FOCS
2003
IEEE
14 years 29 days ago
2003
IEEE
We give a complexity theoretic classification of homomorphism problems for graphs and, more generally, relational structures obtained by restricting the left hand side structure ...
FOCS
2003
IEEE
14 years 29 days ago
2003
IEEE
FOCS
2003
IEEE
14 years 29 days ago
2003
IEEE
We initiate a general study of pseudo-random implementations of huge random objects, and apply it to a few areas in which random objects occur naturally. For example, a random obj...
FOCS
2003
IEEE
14 years 29 days ago
2003
IEEE
We consider the problem of clustering a collection of elements based on pairwise judgments of similarity and dissimilarity. Bansal, Blum and Chawla (in: Proceedings of 43rd FOCS, ...
FOCS
2003
IEEE
14 years 29 days ago
2003
IEEE
We give a surprisingly short proof that in any planar arrangement of Ò curves where each pair intersects at most a fixed number (×) of times, the -level has subquadratic (Ç´...
FOCS
2003
IEEE
14 years 29 days ago
2003
IEEE
We give improved approximation algorithms for a variety of latency minimization problems. In particular, we give a 3.591 -approximation to the minimum latency problem, improving o...
FOCS
2003
IEEE
14 years 29 days ago
2003
IEEE
We consider a model of learning Boolean functions from examples generated by a uniform random walk on {0, 1}n . We give a polynomial time algorithm for learning decision trees and...
FOCS
2003
IEEE
14 years 29 days ago
2003
IEEE
We show that if an NP-complete problem has a non-adaptive self-corrector with respect to a samplable distribution then coNP is contained in NP/poly and the polynomial hierarchy co...
FOCS
2003
IEEE
14 years 29 days ago
2003
IEEE
In this paper, we give the rst constant-factor approximationalgorithmfor the rooted Orienteering problem, as well as a new problem that we call the Discounted-Reward TSP, motivate...
FOCS
2003
IEEE
14 years 29 days ago
2003
IEEE
We study the stability of the commonly used packet forwarding protocol, FIFO (First In First Out), in the adversarial queueing model. We prove that FIFO can become unstable, i.e.,...