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SSD
2005
Springer
105views Database» more  SSD 2005»
16 years 10 days ago
Evaluation of Top-k OLAP Queries Using Aggregate R-Trees
Abstract. A top-k OLAP query groups measures with respect to some abstraction level of interesting dimensions and selects the k groups with the highest aggregate value. An example ...
Nikos Mamoulis, Spiridon Bakiras, Panos Kalnis
ICS
2003
Tsinghua U.
16 years 2 days ago
Roccom: an object-oriented, data-centric software integration framework for multiphysics simulations
We describe an object-oriented software integration frameccom, abstracted from our five years of experience in developing a complex, integrated code for rocket simulation. Roccom...
Xiangmin Jiao, Michael T. Campbell, Michael T. Hea...
CDC
2009
IEEE
139views Control Systems» more  CDC 2009»
15 years 11 months ago
Reachability analysis for continuous systems under shared control: Application to user-interface design
— We extend techniques for a reachability-based ion to continuous systems under shared control, that is, systems which have both inputs controlled by the automation and inputs co...
Nikolai Matni, Meeko Oishi
CAISE
1999
Springer
15 years 11 months ago
Designing the Global Data Warehouse with SPJ Views
Abstract. A global Data warehouse (DW) integrates data from multiple distributed heterogeneous databases and other information sources. DW can be abstractly seen as a set of materi...
Dimitri Theodoratos, Spyros Ligoudistianos, Timos ...
HYBRID
1997
Springer
15 years 10 months ago
On-Line, Reflexive Constraint Satisfaction for Hybrid Systems: First Steps
Abstract. We can achieve guaranteed constraint satisfaction of a hybrid dynamical system (which takes into account the underlying continuous dynamics) in a simple, hierarchical con...
Michael S. Branicky