Sciweavers

COR
2006

Sweep synchronization as a global propagation mechanism

13 years 11 months ago
Sweep synchronization as a global propagation mechanism
This paper presents a new generic filtering algorithm which simultaneously considers n conjunctions of constraints as well as those constraints mentioning some variables Yk of the pairs X,Yk (1kn) occurring in these conjunctions. The main benefit of this new technique comes from the fact that, for adjusting the bounds of a variable X according to n conjunctions, we do not perform n sweeps in an independent way but rather synchronize them. We then specialize this technique to the non-overlapping rectangles constraint where we consider the case where several rectangles of height one have the same X coordinate for their origin as well as the same length. For this specific constraint we come up with an incremental bipartite matching algorithm which is triggered while we sweep over the time axis.
Nicolas Beldiceanu, Mats Carlsson, Sven Thiel
Added 11 Dec 2010
Updated 11 Dec 2010
Type Journal
Year 2006
Where COR
Authors Nicolas Beldiceanu, Mats Carlsson, Sven Thiel
Comments (0)