The dataset can be found at: http://research.microsoft.com/en-US/downloads/4495da01-db8c-4041-a7f6-7984a4f6a905/default.aspx

The implementation of some models used in the paper can be found at: http://research.microsoft.com/en-US/downloads/a5c91569-d291-4450-aaab-5bce7995fe0c/default.aspx