Web-based communities have become important places for people to seek and share expertise. We find that networks in these communities typically differ in their topology from other...
A fair contract signing protocol allows two potentially mistrusted parities to exchange their commitments (i.e., digital signatures) to an agreed contract over the Internet in a f...
For the manual semantic markup of documents to become widespread, users must be able to express annotations that conform to ontologies (or schemas) that have shared meaning. Howev...
This paper describes an application framework for providing and managing personalized, interactive video on the web. The application framework enables content providers and aggreg...
While most collaboration technologies are concerned with supporting particular tasks such as workflows or meetings, many work groups do not have the teamwork skills essential to e...
Gilly Leshed, Diego Perez, Jeffrey T. Hancock, Dan...