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GIS
2006
ACM
14 years 6 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
SOUPS
2010
ACM
13 years 9 months ago
A closer look at recognition-based graphical passwords on mobile devices
Graphical password systems based on the recognition of photographs are candidates to alleviate current over-reliance on alphanumeric passwords and PINs. However, despite being bas...
Paul Dunphy, Andreas P. Heiner, N. Asokan
GIS
2007
ACM
13 years 11 months ago
Cell-based generalization of 3D building groups with outlier management
In this paper, we present a technique that generalizes 3D building groups of virtual 3D city models according to a cell structure that is derived from infrastructure networks. In ...
Tassilo Glander, Jürgen Döllner
VRCAI
2006
ACM
13 years 11 months ago
Parallel-split shadow maps for large-scale virtual environments
Shadowing effects dramatically enhance the realism of virtual environments by providing useful visual cues. Shadow mapping is an efficient algorithm for real-time shadow renderin...
Fan Zhang, Hanqiu Sun, Leilei Xu, Lee Kit Lun
SP
2010
IEEE
220views Security Privacy» more  SP 2010»
13 years 9 months ago
TaintScope: A Checksum-Aware Directed Fuzzing Tool for Automatic Software Vulnerability Detection
—Fuzz testing has proven successful in finding security vulnerabilities in large programs. However, traditional fuzz testing tools have a well-known common drawback: they are in...
Tielei Wang, Tao Wei, Guofei Gu, Wei Zou