1,698 research outputs found
Twitterâs big hitters
We describe the results of a new computational experiment on Twitter data. By listening to Tweets on a selected topic, we generate a dynamic social interaction network. We then apply a recently proposed dynamic network analysis algorithm that ranks Tweeters according to their ability to broadcast information. In particular, we study the evolution of importance rankings over time. Our presentation will also describe the outcome of an experiment where results from automated ranking algorithms are compared with the views of social media experts
Patterns of implicit and non-follower retweet propagation: investigating the role of applications and hashtags
Existing literature on retweets seems to focus mainly on retweets created using explicit, formal retweeting mechanisms, such as Twitter's own native retweet function, and the prefixing of the terms 'RT' or 'via' in front of copied tweets. However, retweets can also be made using implicit, informal mechanisms. These include tweet replies and other mechanisms, which use neither the native nor RT/via mechanisms, but their content and timelines suggest the likelihood of being a retweet. Moreover, retweets can also occur with or without a defined follower/following network path between a tweet originator and a retweeter. This paper presents an initial taxonomy of propagation based on seven different ways a tweet may spread: native, native non-follower, RT/Via, RT/Via non-follower, replies, non-follower replies and other implicit 'retweets'. An experiment has examined this new model, by investigating where tweets containing URLs from the domains of online petitions, charity fundraisers, news portals, and YouTube videos can be classified into the seven different categories. When including other implicit 'retweets', more than 50% of all the retweets found across all four domains were classified as implicit retweets, while more than 79% of all retweets were made by non-followers. More work needs to be done on the composition of other implicit 'retweets'. Initial investigations found hashtags in 99-100% of these tweets, suggesting that retweeting using conventional mechanisms may not be the main method that URLs get propagated across microblogs
How open are journalists on Twitter? Trends towards the end-user journalism
The many activities of journalists on Twitter should be analyzed. Are they doing a different kind of journalism? With a content analysis of 1125 tweets, this study reveals trends of some Spanish journalists using Twitter. A traditional role like gatekeeping can be highly amplified in terms of transparency and accountability with actions as retweeting or linking. The landscape offered by this platform is framed with the "ambient journalism", which will help to understand the proposal of this study: the end-user journalism. The findings will show the level of opening with the audience in aspects about replies, requests and linking
Tweeting the Mind and Instagramming the Heart: Exploring Differentiated Content Sharing on Social Media
Understanding the usage of multiple OSNs (Online Social Networks) has been of
significant research interest as it helps in identifying the unique and
distinguishing trait in each social media platform that contributes to its
continued existence. The comparison between the OSNs is insightful when it is
done based on the representative majority of the users holding active accounts
on all the platforms. In this research, we collected a set of user profiles
holding accounts on both Twitter and Instagram, these platforms being of
prominence among a majority of users. An extensive textual and visual analysis
on the media content posted by these users revealed that both these platforms
are indeed perceived differently at a fundamental level with Instagram engaging
more of the users' heart and Twitter capturing more of their mind. These
differences got reflected in almost every microscopic analysis done upon the
linguistic, topical and visual aspects.Comment: 4 pages, 8 figure
Excitable human dynamics driven by extrinsic events in massive communities
Using empirical data from a social media site (Twitter) and on trading
volumes of financial securities, we analyze the correlated human activity in
massive social organizations. The activity, typically excited by real-world
events and measured by the occurrence rate of international brand names and
trading volumes, is characterized by intermittent fluctuations with bursts of
high activity separated by quiescent periods. These fluctuations are broadly
distributed with an inverse cubic tail and have long-range temporal
correlations with a power spectrum. We describe the activity by a
stochastic point process and derive the distribution of activity levels from
the corresponding stochastic differential equation. The distribution and the
corresponding power spectrum are fully consistent with the empirical
observations.Comment: 9 pages, 3 figure
A Semi-automatic Method for Efficient Detection of Stories on Social Media
Twitter has become one of the main sources of news for many people. As
real-world events and emergencies unfold, Twitter is abuzz with hundreds of
thousands of stories about the events. Some of these stories are harmless,
while others could potentially be life-saving or sources of malicious rumors.
Thus, it is critically important to be able to efficiently track stories that
spread on Twitter during these events. In this paper, we present a novel
semi-automatic tool that enables users to efficiently identify and track
stories about real-world events on Twitter. We ran a user study with 25
participants, demonstrating that compared to more conventional methods, our
tool can increase the speed and the accuracy with which users can track stories
about real-world events.Comment: ICWSM'16, May 17-20, Cologne, Germany. In Proceedings of the 10th
International AAAI Conference on Weblogs and Social Media (ICWSM 2016).
Cologne, German
- âŠ