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CORR
2008
Springer
15 years 6 months ago
2008
Springer
The Directed Maximum Leaf Out-Branching problem is to find an out-branching (i.e. a rooted oriented spanning tree) in a given digraph with the maximum number of leaves. In this pap...
155
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CORR
2008
Springer
15 years 6 months ago
2008
Springer
Contraction hierarchies are a simple hierarchical routing technique that has proved extremely efficient for static road networks. We explain how to generalize them to networks wit...
136
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CORR
2008
Springer
15 years 6 months ago
2008
Springer
Compressed sensing is a technique to sample compressible signals below the Nyquist rate, whilst still allowing near optimal reconstruction of the signal. In this paper we present ...
178
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CORR
2008
Springer
15 years 6 months ago
2008
Springer
We exhibit a canonical basis of eigenvectors for the discrete Fourier transform (DFT). The transition matrix from the standard basis to defines a novel transform which we call ...
138
click to vote
CORR
2008
Springer
15 years 6 months ago
2008
Springer
In many physical statistical, biological and other investigations it is desirable to approximate a system of points by objects of lower dimension and/or complexity. For this purpo...