Real data sets for bitmap testing

packaged by D. Lemire on April 3rd 2014

As of May 2016, the data is no longer generally distributed as a zip file. Instead it can be found more conveniently on GitHub at at least two locations:

The original file (, 48MB) is still available for those who insist on having it by sftp at [email protected] and [email protected] (password: sftpuser).

Essentially, each file represents a set of integer values. You can create bitmaps out of these files.

The description of the data sets is provided in our papers: