651 search results - page 106 / 131 » Algebraic Query Optimization for Distributed Top-k Queries |
MOBICOM
2004
ACM
14 years 2 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...
ML
2007
ACM
13 years 8 months ago
2007
ACM
We prove new lower bounds for learning intersections of halfspaces, one of the most important concept classes in computational learning theory. Our main result is that any statist...
GIS
2005
ACM
14 years 10 months ago
2005
ACM
Geographic Information Systems (GIS) are increasingly managing very large sets of data and hence a centralized data repository may not always provide the most scalable solution. H...
ICDE
2010
IEEE
14 years 3 months ago
2010
IEEE
— In this paper we propose PARINET, a new access method to efficiently retrieve the trajectories of objects moving in networks. The structure of PARINET is based on a combination...
CN
2007
13 years 9 months ago
2007
Although the ant metaphor has been successfully applied to routing of data packets both in wireless and fixed networks, little is known yet about its appropriateness for search i...