6082 search results - page 1197 / 1217 » A System for Adaptive Information Retrieval |
CISS
2008
IEEE
14 years 1 months ago
2008
IEEE
—Reliable wireless communications often requires accurate knowledge of the underlying multipath channel. This typically involves probing of the channel with a known training wave...
ICC
2007
IEEE
14 years 1 months ago
2007
IEEE
— The EPC Network is an industry proposal to build a global information architecture for objects carrying RFID tags with Electronic Product Codes (EPC). A so-called Object Naming...
CCS
2007
ACM
14 years 1 months ago
2007
ACM
In this paper, we study the maintenance of role-based access control (RBAC) models in database environments using transitive closure relations. In particular, the algorithms that ...
ECTEL
2007
Springer
14 years 1 months ago
2007
Springer
Parallel to the societal diffusion of digital technologies, the debate on their impacts and requirements has created terms like ICT literacy, digital literacy or digital competenc...
SENSYS
2006
ACM
14 years 1 months ago
2006
ACM
Sensor networks are fundamentally constrained by the difficulty and energy expense of delivering information from sensors to sink. Our work has focused on garnering additional si...