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MFCS
2009
Springer
15 years 11 months ago
An Improved Approximation Bound for Spanning Star Forest and Color Saving
We present a simple algorithm for the maximum spanning star forest problem. We take advantage of the fact that the problem is a special case of complementary set cover and we adapt...
Stavros Athanassopoulos, Ioannis Caragiannis, Chri...
MODELS
2009
Springer
15 years 11 months ago
An Example Is Worth a Thousand Words: Composite Operation Modeling By-Example
Abstract. Predefined composite operations are handy for efficient modeling, e.g., for the automatic execution of refactorings, and for the introduction of patterns in existing mod...
Petra Brosch, Philip Langer, Martina Seidl, Konrad...
CP
2001
Springer
15 years 11 months ago
Solving Disjunctive Constraints for Interactive Graphical Applications
In interactive graphical applications we often require that objects do not overlap. Such non-overlap constraints can be modelled as disjunctions of arithmetic inequalities. Unfortu...
Kim Marriott, Peter Moulder, Peter J. Stuckey, Ala...
CTRSA
2001
Springer
120views Cryptology» more  CTRSA 2001»
15 years 11 months ago
Forward-Secure Threshold Signature Schemes
We consider the usage of forward security with threshold signature schemes. This means that even if more than the threshold number of players are compromised, some security remain...
Michel Abdalla, Sara K. Miner, Chanathip Namprempr...
DAWAK
2001
Springer
15 years 11 months ago
Optimization Algorithms for Simultaneous Multidimensional Queries in OLAP Environments
Multi-Dimensional Expressions (MDX) provide an interface for asking several related OLAP queries simultaneously. An interesting problem is how to optimize the execution of an MDX q...
Panos Kalnis, Dimitris Papadias