2853 search results - page 337 / 571 » On the Efficiency of Provenance Queries |
173
click to vote
COMPSAC
1996
IEEE
15 years 10 months ago
1996
IEEE
We present the architecture and design details of a logic database system that extends functionality in a number of ways. The system supports indefinite (non-Horn) facts in extens...
147
click to vote
VLDB
1994
ACM
15 years 10 months ago
1994
ACM
This paper introduces a new data structure, called V-trees, designed to store long sequences of points in 2D space and yet allow efficient access to their fragments. They also opt...
170
click to vote
GIS
1997
ACM
15 years 10 months ago
1997
ACM
Spatial indexes, such as the PMR quadtree, are important in spatial databases for efficient execution of queries involving spatial constraints, especially when the queries involve...
163
click to vote
AAAI
2010
15 years 8 months ago
2010
There is a growing need for efficient and scalable semantic web queries that handle inference. There is also a growing interest in representing uncertainty in semantic web knowled...
169
click to vote
CCCG
2006
15 years 8 months ago
2006
A k-nearest neighbor search algorithm for the Pyramid technique is presented. The Pyramid technique divides d-dimensional data space into 2d pyramids. Given a query point q, we in...