We introduce the knotty gesture, a simple yet powerful technique for interacting with paper. Knots are tiny circles that can be added to any gesture. Users can leave subtle marks ...
There is an amazing paucity of data that is collected directly on users' personal computers. One key reason for this is the perception among researchers that users are unwill...
Abstract. At present, network users have to manage a set of authentication credentials (usually a username/password pair) for every service with which they are registered. Single S...
Program execution traces are frequently used in industry and academia. Yet, most trace-compression algorithms have to be re-implemented every time the trace format is changed, whi...
In this paper we study the traitor tracing problem, a technique to help combat piracy of copyrighted materials. When a pirated copy of the material is observed, a traitor tracing ...