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» Exponential-Time Approximation of Hard Problems
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CORR
2008
Springer
99views Education» more  CORR 2008»
13 years 11 months ago
Exponential-Time Approximation of Hard Problems
Marek Cygan, Lukasz Kowalik, Marcin Pilipczuk, Mat...
CORR
2000
Springer
133views Education» more  CORR 2000»
13 years 10 months ago
On Exponential-Time Completeness of the Circularity Problem for Attribute Grammars
Attribute grammars (AGs) are a formal technique for defining semantics of programming languages. Existing complexity proofs on the circularity problem of AGs are based on automata...
Pei-Chi Wu
IWPEC
2009
Springer
14 years 5 months ago
An Exponential Time 2-Approximation Algorithm for Bandwidth
The bandwidth of a graph G on n vertices is the minimum b such that the vertices of G can be labeled from 1 to n such that the labels of every pair of adjacent vertices differ by ...
Martin Fürer, Serge Gaspers, Shiva Prasad Kas...
STACS
2005
Springer
14 years 4 months ago
Algorithmics in Exponential Time
Exponential algorithms, i.e. algorithms of complexity O(cn ) for some c > 1, seem to be unavoidable in the case of NP-complete problems (unless P=NP), especially if the problem ...
Uwe Schöning
COCO
2004
Springer
147views Algorithms» more  COCO 2004»
14 years 2 months ago
The Complexity of the Covering Radius Problem on Lattices and Codes
We initiate the study of the computational complexity of the covering radius problem for point lattices, and approximation versions of the problem for both lattices and linear cod...
Venkatesan Guruswami, Daniele Micciancio, Oded Reg...