148 search results - page 19 / 30 » Evaluation of Queries on Tree-Structured Data Using Dimensio... |
DOLAP
2000
ACM
13 years 12 months ago
2000
ACM
Being able to efficiently answer arbitrary OLAP queries that aggregate along any combination of dimensions over numerical and categorical attributes has been a continued, major co...
ICDE
2006
IEEE
14 years 9 months ago
2006
IEEE
Given an object q, modeled by a multidimensional point, a reverse nearest neighbors (RNN) query returns the set of objects in the database that have q as their nearest neighbor. I...
GIS
2007
ACM
14 years 8 months ago
2007
ACM
In this paper, we present an original network graph embedding to speed-up distance-range and k-nearest neighbor queries in (weighted) graphs. Our approach implements the paradigm ...
ICDE
2010
IEEE
14 years 2 months ago
2010
IEEE
— In this paper we propose PARINET, a new access method to efficiently retrieve the trajectories of objects moving in networks. The structure of PARINET is based on a combination...
GRID
2007
Springer
13 years 11 months ago
2007
Springer
We propose strategies to efficiently execute a query workload, which consists of multiple related queries submitted against a scientific dataset, on a distributed-memory system in...