We present Drac, a system designed to provide anonymity and unobservability for real-time instant messaging and voice-over-IP communications against a global passive adversary. The...
A conceptual framework for cluster analysis from the viewpoint of p-adic geometry is introduced by describing the space of all dendrograms for n datapoints and relating it to the m...
Kernel methods offer a flexible toolbox for pattern analysis and machine learning. A general class of kernel functions which incorporates known pattern invariances are invariant d...
Actors coordinate their cooperative efforts by acting on the evidence of work previously accomplished. The paper introduces, on the basis of a field study, the concept of stigmerg...
Two important recent trends in military and civilian communications have been the increasing tendency to base operations around an internal network, and the increasing threats to ...