Several computer-based learning support systems and methods help learners to master metacognitive activity. Which systems and methods are designed to eliminate which difficulties a...
Designers are often faced with difficult tradeoffs between easing the user's burden by making security decisions for them and offering features that ensure that users can mak...
Mary Ellen Zurko, Charlie Kaufman, Katherine Spanb...
We introduce delegation schemes wherein a user may delegate certain rights to himself, but may not safely delegate these rights to others. In our motivating application, a user ha...
Oded Goldreich, Birgit Pfitzmann, Ronald L. Rivest