259 search results - page 42 / 52 » An inconsistency tolerant approach to querying spatial datab... |
EDBT
2006
ACM
15 years 9 months ago
2006
ACM
Given a set of N multi-dimensional points, we study the computation of -quantiles according to a ranking function F, which is provided by the user at runtime. Specifically, F compu...
WWW
2005
ACM
15 years 10 months ago
2005
ACM
Continuous queries are used to monitor changes to time varying data and to provide results useful for online decision making. Typically a user desires to obtain the value of some ...
TC
1997
14 years 10 months ago
1997
In this paper we describe a new approach to repairing violations of integrity constraints in databases with null values. By adopting basic concepts from model-based diagnosis, we ...
124
click to vote
ICDE
2010
IEEE
15 years 9 months ago
2010
IEEE
The Voronoi diagram is an important technique for answering nearest-neighbor queries for spatial databases. In this paper, we study how the Voronoi diagram can be used on uncertain...
154
click to vote
VLDB
2004
ACM
15 years 9 months ago
2004
ACM
Abstract. In dynamic environments like the Web, data sources may change not only their data but also their schemas, their semantics, and their query capabilities.When a mapping is ...