Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( ) or https://
means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Data corresponding to graphs in paper. This dataset is associated with the following publication: Xing, Y., A. Burdsall, A. Owens, M. Magnuson, and W. Harper. The effect of mixing and...
data.gov
An official website of the GSA's Technology Transformation Services