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MOC
2002
70views more  MOC 2002»
13 years 8 months ago
Positivity preserving finite element approximation
We consider finite element operators defined on "rough" functions in a bounded polyhedron in RN . Insisting on preserving positivity in the approximations, we discover a...
Ricardo H. Nochetto, Lars B. Wahlbin
SIGMOD
2009
ACM
191views Database» more  SIGMOD 2009»
14 years 9 months ago
Scalable skyline computation using object-based space partitioning
The skyline operator returns from a set of multi-dimensional objects a subset of superior objects that are not dominated by others. This operation is considered very important in ...
Shiming Zhang, Nikos Mamoulis, David W. Cheung
HYBRID
2000
Springer
14 years 15 days ago
Towards Procedures for Systematically Deriving Hybrid Models of Complex Systems
Abstract. In many cases, complex system behaviors are naturally modeled as nonlinear differential equations. However, these equations are often hard to analyze because of "sti...
Pieter J. Mosterman, Gautam Biswas
USENIX
2004
13 years 10 months ago
Dynamic Instrumentation of Production Systems
This paper presents DTrace, a new facility for dynamic instrumentation of production systems. DTrace features the ability to dynamically instrument both user-level and kernel-leve...
Bryan Cantrill, Michael W. Shapiro, Adam H. Levent...
VISUALIZATION
1991
IEEE
14 years 12 days ago
A Tool for Visualizing the Topology of Three-Dimensional Vector Fields
We describe a software system, TOPO, that numerically analyzes and graphically displays topological aspects of a three dimensional vector field, v, to produce a single, relativel...
Al Globus, C. Levit, T. Lasinski