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193
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EJC
2008
15 years 6 months ago
2008
Partially ordered sets labeled with k labels (k-posets) and their homomorphisms are examined. The homomorphicity order of k-posets is shown to be a distributive lattice. Homomorph...
207
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MOBIHOC
2012
ACM
13 years 9 months ago
2012
ACM
A key feature of wireless communications is the spatial reuse. However, the spatial aspect is not yet well understood for the purpose of designing efficient spectrum sharing mecha...
288
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CP
2009
Springer
16 years 7 months ago
2009
Springer
The ALLDIFFERENT constraint was one of the first global constraints [17] and it enforces the conjunction of one binary constraint, the not-equal constraint, for every pair of varia...
206
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CIVR
2007
Springer
16 years 25 days ago
2007
Springer
Ensuring the uniqueness of trademark images and protecting their identities are the most important objectives for the trademark registration process. To prevent trademark infringe...
154
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ESA
2006
Springer
15 years 10 months ago
2006
Springer
A coloring is proper if each color class induces connected components of order one (where the order of a graph is its number of vertices). Here we study relaxations of proper two-c...