189 search results - page 6 / 38 » Answering general time sensitive queries |
SIGMOD
2012
ACM
11 years 10 months ago
2012
ACM
The rise of smartphones equipped with various sensors has enabled personalization of various applications based on user contexts extracted from sensor readings. At the same time i...
SIGMOD
2011
ACM
12 years 10 months ago
2011
ACM
Ranking queries report the top-K results according to a user-defined scoring function. A widely used scoring function is the weighted summation of multiple scores. Often times, u...
ICDE
2003
IEEE
14 years 9 months ago
2003
IEEE
In moving object environments, it is infeasible for the database tracking the movement of objects to store the exact locations of objects at all times. Typically, the location of a...
ICDE
2004
IEEE
14 years 9 months ago
2004
IEEE
We examine the problem of evaluating selection queries over imprecisely represented objects. Such objects are used either because they are much smaller in size than the precise on...
ESA
2008
Springer
13 years 9 months ago
2008
Springer
Abstract. We consider approximate nearest neighbor searching in metric spaces of constant doubling dimension. More formally, we are given a set S of n points and an error bound &g...