796 search results - page 98 / 160 » Approximating the centroid is hard |
RECOMB
2007
Springer
14 years 8 months ago
2007
Springer
Abstract. Side-chain prediction is an important subproblem of the general protein folding problem. Despite much progress in side-chain prediction, performance is far from satisfact...
SODA
2010
ACM
14 years 5 months ago
2010
ACM
abstract Subhash Khot Assaf Naor In the kernel clustering problem we are given a (large) n ? n symmetric positive semidefinite matrix A = (aij) with n i=1 n j=1 aij = 0 and a (sma...
FOCS
2009
IEEE
14 years 2 months ago
2009
IEEE
— In a landmark paper [32], Papadimitriou introduced a number of syntactic subclasses of TFNP based on proof styles that (unlike TFNP) admit complete problems. A recent series of...
ESA
2009
Springer
14 years 2 months ago
2009
Springer
Dial-a-Ride problems consist of a set V of n vertices in a metric space (denoting travel time between vertices) and a set of m objects represented as source-destination pairs {(si,...
COMPGEOM
2006
ACM
14 years 1 months ago
2006
ACM
We study the problem of minimum-distortion embedding of ultrametrics into the plane and higher dimensional spaces. Ultrametrics are a natural class of metrics that frequently occu...