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CCS
2008
ACM
15 years 8 months ago
On spatio-temporal constraints and inheritance in role-based access control
Pervasive computing environments have created a requirement for spatial- and temporal-aware access control systems. Although temporal, spatial and spatio-temporal role-based acces...
Liang Chen, Jason Crampton
SAINT
2005
IEEE
16 years 13 days ago
On Scalable Modeling of TCP Congestion Control Mechanism for Large-Scale IP Networks
In this paper, we propose an analytic approach of modeling a closed-loop network with multiple feedback loops using fluid-flow approximation. Specifically, we model building bl...
Hiroyuki Ohsaki, Juñya Ujiie, Makoto Imase
SIAMIS
2011
14 years 9 months ago
Level Set Based Multispectral Segmentation with Corners
In this paper we propose an active contour model for segmentation based on the Chan-Vese model. The new model can capture inherent sharp features, i.e., the sharp corners of object...
Wenhua Gao, Andrea L. Bertozzi
TMC
2008
129views more  TMC 2008»
15 years 6 months ago
Mobility Modeling and Performance Evaluation of Heterogeneous Wireless Networks
The future-generation wireless systems will combine heterogeneous wireless access technologies to provide mobile users with seamless access to a diverse set of applications and ser...
Ahmed H. Zahran, Ben Liang, Aladdin Saleh
ICPR
2004
IEEE
16 years 8 months ago
Robust Carving for Non-Lambertian Objects
This paper presents a new surface reconstruction method that extends previous carving methods for non-Lambertian objects by integrating the smoothness and image information of dif...
Gang Zeng, Sylvain Paris, Long Quan