This repository contains documentation and scripts for the Reddit Politosphere, a pseudonymized, large-scale text and network resource of online political discourse based on the Pushshift Reddit Dataset.

The Reddit Politosphere covers 605 political subreddits between 2008 to 2019. For each year, it contains:

• all comments posted in the political subreddits together with metadata such as creation time
• networks with the political subreddits as nodes and edges computed on the basis of user overlap

We also release metadata for subreddits and users.

We provide scripts for easy data access:

• load_comments.py, load_comments.sh: load comments for specific years and subreddits
• load_networks.py: load networks for specific years

The comment files comments_YYYY-MM.bz2 contain all comments posted in the political subreddits between 2008 and 2019. The data fields are identical to the Pushshift Reddit Dataset. The author names are converted to random five-character pseudonyms. We add the following two data fields:

• body_cleaned: a tokenized, lower-cased, and cleaned version of the comment body
• language: the language of the comment as detected by CLD2

The network files networks_YYYY.csv contain the weighted and unweighted networks between 2008 and 2019. The weighted networks have edge weights corresponding to the number of users that posted at least 10 comments in both subreddits, excluding bots and automoderators. The unweighted networks are created by applying statistical network backboning, specifically the noise-corrected filter, to the weighted networks. Intuitively, a large weight between two large subreddits is less indicative of latent associations between the subreddits than a large weight between two small subreddits. The noise-corrected filter takes such effects into account when converting the weighted into an unweighted network. The files have the following data fields:

• node_1, node_2: nodes incident to the undirected edge
• weighted: edge weight in the weighted network
• unweighted: whether or not the edge exists in the unweighted network

The subreddit metadata file subreddits_metadata.json lists selected properties of the political subreddits. Specifically, it has the following data fields:

• subreddit: name of subreddit
• banned: whether or not subreddit has been banned by 2022
• gun: subreddit with focus on gun control
• party: explicit affiliation with democratic dem or republican rep party`
• politician: subreddit devoted to a politician
• region: Canada ca, Europe eu, Middle East me, UK uk, US states us or other regions world

The subreddit metadata file users_metadata.json lists selected properties of the users (who otherwise are fully pseudonymized). Specifically, it has the following data fields:

• author: pseudonymized username
• automoderator: whether or not user is automoderator (for filtering)
• bot: whether or not user is bot (for filtering)
• gender: username containing male m or female f given name

It further provides information about the presence of frequent classes of lexical elements in the usernames:

• angry: negative attitude (angry, rogue, troll, wtf)
• anti: overt negation (anti, downvote, fuck, stop)
• astro: astro theme (astro, cosm, rocket, space)
• dangerous: dangerous animal (beast, gorilla, shark, tiger, wolf)
• doom: doom theme (dead, death, doom, evil, zombie)
• military: military title (c(a)pt, colonel, commander, major, sgt)
• nobility: title of nobility (duke, emperor, king, lord, sir)
• trump: reference to Donald Trump (trump)

Please cite the following paper when using data from the Reddit Politosphere:

@inproceedings{hofmann2022politosphere,
    title = {The {R}eddit {P}olitosphere: A Large-Scale Text and Network Resource of Online Political Discourse},
    author = {Hofmann, Valentin and Sch{\"u}tze, Hinrich and Pierrehumbert, Janet},
    booktitle = {Proceedings of the International AAAI Conference on Web and Social Media 16},
    year = {2022}
}