144 search results - page 18 / 29 » Improved Approximation Guarantees for Sublinear-Time Fourier... |
COCOON
2007
Springer
14 years 1 months ago
2007
Springer
We propose new algorithms and improved bounds for interference-aware routing in wireless networks. First, we prove that n arbitrarily matched source-destinations pairs with average...
FOCS
2004
IEEE
13 years 11 months ago
2004
IEEE
We show that finding small solutions to random modular linear equations is at least as hard as approximating several lattice problems in the worst case within a factor almost line...
MP
2006
13 years 7 months ago
2006
Given an undirected graph G = (V;E) and three speci ed terminal nodes t1;t2;t3, a 3-cut is a subset A of E such that no two terminals are in the same component of GnA. If a non-neg...
ISCAS
2008
IEEE
14 years 1 months ago
2008
IEEE
— Non-negative matrix factorization (NMF), i.e. V ≈ WH where both V, W and H are non-negative has become a widely used blind source separation technique due to its part based r...
ICALP
2004
Springer
14 years 23 days ago
2004
Springer
We study graph orientations that minimize the entropy of the in-degree sequence. The problem of finding such an orientation is an interesting special case of the minimum entropy ...