.6M Text Posts 3.2K Communities[Blei et al. 2003]

Topic Distributions available from [Hessel et al. 2015]

Vegetarian

vegan (.975)Paleo (.944)

glutenfree (.917)nutrition (.884)

juicing (.881)VegRecipes (.832)

EatCheapAndHealthy (.831)fitmeals (.827)

food (.823)keto (.792)

1. Affixes

2. Topic

/r/TrueAtheism = True + /r/Atheism

or

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1. Affixes

2. Topic

/r/TrueAtheism = True + /r/Atheism

or

“Highly Related”

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1. Affixes

2. Topic

/r/TrueAtheism = True + /r/Atheism

or3. Founders are from original community

“Highly Related”

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1. Affixes

2. Topic

/r/TrueAtheism = True + /r/Atheism

or3. Founders are from original community

“Highly Related”

“Spinoff”

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Atheism

TrueAtheism

Atheism

TrueAtheism

Atheism

TrueAtheism

t

Atheism

TrueAtheism

t

Atheism

TrueAtheism

t

Post-interactionsPre-interactions

Atheism

TrueAtheism

t-w t t+w

Post-interactionsPre-interactions

Ask+GayBros

True+tf2

GameDeals+Meta

cringe+pics

airsoft+market

GTA+online

space+porn

casual+pokemontrades

canada+guns

music+videos

More Active

in Original

Less Active

in Original

More Active

in Original

“Action”

“Better”

“Parody”

“Derivative”

“Generation”

“Subject”

“Learning/Improvement”

“Medium”

“Genre”

“Place”

“nsfw”

Questions?

Contact:jhessel@cs.cornell.edu@jmhessel

Thanks to David Mimno + Mor Naaman for their helpful comments.

Credits

Special thanks to all the people who made and released these awesome resources for free:◎ Presentation template by SlidesCarnival◎ Photographs by Unsplash & Death to the Stock Photo

(license)