125 search results - page 1 / 25 » DOT: A Spatial Access Method Using Fractals |
ICDE
1991
IEEE
13 years 8 months ago
1991
IEEE
Existing Database Management Systems (DBMSs) do not handle efficiently multi-dimensional data such as boxes, polygons, or even points in a multi-dimensional space. We examine acc...
PODS
1989
ACM
13 years 8 months ago
1989
ACM
In this paper we propose the use of fractals and especially the Hilbert curve, in order to design good distance-preserving mappings. Such mappings improve the performance of secon...
GIS
1998
ACM
13 years 4 months ago
1998
ACM
Geographical Information Systems (GIS) involve the manipulation of large spatial data sets, and the performance of these systems is often determined by how these data sets are orga...
ISI
2007
Springer
13 years 10 months ago
2007
Springer
— Often document dissemination is limited to a “need to know” basis so as to better maintain organizational trade secrets. Retrieving documents that are off-topic to a user...
ICIP
2006
IEEE
14 years 6 months ago
2006
IEEE
We propose an analytic method to overcome the trade-off between the spatial and tonal resolution of traditional clustered dot halftones. Continuous phase modulated halftones that ...