7129 search results - page 30 / 1426 » Approximation Algorithms for Treewidth |
ECCC
2007
14 years 9 months ago
2007
Abstract. Combining classical approximability questions with parameterized complexity, we introduce a theory of parameterized approximability. The main intention of this theory is ...
STOC
1999
ACM
15 years 2 months ago
1999
ACM
We give an O( log n) factor approximation algorithm for covering a rectilinear polygon with holes using axis-parallel rectangles. This is the first polynomial time approximation a...
FCT
2005
Springer
15 years 3 months ago
2005
Springer
Block sorting is used in connection with optical character recognition (OCR). Recent work has focused on finding good strategies which perform well in practice. Block sorting is N...
COCO
2004
Springer
15 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...
MST
2010
14 years 8 months ago
2010
Given a graph G we consider the problem of preprocessing it so that given two vertices x,y and a set X of vertices, we can efficiently report the shortest path (or just its length...