That's true, but here is the paper from Microsoft Research and it seems to be lacking in how those data files were generated: http://research.microsoft.com/pub

That's true, but here is the paper from Microsoft Research and it seems to be lacking in how those data files were generated: http://research.microsoft.com/pubs/156453/icde12_lars.pdf http://research.microsoft.com/pubs/156453/icde12_lars.pdf