574 search results - page 3 / 115 » Approximation Algorithms for Free-Label Maximization |
ALGOSENSORS
2010
Springer
13 years 7 months ago
2010
Springer
We study the problem of maximizing the lifetime of a sensor network assigned to monitor a given area. Our main result is a linear time dual approximation algorithm that comes arbit...
FOCS
2008
IEEE
13 years 9 months ago
2008
IEEE
In this paper we consider the following maximum budgeted allocation (MBA) problem: Given a set of m indivisible items and n agents; each agent i willing to pay bij on item j and w...
CORR
2010
Springer
13 years 8 months ago
2010
Springer
We consider the problem of maximizing a nonnegative (possibly non-monotone) submodular set function with or without constraints. Feige et al. [9] showed a 2/5-approximation for th...
PODS
2011
ACM
12 years 11 months ago
2011
ACM
In deletion propagation, tuples from the database are deleted in order to reflect the deletion of a tuple from the view. Such an operation may result in the (often necessary) del...
JMLR
2012
11 years 11 months ago
2012
Bisubmodularity extends the concept of submodularity to set functions with two arguments. We show how bisubmodular maximization leads to richer value-of-information problems, usin...