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CCS
2008
ACM
15 years 9 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 1 months 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 10 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 7 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