313 search results - page 28 / 63 » Cost-Based Object Query Optimization |
SIGMOD
1991
ACM
15 years 1 months ago
1991
ACM
This paper presents an architecture for a persistent object store in which multi-level storage is explicitly included. Traditionally, DBMSs have assumed that all accessible data r...
CSREAEEE
2006
14 years 11 months ago
2006
- Inherent limitations of mobile computing environment such as limited bandwidth, limited resourced mobile phones, and instability of wireless environment require summarized mobile...
WWW
2008
ACM
15 years 10 months ago
2008
ACM
In this paper, we propose a novel unsupervised approach to query segmentation, an important task in Web search. We use a generative query model to recover a query's underlyin...
SIGMOD
2001
ACM
15 years 10 months ago
2001
ACM
Users often need to optimize the selection of objects by appropriately weighting the importance of multiple object attributes. Such optimization problems appear often in operation...
SIGMOD
1989
ACM
15 years 1 months ago
1989
ACM
Spatial objects other than points and boxes can be stored in spatial indexes, but the techniques usually require the use of approximations that can be arbitrarily bad. This leads ...