1709 search results - page 250 / 342 » Comparing the Performance of Database Selection Algorithms |
159
click to vote
ACII
2005
Springer
15 years 7 months ago
2005
Springer
The null space N(St) of total scatter matrix St contains no useful information for pattern classification. So, discarding the null space N(St) results in dimensionality reduction ...
162
Voted
DOLAP
2005
ACM
15 years 7 months ago
2005
ACM
Online Analytical Processing is a powerful framework for the analysis of organizational data. OLAP is often supported by a logical structure known as a data cube, a multidimension...
132
Voted
DKE
2006
15 years 5 months ago
2006
In this paper, we present a new approach to derive groupings of mobile users based on their movement data. We assume that the user movement data are collected by logging location ...
113
Voted
ICC
2009
IEEE
15 years 2 months ago
2009
IEEE
This paper deals with a wireless indoor positioning problem in which the location of a tag is estimated from range measurements taken by fixed beacons. The measurements may be affe...
247
click to vote
ICDE
2008
IEEE
16 years 6 months ago
2008
IEEE
Abstract-- We present COLR-Tree, an abstraction layer designed to support efficient spatio-temporal queries on live data gathered from a large collection of sensors. We use COLR-Tr...