The National Science Digital Library (NSDL), launched in December 2002, is emerging as a center of innovation in digital libraries as applied to education. As a part of this exten...
Byron Marshall, Yiwen Zhang, Hsinchun Chen, Ann M....
Authorization systems today are increasingly complex. They span domains of administration, rely on many different authentication sources, and manage permissions that can be as com...
Markus Lorch, Seth Proctor, Rebekah Lepro, Dennis ...
The Internet has opened opportunities for efficient on-line trading, and researchers have developed algorithms for various auctions, as well as exchanges for standardized commoditi...