We introduce captcha, an automated test that humans can pass, but current computer programs can’t pass: any program that has high success over a captcha can be used to solve an u...
Luis von Ahn, Manuel Blum, Nicholas J. Hopper, Joh...
Active networks allow their users to inject customized programs into the nodes of the network. An extreme case, in which we are most interested, replaces packets with “capsulesâ...
In this paper, we explore flexible name resolution as a way of supporting extensibility for wide-area distributed services. Our approach, called Active Names, maps names to a cha...
Amin Vahdat, Michael Dahlin, Thomas E. Anderson, A...
The Automated Production Systems (APS) are composed of concurrent interacting entities. Then any model should exhibit parallel and sequential behaviours. The Grafcet is now well e...
Abstract. This paper presents a mixin based class and method combination mechanism with block structure propagation. Traditionally, mixins can be composed to form new classes, poss...