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Copyright notice: This page contains examples of datasets collected by Apollo. Please cite the source of these datasets as the 'Apollo Project, NS CTA' when using these datasets in your publications, demos, or presentations. We suggest citing the following paper as the formal reference to Apollo:

  • Dong Wang, Md Tanvir Amin, Shen Li, Tarek Abdelzaher, Lance Kaplan, Siyu Gu, Chenji Pan, Hengchang Liu, Charu Aggrawal, Raghu Ganti, XinLei Wang, Prasant Mohapatra, Boleslaw Szymanski, Hieu Le, ``Humans as Sensors: An Estimation Theoretic Perspective,'' In Proc. ACM/IEEE Conference on Information Processing in Sensor Networks (IPSN), April 2014.

Please email zaher _at_ illinois _dot_ edu to if you have a request for data about an on-going event. If you want to install apollo on your machine to collect and analyze events, you can follow the instructions provided in the Apollo Installation Manual.

Egypt Unrest

Around 1.8 million tweets were collected from January 31, 2011 to February 19, 2011. (download)

London Riots

Around 800,000 tweets were collected from August 09, 2011 to August 26, 2011. (download)

Japan Tsunami

Around 790,000 tweets were collected from March 10, 2011 to April 9, 2011. (download)

Hurricane Irene

Around 400,000 tweets were collected from August 26, 2011 to September 1, 2011. (download)