796 search results - page 5 / 160 » Approximating the centroid is hard |
ADCM
2010
13 years 7 months ago
2010
Let Rd be a compact convex set of positive measure. In a recent paper, we established a definiteness theory for cubature formulae of order two on . Here we study extremal propert...
CORR
2007
Springer
13 years 7 months ago
2007
Springer
An instance of the maximum constraint satisfaction problem (Max CSP) is a nite collection of constraints on a set of variables, and the goal is to assign values to the variables ...
SODA
2010
ACM
14 years 4 months ago
2010
ACM
If a two-player social welfare maximization problem does not admit a PTAS, we prove that any maximal-in-range truthful mechanism that runs in polynomial time cannot achieve an app...
FOCS
2004
IEEE
13 years 11 months ago
2004
IEEE
Let p > 1 be any fixed real. We show that assuming NP RP, there is no polynomial time algorithm that approximates the Shortest Vector Problem (SVP) in p norm within a constant ...
IPL
2010
13 years 6 months ago
2010
We show that the problem of computing a minimum distortion embedding of a given graph into a path remains NP-hard when the input graph is restricted to a bipartite, cobipartite, o...