114 search results - page 19 / 23 » A new approximation algorithm for the multilevel facility lo... |
ICA
2010
Springer
13 years 9 months ago
2010
Springer
The problem of estimating a sparse channel, i.e. a channel with a few non-zero taps, appears in many fields of communication including acoustic underwater or wireless transmissions...
MOBIHOC
2003
ACM
14 years 8 months ago
2003
ACM
In this paper, we address the problem of energy-conscious cache placement in wireless ad hoc networks. We consider a network comprising a server with an interface to the wired net...
PVLDB
2010
13 years 7 months ago
2010
Independence analysis is the problem of determining whether an update affects the result of a query, e.g. a constraint or materialized view. We develop a new, modular framework fo...
DCOSS
2009
Springer
14 years 3 months ago
2009
Springer
We consider dual classes of geometric coverage problems, in which disks, corresponding to coverage regions of sensors, are used to cover a region or set of points in the plane. The...
PVLDB
2010
13 years 7 months ago
2010
This paper introduces a new definition of dense subgraph pattern, the DN-graph. DN-graph considers both the size of the sub-structure and the minimum level of interactions betwee...