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CCS
2007
ACM
14 years 2 months ago
Managing RBAC states with transitive relations
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 ...
Chaoyi Pang, David P. Hansen, Anthony J. Maeder
GIS
2006
ACM
14 years 9 months ago
Optimization of multiple continuous queries over streaming satellite data
Remotely sensed data, in particular satellite imagery, play many important roles in environmental applications and models. In particular applications that study (rapid) changes in...
Quinn Hart, Michael Gertz
TPDS
2010
159views more  TPDS 2010»
13 years 6 months ago
Exploring In-Situ Sensing Irregularity in Wireless Sensor Networks
The circular sensing model has been widely used to estimate performance of sensing applications in existing analysis and simulations. While this model provides valuable high-level...
Joengmin Hwang, Tian He, Yongdae Kim
CRYPTO
2005
Springer
97views Cryptology» more  CRYPTO 2005»
14 years 1 months ago
Generic Transformation for Scalable Broadcast Encryption Schemes
Broadcast encryption schemes allow a message sender to broadcast an encrypted data so that only legitimate receivers decrypt it. Because of the intrinsic nature of one-to-many comm...
Jung Yeon Hwang, Dong Hoon Lee, Jongin Lim
IMC
2007
ACM
13 years 9 months ago
Understanding the limitations of transmit power control for indoor wlans
A wide range of transmit power control (TPC) algorithms have been proposed in recent literature to reduce interference and increase capacity in 802.11 wireless networks. However, ...
Vivek Shrivastava, Dheeraj Agrawal, Arunesh Mishra...