6495 search results - page 43 / 1299 » Modeling Multidimensional Databases |
IDEAS
2006
IEEE
14 years 4 months ago
2006
IEEE
Histograms are being used as non-parametric selectivity estimators for one-dimensional data. For highdimensional data it is common to either compute onedimensional histograms for ...
EDBT
2006
ACM
14 years 10 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...
DASFAA
1999
IEEE
14 years 2 months ago
1999
IEEE
Data summarization is very important for many data analysis tasks. In this paper we propose a simple but efficient data summarization algorithm, which outputs a histogram for mult...
ISBI
2007
IEEE
14 years 4 months ago
2007
IEEE
This paper presents a multi-dimensional point scatterer distribution model for the context of ultrasound image simulation. The model has a simple parameterisation, has low computa...
ICIP
2001
IEEE
14 years 11 months ago
2001
IEEE
: We conducted psychophysical experiments to gain insight into the semantic categories that guide the human perception of image similarity. We analyzed the perceptual data using mu...