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GIS
2006
ACM
16 years 7 months ago
Representation of periodic moving objects in databases
In the real world, lots of objects with changing position can be found. Some of them repeat the same movement several times, called periodic movements. Examples include airplanes,...
Ralf Hartmut Güting, Thomas Behr, Victor Teix...
SIGMOD
2006
ACM
109views Database» more  SIGMOD 2006»
16 years 6 months ago
OMCAT: optimal maintenance of continuous queries' answers for trajectories
We present our prototype system, OMCAT, which optimizes the reevaluation of a set of pending continuous spatio-temporal queries on trajectory data, when some of the trajectories a...
Hui Ding, Goce Trajcevski, Peter Scheuermann
CCS
2009
ACM
16 years 1 months ago
A probabilistic approach to hybrid role mining
Role mining algorithms address an important access control problem: configuring a role-based access control system. Given a direct assignment of users to permissions, role mining...
Mario Frank, Andreas P. Streich, David A. Basin, J...
DAMON
2009
Springer
16 years 1 months ago
A new look at the roles of spinning and blocking
Database engines face growing scalability challenges as core counts exponentially increase each processor generation, and the efficiency of synchronization primitives used to prot...
Ryan Johnson, Manos Athanassoulis, Radu Stoica, An...
HICSS
2008
IEEE
126views Biometrics» more  HICSS 2008»
16 years 1 months ago
A Cross-Cultural Investigation of the Goal-Attainment-Likelihood Construct and Its Effect on Satisfaction with Technology Suppor
1 Collaboration technologies often provide benefits to teams working together to achieve a common goal. Such technologies may be abandoned, however, if users are dissatisfied with...
Bruce A. Reinig, Robert O. Briggs, Gert-Jan de Vre...