1941 search results - page 27 / 389 » On the Hardness of Approximate Reasoning |
161
click to vote
STOC
2006
ACM
16 years 3 days ago
2006
ACM
We show that for any constant ε > 0, there is no Ω(log1−ε M)approximation algorithm for the directed congestion minimization problem on networks of size M unless NP ⊆ Z...
153
click to vote
ICCV
2005
IEEE
15 years 11 months ago
2005
IEEE
We derive the clustering problem from first principles showing that the goal of achieving a probabilistic, or ”hard”, multi class clustering result is equivalent to the algeb...
163
click to vote
AAAI
2006
15 years 7 months ago
2006
The use of embedded technology has become widespread. Many complex engineered systems comprise embedded features to perform self-diagnosis or self-reconfiguration. These features ...
150
click to vote
FOCS
2008
IEEE
16 years 18 days ago
2008
IEEE
We study the problem of finding the minimum size DNF formula for a function f : {0, 1}d → {0, 1} given its truth table. We show that unless NP ⊆ DTIME(npoly(log n) ), there i...
170
click to vote
STOC
2003
ACM
15 years 11 months ago
2003
ACM
Given a k-uniform hypergraph, the Ek-Vertex-Cover problem is to find the smallest subset of vertices that intersects every hyperedge. We present a new multilayered PCP constructi...