Social media data has become crucial to the advancement of scientific understanding. However, even though it ubiquitous, just collecting large-scale social involves a high degree engineering skill set and computational resources. In fact, research is often times gated by problems that must be overcome before analysis can proceed. This resulted recognition datasets as meaningful contributions in themselves.Reddit, so called “front page Internet,” particular been subject numerous studies....

"Media events" generate conditions of shared attention as many users simultaneously tune in with the dual screens broadcast and social media to view participate. We examine how collective patterns user behavior under are distinct from other "bursts" activity like breaking news events. Using 290 million tweets a panel 193,532 politically active Twitter users, we compare features their during eight major events 2012 U.S. presidential election use change these compared "typical" time whether...

This article proposes an empirical test of whether aggregate economic behavior maps from the real to virtual. Transaction data a large commercial virtual world — first such set provided outside researchers is used calculate metrics for production, consumption and money supply based on real-world definitions. Movements in these over time were examined consistency with common theories macroeconomic change. The results indicated that follows patterns. Moreover, natural experiment occurred, new...

Wikipedia’s coverage of breaking news and current events dominates editor contributions reader attention in any given month. Collaborators on articles rapidly synthesize content to produce timely information spite steep coordination demands. thus presents a case test theories about how open collaborations coordinate complex, time-sensitive, knowledge-intensive work the absence central authority, stable membership, clear roles, or reliable information. Using revision history from Wikipedia...

We examine the growth, survival, and context of 256 novel hashtags during 2012 U.S. presidential debates. Our analysis reveals trajectories hashtag use fall into two distinct classes: "winners" that emerge more quickly are sustained for longer periods time than other "also-rans" hashtags. propose a "conversational vibrancy" framework to capture dynamics based on their topicality, interactivity, diversity, prominence. Statistical analyses growth persistence reveal relationships between...

The legal status of Cannabis is changing, fueling an increasing diversity -derived products. Because contains dozens chemical compounds with potential psychoactive or medicinal effects, understanding this phytochemical crucial. industry heavily markets products to consumers based on widely used labeling systems purported predict the effects different “strains.” We analyzed cannabinoid and terpene content commercial samples across six US states, finding distinct phenotypes (chemotypes) which...

The prevalence of misinformation within social media and online communities can undermine public security distract attention from important issues. Fact-checking interventions, in which users cite fact-checking websites such as Snopes.com FactCheck.org, are a strategy employ to refute false claims made by their peers. While laboratory research suggests interventions not effective persuading people abandon ideas, little work considers how actually deployed real-world conversations. Using...

Non-verbal communication plays a large role in online competitive multiplayer games, as team members attempt to coordinate with each other without distraction achieve victory. Some games enable this through "pings," alerts that are easy activate and provide auditory visual cues for teammates. In paper, we review the literature on gestures non-verbal and, an empirical analysis of 84,489 players across 10,293 matches popular game, League Legends, illustrate ping use test impact actions...

Political trolls initiate online discord not only for the lulz (laughs), but also ideological reasons, such as promoting their desired political candidates. troll groups recently gained spotlight because they were considered central in helping Donald Trump win 2016 US presidential election, which involved difficult mass mobilizations. face unique challenges must build own communities while simultaneously disrupting others. However, little is known about how mobilize sufficient participation...

Researchers from many different disciplines rely on social media data as a resource. Whereas some platforms explicitly allow collection, even facilitating it through an API, others forbid automated or manual collection processes. A current topic of debate within the computing research community involves ethical (or legal) implications collecting in ways that violate Terms Service (TOS). Using sample TOS over one hundred sites around world, we analyze language and content order to better...

Gold farming is a set of illicit practices in which players massively multiplayer online games gather and distribute virtual goods for real money. Using anonymized data from popular game to construct networks characters involved gold farming, we examine the trade farmers, their trading affiliates, uninvolved at large. Our analysis these complex networks' connectivity, assortativity, attack tolerance indicate that farmers exhibit distinctive behavioral signatures are masked by brokering...

Wikipedia editors are uniquely motivated to collaborate around current and breaking news events. However, the speed, urgency, intensity with which these collaborations unfold also impose a substantial burden on editors' abilities effectively coordinate tasks process information. We analyze patterns of activity following 2011 Tōhoku earthquake tsunami understand dynamics editor attention participation, novel practices employed articles, resulting coauthorship structures emerge between...

Prior scholarship on Wikipedia's collaboration processes has examined the properties of either editors or articles, but not interactions between both. We analyze coauthorship network Wikipedia articles about breaking news demanding intense coordination and compare these who contribute to them contemporary historical events. Using p*/ERGM methods test a multi-level, multi-theoretical model, we identify how editors' attributes editing patterns interact with articles' authorship history....

Gold farming refers to the illicit practice of gathering and selling virtual goods in online games for real money. Although around one million gold farmers engage related activities, date a systematic study identifying has not been done. In this paper we use data from massively-multiplayer role-playing game (MMORPG) EverQuest II identify farmers. We perform an exploratory logistic regression analysis salient descriptive statistics followed by machine learning binary classification problem...

Despite the fact that Wikipedia articles about current events are more popular and attract contributions than typical articles, canonical studies of have only analyzed pre-existing information. We expect co-authoring breaking news incidents to exhibit high-tempo coordination dynamics which not found in historical Using 1.03 million revisions made by 158,384 users 3,233 English disasters, catastrophes, conflicts since 1990, we construct "article trajectories" editor interactions as they...

Social media have been employed to assess public opinions on events, markets, and policies. Most current work focuses either developing aggregated measures or opinion extraction methods like sentiment analysis. These approaches suffer from unpredictable turnover in the participants information they react to, making it difficult distinguish meaningful shifts those that follow known information. We propose a novel approach tame these sources of uncertainty through introduction "computational...

Multiplayer online battle arena games provide an excellent opportunity to study team performance. When designing a team, players must negotiate proficiency-congruency dilemma between selecting roles that best match their experience and complement the existing on team. We adopt mixed-methods approach explore how this dilemma. Using data from League of Legends, we define similarity space operationalize design constructs about role proficiency, generality, congruency. collect publicly available...

When people experience harassment online, from individual threats or invective to coordinated campaigns of harassment, they have the option report harassers and content platform where has occurred. Platforms then evaluate reports against terms use other policies decide whether remove take action alleged harasser--or not. On Twitter, harassing accounts can be deleted entirely, suspended (with made unavailable pending appeal specific changes), sent a warning. Some platforms, including Twitter...

Social movements use social computing systems to complement offline mobilizations, but prior literature has focused almost exclusively on movement actors' of media. In this paper, we analyze participation and attention topics connected with the Black Lives Matter in English language version Wikipedia between 2014 2016. Our results point (1) intensively document connect historical contemporary events, (2) collaboratively migrate activity support coverage new (3) dynamically re-appraise...

Today, disaster events are mobilizing digital volunteers to meet the data needs of those on ground. One form this crowd work is Volunteered Geographic Information. This peer-produced spatial creates most up-to-date map affected region; maintaining accuracy these therefore a critical task. Accuracy one aspect quality, relative concept requiring standards measure against. The field Information Sciences has developed for comparison, achieving widespread acceptance. However, peer production...