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DAGSTUHL
2007
15 years 8 months ago
Model equivalence of PRISM programs
The problem of deciding the probability model equivalence of two PRISM programs is addressed. In the finite case this problem can be solved (albeit slowly) using techniques from a...
James Cussens
FAW
2010
Springer
225views Algorithms» more  FAW 2010»
15 years 7 months ago
Computing Minimum Diameter Color-Spanning Sets
We study the minimum diameter color-spanning set problem which has recently drawn some attention in the database community. We show that the problem can be solved in polynomial tim...
Rudolf Fleischer, Xiaoming Xu
ALGORITHMICA
2010
75views more  ALGORITHMICA 2010»
15 years 7 months ago
In-Place Algorithms for Computing (Layers of) Maxima
We describe space-efficient algorithms for solving problems related to finding maxima among points in two and three dimensions. Our algorithms run in optimal O(n log n) time and oc...
Henrik Blunck, Jan Vahrenhold
ECCC
2008
107views more  ECCC 2008»
15 years 7 months ago
A Quantum Time-Space Lower Bound for the Counting Hierarchy
We obtain the first nontrivial time-space lower bound for quantum algorithms solving problems related to satisfiability. Our bound applies to MajSAT and MajMajSAT, which are compl...
Dieter van Melkebeek, Thomas Watson
DM
2006
76views more  DM 2006»
15 years 7 months ago
Lex M versus MCS-M
We study the problem of minimal triangulation of graphs. One of the first algorithms to solve this problem was Lex M, which was presented in 1976. A new algorithm, and a simplific...
Yngve Villanger