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GIS
2004
ACM
14 years 9 months ago
An abstract model of three-dimensional spatial data types
act Model of Three-Dimensional Spatial Data Types Markus Schneider & Brian E Weinrich University of Florida Department of Computer & Information Science & Engineering G...
Markus Schneider, Brian E. Weinrich
GIS
2005
ACM
14 years 9 months ago
Contraflow network reconfiguration for evacuation planning: a summary of results
Contraflow, or lane reversal, is a way of increasing outbound capacity of a real network by reversing the direction of inbound roads during evacuations. The contraflow is consider...
Sangho Kim, Shashi Shekhar
ESORICS
2009
Springer
14 years 9 months ago
Dynamic Enforcement of Abstract Separation of Duty Constraints
Separation of Duty Constraints David Basin1 , Samuel J. Burri1,2 , and G?unter Karjoth2 1 ETH Zurich, Department of Computer Science, Switzerland 2 IBM Research, Zurich Research La...
David A. Basin, Günter Karjoth, Samuel J. Bur...
STOC
2004
ACM
121views Algorithms» more  STOC 2004»
14 years 9 months ago
Lower bounds for dynamic connectivity
We prove an (lg n) cell-probe lower bound on maintaining connectivity in dynamic graphs, as well as a more general trade-off between updates and queries. Our bound holds even if t...
Mihai Patrascu, Erik D. Demaine
SIGMOD
2008
ACM
139views Database» more  SIGMOD 2008»
14 years 9 months ago
Paths to stardom: calibrating the potential of a peer-based data management system
As peer-to-peer (P2P) networks become more familiar to the database community, intense interest has built up in using their scalability and resilience properties to scale database...
Mihai Lupu, Beng Chin Ooi, Y. C. Tay