217 search results - page 21 / 44 » A new upper bound on the cyclic chromatic number |
APPROX
2010
Springer
13 years 9 months ago
2010
Springer
In 2002 Jackson et al. [JKS02] asked whether AC0 circuits augmented with a threshold gate at the output can be efficiently learned from uniform random examples. We answer this ques...
SPAA
2006
ACM
14 years 1 months ago
2006
ACM
Synchronization is often necessary in parallel computing, but it can create delays whenever the receiving processor is idle, waiting for the information to arrive. This is especia...
ICALP
2010
Springer
13 years 9 months ago
2010
Springer
Abstract. Given a family of subsets of an n-element universe, the kcover problem asks whether there are k sets in the family whose union contains the universe; in the k-packing pro...
COCOON
2008
Springer
13 years 9 months ago
2008
Springer
In this paper, we consider a new visual cryptography scheme that allows for sharing of multiple secret images on graphs: we are given an arbitrary graph (V, E) where every node an...
PODC
2006
ACM
14 years 1 months ago
2006
ACM
Coloring the nodes of a graph with a small number of colors is one of the most fundamental problems in theoretical computer science. In this paper, we study graph coloring in a di...