Research Objectives

Truthy is a system to analyze and visualize the diffusion of information on Twitter. The Truthy system evaluates thousands of tweets an hour to identify new and emerging bursts of activity around memes of various flavors. The data and statistics provided by Truthy are designed to aid in the study of social epidemics: How do memes propagate through the Twittersphere? What causes a burst of popularity?

We also plan to use Truthy to detect political smears, astroturfing, misinformation, and other social pollution. While the vast majority of memes arise in a perfectly organic manner, driven by the complex mechanisms of life on the Web, some are engineered by the shady machinery of high-profile congressional campaigns. Truthy uses a sophisticated combination of text and data mining, social network analysis, and complex networks models. To train our algorithms, we leverage crowdsourcing: we rely on users like you to flag injections of forged grass-roots activity. Therefore, click on the Truthy button when you see a suspicious meme!

System Architecture

System Architecture

Streaming Twitter data is acquired in real-time from the 'Gardenhose'. We match all tweets against a set of keywords to exclude tweets unlikely to contain political discussion, and extract all memes (@mentions, #hash_tags, and urls). We further isolate memes of interest by considering only those memes that have just undergone significant changes in volume, or those that account for a significant portion of the total volume (but perhaps haven't fluctuated very much). We insert these memes in the database, and use the Twitter API to get more information on each.

Research Papers

Please visit CNetS Webpage for details on publications and datasets

Team

Indiana University Center for Complex Networks & Systems Research

Principal Investigators
  Fil Menczer
  Alessandro Flammini
  Johan Bollen
  Alessandro Vespignani

Research Team
  Jacob Ratkiewicz
  Bruno Gonçalves
  Mark Meiss
  Michael Conover
  Alex Rudnick
  Karissa McKelvey
  Snehal Patil
  Luca Aiello
  Przemyslaw Grabowicz
  Clayton Davis

Web Design
  Ying Wang

Additional Collaborators

  Ciro Cattuto, ISI Foundation
  Takis Metaxas, Wellesley College
  Eni Mustafaraj, Wellesley College
  André Panisson, University of Torino
  José Javier Ramasco, ISI Foundation

Contact

Please contact us with feedback, comments, requests, and bugs. We may not be able to respond to all messages but we do read them!