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153
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STACS
2009
Springer
16 years 18 days ago
2009
Springer
ABSTRACT. Canonical models are of central importance in modal logic, in particular as they witness strong completeness and hence compactness. While the canonical model construction...
172
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BMCBI
2005
15 years 5 months ago
2005
Background: Gene duplication and gene loss during the evolution of eukaryotes have hindered attempts to estimate phylogenies and divergence times of species. Although current meth...
147
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CIVR
2005
Springer
15 years 11 months ago
2005
Springer
Abstract. Keypics are graphical metadata intended for indexing of images on the Internet. They are conceived as hand-drawn sketches, not restricted to a definite set. An obvious d...
149
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SODA
2003
ACM
15 years 7 months ago
2003
ACM
We prove a lower bound of 0.3288 n 4¡ for the rectilinear crossing number cr(Kn) of a complete graph on n vertices, or in other words, for the minimum number of convex quadril...
167
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CORR
2008
Springer
15 years 6 months ago
2008
Springer
We consider a problem of considerable practical interest: the recovery of a data matrix from a sampling of its entries. Suppose that we observe m entries selected uniformly at ran...