444 search results - page 67 / 89 » Instance optimal query processing in spatial networks |
MOBICOM
2004
ACM
14 years 1 months ago
2004
ACM
In this paper we consider the problem of searching for a node or an object (i.e., piece of data, file, etc.) in a large network. Applications of this problem include searching fo...
EGITALY
2006
13 years 9 months ago
2006
Palette re-ordering is a well known and very effective approach for improving the compression of color-indexed images. If the spatial distribution of the indexes in the image is s...
TWC
2011
13 years 2 months ago
2011
—In this paper, the performance of the ALOHA and CSMA MAC protocols are analyzed in spatially distributed wireless networks. The main system objective is correct reception of pac...
CIKM
2010
Springer
13 years 6 months ago
2010
Springer
In this paper, we study a novel problem Collective Active Learning, in which we aim to select a batch set of "informative" instances from a networking data set to query ...
ICDT
2005
ACM
14 years 1 months ago
2005
ACM
Abstract. A classical problem in query optimization is to find the optimal ordering of a set of possibly correlated selections. We provide an ion of this problem as a generalizati...