In Mini-Challenge 1, you used microblog data to characterize an epidemic spread.
In Mini-Challenge 2, you conducted cyber security analysis for situational awareness of a corporate network.
In Mini-Challenge 3, you investigated terrorist activity in the region.
For the Grand Challenge, you are charged with investigating the cause of the epidemic.Read More (from a PDF copy of the original task description of all 2011 Challenges) See also the PDF copies of the original 2011 Challenge website pages (soon to be or already disconnected). Those files were relevant to mini challenges and the grand challenge, and saved here for archival purposes only: