3456 search results - page 145 / 692 » Semantics in Spatial Databases |
DEXA
2010
Springer
13 years 5 months ago
2010
Springer
Abstract. There is a significant commercial and research interest in locationbased web search engines. Given a number of search keywords and one or more locations that a user is in...
Publication
This paper tackles a major privacy threat in current location-based services where users have to report their exact locations to the database server in order to obtain their desire...
WWW
2008
ACM
14 years 9 months ago
2008
ACM
Local aspects of Web search -- associating Web content and queries with geography -- is a topic of growing interest. However, the underlying question of how spatial variation is m...
DEXA
2003
Springer
14 years 1 months ago
2003
Springer
Emerging applications using miniature electronic devices (e.g., tracking mobile objects using sensors) generate very large amounts of highly dynamic data that poses very high overh...
VLDB
1994
ACM
14 years 10 days ago
1994
ACM
The performance of data-parallel algorithms for spatial operations using data-parallel variants of the bucket PMR quadtree, R-tree, and R+-tree spatial data structures is compared...