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ISAAC

2010

Springer

8 years 2 months ago
2010

Springer

We consider the problem of finding a sparse multiple of a polynomial. Given f F[x] of degree d, and a desired sparsity t, our goal is to determine if there exists a multiple h F[...

ALGORITHMICA

2010

8 years 2 months ago
2010

The problem of computing the chromatic number of a P5-free graph (a graph which contains no path on 5 vertices as an induced subgraph) is known to be NP-hard. However, we show tha...

JCT

2000

8 years 4 months ago
2000

We give a strongly polynomial-time algorithm minimizing a submodular function f given by a value-giving oracle. The algorithm does not use the ellipsoid method or any other linear ...

ORL

2006

8 years 4 months ago
2006

We consider the problem of packing two-dimensional rectangles into the minimum number of unit squares, when 90 rotations are allowed. Our main contribution is a polynomial-time al...

JCT

2006

8 years 4 months ago
2006

We construct a polynomial-time algorithm to approximate the branch-width of certain symmetric submodular functions, and give two applications. The first is to graph "clique-wi...

FSTTCS

2008

Springer

8 years 5 months ago
2008

Springer

ABSTRACT. We study the problem of space-efﬁcient polynomial-time algorithms for directed stconnectivity (STCON). Given a directed graph G, and a pair of vertices s, t, the STCON ...

CRYPTO

2010

Springer

8 years 5 months ago
2010

Springer

At the heart of many recent lattice-based cryptographic schemes is a polynomial-time algorithm that, given a `high-quality' basis, generates a lattice point according to a Ga...

SODA

1997

ACM

8 years 5 months ago
1997

ACM

We give a polynomial-time algorithm for the following problem: Given a degree sequence in which each degree is bounded from above by a constant, select, uniformly at random, an un...

SODA

2001

ACM

8 years 5 months ago
2001

ACM

We explore the natural question of whether all NP-complete problems have a common restriction under which they are polynomially solvable. More precisely, we study what languages a...

ICMLA

2007

8 years 5 months ago
2007

We introduce a polynomial-time algorithm to learn Bayesian networks whose structure is restricted to nodes with in-degree at most k and to edges consistent with the optimal branch...