117 search results - page 19 / 24 » Metric operations on fuzzy spatial objects in databases |
SRDS
2006
IEEE
14 years 1 months ago
2006
IEEE
In order to safeguard a sensitive database, we must ensure both its privacy and its longevity. However, privacy and longevity tend to be competing objectives. We show how to desig...
SSD
2005
Springer
14 years 1 months ago
2005
Springer
Abstract. A top-k OLAP query groups measures with respect to some abstraction level of interesting dimensions and selects the k groups with the highest aggregate value. An example ...
ICDE
1998
IEEE
14 years 9 months ago
1998
IEEE
?Past R-tree studies have focused on the number of nodes visited as a metric of query performance. Since database systems usually include a buffering mechanism, we propose that the...
VLDB
1998
ACM
13 years 12 months ago
1998
ACM
Data warehouses provide a great deal of opportunities for performing data mining tasks such as classification and clustering. Typically, updates are collected and applied to the d...
ICMCS
1995
IEEE
13 years 11 months ago
1995
IEEE
This paper presents a framework for data modeling ntic abstraction of image/video data. The framework is based on spatio-temporalinformation associated with salient objects in an ...