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ICCCN
2008
IEEE
14 years 4 months ago
2008
IEEE
— The current access point (AP) association schemes in wireless LANs, such as IEEE 802.11, cause an unbalanced load which reduces the performance of both the entire network and i...
SOFSEM
2010
Springer
14 years 5 months ago
2010
Springer
In this paper, we study the complexity and (in)approximability of the minimum label vehicle routing problem. Given a simple complete graph G = (V, E) containing a special vertex 0 ...
FCT
1999
Springer
14 years 2 months ago
1999
Springer
One way of suggesting that an NP problem may not be NP-complete is to show that it is in the promise class UP. We propose an analogous new method—weaker in strength of evidence ...
COCO
2004
Springer
14 years 3 months ago
2004
Springer
We prove a parameterized analog of Schaefer’s Dichotomy Theorem: we show that for every finite boolean constraint family F, deciding whether a formula containing constraints fr...
COCOON
2006
Springer
14 years 2 months ago
2006
Springer
We consider the problem of placing a set of disks in a region containing obstacles such that no two disks intersect. We are given a bounding polygon P and a set R of possibly inte...