Recently proposed usage control concept and models extend traditional access control models with features for contemporary distributed computing systems, including continuous acce...
Domain specific information retrieval has become in demand. Not only domain experts, but also average non-expert users are interested in searching domain specific (e.g., medical a...
Existing security models require that information of a given security level be prevented from “leaking” into lower-security information. High-security applications must be dem...
This paper describes an agent-based recommendation system developed to support knowledge acquisition and sharing processes. Its purpose is to aid the process of community building...
Mauro F. Koyama, Olga Nabuco, Francisco Edeneziano...
—The use of vital signs as a biometric is a potentially viable approach in a variety of application scenarios such as security and personalized health care. In this paper, a nove...